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[PATCH] uml: block SIGWINCH in ptrace tester child

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The process that UML uses to probe the host's ptrace capabilities can (rarely)
receive a SIGWINCH, confusing the parent.  This fixes that by blocking
SIGWINCH.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Dike 2006-02-07 12:58:42 -08:00 committed by Linus Torvalds
parent 14d9ead05e
commit 43b00fdbb1
1 changed files with 1 additions and 0 deletions
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arch/um/os-Linux/start_up.c
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@ -49,6 +49,7 @@ static int ptrace_child(void *arg)
int pid = os_getpid(), ppid = getppid();
int sc_result;
change_sig(SIGWINCH, 0);
if(ptrace(PTRACE_TRACEME, 0, 0, 0) < 0){
perror("ptrace");
os_kill_process(pid, 0);