NetBSD Problem Report #45862

From  Fri Jan 20 16:52:49 2012
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Date: Fri, 20 Jan 2012 16:51:58 +0000
Subject: Additional hdaudio/mixer kernel crash info
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>Number:         45862
>Category:       kern
>Synopsis:       more hdaudio/mixer failure data in -current
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jan 20 16:55:00 +0000 2012
>Release:        NetBSD 5.99.60
	Method Logic Digial
System: NetBSD kamloops 5.99.60 NetBSD 5.99.60 (kamloops) #40: Fri Jan 19 20:59:12 PDT 2010 root@kamloops:/usr/obj/sys/arch/amd64/compile/kamloops amd64
Architecture: x86_64
Machine: amd64
	Kernel crash in mixer on boot w/ DEBUG kernel


Detecting hardware...panic: kmem_free(0xffff80004d6b3008, 12) != allocated size 16409
fatal breakpoint trap in supervisor mode
trap type 1 code 0 rip ffffffff8022e915 cs 8 rflags 246 cr2 0 cpl 0 rsp ffff80004d691a40
Stopped in pid 0.44 (system) at netbsd:breakpoint+0x5: leave

I've been having hdaudio/mixer issues for months, but this is the first time I've run w/ a debug kernel -- I don't have the prev. PR, but will combine these (seems appropriate) when I do. I do want to get this out as yet another datapoint though, as this flaky audio/mixer behaviour has been going on for some time.
	Run DEBUG -current kernel on Thinkpad T410.

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