Fatal trap 12 with ACPI enabled

[Ceri Davies]

On Tue, Aug 03, 2004 at 02:36:22PM -0700, Nate Lawson wrote:
> Ceri Davies wrote:
> >On Tue, Jul 27, 2004 at 10:22:45PM +0100, Ceri Davies wrote:
> >
> >>On Tue, Jul 27, 2004 at 09:17:23PM +0100, Ceri Davies wrote:
> >>
> >>> 
> >>> Fatal trap 12: page fault while in kernel mode
> >>> cpuid = 0; apic id = 00
> >>> fault virtual address   = 0x3c
> >>> fault code              = supervisor read, page not present
> >>> instruction pointer     = 0x8:0xc04b5dea
> >>> stack pointer           = 0x10:0xc0c21c84
> >>> frame pointer           = 0x10:0xc0c21cdc
> >>> code segment            = base 0x0, limit 0xfffff, type 0x1b
> >>>                         = DPL 0, pres 1, def32 1, gran 1
> >>> processor eflags        = interrupt enabled, resume, IOPL = 0
> >>> current process         = 0 (swapper)
> >>> [thread 0]
> >>> Stopped at      ata_generic_transaction+0x6a6:  testb   $0x1,0x3c(%eax)
> >>> db> tr
> >>> ata_generic_transaction(c159e708) at ata_generic_transaction+0x6a6
> >>> ata_start(c14f1200,c14f1320,0,c07e1e01,57) at ata_start+0x17b
> >>> ata_queue_request(c159e708,c,0,c,8) at ata_queue_request+0x185
> >>> ata_controlcmd(c14f12a8,8,0,0,0,0) at ata_controlcmd+0x80
> >>> ata_identify_devices(c14f1200) at ata_identify_devices+0x150
> >>> ata_boot_attach(0) at ata_boot_attach+0x27
> >>> run_interrupt_driven_config_hooks(0,c1ec00,c1e000,0,c0441325) at
> >>> run_interrupt_driven_config_hooks+0x18
> >>> mi_startup() at mi_startup+0x96
> >>> begin() at begin+0x2c
> >>> db>
> >>
> >>Setting hint.apm.0.disabled = 0 fixes this.
> >
> >
> >Actually, it just hides it by making acpi step aside.  I'd much rather
> >use ACPI - any suggestions on the next step to troubleshoot this?
> >
> >Ceri
> 
> cvsup and test again.  Also, report full boot dmesg.  I fixed a 
> longstanding bug in the ATA code on Sunday Aug 1 which could have caused 
> this.

Thanks Nate, I'll try it.  The full verbose boot dmesg is at
http://shrike.submonkey.net/~setantae/acpi/ in the meantime.

Ceri
-- 
It is not tinfoil, it is my new skin.  I am a robot.
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