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authorJeff Dike <jdike@addtoit.com>2006-02-07 12:58:42 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-07 16:12:32 -0800
commit43b00fdbb13bfc1b2f4a8e5b65315db6d9c479a3 (patch)
tree259d8a28854c007d2e0ee7ca0b0eba7e0f220a0d /arch/um/os-Linux
parent14d9ead05ec925f299ae5cfe948c180c88ec842e (diff)
downloadblackbird-op-linux-43b00fdbb13bfc1b2f4a8e5b65315db6d9c479a3.tar.gz
blackbird-op-linux-43b00fdbb13bfc1b2f4a8e5b65315db6d9c479a3.zip
[PATCH] uml: block SIGWINCH in ptrace tester child
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>
Diffstat (limited to 'arch/um/os-Linux')
-rw-r--r--arch/um/os-Linux/start_up.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 6c5b17ed59e1..829d6b0d8b02 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -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);
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