Date: Wed, 2 Aug 2000 16:42:53 +0200 (CEST) From: Alexander Leidinger <Alexander@Leidinger.net> To: n_hibma@calcaphon.com Cc: current@FreeBSD.org, gibbs@freebsd.org, scsi@greebsd.org Subject: Re: Panic in xpt_setup_ccb (cam_xpt.c) Message-ID: <200008021442.QAA01931@Magelan.Leidinger.net> In-Reply-To: <Pine.BSF.4.20.0008012220221.46507-100000@localhost>
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On 1 Aug, Nick Hibma wrote:
>
> Hm, I had a look at the source code, and to be honest I can't find a
> single reason why the path would be unset.
>
> Did the CD reader detached itself from the bus in the meantime, or did
> something like a bus error occur? Check your messages log around the
> time the panic occurred to see if something like that happened.
---snip---
Jul 29 10:40:55 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out in Message-in phase, SEQADDR == 0x194
Jul 29 10:40:55 Magelan /kernel: (cd0:ahc0:0:1:0): BDR message in message buffer
Jul 29 10:40:57 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out in Message-in phase, SEQADDR == 0x194
Jul 29 10:40:57 Magelan /kernel: (cd0:ahc0:0:1:0): no longer in timeout, status = 34b
Jul 29 10:40:57 Magelan /kernel: ahc0: Issued Channel A Bus Reset. 1 SCBs aborted
Jul 29 10:42:26 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:42:26 Magelan /kernel: (cd0:ahc0:0:1:0): Queuing a BDR SCB
Jul 29 10:42:28 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:42:28 Magelan /kernel: (cd0:ahc0:0:1:0): no longer in timeout, status = 34b
Jul 29 10:42:28 Magelan /kernel: ahc0: Issued Channel A Bus Reset. 1 SCBs aborted
Jul 29 10:43:04 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:43:04 Magelan /kernel: (cd0:ahc0:0:1:0): Queuing a BDR SCB
Jul 29 10:43:06 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:43:06 Magelan /kernel: (cd0:ahc0:0:1:0): no longer in timeout, status = 34b
Jul 29 10:43:06 Magelan /kernel: ahc0: Issued Channel A Bus Reset. 1 SCBs aborted
Jul 29 10:43:47 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:43:47 Magelan /kernel: (cd0:ahc0:0:1:0): Queuing a BDR SCB
Jul 29 10:43:49 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:43:49 Magelan /kernel: (cd0:ahc0:0:1:0): no longer in timeout, status = 34b
Jul 29 10:43:49 Magelan /kernel: ahc0: Issued Channel A Bus Reset. 1 SCBs aborted
Jul 29 10:45:12 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:45:12 Magelan /kernel: (cd0:ahc0:0:1:0): Queuing a BDR SCB
Jul 29 10:45:14 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:45:14 Magelan /kernel: (cd0:ahc0:0:1:0): no longer in timeout, status = 34b
Jul 29 10:45:14 Magelan /kernel: ahc0: Issued Channel A Bus Reset. 1 SCBs aborted
Jul 29 10:45:51 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:45:51 Magelan /kernel: (cd0:ahc0:0:1:0): Queuing a BDR SCB
Jul 29 10:45:53 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:45:53 Magelan /kernel: (cd0:ahc0:0:1:0): no longer in timeout, status = 34b
Jul 29 10:45:53 Magelan /kernel: ahc0: Issued Channel A Bus Reset. 1 SCBs aborted
Jul 29 10:47:31 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:47:31 Magelan /kernel: (cd0:ahc0:0:1:0): Queuing a BDR SCB
Jul 29 10:47:33 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:47:33 Magelan /kernel: (cd0:ahc0:0:1:0): no longer in timeout, status = 34b
Jul 29 10:47:33 Magelan /kernel: ahc0: Issued Channel A Bus Reset. 1 SCBs aborted
Jul 29 10:48:34 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:48:34 Magelan /kernel: (cd0:ahc0:0:1:0): Queuing a BDR SCB
Jul 29 10:48:36 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out while idle, SEQADDR == 0x194
Jul 29 10:48:36 Magelan /kernel: (cd0:ahc0:0:1:0): no longer in timeout, status = 34b
Jul 29 10:48:37 Magelan /kernel: ahc0: Issued Channel A Bus Reset. 1 SCBs aborted
Jul 29 10:48:47 Magelan /kernel: (cd0:ahc0:0:1:0): SCB 0x7 - timed out in Message-in phase, SEQADDR == 0x194
Jul 29 10:48:47 Magelan /kernel: (cd0:ahc0:0:1:0): BDR message in message buffer
---snip---
> At that point in the code it was using the path variable stored in the
> periph and that one is available from when the peripheral was allocated
> up to the point where the refcount for the peripheral reaches zero (that
> could be wrong) or the device is invalidated.
Justin Gibbs (CCed) is looking into a bug with an aic7880, which hit the
tree with his recent commits, perhaps it's related.
Bye,
Alexander.
--
If Bill Gates had a dime for every time a Windows box crashed...
...Oh, wait a minute, he already does.
http://www.Leidinger.net Alexander @ Leidinger.net
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