October 2021 - Linux-stable-mirror

stable-rc/queue/4.4 build: 182 builds: 5 failed, 177 passed, 6 errors, 35 warnings (v4.4.290-9-g7cba289fdf55)

by kernelci.org bot

stable-rc/queue/4.4 build: 182 builds: 5 failed, 177 passed, 6 errors, 35 warnings (v4.4.290-9-g7cba289fdf55) Full Build Summary: https://kernelci.org/build/stable-rc/branch/queue%2F4.4/kernel/v4.4.290-9-g… Tree: stable-rc Branch: queue/4.4 Git Describe: v4.4.290-9-g7cba289fdf55 Git Commit: 7cba289fdf55937e06ef7adb38bedf8db54dc1ac Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 6 unique architectures Build Failures Detected: arm: rpc_defconfig: (gcc-10) FAIL mips: fuloong2e_defconfig: (gcc-10) FAIL ip27_defconfig: (gcc-10) FAIL ip28_defconfig: (gcc-10) FAIL lemote2f_defconfig: (gcc-10) FAIL Errors and Warnings Detected: arc: arm64: defconfig (gcc-10): 1 warning arm: clps711x_defconfig (gcc-10): 1 warning davinci_all_defconfig (gcc-10): 1 warning lpc32xx_defconfig (gcc-10): 1 warning mini2440_defconfig (gcc-10): 1 warning mxs_defconfig (gcc-10): 1 warning omap1_defconfig (gcc-10): 1 warning rpc_defconfig (gcc-10): 2 errors s3c2410_defconfig (gcc-10): 1 warning s3c6400_defconfig (gcc-10): 2 warnings i386: i386_defconfig (gcc-10): 2 warnings mips: fuloong2e_defconfig (gcc-10): 2 errors ip22_defconfig (gcc-10): 1 warning lemote2f_defconfig (gcc-10): 2 errors mtx1_defconfig (gcc-10): 3 warnings x86_64: allnoconfig (gcc-10): 4 warnings tinyconfig (gcc-10): 3 warnings x86_64_defconfig (gcc-10): 6 warnings x86_64_defconfig+x86-chromebook (gcc-10): 6 warnings Errors summary: 4 cc1: error: ‘-mloongson-mmi’ must be used with ‘-mhard-float’ 1 arm-linux-gnueabihf-gcc: error: unrecognized -march target: armv3 1 arm-linux-gnueabihf-gcc: error: missing argument to ‘-march=’ Warnings summary: 7 arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' 4 arch/x86/entry/entry_64.S:487: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' 4 arch/x86/entry/entry_64.S:1642: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' 3 ld: warning: creating DT_TEXTREL in a PIE 3 drivers/tty/serial/samsung.c:1780:34: warning: array ‘s3c24xx_uart_dt_match’ assumed to have one element 2 sound/pci/echoaudio/echoaudio_dsp.c:647:9: warning: iteration 1073741824 invokes undefined behavior [-Waggressive-loop-optimizations] 2 ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' 1 sound/pci/echoaudio/echoaudio_dsp.c:658:9: warning: iteration 1073741824 invokes undefined behavior [-Waggressive-loop-optimizations] 1 ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' 1 drivers/net/ethernet/seeq/sgiseeq.c:804:26: warning: passing argument 5 of ‘dma_free_attrs’ makes pointer from integer without a cast [-Wint-conversion] 1 drivers/net/ethernet/apm/xgene/xgene_enet_main.c:32:36: warning: array ‘xgene_enet_acpi_match’ assumed to have one element 1 drivers/mmc/host/sdhci-s3c.c:429:34: warning: array ‘sdhci_s3c_dt_match’ assumed to have one element 1 drivers/gpio/gpio-omap.c:1161:34: warning: array ‘omap_gpio_match’ assumed to have one element 1 arch/arm/mach-mxs/mach-mxs.c:285:26: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] 1 arch/arm/mach-lpc32xx/phy3250.c:215:36: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] 1 arch/arm/mach-davinci/da8xx-dt.c:23:34: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] 1 arch/arm/mach-clps711x/board-autcpu12.c:163:26: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- acs5k_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- acs5k_tiny_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-10) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.S:487: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' arch/x86/entry/entry_64.S:1642: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' -------------------------------------------------------------------------------- allnoconfig (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- am200epdkit_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ar7_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- assabet_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- at91_dt_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath79_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axm55xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- badge4_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm2835_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm47xx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm63xx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bigsur_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_be_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_stb_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- capcella_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cavium_octeon_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cerfcube_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ci20_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- clps711x_defconfig (arm, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/arm/mach-clps711x/board-autcpu12.c:163:26: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] -------------------------------------------------------------------------------- cm_x2xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x300_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cobalt_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa270_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa300_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- collie_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- corgi_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- davinci_all_defconfig (arm, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/arm/mach-davinci/da8xx-dt.c:23:34: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] -------------------------------------------------------------------------------- db1xxx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (arm64, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/net/ethernet/apm/xgene/xgene_enet_main.c:32:36: warning: array ‘xgene_enet_acpi_match’ assumed to have one element -------------------------------------------------------------------------------- dove_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- e55_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ebsa110_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- efm32_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- em_x270_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ep93xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- eseries_pxa_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- exynos_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ezx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- footbridge_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- fuloong2e_defconfig (mips, gcc-10) — FAIL, 2 errors, 0 warnings, 0 section mismatches Errors: cc1: error: ‘-mloongson-mmi’ must be used with ‘-mhard-float’ cc1: error: ‘-mloongson-mmi’ must be used with ‘-mhard-float’ -------------------------------------------------------------------------------- gpr_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h3600_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h5000_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hackkit_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hisi_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- imote2_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v4_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- integrator_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop13xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop32x_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop33x_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip22_defconfig (mips, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/net/ethernet/seeq/sgiseeq.c:804:26: warning: passing argument 5 of ‘dma_free_attrs’ makes pointer from integer without a cast [-Wint-conversion] -------------------------------------------------------------------------------- ip27_defconfig (mips, gcc-10) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip28_defconfig (mips, gcc-10) — FAIL, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip32_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ixp4xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jazz_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jmr3927_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jornada720_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- keystone_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ks8695_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lart_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lasat_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lemote2f_defconfig (mips, gcc-10) — FAIL, 2 errors, 0 warnings, 0 section mismatches Errors: cc1: error: ‘-mloongson-mmi’ must be used with ‘-mhard-float’ cc1: error: ‘-mloongson-mmi’ must be used with ‘-mhard-float’ -------------------------------------------------------------------------------- loongson3_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc18xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc32xx_defconfig (arm, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/arm/mach-lpc32xx/phy3250.c:215:36: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] -------------------------------------------------------------------------------- lpd270_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ls1b_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lubbock_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- magician_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mainstone_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_guest_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaaprp_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_eva_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_xpa_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- markeins_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mini2440_defconfig (arm, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/tty/serial/samsung.c:1780:34: warning: array ‘s3c24xx_uart_dt_match’ assumed to have one element -------------------------------------------------------------------------------- mips_paravirt_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mmp2_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mpc30x_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- msp71xx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mtx1_defconfig (mips, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: sound/pci/echoaudio/echoaudio_dsp.c:647:9: warning: iteration 1073741824 invokes undefined behavior [-Waggressive-loop-optimizations] sound/pci/echoaudio/echoaudio_dsp.c:658:9: warning: iteration 1073741824 invokes undefined behavior [-Waggressive-loop-optimizations] sound/pci/echoaudio/echoaudio_dsp.c:647:9: warning: iteration 1073741824 invokes undefined behavior [-Waggressive-loop-optimizations] -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mv78xx0_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mxs_defconfig (arm, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: arch/arm/mach-mxs/mach-mxs.c:285:26: warning: duplicate ‘const’ declaration specifier [-Wduplicate-decl-specifier] -------------------------------------------------------------------------------- netwinder_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- netx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nhk8815_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlp_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlr_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc910_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc950_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc960_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap1_defconfig (arm, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/gpio/gpio-omap.c:1161:34: warning: array ‘omap_gpio_match’ assumed to have one element -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- orion5x_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- palmz72_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pcm027_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pleb_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pnx8335_stb225_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- prima2_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa168_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa255-idp_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa3xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa910_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qcom_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qi_lb60_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- raumfeld_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rbtx49xx_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- realview-smp_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- realview_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rm200_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rpc_defconfig (arm, gcc-10) — FAIL, 2 errors, 0 warnings, 0 section mismatches Errors: arm-linux-gnueabihf-gcc: error: unrecognized -march target: armv3 arm-linux-gnueabihf-gcc: error: missing argument to ‘-march=’ -------------------------------------------------------------------------------- rt305x_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c2410_defconfig (arm, gcc-10) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/tty/serial/samsung.c:1780:34: warning: array ‘s3c24xx_uart_dt_match’ assumed to have one element -------------------------------------------------------------------------------- s3c6400_defconfig (arm, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: drivers/mmc/host/sdhci-s3c.c:429:34: warning: array ‘sdhci_s3c_dt_match’ assumed to have one element drivers/tty/serial/samsung.c:1780:34: warning: array ‘s3c24xx_uart_dt_match’ assumed to have one element -------------------------------------------------------------------------------- s5pv210_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sama5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sb1250_swarm_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sead3_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sead3micro_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shannon_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shmobile_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- simpad_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- socfpga_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear13xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear3xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear6xx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spitz_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- stm32_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sunxi_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0219_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0226_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0287_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tct_hammer_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tegra_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.S:487: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' arch/x86/entry/entry_64.S:1642: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' -------------------------------------------------------------------------------- tinyconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- trizeps4_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u300_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u8500_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- versatile_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vf610m4_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- viper_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vt8500_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- workpad_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-10) — PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.S:487: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' arch/x86/entry/entry_64.S:1642: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- x86_64_defconfig+x86-chromebook (x86_64, gcc-10) — PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.S:487: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' arch/x86/entry/entry_64.S:1642: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- xcep_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xilfpga_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xway_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zeus_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zx_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches --- For more info write to <info(a)kernelci.org>

