Date: Wed, 29 May 2002 09:33:57 -0700 (PDT) From: Joseph Obernberger <joelori@earthlink.net> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/38698: Kernel panics when filesystem with snapshots taken is filled to capacity: ffs_copyonwrite: recursive call Message-ID: <200205291633.g4TGXvPQ090593@www.freebsd.org>
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>Number: 38698
>Category: i386
>Synopsis: Kernel panics when filesystem with snapshots taken is filled to capacity: ffs_copyonwrite: recursive call
>Confidential: no
>Severity: critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed May 29 09:40:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Joseph Obernberger
>Release: 5.0 Developers Preview
>Organization:
NA
>Environment:
FreeBSD sti32.nssolutions.com 5.0-DP1 FreeBSD 5.0-DP1 #0: Sun Apr 7 02:51:42 GMT 2002 murray@builder.freebsdmall.com:/usr/src/sys/i386/compile/GENERIC i386
>Description:
Hi - I took a snapshot of /var, and mounted it. I then started a copy to /var, and took snapshots while the copy was in progress. Once the partition was over 85% full, I stopped taking snapshots. 4 snapshots were takin of /var. When the partition became full, the kernel paniced with:
ffs_copyonwrite: recursive call
>How-To-Repeat:
Take a snapshot, mount snapshot, fill FS on which the snapshot was taken. While copy is in progress, take a couple more snapshots. I'm not sure if that is necessary.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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