January 2019 - Linux-stable-mirror

PASS: Test report for kernel 4.20.1-rc1.skt+ (linux-stable-rc)

by CKI

Hello, We ran automated tests on a recent commit from this kernel tree: Kernel repo: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Commit: 6fb31b79ec72 Linux 4.20.1-rc1 The results of these automated tests are provided below. Overall result: PASSED Patch merge: OK Compile: OK Kernel tests: OK Please reply to this email if you have any questions about the tests that we ran or if you have any suggestions on how to make future tests more effective. ,-. ,-. ( C ) ( K ) Continuous `-',-.`-' Kernel ( I ) Integration `-' ______________________________________________________________________________ Compile testing --------------- We compiled the kernel for 4 architectures: s390x: make options: make INSTALL_MOD_STRIP=1 -j64 targz-pkg -j64 configuration: https://artifacts.cki-project.org/builds/s390x/6fb31b79ec7223a8e7a39d4b9013… powerpc64le: make options: make INSTALL_MOD_STRIP=1 -j64 targz-pkg -j64 configuration: https://artifacts.cki-project.org/builds/ppc64le/6fb31b79ec7223a8e7a39d4b90… aarch64: make options: make INSTALL_MOD_STRIP=1 -j64 targz-pkg -j64 configuration: https://artifacts.cki-project.org/builds/aarch64/6fb31b79ec7223a8e7a39d4b90… x86_64: make options: make INSTALL_MOD_STRIP=1 -j64 targz-pkg -j64 configuration: https://artifacts.cki-project.org/builds/x86_64/6fb31b79ec7223a8e7a39d4b901… Hardware testing ---------------- We booted each kernel and ran the following tests: s390: Boot test - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… /distribution/command LTP lite - release 20180926 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… NFS Connectathon - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#filesystems/… Memory function: memfd_create - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/memory/func… Networking route: pmtu - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/networking/… AMTU (Abstract Machine Test Utility) - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#misc/amtu powerpc: Boot test - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… /distribution/command LTP lite - release 20180926 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… NFS Connectathon - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#filesystems/… xfstests: ext4 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/filesystems… xfstests: xfs - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/filesystems… Memory function: memfd_create - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/memory/func… Networking route: pmtu - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/networking/… AMTU (Abstract Machine Test Utility) - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#misc/amtu Usex - version 1.9-29 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#standards/us… arm64: Boot test - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… /distribution/command LTP lite - release 20180926 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… NFS Connectathon - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#filesystems/… xfstests: ext4 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/filesystems… xfstests: xfs - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/filesystems… Memory function: memfd_create - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/memory/func… Networking route: pmtu - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/networking/… AMTU (Abstract Machine Test Utility) - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#misc/amtu Usex - version 1.9-29 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#standards/us… x86_64: Boot test - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… /distribution/command LTP lite - release 20180926 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#distribution… NFS Connectathon - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#filesystems/… xfstests: ext4 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/filesystems… xfstests: xfs - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/filesystems… Memory function: memfd_create - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/memory/func… Networking route: pmtu - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#/networking/… AMTU (Abstract Machine Test Utility) - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#misc/amtu Usex - version 1.9-29 - URL: https://github.com/CKI-project/tests-beaker/archive/master.zip#standards/us…

5 years, 11 months

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FAILED: patch "[PATCH] KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1b3ab5ad1b8ad99bae76ec583809c5f5a31c707c Mon Sep 17 00:00:00 2001 From: Sean Christopherson <sean.j.christopherson(a)intel.com> Date: Mon, 3 Dec 2018 13:52:51 -0800 Subject: [PATCH] KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if alloc_kvm_area() fails Fixes: 34a1cd60d17f ("kvm: x86: vmx: move some vmx setting from vmx_init() to hardware_setup()") Cc: stable(a)vger.kernel.org Signed-off-by: Sean Christopherson <sean.j.christopherson(a)intel.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index c379d0bfdcba..3ec47b7a94d6 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8037,13 +8037,16 @@ static __init int hardware_setup(void) kvm_mce_cap_supported |= MCG_LMCE_P; - return alloc_kvm_area(); + r = alloc_kvm_area(); + if (r) + goto out; + return 0; out: for (i = 0; i < VMX_BITMAP_NR; i++) free_page((unsigned long)vmx_bitmap[i]); - return r; + return r; } static __exit void hardware_unsetup(void)

