NetBSD Problem Report #28706
From www@netbsd.org Sat Dec 18 22:16:40 2004
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Date: Sat, 18 Dec 2004 22:16:40 +0000 (UTC)
From: lars.nordlund@hem.utfors.se
Reply-To: lars.nordlund@hem.utfors.se
To: gnats-bugs@netbsd.org
Subject: ahc1: Bus Device Reset Message Sent, Inactive SCB in untaggedQ -----> hang
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>Number: 28706
>Category: kern
>Synopsis: ahc1: Bus Device Reset Message Sent, Inactive SCB in untaggedQ -----> hang
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sat Dec 18 22:18:00 +0000 2004
>Originator: Lars Nordlund
>Release: NetBSD 2.99.10
>Organization:
>Environment:
NetBSD glengoyne 2.99.10 NetBSD 2.99.10 (GLENGOYNE) #1: Sat Dec 18 21:41:47 CET 2004 builder@glengoyne:/space/builder/obj_i386/sys/arch/i386/compile/GLENGOYNE i386
>Description:
When using cdparanoia to grab audio tracks from a CD using this device:
cd0 at scsibus0 target 1 lun 0: <PIONEER, DVD-ROM DVD-305, 1.05> cdrom removable
cd0: sync (50.00ns offset 16), 8-bit (20.000MB/s) transfers
the system might hang. Most CDs work fine, but some will cause the hang. Running in console mode I caught this (manually typed from console output, beware of spelling errors):
ahc1: Bus Device Reset Message Sent
Inactive SCB in untaggedQ
Inactive SCB in untaggedQ
uvm_fault(0xcd90c620,0,0,2)->0xe
kernel: page fault trap, code=0
Stopped in pid 438.1 (syslogd) at
netbsd:scsipi_user_done + 0x26:
movb $0, 0x5b (%ebx)
The system drops to debugger, I type 'bt'. These are the function call stack of the topmost section:
scsipi_user_done
scsipi_complete
scsipi_done
ahc_done
ahc_search_untagged_queue
ahc_search_qinfifo
ahc_abort_scbs
ahc_handle_devreseet
ahc_handle_scsiint
ahc_intr
Xintr_legacy11
When typing 'reboot 0x04' I get the following:
ahc1: Spurious SCSI interrupt
I had to reboot the machine with the finger.
>How-To-Repeat:
Grab audio from an audio CD in a SCSI CD device, and hope this happens. On my machine, it is fully repeatable.
>Fix:
Nothing known.
I have tried turning off tagged queueing, but that did not help.
(Contact us)
$NetBSD: query-full-pr,v 1.39 2013/11/01 18:47:49 spz Exp $
$NetBSD: gnats_config.sh,v 1.8 2006/05/07 09:23:38 tsutsui Exp $
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