[uml-devel] [PATCH 6/8] UML - Block SIGWINCH in ptrace tester child
From: Jeff Dike <hidden>
Date: 2006-02-07 02:23:15
Also in:
lkml
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 <redacted> Index: linux-2.6.15/arch/um/os-Linux/start_up.c ===================================================================
--- linux-2.6.15.orig/arch/um/os-Linux/start_up.c 2006-02-06 17:33:55.000000000 -0500
+++ linux-2.6.15/arch/um/os-Linux/start_up.c 2006-02-06 17:36:29.000000000 -0500@@ -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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