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um: fix crash while os_dump_core() 

os_dump_core() emits SIGTERM to terminate all UML processes.  Kernel
threads have to exit on SIGTERM instead of calling last_ditch_exit().
Multiple calls to last_ditch_exit() can cause a crash.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Richard Weinberger 2011-05-24 17:13:04 -07:00 committed by Linus Torvalds
parent 607647ab04
commit db271cf03f
1 changed files with 1 additions and 0 deletions
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arch/um/os-Linux/process.c
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@ -253,6 +253,7 @@ void init_new_thread_signals(void)
SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM,
SIGVTALRM, -1);
signal(SIGWINCH, SIG_IGN);
signal(SIGTERM, SIG_DFL);
}
int run_kernel_thread(int (*fn)(void *), void *arg, jmp_buf **jmp_ptr)