Buildresult: powerpc-fixes/corenet_basic_defconfig/powerpc-gcc4.6 built on Jun 26 2019, 00:03

kisskb

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Status:	OK
Date/Time:	Jun 26 2019, 00:03
Duration:	0:00:26.785757
Builder:	blade4b
Revision:	powerpc/64s/exception: Fix machine check early corrupting AMR (`e13e7cd4c0c1cc9984d9b6a8663e10d76b53f2aa)`
Target:	powerpc-fixes/corenet_basic_defconfig/powerpc-gcc4.6
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	corenet_basic_defconfig (download)
Log:	Download original Possible warnings (3) kernel/printk/printk.c:194:16: 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] kernel/futex.c:1658:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify e13e7cd4c0c1cc9984d9b6a8663e10d76b53f2aa^{commit} e13e7cd4c0c1cc9984d9b6a8663e10d76b53f2aa already have revision, skipping fetch # git checkout -q -f -B kisskb e13e7cd4c0c1cc9984d9b6a8663e10d76b53f2aa # git clean -qxdf # < git log -1 # commit e13e7cd4c0c1cc9984d9b6a8663e10d76b53f2aa # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Sat Jun 22 08:55:54 2019 +1000 # # powerpc/64s/exception: Fix machine check early corrupting AMR # # The early machine check runs in real mode, so locking is unnecessary. # Worse, the windup does not restore AMR, so this can result in a false # KUAP fault after a recoverable machine check hits inside a user copy # operation. # # Fix this similarly to HMI by just avoiding the kuap lock in the # early machine check handler (it will be set by the late handler that # runs in virtual mode if that runs). If the virtual mode handler is # reached, it will lock and restore the AMR. # # Fixes: 890274c2dc4c0 ("powerpc/64s: Implement KUAP for Radix MMU") # Cc: Russell Currey <ruscur@russell.cc> # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 e13e7cd4c0c1cc9984d9b6a8663e10d76b53f2aa # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet_basic_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- corenet_basic_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_corenet_basic_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:194:16: 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:331:21: note: 'pdeo' was declared here /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1658:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here Completed OK # rm -rf /kisskb/build/powerpc-fixes_corenet_basic_defconfig_powerpc-gcc4.6 # Build took: 0:00:26.785757

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