3 years, 2 months

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[PATCH 4.19 0/3] ipv4/ipv6: backport fixes for CVE-2021-20322

by Ovidiu Panait

The following commits are needed to fix CVE-2021-20322: ipv4: [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ipv6: [3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… [4] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… Commit [2] is already present in 4.19 stable, so backport the remaining three fixes with minor context adjustments. Eric Dumazet (3): ipv4: use siphash instead of Jenkins in fnhe_hashfun() ipv6: use siphash in rt6_exception_hash() ipv6: make exception cache less predictible net/ipv4/route.c | 12 ++++++------ net/ipv6/route.c | 25 ++++++++++++++++++------- 2 files changed, 24 insertions(+), 13 deletions(-) -- 2.25.1

3 years, 2 months

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[PATCH v2] xen/balloon: add late_initcall_sync() for initial ballooning done

by Juergen Gross

When running as PVH or HVM guest with actual memory < max memory the hypervisor is using "populate on demand" in order to allow the guest to balloon down from its maximum memory size. For this to work correctly the guest must not touch more memory pages than its target memory size as otherwise the PoD cache will be exhausted and the guest is crashed as a result of that. In extreme cases ballooning down might not be finished today before the init process is started, which can consume lots of memory. In order to avoid random boot crashes in such cases, add a late init call to wait for ballooning down having finished for PVH/HVM guests. Warn on console if ballooning stalls for more than 1 minute, panic() after stalling for more than 3 minutes. Cc: <stable(a)vger.kernel.org> Reported-by: Marek Marczykowski-Górecki <marmarek(a)invisiblethingslab.com> Signed-off-by: Juergen Gross <jgross(a)suse.com> --- V2: - add warning and panic() when stalling (Marek Marczykowski-Górecki) - don't wait if credit > 0 --- drivers/xen/balloon.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 3a50f097ed3e..c0c1c754e515 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -765,3 +765,38 @@ static int __init balloon_init(void) return 0; } subsys_initcall(balloon_init); + +static int __init balloon_wait_finish(void) +{ + long credit, last_credit = 0; + unsigned long last_changed; + + if (!xen_domain()) + return -ENODEV; + + /* PV guests don't need to wait. */ + if (xen_pv_domain() || !current_credit()) + return 0; + + pr_info("Waiting for initial ballooning down having finished.\n"); + + while ((credit = current_credit()) < 0) { + if (credit != last_credit) { + last_changed = jiffies; + last_credit = credit; + } + if (jiffies - last_changed >= HZ * 60) { + pr_warn_once("Initial ballooning stalling for 60s, %ld pages need to be freed.\n", + -credit); + } + if (jiffies - last_changed >= 3 * HZ * 60) + panic("Initial ballooning failed!\n"); + + schedule_timeout_interruptible(HZ / 10); + } + + pr_info("Initial ballooning down finished.\n"); + + return 0; +} +late_initcall_sync(balloon_wait_finish); -- 2.26.2

3 years, 2 months

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ext4: fix possible UAF when remounting r/o a mmp-protected file system

by Tadeusz Struk

Hi, Upstream commit id: 61bb4a1c417e5b95d9edb4f887f131de32e419cb is still missing from stable 5.10 and syzkaller has found the gap: https://syzkaller.appspot.com/bug?id=990c7f09780460b8165714b9c9751ae8432587… It should be applied to stable kernels: 5.10 -- Thanks, Tadeusz

3 years, 2 months

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[patch 09/11] mm: khugepaged: skip huge page collapse for special files

