Buildresult: linus/rpc_defconfig/arm-gcc4.9 built on Jul 17 2021, 20:41
kisskb
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Status:
Failed
Date/Time:
Jul 17 2021, 20:41
Duration:
0:00:41.804074
Builder:
blade46
Revision:
coredump: Limit what can interrupt coredumps (
06af8679449d4ed282df13191fc52d5ba28ec536)
Target:
linus/rpc_defconfig/arm-gcc4.9
Branch:
linus
Compiler:
arm-gcc4.9
(arm-linux-gnueabi-gcc (GCC) 4.9.4 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:
rpc_defconfig
(
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Log:
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Possible errors
drivers/tty/vt/vt_ioctl.c:956:1: internal compiler error: Max. number of generated reload insns per insn is achieved (90) make[4]: *** [scripts/Makefile.build:272: drivers/tty/vt/vt_ioctl.o] Error 1 make[3]: *** [scripts/Makefile.build:515: drivers/tty/vt] Error 2 make[2]: *** [scripts/Makefile.build:515: drivers/tty] Error 2 make[1]: *** [Makefile:1844: drivers] Error 2 fs/fat/dir.c:759:43: internal compiler error: Max. number of generated reload insns per insn is achieved (90) make[3]: *** [scripts/Makefile.build:272: fs/fat/dir.o] Error 1 make[2]: *** [scripts/Makefile.build:515: fs/fat] Error 2 make[1]: *** [Makefile:1844: fs] Error 2 make: *** [Makefile:215: __sub-make] Error 2
Possible warnings (2)
net/sched/sch_frag.c:93:10: warning: missing braces around initializer [-Wmissing-braces] net/sched/sch_frag.c:93:10: warning: (near initialization for 'sch_frag_rt.dst') [-Wmissing-braces]
Full Log
# git rev-parse -q --verify 06af8679449d4ed282df13191fc52d5ba28ec536^{commit} 06af8679449d4ed282df13191fc52d5ba28ec536 already have revision, skipping fetch # git checkout -q -f -B kisskb 06af8679449d4ed282df13191fc52d5ba28ec536 # git clean -qxdf # < git log -1 # commit 06af8679449d4ed282df13191fc52d5ba28ec536 # Author: Eric W. Biederman <ebiederm@xmission.com> # Date: Thu Jun 10 15:11:11 2021 -0500 # # coredump: Limit what can interrupt coredumps # # Olivier Langlois has been struggling with coredumps being incompletely written in # processes using io_uring. # # Olivier Langlois <olivier@trillion01.com> writes: # > io_uring is a big user of task_work and any event that io_uring made a # > task waiting for that occurs during the core dump generation will # > generate a TIF_NOTIFY_SIGNAL. # > # > Here are the detailed steps of the problem: # > 1. io_uring calls vfs_poll() to install a task to a file wait queue # > with io_async_wake() as the wakeup function cb from io_arm_poll_handler() # > 2. wakeup function ends up calling task_work_add() with TWA_SIGNAL # > 3. task_work_add() sets the TIF_NOTIFY_SIGNAL bit by calling # > set_notify_signal() # # The coredump code deliberately supports being interrupted by SIGKILL, # and depends upon prepare_signal to filter out all other signals. Now # that signal_pending includes wake ups for TIF_NOTIFY_SIGNAL this hack # in dump_emitted by the coredump code no longer works. # # Make the coredump code more robust by explicitly testing for all of # the wakeup conditions the coredump code supports. This prevents # new wakeup conditions from breaking the coredump code, as well # as fixing the current issue. # # The filesystem code that the coredump code uses already limits # itself to only aborting on fatal_signal_pending. So it should # not develop surprising wake-up reasons either. # # v2: Don't remove the now unnecessary code in prepare_signal. # # Cc: stable@vger.kernel.org # Fixes: 12db8b690010 ("entry: Add support for TIF_NOTIFY_SIGNAL") # Reported-by: Olivier Langlois <olivier@trillion01.com> # Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 06af8679449d4ed282df13191fc52d5ba28ec536 # < make -s -j 32 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- rpc_defconfig # < make -s -j 32 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- help # make -s -j 32 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- olddefconfig # make -s -j 32 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- /kisskb/src/drivers/tty/vt/vt_ioctl.c: In function 'vt_ioctl': /kisskb/src/drivers/tty/vt/vt_ioctl.c:956:1: internal compiler error: Max. number of generated reload insns per insn is achieved (90) } ^ Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make[4]: *** [/kisskb/src/scripts/Makefile.build:272: drivers/tty/vt/vt_ioctl.o] Error 1 make[3]: *** [/kisskb/src/scripts/Makefile.build:515: drivers/tty/vt] Error 2 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/kisskb/src/scripts/Makefile.build:515: drivers/tty] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1844: drivers] Error 2 make[1]: *** Waiting for unfinished jobs.... /kisskb/src/net/sched/sch_frag.c: In function 'sch_fragment': /kisskb/src/net/sched/sch_frag.c:93:10: warning: missing braces around initializer [-Wmissing-braces] struct rtable sch_frag_rt = { 0 }; ^ /kisskb/src/net/sched/sch_frag.c:93:10: warning: (near initialization for 'sch_frag_rt.dst') [-Wmissing-braces] /kisskb/src/fs/fat/dir.c: In function 'fat_ioctl_filldir': /kisskb/src/fs/fat/dir.c:759:43: internal compiler error: Max. number of generated reload insns per insn is achieved (90) FAT_IOCTL_FILLDIR_FUNC(fat_ioctl_filldir, __fat_dirent) ^ /kisskb/src/fs/fat/dir.c:714:9: note: in definition of macro 'FAT_IOCTL_FILLDIR_FUNC' struct dirent_type __user *d2 = d1 + 1; \ ^ Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make[3]: *** [/kisskb/src/scripts/Makefile.build:272: fs/fat/dir.o] Error 1 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/kisskb/src/scripts/Makefile.build:515: fs/fat] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1844: fs] Error 2 make: *** [Makefile:215: __sub-make] Error 2 Command 'make -s -j 32 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_rpc_defconfig_arm-gcc4.9 # Build took: 0:00:41.804074
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