On ppc64, a process running with the ADDR_COMPAT_LAYOUT personality
causes ptrace(PTRACE_SEIZE) to hang in the kernel, unkillable.
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <sys/personality.h>
#include <sys/ptrace.h>
#include <sys/wait.h>
int
main (void)
{
pid_t child;
personality (ADDR_COMPAT_LAYOUT);
child = fork ();
if (child == 0)
{
kill (getpid (), SIGSTOP);
exit (0);
}
ptrace (PTRACE_SEIZE, child, NULL, NULL);
wait (NULL);
ptrace (PTRACE_CONT, child, NULL, NULL);
}
Andreas.
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
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