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[PATCH] uml: fix a crash under screen 

Running UML inside a detached screen delivers SIGWINCH when UML is not
expecting it.  This patch ignores them.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Dike 2005-08-18 11:24:25 -07:00 committed by Linus Torvalds
parent 718d8989bc
commit 2eaa297ca2
1 changed files with 5 additions and 1 deletions
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6
arch/um/kernel/skas/process.c
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@ -61,7 +61,11 @@ void wait_stub_done(int pid, int sig, char * fname)
CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED)); CATCH_EINTR(n = waitpid(pid, &status, WUNTRACED));
} while((n >= 0) && WIFSTOPPED(status) && } while((n >= 0) && WIFSTOPPED(status) &&
(WSTOPSIG(status) == SIGVTALRM)); ((WSTOPSIG(status) == SIGVTALRM) ||
/* running UML inside a detached screen can cause
* SIGWINCHes
*/
(WSTOPSIG(status) == SIGWINCH)));
if((n < 0) || !WIFSTOPPED(status) || if((n < 0) || !WIFSTOPPED(status) ||
(WSTOPSIG(status) != SIGUSR1 && WSTOPSIG(status) != SIGTRAP)){ (WSTOPSIG(status) != SIGUSR1 && WSTOPSIG(status) != SIGTRAP)){