5 years, 11 months

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FAILED: patch "[PATCH] KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if" failed to apply to 4.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1b3ab5ad1b8ad99bae76ec583809c5f5a31c707c Mon Sep 17 00:00:00 2001 From: Sean Christopherson <sean.j.christopherson(a)intel.com> Date: Mon, 3 Dec 2018 13:52:51 -0800 Subject: [PATCH] KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if alloc_kvm_area() fails Fixes: 34a1cd60d17f ("kvm: x86: vmx: move some vmx setting from vmx_init() to hardware_setup()") Cc: stable(a)vger.kernel.org Signed-off-by: Sean Christopherson <sean.j.christopherson(a)intel.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index c379d0bfdcba..3ec47b7a94d6 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8037,13 +8037,16 @@ static __init int hardware_setup(void) kvm_mce_cap_supported |= MCG_LMCE_P; - return alloc_kvm_area(); + r = alloc_kvm_area(); + if (r) + goto out; + return 0; out: for (i = 0; i < VMX_BITMAP_NR; i++) free_page((unsigned long)vmx_bitmap[i]); - return r; + return r; } static __exit void hardware_unsetup(void)

5 years, 11 months

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FAILED: patch "[PATCH] KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 1b3ab5ad1b8ad99bae76ec583809c5f5a31c707c Mon Sep 17 00:00:00 2001 From: Sean Christopherson <sean.j.christopherson(a)intel.com> Date: Mon, 3 Dec 2018 13:52:51 -0800 Subject: [PATCH] KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if alloc_kvm_area() fails Fixes: 34a1cd60d17f ("kvm: x86: vmx: move some vmx setting from vmx_init() to hardware_setup()") Cc: stable(a)vger.kernel.org Signed-off-by: Sean Christopherson <sean.j.christopherson(a)intel.com> Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index c379d0bfdcba..3ec47b7a94d6 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8037,13 +8037,16 @@ static __init int hardware_setup(void) kvm_mce_cap_supported |= MCG_LMCE_P; - return alloc_kvm_area(); + r = alloc_kvm_area(); + if (r) + goto out; + return 0; out: for (i = 0; i < VMX_BITMAP_NR; i++) free_page((unsigned long)vmx_bitmap[i]); - return r; + return r; } static __exit void hardware_unsetup(void)

5 years, 11 months

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stable-rc/linux-4.14.y build: 197 builds: 0 failed, 197 passed, 40 warnings (v4.14.91-54-g8897fa4778d0)

