[PATCH 7/7] um: fix crash while os_dump_core()

[Richard Weinberger]

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@xxxxxx>
---
 arch/um/os-Linux/process.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index e0477c3..0c45dc8 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -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)
-- 
1.7.4.2

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