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authorRichard Weinberger <richard@nod.at>2013-08-18 13:30:08 +0200
committerRichard Weinberger <richard@nod.at>2013-09-07 10:56:58 +0200
commit91d44ff860a9e9c0db81a89cbc24fa31fbd8e6d3 (patch)
treebb14601ab3afbcec3cb8d7d0f207d09cfc792268 /arch/um/drivers/ubd_user.c
parentbc1d72e73be63a7c4a07eb10cf51e91f20bf6076 (diff)
downloadlinux-0-day-91d44ff860a9e9c0db81a89cbc24fa31fbd8e6d3.tar.gz
linux-0-day-91d44ff860a9e9c0db81a89cbc24fa31fbd8e6d3.tar.xz
um: Cleanup SIGTERM handling
Richard reported that some UML processes survive if the UML main process receives a SIGTERM. This issue was caused by a wrongly placed signal(SIGTERM, SIG_DFL) in init_new_thread_signals(). It disabled the UML exit handler accidently for some processes. The correct solution is to disable the fatal handler for all UML helper threads/processes. Such that last_ditch_exit() does not get called multiple times and all processes can exit due to SIGTERM. Reported-and-tested-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/drivers/ubd_user.c')
-rw-r--r--arch/um/drivers/ubd_user.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/um/drivers/ubd_user.c b/arch/um/drivers/ubd_user.c
index a703e45d8aac3..e376f9b9c68d8 100644
--- a/arch/um/drivers/ubd_user.c
+++ b/arch/um/drivers/ubd_user.c
@@ -21,11 +21,6 @@
#include "ubd.h"
#include <os.h>
-void ignore_sigwinch_sig(void)
-{
- signal(SIGWINCH, SIG_IGN);
-}
-
int start_io_thread(unsigned long sp, int *fd_out)
{
int pid, fds[2], err;