by Andrew Morton

From: Yang Shi <shy828301(a)gmail.com> Subject: mm: khugepaged: skip huge page collapse for special files The read-only THP for filesystems will collapse THP for files opened readonly and mapped with VM_EXEC. The intended usecase is to avoid TLB misses for large text segments. But it doesn't restrict the file types so a THP could be collapsed for a non-regular file, for example, block device, if it is opened readonly and mapped with EXEC permission. This may cause bugs, like [1] and [2]. This is definitely not the intended usecase, so just collapse THP for regular files in order to close the attack surface. [1] https://lore.kernel.org/lkml/CACkBjsYwLYLRmX8GpsDpMthagWOjWWrNxqY6ZLNQVr6yx… [2] https://lore.kernel.org/linux-mm/000000000000c6a82505ce284e4c@google.com/ [shy828301(a)gmail.com: fix vm_file check] Link: https://lkml.kernel.org/r/CAHbLzkqTW9U3VvTu1Ki5v_cLRC9gHW+znBukg_ycergE0JWj… Link: https://lkml.kernel.org/r/20211027195221.3825-1-shy828301@gmail.com Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS") Signed-off-by: Hugh Dickins <hughd(a)google.com> Signed-off-by: Yang Shi <shy828301(a)gmail.com> Reported-by: Hao Sun <sunhao.th(a)gmail.com> Reported-by: syzbot+aae069be1de40fb11825(a)syzkaller.appspotmail.com Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Cc: Song Liu <songliubraving(a)fb.com> Cc: Andrea Righi <andrea.righi(a)canonical.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/khugepaged.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) --- a/mm/khugepaged.c~mm-khugepaged-skip-huge-page-collapse-for-special-files +++ a/mm/khugepaged.c @@ -445,22 +445,25 @@ static bool hugepage_vma_check(struct vm if (!transhuge_vma_enabled(vma, vm_flags)) return false; + if (vma->vm_file && !IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - + vma->vm_pgoff, HPAGE_PMD_NR)) + return false; + /* Enabled via shmem mount options or sysfs settings. */ - if (shmem_file(vma->vm_file) && shmem_huge_enabled(vma)) { - return IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - vma->vm_pgoff, - HPAGE_PMD_NR); - } + if (shmem_file(vma->vm_file)) + return shmem_huge_enabled(vma); /* THP settings require madvise. */ if (!(vm_flags & VM_HUGEPAGE) && !khugepaged_always()) return false; - /* Read-only file mappings need to be aligned for THP to work. */ + /* Only regular file is valid */ if (IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS) && vma->vm_file && - !inode_is_open_for_write(vma->vm_file->f_inode) && (vm_flags & VM_EXEC)) { - return IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - vma->vm_pgoff, - HPAGE_PMD_NR); + struct inode *inode = vma->vm_file->f_inode; + + return !inode_is_open_for_write(inode) && + S_ISREG(inode->i_mode); } if (!vma->anon_vma || vma->vm_ops) _

3 years, 2 months

1
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[patch 08/11] mm, thp: bail out early in collapse_file for writeback page

