Messages in this thread | | | Date | Thu, 27 Aug 2009 16:05:32 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: mmotm 2009-08-24-16-24 uploaded |
| |
On Thu, 27 Aug 2009 14:44:53 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> > In the newest mmotom, my S14nfslock hangs up. (x86-64/Fedora10) > > On Mon, 24 Aug 2009 16:28:30 -0700 > akpm@linux-foundation.org wrote: > > > ptrace-__ptrace_detach-do-__wake_up_parent-if-we-reap-the-tracee.patch > > do_wait-wakeup-optimization-shift-security_task_wait-from-eligible_child-to-wait_consider_task.patch > > bisected. following 2 patches for filtering SIGCHLD cause hang (for my environ). > > > do_wait-wakeup-optimization-change-__wake_up_parent-to-use-filtered-wakeup.patch > > do_wait-wakeup-optimization-change-__wake_up_parent-to-use-filtered-wakeup-selinux_bprm_committed_creds-use-__wake_up_parent.patch
removed S14nfslockd from rc5.d and check it by strace == 2712] fstat(6, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 [pid 2712] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc6f263c000 [pid 2712] dup(6) = 7 [pid 2712] write(6, "2712\n"..., 5) = 5 [pid 2712] close(6) = 0 [pid 2712] munmap(0x7fc6f263c000, 4096) = 0 [pid 2712] clone(Process 2713 attached child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fc6f2625780) = 2713 [pid 2712] wait4(2713, Process 2712 suspended <unfinished ...> == When process 2713 exits, process 2712 don't wake up.
Then, I sent SIGTERM to 2712 == Process 2713 detached
[pid 2712] <... wait4 resumed> NULL, 0, NULL) = -1 ECHILD (No child processes) [pid 2712] --- SIGTERM (Terminated) @ 0 (0) --- ==
2713 was not caught by 2712.
Thanks, -Kame
| |