Buildresult: linus/pxa255-idp_defconfig/arm-gcc4.6 built on Oct 15 2019, 03:52

kisskb

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Status:	OK
Date/Time:	Oct 15 2019, 03:52
Duration:	0:00:46.333676
Builder:	blade4b
Revision:	kmemleak: Do not corrupt the object_list during clean-up (`2abd839aa7e615f2bbc50c8ba7deb9e40d186768)`
Target:	linus/pxa255-idp_defconfig/arm-gcc4.6
Branch:	linus
Compiler:	arm-gcc4.6 (arm-unknown-linux-gnueabi-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	pxa255-idp_defconfig (download)
Log:	Download original Possible warnings (2) kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 2abd839aa7e615f2bbc50c8ba7deb9e40d186768^{commit} 2abd839aa7e615f2bbc50c8ba7deb9e40d186768 already have revision, skipping fetch # git checkout -q -f -B kisskb 2abd839aa7e615f2bbc50c8ba7deb9e40d186768 # git clean -qxdf # < git log -1 # commit 2abd839aa7e615f2bbc50c8ba7deb9e40d186768 # Author: Catalin Marinas <catalin.marinas@arm.com> # Date: Fri Oct 4 14:46:24 2019 +0100 # # kmemleak: Do not corrupt the object_list during clean-up # # In case of an error (e.g. memory pool too small), kmemleak disables # itself and cleans up the already allocated metadata objects. However, if # this happens early before the RCU callback mechanism is available, # put_object() skips call_rcu() and frees the object directly. This is not # safe with the RCU list traversal in __kmemleak_do_cleanup(). # # Change the list traversal in __kmemleak_do_cleanup() to # list_for_each_entry_safe() and remove the rcu_read_{lock,unlock} since # the kmemleak is already disabled at this point. In addition, avoid an # unnecessary metadata object rb-tree look-up since it already has the # struct kmemleak_object pointer. # # Fixes: c5665868183f ("mm: kmemleak: use the memory pool for early allocations") # Reported-by: Alexey Kardashevskiy <aik@ozlabs.ru> # Reported-by: Marc Dionne <marc.c.dionne@gmail.com> # Reported-by: Ted Ts'o <tytso@mit.edu> # Cc: Andrew Morton <akpm@linux-foundation.org> # Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 2abd839aa7e615f2bbc50c8ba7deb9e40d186768 # < make -s -j 24 ARCH=arm O=/kisskb/build/linus_pxa255-idp_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- pxa255-idp_defconfig # make -s -j 24 ARCH=arm O=/kisskb/build/linus_pxa255-idp_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- /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] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here Completed OK # rm -rf /kisskb/build/linus_pxa255-idp_defconfig_arm # Build took: 0:00:46.333676

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