Hello!
On 09/03/22 12:40, Daniel Díaz wrote:
Hello!
On 09/03/22 09:59, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.9.306 release. There are 24 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Fri, 11 Mar 2022 15:58:48 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.306-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y and the diffstat can be found below.
thanks,
greg k-h
Regressions found.
The following Arm combinations fail to build:
- arm-gcc-8-bcm2835_defconfig
- arm-gcc-8-imx_v6_v7_defconfig
- arm-gcc-8-omap2plus_defconfig
- arm-gcc-9-bcm2835_defconfig
- arm-gcc-9-imx_v6_v7_defconfig
- arm-gcc-9-omap2plus_defconfig
- arm-gcc-10-bcm2835_defconfig
- arm-gcc-10-imx_v6_v7_defconfig
- arm-gcc-10-omap2plus_defconfig
- arm-gcc-11-bcm2835_defconfig
- arm-gcc-11-imx_v6_v7_defconfig
- arm-gcc-11-omap2plus_defconfig
Messages look like this:
/builds/linux/arch/arm/kernel/entry-common.S: Assembler messages: /builds/linux/arch/arm/kernel/entry-common.S:155: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/kernel/entry-common.S:164: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' make[2]: *** [/builds/linux/scripts/Makefile.build:407: arch/arm/kernel/entry-common.o] Error 1 /builds/linux/arch/arm/kernel/entry-armv.S: Assembler messages: /builds/linux/arch/arm/kernel/entry-armv.S:1124: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/kernel/entry-armv.S:1147: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/kernel/entry-armv.S:1170: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/kernel/entry-armv.S:1193: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/kernel/entry-armv.S:1232: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' make[2]: *** [/builds/linux/scripts/Makefile.build:407: arch/arm/kernel/entry-armv.o] Error 1 /builds/linux/arch/arm/mm/cache-v7.S: Assembler messages: /builds/linux/arch/arm/mm/cache-v7.S:63: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/mm/cache-v7.S:136: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/mm/cache-v7.S:170: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/mm/cache-v7.S:298: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' make[2]: *** [/builds/linux/scripts/Makefile.build:407: arch/arm/mm/cache-v7.o] Error 1 /builds/linux/arch/arm/mm/tlb-v7.S: Assembler messages: /builds/linux/arch/arm/mm/tlb-v7.S:88: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' make[2]: *** [/builds/linux/scripts/Makefile.build:407: arch/arm/mm/tlb-v7.o] Error 1 /builds/linux/arch/arm/mm/proc-v7-2level.S: Assembler messages: /builds/linux/arch/arm/mm/proc-v7-2level.S:58: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/mm/proc-v7-2level.S:60: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' /builds/linux/arch/arm/mm/proc-v7.S:61: Error: co-processor register expected -- `mcr p15,0,r0,c7,r5,4' make[2]: *** [/builds/linux/scripts/Makefile.build:407: arch/arm/mm/proc-v7.o] Error 1 make[2]: Target '__build' not remade because of errors.
Here's what the bisection throws for this one:
# bad: [2ef7c55895217efa8183111969710960a529d3cd] Linux 4.9.306-rc1 # good: [41b13534ea8aa554d4e987650e24da5510258752] ARM: use LOADADDR() to get load address of sections git bisect start '2ef7c55895217efa8183111969710960a529d3cd' '41b13534ea8aa554d4e987650e24da5510258752' # bad: [fd723e642aacb60567beda736ebb062db44b8349] ARM: include unprivileged BPF status in Spectre V2 reporting git bisect bad fd723e642aacb60567beda736ebb062db44b8349 # bad: [d0002ea56072220ddab72bb6e31a32350c01b44e] ARM: Spectre-BHB workaround git bisect bad d0002ea56072220ddab72bb6e31a32350c01b44e # first bad commit: [d0002ea56072220ddab72bb6e31a32350c01b44e] ARM: Spectre-BHB workaround commit d0002ea56072220ddab72bb6e31a32350c01b44e Author: Russell King (Oracle) rmk+kernel@armlinux.org.uk Date: Thu Feb 10 16:05:45 2022 +0000 ARM: Spectre-BHB workaround
comomit b9baf5c8c5c356757f4f9d8180b5e9d234065bc3 upstream.
Workaround the Spectre BHB issues for Cortex-A15, Cortex-A57, Cortex-A72, Cortex-A73 and Cortex-A75. We also include Brahma B15 as well to be safe, which is affected by Spectre V2 in the same ways as Cortex-A15.
Reviewed-by: Catalin Marinas catalin.marinas@arm.com Signed-off-by: Russell King (Oracle) rmk+kernel@armlinux.org.uk [changes due to lack of SYSTEM_FREEING_INITMEM - gregkh] Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org arch/arm/include/asm/assembler.h | 10 +++++ arch/arm/include/asm/spectre.h | 4 ++ arch/arm/kernel/entry-armv.S | 79 ++++++++++++++++++++++++++++++++++++--- arch/arm/kernel/entry-common.S | 24 ++++++++++++ arch/arm/kernel/spectre.c | 4 ++ arch/arm/kernel/traps.c | 38 +++++++++++++++++++ arch/arm/kernel/vmlinux-xip.lds.S | 18 +++++++-- arch/arm/kernel/vmlinux.lds.S | 18 +++++++-- arch/arm/mm/Kconfig | 10 +++++ arch/arm/mm/proc-v7-bugs.c | 76 +++++++++++++++++++++++++++++++++++++ 10 files changed, 269 insertions(+), 12 deletions(-)
Reverting made the build pass.
Greetings!
Daniel Díaz daniel.diaz@linaro.org