NetBSD Problem Report #39895

From www@NetBSD.org  Tue Nov 11 16:51:28 2008
Return-Path: <www@NetBSD.org>
Received: from mail.netbsd.org (mail.netbsd.org [204.152.190.11])
	by narn.NetBSD.org (Postfix) with ESMTP id 388B363B8A9
	for <gnats-bugs@gnats.netbsd.org>; Tue, 11 Nov 2008 16:51:28 +0000 (UTC)
Message-Id: <20081111165127.D0BD963B898@narn.NetBSD.org>
Date: Tue, 11 Nov 2008 16:51:27 +0000 (UTC)
From: rhaen@NetBSD.org
Reply-To: rhaen@NetBSD.org
To: gnats-bugs@NetBSD.org
Subject: NetBSD-5 Beta crashed on heavy IO
X-Send-Pr-Version: www-1.0

>Number:         39895
>Category:       kern
>Synopsis:       NetBSD-5 Beta crashed on heavy IO
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Nov 11 16:55:00 +0000 2008
>Originator:     Ulrich Habel
>Release:        NetBSD 5.0_BETA
>Organization:
>Environment:
NetBSD hobbes.br.de 5.0_BETA NetBSD 5.0_BETA (GENERIC) #1: Wed Nov  5 19:45:49 CET 2008  root@lupin.br.de:/usr/obj/sys/arch/i386/compile/GENERIC i386
>Description:
I was bulkbuilding a full bulk with pbulk in the background and synced the already built packages on my external disk (MSDOS filesystem).

The system just throw me into db{0}.




gdb ./netbsd.0
GNU gdb 6.5
Copyright (C) 2006 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"...
(gdb) target kvm netbsd.0.core
#0  0xc01b30a7 in db_fncall ()
(gdb) bt
#0  0xc01b30a7 in db_fncall ()
#1  0xc01b32b8 in db_command ()
#2  0xc01b3602 in db_command_loop ()
#3  0xc01b6510 in db_trap ()
#4  0xc053514b in kdb_trap ()
#5  0xc053cdd3 in trap ()
#6  0xc010cb1f in calltrap ()
#7  0xc04afd37 in bio_doread ()
#8  0xc04aff92 in bread ()
#9  0xc03421d8 in pcbmap ()
#10 0xc0346735 in msdosfs_bmap ()
#11 0xc04c57d3 in VOP_BMAP ()
#12 0xc04c79d3 in genfs_do_io ()
#13 0xc04c80e1 in genfs_gop_write ()
#14 0xc04c91bf in genfs_do_putpages ()
#15 0xc04c933d in genfs_putpages ()
#16 0xc04c53c3 in VOP_PUTPAGES ()
#17 0xc0408ee1 in uvm_pageout ()
#18 0xc01002e1 in lwp_trampoline ()
(gdb) Q

>How-To-Repeat:
I haven't repeated it so far, high IO load seems to cause problems in conjunction with the MSDOS fs.
>Fix:
yes please.

Home	PR Database Search