by Andrew Morton

From: Rongwei Wang <rongwei.wang(a)linux.alibaba.com> Subject: mm, thp: bail out early in collapse_file for writeback page Currently collapse_file does not explicitly check PG_writeback, instead, page_has_private and try_to_release_page are used to filter writeback pages. This does not work for xfs with blocksize equal to or larger than pagesize, because in such case xfs has no page->private. This makes collapse_file bail out early for writeback page. Otherwise, xfs end_page_writeback will panic as follows. page:fffffe00201bcc80 refcount:0 mapcount:0 mapping:ffff0003f88c86a8 index:0x0 pfn:0x84ef32 aops:xfs_address_space_operations [xfs] ino:30000b7 dentry name:"libtest.so" flags: 0x57fffe0000008027(locked|referenced|uptodate|active|writeback) raw: 57fffe0000008027 ffff80001b48bc28 ffff80001b48bc28 ffff0003f88c86a8 raw: 0000000000000000 0000000000000000 00000000ffffffff ffff0000c3e9a000 page dumped because: VM_BUG_ON_PAGE(((unsigned int) page_ref_count(page) + 127u <= 127u)) page->mem_cgroup:ffff0000c3e9a000 ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:1212! Internal error: Oops - BUG: 0 [#1] SMP Modules linked in: BUG: Bad page state in process khugepaged pfn:84ef32 xfs(E) page:fffffe00201bcc80 refcount:0 mapcount:0 mapping:0 index:0x0 pfn:0x84ef32 libcrc32c(E) rfkill(E) aes_ce_blk(E) crypto_simd(E) ... CPU: 25 PID: 0 Comm: swapper/25 Kdump: loaded Tainted: ... pstate: 60400005 (nZCv daif +PAN -UAO -TCO BTYPE=--) pc : end_page_writeback+0x1c0/0x214 lr : end_page_writeback+0x1c0/0x214 sp : ffff800011ce3cc0 x29: ffff800011ce3cc0 x28: 0000000000000000 x27: ffff000c04608040 x26: 0000000000000000 x25: ffff000c04608040 x24: 0000000000001000 x23: ffff0003f88c8530 x22: 0000000000001000 x21: ffff0003f88c8530 x20: 0000000000000000 x19: fffffe00201bcc80 x18: 0000000000000030 x17: 0000000000000000 x16: 0000000000000000 x15: ffff000c018f9760 x14: ffffffffffffffff x13: ffff8000119d72b0 x12: ffff8000119d6ee3 x11: ffff8000117b69b8 x10: 00000000ffff8000 x9 : ffff800010617534 x8 : 0000000000000000 x7 : ffff8000114f69b8 x6 : 000000000000000f x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000400 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: end_page_writeback+0x1c0/0x214 iomap_finish_page_writeback+0x13c/0x204 iomap_finish_ioend+0xe8/0x19c iomap_writepage_end_bio+0x38/0x50 bio_endio+0x168/0x1ec blk_update_request+0x278/0x3f0 blk_mq_end_request+0x34/0x15c virtblk_request_done+0x38/0x74 [virtio_blk] blk_done_softirq+0xc4/0x110 __do_softirq+0x128/0x38c __irq_exit_rcu+0x118/0x150 irq_exit+0x1c/0x30 __handle_domain_irq+0x8c/0xf0 gic_handle_irq+0x84/0x108 el1_irq+0xcc/0x180 arch_cpu_idle+0x18/0x40 default_idle_call+0x4c/0x1a0 cpuidle_idle_call+0x168/0x1e0 do_idle+0xb4/0x104 cpu_startup_entry+0x30/0x9c secondary_start_kernel+0x104/0x180 Code: d4210000 b0006161 910c8021 94013f4d (d4210000) ---[ end trace 4a88c6a074082f8c ]--- Kernel panic - not syncing: Oops - BUG: Fatal exception in interrupt Link: https://lkml.kernel.org/r/20211022023052.33114-1-rongwei.wang@linux.alibaba… Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS") Signed-off-by: Rongwei Wang <rongwei.wang(a)linux.alibaba.com> Signed-off-by: Xu Yu <xuyu(a)linux.alibaba.com> Suggested-by: Yang Shi <shy828301(a)gmail.com> Reviewed-by: Matthew Wilcox (Oracle) <willy(a)infradead.org> Reviewed-by: Yang Shi <shy828301(a)gmail.com> Acked-by: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Cc: Song Liu <song(a)kernel.org> Cc: William Kucharski <william.kucharski(a)oracle.com> Cc: Hugh Dickins <hughd(a)google.com> Cc: Mike Kravetz <mike.kravetz(a)oracle.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/khugepaged.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/mm/khugepaged.c~mm-thp-bail-out-early-in-collapse_file-for-writeback-page +++ a/mm/khugepaged.c @@ -1763,6 +1763,10 @@ static void collapse_file(struct mm_stru filemap_flush(mapping); result = SCAN_FAIL; goto xa_unlocked; + } else if (PageWriteback(page)) { + xas_unlock_irq(&xas); + result = SCAN_FAIL; + goto xa_unlocked; } else if (trylock_page(page)) { get_page(page); xas_unlock_irq(&xas); @@ -1798,7 +1802,8 @@ static void collapse_file(struct mm_stru goto out_unlock; } - if (!is_shmem && PageDirty(page)) { + if (!is_shmem && (PageDirty(page) || + PageWriteback(page))) { /* * khugepaged only works on read-only fd, so this * page is dirty because it hasn't been flushed _

3 years, 2 months

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[patch 05/11] ocfs2: fix race between searching chunks and release journal_head from buffer_head