by kernelci.org bot

stable-rc/linux-4.14.y build: 197 builds: 0 failed, 197 passed, 40 warnings (v4.14.91-54-g8897fa4778d0) Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-4.14.y/kernel/v4.14.91-54… Tree: stable-rc Branch: linux-4.14.y Git Describe: v4.14.91-54-g8897fa4778d0 Git Commit: 8897fa4778d0272ac62bfe23e0aad9f540661dcb Git URL: http://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 6 unique architectures Warnings Detected: arc: arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2017.09) 7.1.1 20170710 allnoconfig: 1 warning axs103_defconfig: 4 warnings axs103_smp_defconfig: 4 warnings haps_hs_defconfig: 2 warnings haps_hs_smp_defconfig: 2 warnings hsdk_defconfig: 4 warnings nsim_hs_smp_defconfig: 2 warnings nsimosci_hs_defconfig: 4 warnings nsimosci_hs_smp_defconfig: 4 warnings tinyconfig: 1 warning vdk_hs38_defconfig: 5 warnings vdk_hs38_smp_defconfig: 5 warnings mips: mips-linux-gcc (GCC) 6.3.0 decstation_defconfig: 1 warning x86_64: gcc (Debian 7.4.0-2) 7.4.0 tinyconfig: 1 warning Warnings summary: 14 arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] 12 include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast 10 net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] 2 arch/arc/kernel/unwind.c:188:14: warning: 'unw_hdr_alloc' defined but not used [-Wunused-function] 1 drivers/net/ethernet/amd/declance.c:1230:2: warning: 'desc' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 .config:1023:warning: override: UNWINDER_GUESS changes choice state ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- acs5k_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- acs5k_tiny_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (i386) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm64) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (x86_64) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arc) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast -------------------------------------------------------------------------------- am200epdkit_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ar7_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g4_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g5_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- assabet_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- at91_dt_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath25_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath79_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axm55xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_defconfig (arc) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- axs103_smp_defconfig (arc) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- badge4_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm2835_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm47xx_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm63xx_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bigsur_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_be_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_stb_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- capcella_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cavium_octeon_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cerfcube_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ci20_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- clps711x_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x2xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x300_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cns3420vb_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cobalt_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa270_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa300_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- collie_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- corgi_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- davinci_all_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- db1xxx_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_defconfig (mips) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/net/ethernet/amd/declance.c:1230:2: warning: 'desc' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- defconfig (arm64) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- dove_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- e55_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ebsa110_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- efm32_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- em_x270_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ep93xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- eseries_pxa_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- exynos_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ezx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- footbridge_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- fuloong2e_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gemini_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gpr_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h3600_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h5000_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hackkit_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_defconfig (arc) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- hisi_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hsdk_defconfig (arc) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] -------------------------------------------------------------------------------- imote2_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v4_v5_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- integrator_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop13xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop32x_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop33x_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip22_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip27_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip28_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip32_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ixp4xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jazz_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jmr3927_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jornada720_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- keystone_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ks8695_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lart_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lasat_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lemote2f_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1b_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1c_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson3_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc18xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc32xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpd270_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lubbock_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- magician_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mainstone_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_guest_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_qemu_32r6_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaaprp_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_eva_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_xpa_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- markeins_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mini2440_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mips_paravirt_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mmp2_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- moxart_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mpc30x_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mps2_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- msp71xx_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mtx1_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v4t_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v5_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mv78xx0_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v5_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v7_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mxs_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- neponset_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- netwinder_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- netx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nhk8815_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlp_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlr_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_smp_defconfig (arc) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- nsimosci_hs_defconfig (arc) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- nsimosci_hs_smp_defconfig (arc) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] -------------------------------------------------------------------------------- nuc910_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc950_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc960_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap1_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omega2p_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- orion5x_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- palmz72_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pcm027_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pic32mzda_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pistachio_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pleb_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pnx8335_stb225_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- prima2_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa168_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa255-idp_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa3xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa910_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qcom_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qi_lb60_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- raumfeld_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rb532_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rbtx49xx_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- realview_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rm200_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rpc_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rt305x_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c2410_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c6400_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s5pv210_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sama5_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sb1250_swarm_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shannon_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shmobile_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- simpad_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- socfpga_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear13xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear3xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear6xx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spitz_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- stm32_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sunxi_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tango4_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0219_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0226_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0287_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tct_hammer_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tegra_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: .config:1023:warning: override: UNWINDER_GUESS changes choice state -------------------------------------------------------------------------------- tinyconfig (arm64) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arc) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast -------------------------------------------------------------------------------- trizeps4_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u300_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u8500_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_defconfig (arc) — PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: arch/arc/kernel/unwind.c:188:14: warning: 'unw_hdr_alloc' defined but not used [-Wunused-function] include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] -------------------------------------------------------------------------------- vdk_hs38_smp_defconfig (arc) — PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: arch/arc/kernel/unwind.c:188:14: warning: 'unw_hdr_alloc' defined but not used [-Wunused-function] include/linux/kernel.h:791:16: warning: comparison of distinct pointer types lacks a cast arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] net/ipv4/tcp_input.c:4275:49: warning: array subscript is above array bounds [-Warray-bounds] arch/arc/include/asm/cmpxchg.h:95:29: warning: value computed is not used [-Wunused-value] -------------------------------------------------------------------------------- versatile_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vexpress_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- viper_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vocore2_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vt8500_v6_v7_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- workpad_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xcep_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xilfpga_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xway_defconfig (mips) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zeus_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zx_defconfig (arm) — PASS, 0 errors, 0 warnings, 0 section mismatches --- For more info write to <info(a)kernelci.org>

