linux-kernel - Re: [CRED bug?] 2.6.29-rc3 don't survive on stress workload

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Message-Id: <20090213134326.77C0.A69D9226@jp.fujitsu.com>
Date:	Fri, 13 Feb 2009 13:44:46 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	David Howells <dhowells@...hat.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	"Serge E. Hallyn" <serue@...ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>
Subject: Re: [CRED bug?] 2.6.29-rc3 don't survive on stress workload

Hi

> > 	1. put_user_ns() was being called before the uid (which
> > 	   was in the init_user_ns) was unhashed
> 
> Ah yes...  but only if CONFIG_USER_NS=y.  Otherwise the unhash was being done
> before the release anyway.  With this option set, the unhash was being deferred
> to a workqueue thread.
> 
> Okay, that seems reasonable.

Serge's patch servive on my stress workload for >24 hour.
then, I think his patch have fixed this issue.

thanks.



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