Buildresult: powerpc-fixes/corenet64_smp_defconfig+KVM/powerpc-gcc5 built on Sep 16 2023, 22:15

kisskb

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Status:	OK
Date/Time:	Sep 16 2023, 22:15
Duration:	0:01:32.220893
Builder:	ka4
Revision:	powerpc/dexcr: Move HASHCHK trap handler (`1174ea047a350ba2e1294131aa14046675ab45fd)`
Target:	powerpc-fixes/corenet64_smp_defconfig+KVM/powerpc-gcc5
Branch:	powerpc-fixes
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	corenet64_smp_defconfig+KVM (download)
Log:	Download original Possible warnings (1) .config:4563:warning: override: reassigning to symbol VIRTUALIZATION Full Log # git rev-parse -q --verify 1174ea047a350ba2e1294131aa14046675ab45fd^{commit} 1174ea047a350ba2e1294131aa14046675ab45fd already have revision, skipping fetch # git checkout -q -f -B kisskb 1174ea047a350ba2e1294131aa14046675ab45fd # git clean -qxdf # < git log -1 # commit 1174ea047a350ba2e1294131aa14046675ab45fd # Author: Benjamin Gray <bgray@linux.ibm.com> # Date: Fri Sep 15 13:46:04 2023 +1000 # # powerpc/dexcr: Move HASHCHK trap handler # # Syzkaller reported a sleep in atomic context bug relating to the HASHCHK # handler logic: # # BUG: sleeping function called from invalid context at arch/powerpc/kernel/traps.c:1518 # in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 25040, name: syz-executor # preempt_count: 0, expected: 0 # RCU nest depth: 0, expected: 0 # no locks held by syz-executor/25040. # irq event stamp: 34 # hardirqs last enabled at (33): [<c000000000048b38>] prep_irq_for_enabled_exit arch/powerpc/kernel/interrupt.c:56 [inline] # hardirqs last enabled at (33): [<c000000000048b38>] interrupt_exit_user_prepare_main+0x148/0x600 arch/powerpc/kernel/interrupt.c:230 # hardirqs last disabled at (34): [<c00000000003e6a4>] interrupt_enter_prepare+0x144/0x4f0 arch/powerpc/include/asm/interrupt.h:176 # softirqs last enabled at (0): [<c000000000281954>] copy_process+0x16e4/0x4750 kernel/fork.c:2436 # softirqs last disabled at (0): [<0000000000000000>] 0x0 # CPU: 15 PID: 25040 Comm: syz-executor Not tainted 6.5.0-rc5-00001-g3ccdff6bb06d #3 # Hardware name: IBM,9105-22A POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1040.00 (NL1040_021) hv:phyp pSeries # Call Trace: # [c0000000a8247ce0] [c00000000032b0e4] __might_resched+0x3b4/0x400 kernel/sched/core.c:10189 # [c0000000a8247d80] [c0000000008c7dc8] __might_fault+0xa8/0x170 mm/memory.c:5853 # [c0000000a8247dc0] [c00000000004160c] do_program_check+0x32c/0xb20 arch/powerpc/kernel/traps.c:1518 # [c0000000a8247e50] [c000000000009b2c] program_check_common_virt+0x3bc/0x3c0 # # To determine if a trap was caused by a HASHCHK instruction, we inspect # the user instruction that triggered the trap. However this may sleep # if the page needs to be faulted in (get_user_instr() reaches # __get_user(), which calls might_fault() and triggers the bug message). # # Move the HASHCHK handler logic to after we allow IRQs, which is fine # because we are only interested in HASHCHK if it's a user space trap. # # Fixes: 5bcba4e6c13f ("powerpc/dexcr: Handle hashchk exception") # Signed-off-by: Benjamin Gray <bgray@linux.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://msgid.link/20230915034604.45393-1-bgray@linux.ibm.com # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 1174ea047a350ba2e1294131aa14046675ab45fd # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- corenet64_smp_defconfig Using /kisskb/src/arch/powerpc/configs/corenet_base.config as base Merging /kisskb/src/arch/powerpc/configs/85xx-64bit.config Merging /kisskb/src/arch/powerpc/configs/85xx-smp.config Merging /kisskb/src/arch/powerpc/configs/altivec.config Merging /kisskb/src/arch/powerpc/configs/85xx-hw.config Merging /kisskb/src/arch/powerpc/configs/fsl-emb-nonhw.config Merging /kisskb/src/arch/powerpc/configs/dpaa.config # # merged configuration written to .config (needs make) # # Added to kconfig CONFIG_KVM_E500MC=y # Added to kconfig CONFIG_VIRTUALIZATION=y # Added to kconfig CONFIG_KVM_MPIC=y # < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig .config:4563:warning: override: reassigning to symbol VIRTUALIZATION # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_corenet64_smp_defconfig+KVM_powerpc-gcc5 # Build took: 0:01:32.220893

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