Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 8 Jul 2004 16:38:42 -0700 (PDT)
From:      John Kozubik <john@kozubik.com>
To:        freebsd-hackers@freebsd.org
Subject:   Re: rapid file creation on snapshotted filesystems panics lockmgr
Message-ID:  <20040708163658.K806-100000@kozubik.com>
In-Reply-To: <20040706224911.F806-100000@kozubik.com>

next in thread | previous in thread | raw e-mail | index | archive | help


On Wed, 7 Jul 2004, John Kozubik wrote:

> Rapid file creation on filesystems with as few as one snapshot on them
> will panic lockmgr:
>
> panic: lockmgr: locking against myself
> cpuid = 0;
>
> syncing disks, buffers remaining... panic: ffs_copyonwrite: recursive call
> cpuid = 0;
> uptime: 5m10s
> Shutting down ACPI
>
> (crash)


One item that must be mentioned is that this does not manifest itself on
the root filesystem (/).  It will manifest itself on all other
filesystems, though, and since my original post I have tested and verified
it on several other systems with different 5.2.1-RELEASE kernel
configurations and hardware.


-----
John Kozubik - john@kozubik.com - http://www.kozubik.com



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040708163658.K806-100000>