Buildresult: powerpc-next-rand/powerpc-randconfig/powerpc-gcc9 built on Mar 19 2020, 01:06
kisskb
Revisions
|
Branches
|
Compilers
|
Configs
|
Build Results
|
Build Failures
|
Status:
OK
Date/Time:
Mar 19 2020, 01:06
Duration:
0:07:58.950863
Builder:
ka1
Revision:
powerpc/64: Prevent stack protection in early boot (
b86f6789c355a86ff6c3a8d5ab24774fd66a5a51)
Target:
powerpc-next-rand/powerpc-randconfig/powerpc-gcc9
Branch:
powerpc-next-rand
Compiler:
powerpc-gcc9
(powerpc64-linux-gcc (GCC) 9.2.0 / GNU ld (GNU Binutils) 2.32)
Config:
randconfig
(
download
)
Log:
Download original
Possible warnings (10)
.config:5410:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD arch/powerpc/kernel/eeh.c:1773:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function] kernel/watchdog.c:47:23: warning: 'watchdog_allowed_mask' defined but not used [-Wunused-variable] drivers/macintosh/via-pmu.c:901:12: warning: 'pmu_battery_proc_show' defined but not used [-Wunused-function] drivers/macintosh/via-pmu.c:875:12: warning: 'pmu_irqstats_proc_show' defined but not used [-Wunused-function] drivers/macintosh/via-pmu.c:864:12: warning: 'pmu_info_proc_show' defined but not used [-Wunused-function] /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash' /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash' /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash' /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'
Full Log
# git rev-parse -q --verify b86f6789c355a86ff6c3a8d5ab24774fd66a5a51^{commit} b86f6789c355a86ff6c3a8d5ab24774fd66a5a51 already have revision, skipping fetch # git checkout -q -f -B kisskb b86f6789c355a86ff6c3a8d5ab24774fd66a5a51 # git clean -qxdf # < git log -1 # commit b86f6789c355a86ff6c3a8d5ab24774fd66a5a51 # Author: Michael Ellerman <mpe@ellerman.id.au> # Date: Mon Mar 16 23:44:21 2020 +1100 # # powerpc/64: Prevent stack protection in early boot # # The previous commit reduced the amount of code that is run before we # setup a paca. However there are still a few remaining functions that # run with no paca, or worse, with an arbitrary value in r13 that will # be used as a paca pointer. # # In particular the stack protector canary is stored in the paca, so if # stack protector is activated for any of these functions we will read # the stack canary from wherever r13 points. If r13 happens to point # outside of memory we will get a machine check / checkstop. # # For example if we modify initialise_paca() to trigger stack # protection, and then boot in the mambo simulator with r13 poisoned in # skiboot before calling the kernel: # # DEBUG: 19952232: (19952232): INSTRUCTION: PC=0xC0000000191FC1E8: [0x3C4C006D]: addis r2,r12,0x6D [fetch] # DEBUG: 19952236: (19952236): INSTRUCTION: PC=0xC00000001807EAD8: [0x7D8802A6]: mflr r12 [fetch] # FATAL ERROR: 19952276: (19952276): Check Stop for 0:0: Machine Check with ME bit of MSR off # DEBUG: 19952276: (19952276): INSTRUCTION: PC=0xC0000000191FCA7C: [0xE90D0CF8]: ld r8,0xCF8(r13) [Instruction Failed] # INFO: 19952276: (19952277): ** Execution stopped: Mambo Error, Machine Check Stop, ** # systemsim % bt # pc: 0xC0000000191FCA7C initialise_paca+0x54 # lr: 0xC0000000191FC22C early_setup+0x44 # stack:0x00000000198CBED0 0x0 +0x0 # stack:0x00000000198CBF00 0xC0000000191FC22C early_setup+0x44 # stack:0x00000000198CBF90 0x1801C968 +0x1801C968 # # So annotate the relevant functions to ensure stack protection is never # enabled for them. # # Fixes: 06ec27aea9fc ("powerpc/64: add stack protector support") # Cc: stable@vger.kernel.org # v4.20+ # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20200316124421.99211-2-mpe@ellerman.id.au # < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 b86f6789c355a86ff6c3a8d5ab24774fd66a5a51 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- randconfig KCONFIG_SEED=0x6F1764DE # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n # Added to kconfig CONFIG_UBSAN=n # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig .config:5410:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/kernel/eeh.c:1773:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function] 1773 | static int proc_eeh_show(struct seq_file *m, void *v) | ^~~~~~~~~~~~~ /kisskb/src/kernel/watchdog.c:47:23: warning: 'watchdog_allowed_mask' defined but not used [-Wunused-variable] 47 | static struct cpumask watchdog_allowed_mask __read_mostly; | ^~~~~~~~~~~~~~~~~~~~~ /kisskb/src/drivers/macintosh/via-pmu.c:901:12: warning: 'pmu_battery_proc_show' defined but not used [-Wunused-function] 901 | static int pmu_battery_proc_show(struct seq_file *m, void *v) | ^~~~~~~~~~~~~~~~~~~~~ /kisskb/src/drivers/macintosh/via-pmu.c:875:12: warning: 'pmu_irqstats_proc_show' defined but not used [-Wunused-function] 875 | static int pmu_irqstats_proc_show(struct seq_file *m, void *v) | ^~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/drivers/macintosh/via-pmu.c:864:12: warning: 'pmu_info_proc_show' defined but not used [-Wunused-function] 864 | static int pmu_info_proc_show(struct seq_file *m, void *v) | ^~~~~~~~~~~~~~~~~~ /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash' /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash' /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash' /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash' Completed OK # rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc9 # Build took: 0:07:58.950863
© Michael Ellerman 2006-2018.