Date: Wed, 27 Aug 2003 13:41:20 -0700 From: Lee Damon <nomad@castle.org> To: current@freebsd.org Subject: Re: recent 5.1-CURRENT kernel panics on acd0 probe/attach, IBM T30 Message-ID: <200308272041.h7RKfKnx045756@castle.org>
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The fun of getting digests. Roughly 30 seconds after sending my
email I saw the message about atapicam from Kenneth to Martin.
Removing atapicam from my kernel configuration fixed the problem
for me as well.
nomad
>Subject: Re: Kernel panic with CAM on current (fatal trap 12)
>From: "Kenneth D. Merry" <ken@kdm.org>
>Date: Wed, 27 Aug 2003 11:53:28 -0600 (10:53 PDT)
>To: Martin <nakal@web.de>
>Cc: FreeBSD Current <freebsd-current@freebsd.org>
>
>On Wed, Aug 27, 2003 at 16:54:05 +0200, Martin wrote:
>> On Wed, 2003-08-27 at 02:27, Kenneth D. Merry wrote:
>> > There are known problems with atapicam.
>> >
>> > Try enabling DDB in your kernel config, and get a stack trace. If you're
>> > panicing in free_hcb(), disable atapicam and try again.
>>
>> Yes. I did exactly as you said and I got panic in free_hcb(). I disabled
>> atapicam and now it does not panic anymore.
>>
>> And now? :)
>
>Wait for Thomas or someone else to fix the problem.
>
>Ken
>--
>Kenneth Merry
>ken@kdm.org
>
>3.31. recent 5.1-CURRENT kernel panics on acd0 probe/attach, IBM T30
>Subject: recent 5.1-CURRENT kernel panics on acd0 probe/attach, IBM T30
> laptop
>From: Lee Damon <nomad@castle.org>
>Date: Wed, 27 Aug 2003 10:55:05 -0700
>To: current@freebsd.org
>
>: || tylendel.castle.org [10] ; uname -a
>FreeBSD tylendel.castle.org 5.1-CURRENT FreeBSD 5.1-CURRENT #38: Wed Aug 27 09:05:21 PDT 2003 root@tylendel.castle.org:/users/FreeBSD-5.0/obj/users/FreeBSD-5.0/src/sys/TYLENDEL i386
>
>The kernel I compiled on 20 AUG recognizes acd0 and loggs the following:
>
>Aug 27 08:24:10 tylendel kernel: acd0: CD-RW <UJDA720 DVD/CDRW> at ata1-master U
>DMA33
>Aug 27 08:24:10 tylendel kernel: cd0 at ata1 bus 0 target 0 lun 0
>Aug 27 08:24:10 tylendel kernel: cd0: <MATSHITA UJDA720 DVD/CDRW 1.03> Removable
> CD-ROM SCSI-0 device
>Aug 27 08:24:10 tylendel kernel: cd0: 33.000MB/s transfers
>Aug 27 08:24:10 tylendel kernel: cd0: Attempt to query device size failed: NOT R
>EADY, Medium not present - tray closed
>
>However, kernels compiled since Monday's SUP get as far as the initial
>discovery of the acd0 device and then panic with:
>
> fatal trap 12: page fault while in kernel mode
> fault virtual address = 0x0
> fault code = supervisor write, page not present
> instruction pointer = 0x8 :0xc015ca8e
> stack pointer = 0x10 :0xdd79aaac
> frame pointer = 0x10 :0xdd79aab8
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, def 32 1, gran 1
> processor eflags = interrupt enabled, resume, IOPL=0
> current process = 19 (swi 3: cambio)
> kernel: type 12 trap, code=0
> Stopped at free_hcb+0x2e: mov1 %eax,0(xedx)
>
>When I remove the DVD/CDRW from the system it boots.
>
>Kernel configuration is the one from R. Kevin Oberman with firewire
>turned on.
nomad
-----------
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----------- - Lee "nomad" Damon - \
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/\
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