5 years, 11 months

1
0
0 0

FAILED: patch "[PATCH] KVM: PPC: Book3S HV: Fix race between kvm_unmap_hva_range and" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 234ff0b729ad882d20f7996591a964965647addf Mon Sep 17 00:00:00 2001 From: Paul Mackerras <paulus(a)ozlabs.org> Date: Fri, 16 Nov 2018 21:28:18 +1100 Subject: [PATCH] KVM: PPC: Book3S HV: Fix race between kvm_unmap_hva_range and MMU mode switch Testing has revealed an occasional crash which appears to be caused by a race between kvmppc_switch_mmu_to_hpt and kvm_unmap_hva_range_hv. The symptom is a NULL pointer dereference in __find_linux_pte() called from kvm_unmap_radix() with kvm->arch.pgtable == NULL. Looking at kvmppc_switch_mmu_to_hpt(), it does indeed clear kvm->arch.pgtable (via kvmppc_free_radix()) before setting kvm->arch.radix to NULL, and there is nothing to prevent kvm_unmap_hva_range_hv() or the other MMU callback functions from being called concurrently with kvmppc_switch_mmu_to_hpt() or kvmppc_switch_mmu_to_radix(). This patch therefore adds calls to spin_lock/unlock on the kvm->mmu_lock around the assignments to kvm->arch.radix, and makes sure that the partition-scoped radix tree or HPT is only freed after changing kvm->arch.radix. This also takes the kvm->mmu_lock in kvmppc_rmap_reset() to make sure that the clearing of each rmap array (one per memslot) doesn't happen concurrently with use of the array in the kvm_unmap_hva_range_hv() or the other MMU callbacks. Fixes: 18c3640cefc7 ("KVM: PPC: Book3S HV: Add infrastructure for running HPT guests on radix host") Cc: stable(a)vger.kernel.org # v4.15+ Signed-off-by: Paul Mackerras <paulus(a)ozlabs.org> diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index c615617e78ac..a18afda3d0f0 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -743,12 +743,15 @@ void kvmppc_rmap_reset(struct kvm *kvm) srcu_idx = srcu_read_lock(&kvm->srcu); slots = kvm_memslots(kvm); kvm_for_each_memslot(memslot, slots) { + /* Mutual exclusion with kvm_unmap_hva_range etc. */ + spin_lock(&kvm->mmu_lock); /* * This assumes it is acceptable to lose reference and * change bits across a reset. */ memset(memslot->arch.rmap, 0, memslot->npages * sizeof(*memslot->arch.rmap)); + spin_unlock(&kvm->mmu_lock); } srcu_read_unlock(&kvm->srcu, srcu_idx); } diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index a56f8413758a..ab43306c4ea1 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -4532,12 +4532,15 @@ int kvmppc_switch_mmu_to_hpt(struct kvm *kvm) { if (nesting_enabled(kvm)) kvmhv_release_all_nested(kvm); + kvmppc_rmap_reset(kvm); + kvm->arch.process_table = 0; + /* Mutual exclusion with kvm_unmap_hva_range etc. */ + spin_lock(&kvm->mmu_lock); + kvm->arch.radix = 0; + spin_unlock(&kvm->mmu_lock); kvmppc_free_radix(kvm); kvmppc_update_lpcr(kvm, LPCR_VPM1, LPCR_VPM1 | LPCR_UPRT | LPCR_GTSE | LPCR_HR); - kvmppc_rmap_reset(kvm); - kvm->arch.radix = 0; - kvm->arch.process_table = 0; return 0; } @@ -4549,12 +4552,14 @@ int kvmppc_switch_mmu_to_radix(struct kvm *kvm) err = kvmppc_init_vm_radix(kvm); if (err) return err; - + kvmppc_rmap_reset(kvm); + /* Mutual exclusion with kvm_unmap_hva_range etc. */ + spin_lock(&kvm->mmu_lock); + kvm->arch.radix = 1; + spin_unlock(&kvm->mmu_lock); kvmppc_free_hpt(&kvm->arch.hpt); kvmppc_update_lpcr(kvm, LPCR_UPRT | LPCR_GTSE | LPCR_HR, LPCR_VPM1 | LPCR_UPRT | LPCR_GTSE | LPCR_HR); - kvmppc_rmap_reset(kvm); - kvm->arch.radix = 1; return 0; }

