Buildresult: linus/mips-allnoconfig/mips-gcc4.6 built on Mar 19 2020, 05:25

kisskb

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Status:	OK
Date/Time:	Mar 19 2020, 05:25
Duration:	0:00:19.668836
Builder:	blade4b
Revision:	mm: slub: be more careful about the double cmpxchg of freelist (`5076190daded2197f62fe92cf69674488be44175)`
Target:	linus/mips-allnoconfig/mips-gcc4.6
Branch:	linus
Compiler:	mips-gcc4.6 (mips-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	allnoconfig (download)
Log:	Download original Possible warnings (1) kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 5076190daded2197f62fe92cf69674488be44175^{commit} 5076190daded2197f62fe92cf69674488be44175 already have revision, skipping fetch # git checkout -q -f -B kisskb 5076190daded2197f62fe92cf69674488be44175 # git clean -qxdf # < git log -1 # commit 5076190daded2197f62fe92cf69674488be44175 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Tue Mar 17 11:04:09 2020 -0700 # # mm: slub: be more careful about the double cmpxchg of freelist # # This is just a cleanup addition to Jann's fix to properly update the # transaction ID for the slub slowpath in commit fd4d9c7d0c71 ("mm: slub: # add missing TID bump.."). # # The transaction ID is what protects us against any concurrent accesses, # but we should really also make sure to make the 'freelist' comparison # itself always use the same freelist value that we then used as the new # next free pointer. # # Jann points out that if we do all of this carefully, we could skip the # transaction ID update for all the paths that only remove entries from # the lists, and only update the TID when adding entries (to avoid the ABA # issue with cmpxchg and list handling re-adding a previously seen value). # # But this patch just does the "make sure to cmpxchg the same value we # used" rather than then try to be clever. # # Acked-by: Jann Horn <jannh@google.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 5076190daded2197f62fe92cf69674488be44175 # < make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-allnoconfig_mips-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux- allnoconfig # < make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-allnoconfig_mips-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux- help # make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-allnoconfig_mips-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux- olddefconfig # make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-allnoconfig_mips-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux- /kisskb/src/arch/mips/vdso/Makefile:69: MIPS VDSO requires binutils >= 2.25 /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] FIT description: Linux 5.6.0-rc6+ Created: Thu Mar 19 05:25:56 2020 Image 0 (kernel@0) Description: Linux 5.6.0-rc6+ Created: Thu Mar 19 05:25:56 2020 Type: Kernel Image Compression: gzip compressed Data Size: 648726 Bytes = 633.52 KiB = 0.62 MiB Architecture: MIPS OS: Linux Load Address: 0x80100000 Entry Point: 0x802218a0 Hash algo: sha1 Hash value: 7daa5dc6c9f1448f23a41ceb24c95106ac663b81 Default Configuration: 'conf@default' Configuration 0 (conf@default) Description: Generic Linux kernel Kernel: kernel@0 Completed OK # rm -rf /kisskb/build/linus_mips-allnoconfig_mips-gcc4.6 # Build took: 0:00:19.668836

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