[dm-devel] [PATCH] multipathd: avoid crash in uevent_cleanup()

[lixiaokeng]

> 
> Hi Martin:
>    Here I add condlog(2, "start funcname"), pthread_cleanup_push(func_print, NULL)
> in every pthread_create func. When these two core happened, "exit tur_thread"
> are less than "start tur_thread". So the trouble may be in tur_thread.
> 

If I made no mistake, these coredumps happened when the tur_thread(which is
libcheck_thread in latest code) was not finished but checker（tur）was
cleared by cleanup_checkers. But I can't understand this, because the ctx
in tur_thread wasn't freed by cleanup_checkers.

Please give me some helps, thanks.

Regards,
Lixiaokeng