# git rev-parse -q --verify 8251677ee8cdf2e8796f4271a5b443448a232247^{commit} 8251677ee8cdf2e8796f4271a5b443448a232247 already have revision, skipping fetch # git checkout -q -f -B kisskb 8251677ee8cdf2e8796f4271a5b443448a232247 # git clean -qxdf # < git log -1 # commit 8251677ee8cdf2e8796f4271a5b443448a232247 # Author: Christophe Leroy # Date: Wed Aug 21 10:20:11 2019 +0000 # # powerpc/mm: Fix an Oops in kasan_mmu_init() # # Uncompressing Kernel Image ... OK # Loading Device Tree to 01ff7000, end 01fff74f ... OK # [ 0.000000] printk: bootconsole [udbg0] enabled # [ 0.000000] BUG: Unable to handle kernel data access at 0xf818c000 # [ 0.000000] Faulting instruction address: 0xc0013c7c # [ 0.000000] Thread overran stack, or stack corrupted # [ 0.000000] Oops: Kernel access of bad area, sig: 11 [#1] # [ 0.000000] BE PAGE_SIZE=16K PREEMPT # [ 0.000000] Modules linked in: # [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.3.0-rc4-s3k-dev-00743-g5abe4a3e8fd3-dirty #2080 # [ 0.000000] NIP: c0013c7c LR: c0013310 CTR: 00000000 # [ 0.000000] REGS: c0c5ff38 TRAP: 0300 Not tainted (5.3.0-rc4-s3k-dev-00743-g5abe4a3e8fd3-dirty) # [ 0.000000] MSR: 00001032 CR: 99033955 XER: 80002100 # [ 0.000000] DAR: f818c000 DSISR: 82000000 # [ 0.000000] GPR00: c0013310 c0c5fff0 c0ad6ac0 c0c600c0 f818c031 82000000 00000000 ffffffff # [ 0.000000] GPR08: 00000000 f1f1f1f1 c0013c2c c0013304 99033955 00400008 00000000 07ff9598 # [ 0.000000] GPR16: 00000000 07ffb94c 00000000 00000000 00000000 00000000 00000000 f818cfb2 # [ 0.000000] GPR24: 00000000 00000000 00001000 ffffffff 00000000 c07dbf80 00000000 f818c000 # [ 0.000000] NIP [c0013c7c] do_page_fault+0x50/0x904 # [ 0.000000] LR [c0013310] handle_page_fault+0xc/0x38 # [ 0.000000] Call Trace: # [ 0.000000] Instruction dump: # [ 0.000000] be010080 91410014 553fe8fe 3d40c001 3d20f1f1 7d800026 394a3c2c 3fffe000 # [ 0.000000] 6129f1f1 900100c4 9181007c 91410018 <913f0000> 3d2001f4 6129f4f4 913f0004 # # Don't map the early shadow page read-only yet when creating the new # page tables for the real shadow memory, otherwise the memblock # allocations that immediately follows to create the real shadow pages # that are about to replace the early shadow page trigger a page fault # if they fall into the region being worked on at the moment. # # Signed-off-by: Christophe Leroy # Fixes: 2edb16efc899 ("powerpc/32: Add KASAN support") # Cc: stable@vger.kernel.org # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/fe86886fb8db44360417cee0dc515ad47ca6ef72.1566382750.git.christophe.leroy@c-s.fr # < /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 8251677ee8cdf2e8796f4271a5b443448a232247 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc6xx_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/sound/ppc/pmac.h:12:0, from /kisskb/src/sound/ppc/awacs.c:16: /kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:208:9: warning: 'speaker_vol' may be used uninitialized in this function [-Wmaybe-uninitialized] return _snd_ctl_add_slave(master, slave, 0); ^ /kisskb/src/sound/ppc/awacs.c:873:36: note: 'speaker_vol' was declared here struct snd_kcontrol *master_vol, *speaker_vol; ^ INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa87c9c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa77584) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa77584) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-5.3.0-rc2+ Created: Fri Sep 20 23:38:26 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5043717 Bytes = 4925.50 KiB = 4.81 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0-rc2+ Created: Fri Sep 20 23:38:26 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5044168 Bytes = 4925.95 KiB = 4.81 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0-rc2+ Created: Fri Sep 20 23:38:26 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5044611 Bytes = 4926.38 KiB = 4.81 MiB Load Address: 00b00000 Entry Point: 00b00894 Image Name: Linux-5.3.0-rc2+ Created: Fri Sep 20 23:38:26 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5043094 Bytes = 4924.90 KiB = 4.81 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0-rc2+ Created: Fri Sep 20 23:38:26 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5042786 Bytes = 4924.60 KiB = 4.81 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0-rc2+ Created: Fri Sep 20 23:38:26 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5043101 Bytes = 4924.90 KiB = 4.81 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0-rc2+ Created: Fri Sep 20 23:38:26 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5044182 Bytes = 4925.96 KiB = 4.81 MiB Load Address: 00b00000 Entry Point: 00b00894 Image Name: Linux-5.3.0-rc2+ Created: Fri Sep 20 23:38:26 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5012863 Bytes = 4895.37 KiB = 4.78 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.3.0-rc2+ Created: Fri Sep 20 23:38:26 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5042452 Bytes = 4924.27 KiB = 4.81 MiB Load Address: 00b00000 Entry Point: 00b00294 Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 # Build took: 0:01:55.544244