by Andrew Morton

From: Gautham Ananthakrishna <gautham.ananthakrishna(a)oracle.com> Subject: ocfs2: fix race between searching chunks and release journal_head from buffer_head Encountered a race between ocfs2_test_bg_bit_allocatable() and jbd2_journal_put_journal_head() resulting in the below vmcore. PID: 106879 TASK: ffff880244ba9c00 CPU: 2 COMMAND: "loop3" 0 [ffff8802435ff1c0] panic at ffffffff816ed175 1 [ffff8802435ff240] oops_end at ffffffff8101a7c9 2 [ffff8802435ff270] no_context at ffffffff8106eccf 3 [ffff8802435ff2e0] __bad_area_nosemaphore at ffffffff8106ef9d 4 [ffff8802435ff330] bad_area_nosemaphore at ffffffff8106f143 5 [ffff8802435ff340] __do_page_fault at ffffffff8106f80b 6 [ffff8802435ff3a0] do_page_fault at ffffffff8106fc2f 7 [ffff8802435ff3e0] page_fault at ffffffff816fd667 [exception RIP: ocfs2_block_group_find_clear_bits+316] RIP: ffffffffc11ef6fc RSP: ffff8802435ff498 RFLAGS: 00010206 RAX: 0000000000003918 RBX: 0000000000000001 RCX: 0000000000000018 RDX: 0000000000003918 RSI: 0000000000000000 RDI: ffff880060194040 RBP: ffff8802435ff4f8 R8: ffffffffff000000 R9: ffffffffffffffff R10: ffff8802435ff730 R11: ffff8802a94e5800 R12: 0000000000000007 R13: 0000000000007e00 R14: 0000000000003918 R15: ffff88017c973a28 ORIG_RAX: ffffffffffffffff CS: e030 SS: e02b 8 [ffff8802435ff490] ocfs2_block_group_find_clear_bits at ffffffffc11ef680 [ocfs2] 9 [ffff8802435ff500] ocfs2_cluster_group_search at ffffffffc11ef916 [ocfs2] 10 [ffff8802435ff580] ocfs2_search_chain at ffffffffc11f0fb6 [ocfs2] 11 [ffff8802435ff660] ocfs2_claim_suballoc_bits at ffffffffc11f1b1b [ocfs2] 12 [ffff8802435ff6f0] __ocfs2_claim_clusters at ffffffffc11f32cb [ocfs2] 13 [ffff8802435ff770] ocfs2_claim_clusters at ffffffffc11f5caf [ocfs2] 14 [ffff8802435ff780] ocfs2_local_alloc_slide_window at ffffffffc11cc0db [ocfs2] 15 [ffff8802435ff820] ocfs2_reserve_local_alloc_bits at ffffffffc11ce53f [ocfs2] 16 [ffff8802435ff890] ocfs2_reserve_clusters_with_limit at ffffffffc11f59b5 [ocfs2] 17 [ffff8802435ff8e0] ocfs2_reserve_clusters at ffffffffc11f5c88 [ocfs2] 18 [ffff8802435ff8f0] ocfs2_lock_refcount_allocators at ffffffffc11dc169 [ocfs2] 19 [ffff8802435ff960] ocfs2_make_clusters_writable at ffffffffc11e4274 [ocfs2] 20 [ffff8802435ffa50] ocfs2_replace_cow at ffffffffc11e4df1 [ocfs2] 21 [ffff8802435ffac0] ocfs2_refcount_cow at ffffffffc11e54b1 [ocfs2] 22 [ffff8802435ffb80] ocfs2_file_write_iter at ffffffffc11bf8f4 [ocfs2] 23 [ffff8802435ffcd0] lo_rw_aio at ffffffff814a1b5d 24 [ffff8802435ffd80] loop_queue_work at ffffffff814a2802 25 [ffff8802435ffe60] kthread_worker_fn at ffffffff810a80d2 26 [ffff8802435ffec0] kthread at ffffffff810a7afb 27 [ffff8802435fff50] ret_from_fork at ffffffff816f7da1 When ocfs2_test_bg_bit_allocatable() called bh2jh(bg_bh), the bg_bh->b_private NULL as jbd2_journal_put_journal_head() raced and released the jounal head from the buffer head. Needed to take bit lock for the bit 'BH_JournalHead' to fix this race. Link: https://lkml.kernel.org/r/1634820718-6043-1-git-send-email-gautham.ananthak… Signed-off-by: Gautham Ananthakrishna <gautham.ananthakrishna(a)oracle.com> Reviewed-by: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: <rajesh.sivaramasubramaniom(a)oracle.com> Cc: Mark Fasheh <mark(a)fasheh.com> Cc: Joel Becker <jlbec(a)evilplan.org> Cc: Junxiao Bi <junxiao.bi(a)oracle.com> Cc: Changwei Ge <gechangwei(a)live.cn> Cc: Gang He <ghe(a)suse.com> Cc: Jun Piao <piaojun(a)huawei.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/ocfs2/suballoc.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) --- a/fs/ocfs2/suballoc.c~ocfs2-race-between-searching-chunks-and-release-journal_head-from-buffer_head +++ a/fs/ocfs2/suballoc.c @@ -1251,7 +1251,7 @@ static int ocfs2_test_bg_bit_allocatable { struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data; struct journal_head *jh; - int ret; + int ret = 1; if (ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap)) return 0; @@ -1259,14 +1259,18 @@ static int ocfs2_test_bg_bit_allocatable if (!buffer_jbd(bg_bh)) return 1; - jh = bh2jh(bg_bh); - spin_lock(&jh->b_state_lock); - bg = (struct ocfs2_group_desc *) jh->b_committed_data; - if (bg) - ret = !ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap); - else - ret = 1; - spin_unlock(&jh->b_state_lock); + jbd_lock_bh_journal_head(bg_bh); + if (buffer_jbd(bg_bh)) { + jh = bh2jh(bg_bh); + spin_lock(&jh->b_state_lock); + bg = (struct ocfs2_group_desc *) jh->b_committed_data; + if (bg) + ret = !ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap); + else + ret = 1; + spin_unlock(&jh->b_state_lock); + } + jbd_unlock_bh_journal_head(bg_bh); return ret; } _

