Date: Tue, 19 Nov 2002 13:25:49 +0100 From: Christian Brueffer <chris@unixpages.org> To: Thomas Quinot <thomas@FreeBSD.ORG> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: apm suspend/resume panic - atapicam related Message-ID: <20021119122549.GJ11536@unixpages.org> In-Reply-To: <20021118171053.GA82889@melusine.cuivre.fr.eu.org> References: <20021117032558.GF11536@unixpages.org> <20021117230520.GB31217@melusine.cuivre.fr.eu.org> <20021118135148.GH11536@unixpages.org> <20021118171053.GA82889@melusine.cuivre.fr.eu.org>
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On Mon, Nov 18, 2002 at 06:10:53PM +0100, Thomas Quinot wrote:
>
> It would also be interesting to know whether the problem appears with
> atapicam enabled and atapicd disabled. Might be an unforeseen
> interaction between the two of them.
>
The panic also appears with atapicam enabled and atapicd disabled.
Here's a panic from a kernel with your patch:
ata0: resetting ata ch=0xc15a9000, dev=1 .. ndev=1 done
ata1: resetting ata ch=0xc15d0f00, dev=4 .. ndev=c ata1-slave: ATAPI identify retries exceeded
done
atapicam0: null ATA params!
Nov 19 12:52:39 fangorn /kernel: resumed from suspended mode (slept 00:00:08)
fangorn#
Fatal trap 12: page fault while in kernel mode
fault virtual address: = 0x0
fault code = supervidor read, page not present
instruction pointer = 0x8:0xc0155023
stack pointer = 0x10:0xc032x988
frame pointer = 0x10:0xc032x994
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 = Idle
interrupt mask = cam
kernel: type 12 trap, code=0
Stopped at atapi_queue_cmd+0x57: movb 0(%eax),%cl
db> atapicam0: null ATA params!
db> tr
atapi_queue_cmd(c15d0f50,c171f118,c16ea084,24,11,ea60,c015a77c,c171f100,6c0000) at atapi_queue_cmd+0x57
atapi_action(c1660fc0,c1663c00,c16ea000,1,1) at atapi_action+0x4ae
xpt_run_dev_sendq(c1660f80) at xpt_run_dev_sendq+0x1cb
xpt_release_devq_device(c16ea000,1,1,c032ca6c,c018de89) at xpt_release_devq_device+0xda
xpt_release_devq_timeout(c16ea000,400000,0,0,ffffffff) at xpt_release_devq_timeout+0x10
softclock(0,10,10,10,ffffffff) at softclock+0xd1
doreti_swi(10,f24,2,3febf9ff,756e6547) at doreti_swi+0xf
idle_loop() at idle_loop+0x1d
db>
- Christian
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