panic, seems related to r234386

Doug Barton dougb at
Tue May 8 01:14:20 UTC 2012

On 05/07/2012 13:11, Mateusz Guzik wrote:
> On Mon, May 07, 2012 at 12:28:41PM -0700, Doug Barton wrote:
>> On 05/06/2012 15:19, Sergey Kandaurov wrote:
>>> On 7 May 2012 01:54, Doug Barton <dougb at> wrote:
>>>> I got this with today's current, previous (working) kernel is r232719.
>>>> panic: _mtx_lock_sleep: recursed on non-recursive mutex struct mount mtx
>>>> @ /frontier/svn/head/sys/kern/vfs_subr.c:4595
>> ...
>>> Please try this patch.

Ok, so far so good. Again, thanks for the quick response. I'm
stress-testing my ext2fs partitions a bit atm, and everything seems Ok.
I'll let you know if I run into any problems.

So my next question is, does removing those locks present any risks?
Should they be replaced by different locks, or were they just safety
belts to start with?

Finally, should my next step be to advance to the latest current + your
patch and see how I go from there?



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