Red Hat Bugzilla – Bug 226745
unkillable processes in D and T states
Last modified: 2008-01-09 11:42:30 EST
Is seems that fix 5ecfbae093f0c37311e89b29bfc0c9d586eace87 aka
[PATCH] fix zap_thread's ptrace related problems
1. The tracee can go from ptrace_stop() to do_signal_stop()
2. It is unsafe to __ptrace_unlink(p) while p->parent may wait
for tasklist_lock in ptrace_detach().
somehow not working anymore.
Attached program will create unkillable processes, but won't do it
Created attachment 147098 [details]
Parent in D-state, child is TASK_STOPPED