Buildresult: powerpc-next/mmu_defconfig/microblaze-gcc5 built on Dec 18 2022, 01:03

kisskb

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Status:	OK
Date/Time:	Dec 18 2022, 01:03
Duration:	0:00:44.947504
Builder:	ka7
Revision:	powerpc/code-patching: Fix oops with DEBUG_VM enabled (`1562551aec8bb15974c69ee79b8da8cc688e7340)`
Target:	powerpc-next/mmu_defconfig/microblaze-gcc5
Branch:	powerpc-next
Compiler:	microblaze-gcc5 (microblazeel-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.26.1)
Config:	mmu_defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 1562551aec8bb15974c69ee79b8da8cc688e7340^{commit} 1562551aec8bb15974c69ee79b8da8cc688e7340 already have revision, skipping fetch # git checkout -q -f -B kisskb 1562551aec8bb15974c69ee79b8da8cc688e7340 # git clean -qxdf # < git log -1 # commit 1562551aec8bb15974c69ee79b8da8cc688e7340 # Author: Michael Ellerman <mpe@ellerman.id.au> # Date: Fri Dec 16 12:43:12 2022 +1100 # # powerpc/code-patching: Fix oops with DEBUG_VM enabled # # Nathan reported that the new per-cpu mm patching oopses if DEBUG_VM is # enabled: # # ------------[ cut here ]------------ # kernel BUG at arch/powerpc/mm/pgtable.c:333! # Oops: Exception in kernel mode, sig: 5 [#1] # LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV # Modules linked in: # CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.0-rc2+ #1 # Hardware name: IBM PowerNV (emulated by qemu) POWER9 0x4e1200 opal:v7.0 PowerNV # ... # NIP assert_pte_locked+0x180/0x1a0 # LR assert_pte_locked+0x170/0x1a0 # Call Trace: # 0x60000000 (unreliable) # patch_instruction+0x618/0x6d0 # arch_prepare_kprobe+0xfc/0x2d0 # register_kprobe+0x520/0x7c0 # arch_init_kprobes+0x28/0x3c # init_kprobes+0x108/0x184 # do_one_initcall+0x60/0x2e0 # kernel_init_freeable+0x1f0/0x3e0 # kernel_init+0x34/0x1d0 # ret_from_kernel_thread+0x5c/0x64 # # Caused by the assert_spin_locked() failing in assert_pte_locked(). The # assert fails because we have unlocked the PTE in text_area_cpu_up_mm(). # # Instead leave the PTE locked and only unlock it when we tear down the # patching_mm for the CPU. That avoids the assert failing, and nothing # else should be using the PTE so leaving it locked is arguably more # correct. # # Fixes: c28c15b6d28a ("powerpc/code-patching: Use temporary mm for Radix MMU") # Reported-by: Nathan Chancellor <nathan@kernel.org> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-gcc --version # < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-ld --version # < git log --format=%s --max-count=1 1562551aec8bb15974c69ee79b8da8cc688e7340 # < make -s -j 32 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze-gcc5 CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux- mmu_defconfig # < make -s -j 32 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze-gcc5 CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux- help # make -s -j 32 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze-gcc5 CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux- olddefconfig # make -s -j 32 ARCH=microblaze O=/kisskb/build/powerpc-next_mmu_defconfig_microblaze-gcc5 CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux- Kernel: arch/microblaze/boot/linux.bin is ready (#1) Completed OK # rm -rf /kisskb/build/powerpc-next_mmu_defconfig_microblaze-gcc5 # Build took: 0:00:44.947504

© Michael Ellerman 2006-2018.