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From: "Uwe Grohnwaldt" <uwe@grohnwaldt.eu>
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Date: Tue, 23 Aug 2011 12:57:45 +0200
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Cc: 
Subject: Panic with 9.0 Beta 1 (arcmsr.c)
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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

Chers,
Uwe