Date: Tue, 24 May 2005 17:20:04 GMT From: Sten Spans <sten@blinkenlights.nl> To: freebsd-alpha@FreeBSD.org Subject: Re: alpha/30486: AlphaServer DS10 floppy access is broken Message-ID: <200505241720.j4OHK4S4090618@freefall.freebsd.org>
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The following reply was made to PR alpha/30486; it has been noted by GNATS.
From: Sten Spans <sten@blinkenlights.nl>
To: Wilko Bulte <wb@freebie.xs4all.nl>
Cc: bug-followup@FreeBSD.ORG, wilko@FreeBSD.ORG
Subject: Re: alpha/30486: AlphaServer DS10 floppy access is broken
Date: Tue, 24 May 2005 19:11:46 +0200 (CEST)
On Tue, 24 May 2005, Wilko Bulte wrote:
> On Tue, May 24, 2005 at 09:18:51AM +0200, Sten Spans wrote..
>>
>> On 6-Current accessing a floppy drive in a DS10
>> causes a kernel crash. Sadly things seem to have
>> deteriorated.
>>
>> I'll update the pr with a proper backtrace this evening.
>>
fatal kernel trap:
trap entry = 0x2 (memory management fault)
faulting va = 0x0
type = access violation
cause = store instruction
pc = 0xfffffc00005e82c0
ra = 0xfffffc0000600634
sp = 0xfffffe001a5a5b50
curthread = 0xfffffc003eae2a80
pid = 7, comm = fdc0
[thread pid 7 tid 100026 ]
Stopped at bus_dmamap_load+0x80: stq t0,0(t1) <0x0> <t0=0x800000,t1=0x0>
db> trace
Tracing pid 7 tid 100026 td 0xfffffc003eae2a80
bus_dmamap_load() at bus_dmamap_load+0x80
isa_dmastart() at isa_dmastart+0x124
fdc_worker() at fdc_worker+0xc80
fdc_thread() at fdc_thread+0x88
fork_exit() at fork_exit+0xf0
exception_return() at exception_return
--- root of call graph ---
db>
--
Sten Spans
"There is a crack in everything, that's how the light gets in."
Leonard Cohen - Anthem
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