5 years, 11 months

1
0
0 0

FAILED: patch "[PATCH] x86/speculation/l1tf: Drop the swap storage limit restriction" failed to apply to 4.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 5b5e4d623ec8a34689df98e42d038a3b594d2ff9 Mon Sep 17 00:00:00 2001 From: Michal Hocko <mhocko(a)suse.com> Date: Tue, 13 Nov 2018 19:49:10 +0100 Subject: [PATCH] x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off Swap storage is restricted to max_swapfile_size (~16TB on x86_64) whenever the system is deemed affected by L1TF vulnerability. Even though the limit is quite high for most deployments it seems to be too restrictive for deployments which are willing to live with the mitigation disabled. We have a customer to deploy 8x 6,4TB PCIe/NVMe SSD swap devices which is clearly out of the limit. Drop the swap restriction when l1tf=off is specified. It also doesn't make much sense to warn about too much memory for the l1tf mitigation when it is forcefully disabled by the administrator. [ tglx: Folded the documentation delta change ] Fixes: 377eeaa8e11f ("x86/speculation/l1tf: Limit swap file size to MAX_PA/2") Signed-off-by: Michal Hocko <mhocko(a)suse.com> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Reviewed-by: Pavel Tatashin <pasha.tatashin(a)soleen.com> Reviewed-by: Andi Kleen <ak(a)linux.intel.com> Acked-by: Jiri Kosina <jkosina(a)suse.cz> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: Andi Kleen <ak(a)linux.intel.com> Cc: Borislav Petkov <bp(a)suse.de> Cc: <linux-mm(a)kvack.org> Cc: stable(a)vger.kernel.org Link: https://lkml.kernel.org/r/20181113184910.26697-1-mhocko@kernel.org diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05a252e5178d..835e422572eb 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2095,6 +2095,9 @@ off Disables hypervisor mitigations and doesn't emit any warnings. + It also drops the swap size and available + RAM limit restriction on both hypervisor and + bare metal. Default is 'flush'. diff --git a/Documentation/admin-guide/l1tf.rst b/Documentation/admin-guide/l1tf.rst index b85dd80510b0..9af977384168 100644 --- a/Documentation/admin-guide/l1tf.rst +++ b/Documentation/admin-guide/l1tf.rst @@ -405,6 +405,9 @@ time with the option "l1tf=". The valid arguments for this option are: off Disables hypervisor mitigations and doesn't emit any warnings. + It also drops the swap size and available RAM limit restrictions + on both hypervisor and bare metal. + ============ ============================================================= The default is 'flush'. For details about L1D flushing see :ref:`l1d_flush`. @@ -576,7 +579,8 @@ Default mitigations The kernel default mitigations for vulnerable processors are: - PTE inversion to protect against malicious user space. This is done - unconditionally and cannot be controlled. + unconditionally and cannot be controlled. The swap storage is limited + to ~16TB. - L1D conditional flushing on VMENTER when EPT is enabled for a guest. diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index a68b32cb845a..58689ac64440 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -1002,7 +1002,8 @@ static void __init l1tf_select_mitigation(void) #endif half_pa = (u64)l1tf_pfn_limit() << PAGE_SHIFT; - if (e820__mapped_any(half_pa, ULLONG_MAX - half_pa, E820_TYPE_RAM)) { + if (l1tf_mitigation != L1TF_MITIGATION_OFF && + e820__mapped_any(half_pa, ULLONG_MAX - half_pa, E820_TYPE_RAM)) { pr_warn("System has more than MAX_PA/2 memory. L1TF mitigation not effective.\n"); pr_info("You may make it effective by booting the kernel with mem=%llu parameter.\n", half_pa); diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index ef99f3892e1f..427a955a2cf2 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -931,7 +931,7 @@ unsigned long max_swapfile_size(void) pages = generic_max_swapfile_size(); - if (boot_cpu_has_bug(X86_BUG_L1TF)) { + if (boot_cpu_has_bug(X86_BUG_L1TF) && l1tf_mitigation != L1TF_MITIGATION_OFF) { /* Limit the swap file size to MAX_PA/2 for L1TF workaround */ unsigned long long l1tf_limit = l1tf_pfn_limit(); /*

