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Sender: Alexander Motin <mavbsd@gmail.com>
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Date: Thu, 03 Jun 2010 10:43:26 +0300
From: Alexander Motin <mav@FreeBSD.org>
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Subject: Re: ata panic: "mtx_lock of destroyed mutex"
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Matthew Jacob wrote:
> Hmm. I just fixed that at Panasas, and I'm pretty sure that I gave the
> patch to Alexander Motin to put in.

Do you mean one committed at r207221 or something else?

>> I've been setting up an amd64 VirtualBox machine with the latest
>> 9-CURRENT and got the following panic when booting it (another machine
>> updated and booting at the same time didn't panic):
>>
>> ata1: WARNING - READ_TOC read data overrun 18>12
>> panic: mtx_lock of destroyed mutex @ /usr/src/sys/kern/kern_sema.c:79
>> cpuid = 0
>>
>> with the following stack trace:
>>
>> kdb_enter
>> panic
>> _mtx_lock_flags
>> _sema_post
>> ata_completed
>> taskqueue_run
>> intr_event_execute_handlers
>> ithread_loop
>> fork_exit
>> fork_trampoline

-- 
Alexander Motin