NetBSD Problem Report #32490

From www@netbsd.org  Tue Jan 10 03:12:08 2006
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Date: Tue, 10 Jan 2006 03:12:08 +0000 (UTC)
From: dheeraj@ece.gatech.edu
Reply-To: dheeraj@ece.gatech.edu
To: gnats-bugs@netbsd.org
Subject: panic in VOP_STRATEGY 
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>Number:         32490
>Category:       kern
>Synopsis:       panic in VOP_STRATEGY
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jan 10 03:15:00 +0000 2006
>Originator:     Dheeraj Reddy
>Release:        NetBSD-current
>Organization:
GT
>Environment:
NetBSD vagisha 3.99.15 NetBSD 3.99.15 (VAGISHA) #0: Mon Jan  9 10:24:11 EST 2006  root@vagisha:/home/src/sys/arch/i386/compile/VAGISHA i386
>Description:
If I am transferring large files over the network.. i seem to
sporadically get this panic and in to ddb>

GNU gdb 5.3nb1
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386--netbsdelf"...(no debugging symbols found)...
(gdb) target kcore /var/crash/netbsd.1.core
#0  0x00000000 in ?? ()
(gdb) bt
#0  0x00000000 in ?? ()
#1  0xc04b6000 in ?? ()
#2  0xc029dfcd in cpu_reboot ()
#3  0xc017782d in db_reboot_cmd ()
#4  0xc0177373 in db_command ()
#5  0xc0177082 in db_command_loop ()
#6  0xc017a1a8 in db_trap ()
#7  0xc029b7ce in kdb_trap ()
#8  0xc02a5a63 in trap ()
#9  0xc0102ca7 in calltrap ()
#10 0xc02affa9 in wdstrategy ()
#11 0xc026f665 in spec_strategy ()
#12 0xc026a108 in VOP_STRATEGY ()
#13 0xc025a57f in bwrite ()
#14 0xc02699fd in VOP_BWRITE ()
#15 0xc01d9166 in softdep_fsync_mountdev ()
#16 0xc01df34e in ffs_full_fsync ()
#17 0xc01ded50 in ffs_fsync ()
#18 0xc0269dbc in VOP_FSYNC ()
#19 0xc026fd23 in sched_sync ()

>How-To-Repeat:
enable both the BUFQ_READPRIO, BUFQ_PRIOSCAN options in the kernel

I shall try to make a debug kernel and get a more detailed trace.



>Fix:
Unknown as yet.

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