bin/164526: kill(1) can not kill process despite on -KILL
Andriy Gapon
avg at FreeBSD.org
Thu Feb 2 21:30:15 UTC 2012
The following reply was made to PR bin/164526; it has been noted by GNATS.
From: Andriy Gapon <avg at FreeBSD.org>
To: bug-followup at FreeBSD.org, kes-kes at yandex.ru
Cc:
Subject: Re: bin/164526: kill(1) can not kill process despite on -KILL
Date: Thu, 02 Feb 2012 23:29:13 +0200
Eugen,
thank you for reporting and debugging this problem.
In addition to what Jilles has already suggested I would like to also advise
that it's possible to use kgdb to examine the vnode and its lock.
You can use kgdb's 'tid' command to switch to a thread of interest (it would be
100195 for your earlier report) and the you can use standard gdb commands to
examine the data.
Another, and more standard way, to deal with deadlocks like this one is
described here:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html
--
Andriy Gapon
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