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From: John Baldwin <jhb@freebsd.org>
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Cc: Uwe Grohnwaldt <uwe@grohnwaldt.eu>
Subject: Re: Panic with 9.0 Beta 1 (arcmsr.c)
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On Tuesday, August 23, 2011 6:57:45 am Uwe Grohnwaldt wrote:
> Hi,
> 
> i tried to install FBSD 9.0 beta 1. Booting the install-cd stopped with a
> kernel panic:
> 
> panic: _mtx_lock_sleep: recursed on non-recursive mutex arcmsr Q buffer lock
> @ /usr/src/sys/dev/arcmsr/arcmsr.c:2093
> 
> A screenshot from the panic can be found here:
> http://ugrohnwaldt.web02.lando.us/FBSD/arcmsr.png

Looks like this was fixed after BETA1 was released.

-- 
John Baldwin