Buildresult: powerpc-fixes/40x/walnut_defconfig/powerpc-gcc5 built on Feb 1 2019, 06:49

kisskb

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Status:	OK
Date/Time:	Feb 1 2019, 06:49
Duration:	0:00:32.954833
Builder:	ka1
Revision:	powerpc/radix: Fix kernel crash with mremap() (`579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb)`
Target:	powerpc-fixes/40x/walnut_defconfig/powerpc-gcc5
Branch:	powerpc-fixes
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	40x/walnut_defconfig (download)
Log:	Download original Possible warnings (1) arch/powerpc/kernel/head_40x.S:883: Warning: invalid register expression Full Log # git rev-parse -q --verify 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb^{commit} 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb already have revision, skipping fetch # git checkout -q -f -B kisskb 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb # git clean -qxdf # < git log -1 # commit 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb # Author: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> # Date: Wed Jan 23 11:51:38 2019 +0530 # # powerpc/radix: Fix kernel crash with mremap() # # With support for split pmd lock, we use pmd page pmd_huge_pte pointer # to store the deposited page table. In those config when we move page # tables we need to make sure we move the deposited page table to the # correct pmd page. Otherwise this can result in crash when we withdraw # of deposited page table because we can find the pmd_huge_pte NULL. # # eg: # # __split_huge_pmd+0x1070/0x1940 # __split_huge_pmd+0xe34/0x1940 (unreliable) # vma_adjust_trans_huge+0x110/0x1c0 # __vma_adjust+0x2b4/0x9b0 # __split_vma+0x1b8/0x280 # __do_munmap+0x13c/0x550 # sys_mremap+0x220/0x7e0 # system_call+0x5c/0x70 # # Fixes: 675d995297d4 ("powerpc/book3s64: Enable split pmd ptlock.") # Cc: stable@vger.kernel.org # v4.18+ # Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /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 579b9239c1f38665b21e8d0e6ee83ecc96dbd6bb # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_walnut_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 40x/walnut_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_walnut_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/kernel/head_40x.S: Assembler messages: /kisskb/src/arch/powerpc/kernel/head_40x.S:883: Warning: invalid register expression INFO: Uncompressed kernel (size 0x4afc1c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x500000) Completed OK # rm -rf /kisskb/build/powerpc-fixes_40x_walnut_defconfig_powerpc-gcc5 # Build took: 0:00:32.954833

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