linux-ext4 - Re: BUG: scheduling while atomic: kswapd0/273/0x00000002

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Message-ID: <20081201155755.GA30217@skywalker>
Date:	Mon, 1 Dec 2008 21:27:55 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	Balbir Singh <balbir@...ux.vnet.ibm.com>
Cc:	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>
Subject: Re: BUG: scheduling while atomic: kswapd0/273/0x00000002

On Mon, Dec 01, 2008 at 09:23:41PM +0530, Balbir Singh wrote:
> * Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com> [2008-12-01 20:56:56]:
> 
> > Hi,
> > 
> > With the latest patch queue i am getting the below error
> >
> 
> Did you enable jbd_debug enabled by any chance? 
> 

No. The problem is we cannot call jbd2_log_wait_commit
from blkdev_releasepage because jbd2_log_wait_commit
does a wait_event 

549                 spin_unlock(&journal->j_state_lock);
550                 wait_event(journal->j_wait_done_commit,
551                                 !tid_gt(tid, journal->j_commit_sequence));
552                 spin_lock(&journal->j_state_lock);

-aneesh
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