5 years, 11 months

1
0
0 0

FAILED: patch "[PATCH] x86/speculation/l1tf: Drop the swap storage limit restriction" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 5b5e4d623ec8a34689df98e42d038a3b594d2ff9 Mon Sep 17 00:00:00 2001 From: Michal Hocko <mhocko(a)suse.com> Date: Tue, 13 Nov 2018 19:49:10 +0100 Subject: [PATCH] x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off Swap storage is restricted to max_swapfile_size (~16TB on x86_64) whenever the system is deemed affected by L1TF vulnerability. Even though the limit is quite high for most deployments it seems to be too restrictive for deployments which are willing to live with the mitigation disabled. We have a customer to deploy 8x 6,4TB PCIe/NVMe SSD swap devices which is clearly out of the limit. Drop the swap restriction when l1tf=off is specified. It also doesn't make much sense to warn about too much memory for the l1tf mitigation when it is forcefully disabled by the administrator. [ tglx: Folded the documentation delta change ] Fixes: 377eeaa8e11f ("x86/speculation/l1tf: Limit swap file size to MAX_PA/2") Signed-off-by: Michal Hocko <mhocko(a)suse.com> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Reviewed-by: Pavel Tatashin <pasha.tatashin(a)soleen.com> Reviewed-by: Andi Kleen <ak(a)linux.intel.com> Acked-by: Jiri Kosina <jkosina(a)suse.cz> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: Andi Kleen <ak(a)linux.intel.com> Cc: Borislav Petkov <bp(a)suse.de> Cc: <linux-mm(a)kvack.org> Cc: stable(a)vger.kernel.org Link: https://lkml.kernel.org/r/20181113184910.26697-1-mhocko@kernel.org diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05a252e5178d..835e422572eb 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2095,6 +2095,9 @@ off Disables hypervisor mitigations and doesn't emit any warnings. + It also drops the swap size and available + RAM limit restriction on both hypervisor and + bare metal. Default is 'flush'. diff --git a/Documentation/admin-guide/l1tf.rst b/Documentation/admin-guide/l1tf.rst index b85dd80510b0..9af977384168 100644 --- a/Documentation/admin-guide/l1tf.rst +++ b/Documentation/admin-guide/l1tf.rst @@ -405,6 +405,9 @@ time with the option "l1tf=". The valid arguments for this option are: off Disables hypervisor mitigations and doesn't emit any warnings. + It also drops the swap size and available RAM limit restrictions + on both hypervisor and bare metal. + ============ ============================================================= The default is 'flush'. For details about L1D flushing see :ref:`l1d_flush`. @@ -576,7 +579,8 @@ Default mitigations The kernel default mitigations for vulnerable processors are: - PTE inversion to protect against malicious user space. This is done - unconditionally and cannot be controlled. + unconditionally and cannot be controlled. The swap storage is limited + to ~16TB. - L1D conditional flushing on VMENTER when EPT is enabled for a guest. diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index a68b32cb845a..58689ac64440 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -1002,7 +1002,8 @@ static void __init l1tf_select_mitigation(void) #endif half_pa = (u64)l1tf_pfn_limit() << PAGE_SHIFT; - if (e820__mapped_any(half_pa, ULLONG_MAX - half_pa, E820_TYPE_RAM)) { + if (l1tf_mitigation != L1TF_MITIGATION_OFF && + e820__mapped_any(half_pa, ULLONG_MAX - half_pa, E820_TYPE_RAM)) { pr_warn("System has more than MAX_PA/2 memory. L1TF mitigation not effective.\n"); pr_info("You may make it effective by booting the kernel with mem=%llu parameter.\n", half_pa); diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index ef99f3892e1f..427a955a2cf2 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -931,7 +931,7 @@ unsigned long max_swapfile_size(void) pages = generic_max_swapfile_size(); - if (boot_cpu_has_bug(X86_BUG_L1TF)) { + if (boot_cpu_has_bug(X86_BUG_L1TF) && l1tf_mitigation != L1TF_MITIGATION_OFF) { /* Limit the swap file size to MAX_PA/2 for L1TF workaround */ unsigned long long l1tf_limit = l1tf_pfn_limit(); /*