3 years, 2 months

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[patch 03/11] mm: filemap: check if THP has hwpoisoned subpage for PMD page fault

by Andrew Morton

From: Yang Shi <shy828301(a)gmail.com> Subject: mm: filemap: check if THP has hwpoisoned subpage for PMD page fault When handling shmem page fault the THP with corrupted subpage could be PMD mapped if certain conditions are satisfied. But kernel is supposed to send SIGBUS when trying to map hwpoisoned page. There are two paths which may do PMD map: fault around and regular fault. Before commit f9ce0be71d1f ("mm: Cleanup faultaround and finish_fault() codepaths") the thing was even worse in fault around path. The THP could be PMD mapped as long as the VMA fits regardless what subpage is accessed and corrupted. After this commit as long as head page is not corrupted the THP could be PMD mapped. In the regular fault path the THP could be PMD mapped as long as the corrupted page is not accessed and the VMA fits. This loophole could be fixed by iterating every subpage to check if any of them is hwpoisoned or not, but it is somewhat costly in page fault path. So introduce a new page flag called HasHWPoisoned on the first tail page. It indicates the THP has hwpoisoned subpage(s). It is set if any subpage of THP is found hwpoisoned by memory failure and after the refcount is bumped successfully, then cleared when the THP is freed or split. The soft offline path doesn't need this since soft offline handler just marks a subpage hwpoisoned when the subpage is migrated successfully. But shmem THP didn't get split then migrated at all. Link: https://lkml.kernel.org/r/20211020210755.23964-3-shy828301@gmail.com Fixes: 800d8c63b2e9 ("shmem: add huge pages support") Signed-off-by: Yang Shi <shy828301(a)gmail.com> Reviewed-by: Naoya Horiguchi <naoya.horiguchi(a)nec.com> Suggested-by: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Cc: Hugh Dickins <hughd(a)google.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Oscar Salvador <osalvador(a)suse.de> Cc: Peter Xu <peterx(a)redhat.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/page-flags.h | 23 +++++++++++++++++++++++ mm/huge_memory.c | 2 ++ mm/memory-failure.c | 14 ++++++++++++++ mm/memory.c | 9 +++++++++ mm/page_alloc.c | 4 +++- 5 files changed, 51 insertions(+), 1 deletion(-) --- a/include/linux/page-flags.h~mm-filemap-check-if-thp-has-hwpoisoned-subpage-for-pmd-page-fault +++ a/include/linux/page-flags.h @@ -171,6 +171,15 @@ enum pageflags { /* Compound pages. Stored in first tail page's flags */ PG_double_map = PG_workingset, +#ifdef CONFIG_MEMORY_FAILURE + /* + * Compound pages. Stored in first tail page's flags. + * Indicates that at least one subpage is hwpoisoned in the + * THP. + */ + PG_has_hwpoisoned = PG_mappedtodisk, +#endif + /* non-lru isolated movable page */ PG_isolated = PG_reclaim, @@ -668,6 +677,20 @@ PAGEFLAG_FALSE(DoubleMap) TESTSCFLAG_FALSE(DoubleMap) #endif +#if defined(CONFIG_MEMORY_FAILURE) && defined(CONFIG_TRANSPARENT_HUGEPAGE) +/* + * PageHasHWPoisoned indicates that at least one subpage is hwpoisoned in the + * compound page. + * + * This flag is set by hwpoison handler. Cleared by THP split or free page. + */ +PAGEFLAG(HasHWPoisoned, has_hwpoisoned, PF_SECOND) + TESTSCFLAG(HasHWPoisoned, has_hwpoisoned, PF_SECOND) +#else +PAGEFLAG_FALSE(HasHWPoisoned) + TESTSCFLAG_FALSE(HasHWPoisoned) +#endif + /* * Check if a page is currently marked HWPoisoned. Note that this check is * best effort only and inherently racy: there is no way to synchronize with --- a/mm/huge_memory.c~mm-filemap-check-if-thp-has-hwpoisoned-subpage-for-pmd-page-fault +++ a/mm/huge_memory.c @@ -2426,6 +2426,8 @@ static void __split_huge_page(struct pag /* lock lru list/PageCompound, ref frozen by page_ref_freeze */ lruvec = lock_page_lruvec(head); + ClearPageHasHWPoisoned(head); + for (i = nr - 1; i >= 1; i--) { __split_huge_page_tail(head, i, lruvec, list); /* Some pages can be beyond EOF: drop them from page cache */ --- a/mm/memory.c~mm-filemap-check-if-thp-has-hwpoisoned-subpage-for-pmd-page-fault +++ a/mm/memory.c @@ -3907,6 +3907,15 @@ vm_fault_t do_set_pmd(struct vm_fault *v return ret; /* + * Just backoff if any subpage of a THP is corrupted otherwise + * the corrupted page may mapped by PMD silently to escape the + * check. This kind of THP just can be PTE mapped. Access to + * the corrupted subpage should trigger SIGBUS as expected. + */ + if (unlikely(PageHasHWPoisoned(page))) + return ret; + + /* * Archs like ppc64 need additional space to store information * related to pte entry. Use the preallocated table for that. */ --- a/mm/memory-failure.c~mm-filemap-check-if-thp-has-hwpoisoned-subpage-for-pmd-page-fault +++ a/mm/memory-failure.c @@ -1694,6 +1694,20 @@ try_again: } if (PageTransHuge(hpage)) { + /* + * The flag must be set after the refcount is bumped + * otherwise it may race with THP split. + * And the flag can't be set in get_hwpoison_page() since + * it is called by soft offline too and it is just called + * for !MF_COUNT_INCREASE. So here seems to be the best + * place. + * + * Don't need care about the above error handling paths for + * get_hwpoison_page() since they handle either free page + * or unhandlable page. The refcount is bumped iff the + * page is a valid handlable page. + */ + SetPageHasHWPoisoned(hpage); if (try_to_split_thp_page(p, "Memory Failure") < 0) { action_result(pfn, MF_MSG_UNSPLIT_THP, MF_IGNORED); res = -EBUSY; --- a/mm/page_alloc.c~mm-filemap-check-if-thp-has-hwpoisoned-subpage-for-pmd-page-fault +++ a/mm/page_alloc.c @@ -1312,8 +1312,10 @@ static __always_inline bool free_pages_p VM_BUG_ON_PAGE(compound && compound_order(page) != order, page); - if (compound) + if (compound) { ClearPageDoubleMap(page); + ClearPageHasHWPoisoned(page); + } for (i = 1; i < (1 << order); i++) { if (compound) bad += free_tail_pages_check(page, page + i); _

