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Date:      Wed, 18 Apr 2007 04:10:09 GMT
From:      Rong-En Fan <rafan@FreeBSD.org>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: kern/111766: "panic: ffs_blkfree: freeing free block" during disk activity
Message-ID:  <200704180410.l3I4A9RP040413@freefall.freebsd.org>

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The following reply was made to PR kern/111766; it has been noted by GNATS.

From: Rong-En Fan <rafan@FreeBSD.org>
To: Kris Kennaway <kris@obsecurity.org>
Cc: FreeBSD-gnats-submit@FreeBSD.org
Subject: Re: kern/111766: "panic: ffs_blkfree: freeing free block" during
	disk activity
Date: Wed, 18 Apr 2007 12:01:53 +0800

 On Tue, Apr 17, 2007 at 11:39:41PM -0400, Kris Kennaway wrote:
 > On Wed, Apr 18, 2007 at 11:19:08AM +0800, Rong-En Fan wrote:
 > > On our NFS server, this usually happens when one of the exported partitions
 > > gets full. I have seen this on 4.x, 5.x and 6.x. And I'm pretty sure the
 > > filesystem is in good state (I do fsck -fy every time after crash). The
 > > disk in question is an external raid box.
 > 
 > Interesting, can you repeat this on demand?
 
 I think I tried once but in vain. Some previous backtrace
 at http://www.rafan.org/FreeBSD/panic/freeing_free_block/
 I haven't see this since last Oct, but the filesystem does not
 get full recently (we got larger disks).
 
 From previous experience, usually the panic is triggered on
 the full partition but I saw once or twice that it's triggered
 on another non-full filesystem.
 
 Rong-En Fan



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