5 years, 11 months

1
0
0 0

stable-rc/linux-4.19.y boot: 114 boots: 0 failed, 113 passed with 1 offline (v4.19.13-84-gbeff7a6981da)

by kernelci.org bot

stable-rc/linux-4.19.y boot: 114 boots: 0 failed, 113 passed with 1 offline (v4.19.13-84-gbeff7a6981da) Full Boot Summary: https://kernelci.org/boot/all/job/stable-rc/branch/linux-4.19.y/kernel/v4.1… Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-4.19.y/kernel/v4.19.13-84… Tree: stable-rc Branch: linux-4.19.y Git Describe: v4.19.13-84-gbeff7a6981da Git Commit: beff7a6981dadb743844bc69d47375c69e4132e3 Git URL: http://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Tested: 62 unique boards, 22 SoC families, 12 builds out of 202 Offline Platforms: arm64: defconfig: meson-gxbb-odroidc2: 1 offline lab --- For more info write to <info(a)kernelci.org>

5 years, 11 months

1
0
0 0

stable-rc/linux-3.18.y boot: 51 boots: 1 failed, 50 passed (v3.18.131-22-gc337d60c44dd)

by kernelci.org bot

stable-rc/linux-3.18.y boot: 51 boots: 1 failed, 50 passed (v3.18.131-22-gc337d60c44dd) Full Boot Summary: https://kernelci.org/boot/all/job/stable-rc/branch/linux-3.18.y/kernel/v3.1… Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-3.18.y/kernel/v3.18.131-2… Tree: stable-rc Branch: linux-3.18.y Git Describe: v3.18.131-22-gc337d60c44dd Git Commit: c337d60c44ddb6dd20254cfe249edd48683a3f2e Git URL: http://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Tested: 22 unique boards, 11 SoC families, 11 builds out of 185 Boot Failure Detected: arm: exynos_defconfig exynos4412-odroidx2: 1 failed lab --- For more info write to <info(a)kernelci.org>

5 years, 11 months

1
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0 0

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Linux-stable-mirror January 2019