3 years, 2 months

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[patch 02/11] mm: hwpoison: remove the unnecessary THP check

by Andrew Morton

From: Yang Shi <shy828301(a)gmail.com> Subject: mm: hwpoison: remove the unnecessary THP check When handling THP hwpoison checked if the THP is in allocation or free stage since hwpoison may mistreat it as hugetlb page. After commit 415c64c1453a ("mm/memory-failure: split thp earlier in memory error handling") the problem has been fixed, so this check is no longer needed. Remove it. The side effect of the removal is hwpoison may report unsplit THP instead of unknown error for shmem THP. It seems not like a big deal. The following patch "mm: filemap: check if THP has hwpoisoned subpage for PMD page fault" depends on this, which fixes shmem THP with hwpoisoned subpage(s) are mapped PMD wrongly. So this patch needs to be backported to -stable as well. Link: https://lkml.kernel.org/r/20211020210755.23964-2-shy828301@gmail.com Signed-off-by: Yang Shi <shy828301(a)gmail.com> Suggested-by: Naoya Horiguchi <naoya.horiguchi(a)nec.com> Acked-by: Naoya Horiguchi <naoya.horiguchi(a)nec.com> Cc: Hugh Dickins <hughd(a)google.com> Cc: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: Oscar Salvador <osalvador(a)suse.de> Cc: Peter Xu <peterx(a)redhat.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/memory-failure.c | 14 -------------- 1 file changed, 14 deletions(-) --- a/mm/memory-failure.c~mm-hwpoison-remove-the-unnecessary-thp-check +++ a/mm/memory-failure.c @@ -1147,20 +1147,6 @@ static int __get_hwpoison_page(struct pa if (!HWPoisonHandlable(head)) return -EBUSY; - if (PageTransHuge(head)) { - /* - * Non anonymous thp exists only in allocation/free time. We - * can't handle such a case correctly, so let's give it up. - * This should be better than triggering BUG_ON when kernel - * tries to touch the "partially handled" page. - */ - if (!PageAnon(head)) { - pr_err("Memory failure: %#lx: non anonymous thp\n", - page_to_pfn(page)); - return 0; - } - } - if (get_page_unless_zero(head)) { if (head == compound_head(page)) return 1; _

3 years, 2 months

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[PATCH 5.4 0/2] ipv4/ipv6: backport fixes for CVE-2021-20322

by Ovidiu Panait

The following commits are needed to fix CVE-2021-20322: ipv4: [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ipv6: [3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… [4] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… Commits [2] and [4] are already present in 5.4 stable, so backport the remaining two fixes with minor context adjustments. Eric Dumazet (2): ipv6: use siphash in rt6_exception_hash() ipv4: use siphash instead of Jenkins in fnhe_hashfun() net/ipv4/route.c | 12 ++++++------ net/ipv6/route.c | 20 ++++++++++++++------ 2 files changed, 20 insertions(+), 12 deletions(-) -- 2.25.1

3 years, 2 months

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Linux-stable-mirror October 2021