linux-kernel - Re: [Bugme-new] [Bug 7495] New: Kernel periodically hangs.

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Message-ID: <1584.1163416939@redhat.com>
Date:	Mon, 13 Nov 2006 11:22:19 +0000
From:	David Howells <dhowells@...hat.com>
To:	Neil Brown <neilb@...e.de>
Cc:	Andrew Morton <akpm@...l.org>, David Howells <dhowells@...hat.com>,
	"bugme-daemon@...nel-bugs.osdl.org" 
	<bugme-daemon@...zilla.kernel.org>, linux-kernel@...r.kernel.org,
	alex@...snet.ru
Subject: Re: [Bugme-new] [Bug 7495] New: Kernel periodically hangs. 

Neil Brown <neilb@...e.de> wrote:

> it would appear that in:
> 	if (inode->i_sb && inode->i_sb->s_op->clear_inode)
> 		inode->i_sb->s_op->clear_inode(inode);
> 
> inode->i_sb->s_op is NULL.

Agreed.

> This tends to suggest that generic_shutdown_super isn't releasing all inodes
> before the superblock gets destroyed.
> 
> I cannot see how this could be happening

Perhaps sb->s_root == NULL?  That would permit most of generic_shutdown_super()
to be bypassed, including the check that all the inodes have been consumed.

David
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