Date: Sat, 12 Dec 1998 10:43:21 +0100 (CET) From: Martin.Birgmeier@aon.at To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/9059: 3.0 crashes with high write-to-disk load Message-ID: <199812120943.KAA06809@WP06PORT08.highway.telekom.at>
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>Number: 9059 >Category: kern >Synopsis: 3.0 crashes with high write-to-disk load >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Dec 12 01:50:00 PST 1998 >Last-Modified: >Originator: Martin.Birgmeier@aon.at >Organization: MBi at home >Release: FreeBSD 3.0-CURRENT i386 >Environment: 2 IDE disks (2.5, 8.5 GB), 1 IDE CD-ROM, 1 HP 35480A DAT SCSI, AMD 486/133 CPU kernel config file: -------------------------------------------------------------------------------- # # $Header: /usr/src.local/sys/i386/conf/RCS/GOLEM,v 2.2 1998/12/05 12:54:10 root Exp $ # machine "i386" cpu "I486_CPU" ident "$RCSfile: GOLEM,v $ $Revision: 2.2 $ $Date: 1998/12/05 12:54:10 $" maxusers 40 options "AUTO_EOI_1" options "CD9660" options "CD9660_ROOT" options "COMPAT_43" options DEVFS options FAILSAFE options FFS options FFS_ROOT options INET options IPDIVERT options IPFIREWALL options IPFIREWALL_VERBOSE options "IPFIREWALL_VERBOSE_LIMIT=100" options KTRACE options "MAXCONS=8" options MFS options MFS_ROOT options NFS options NFS_ROOT options SCSI_DELAY=15000 options SYSVMSG options SYSVSEM options SYSVSHM options UCONSOLE options USERCONFIG options USER_LDT config kernel root on wd0s2 controller isa0 controller pci0 controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 disk fd0 at fdc0 drive 0 disk fd1 at fdc0 drive 1 controller wdc0 at isa? port "IO_WD1" bio irq 14 disk wd0 at wdc0 drive 0 # disk wd1 at wdc0 drive 1 controller wdc1 at isa? port "IO_WD2" bio irq 15 disk wd2 at wdc1 drive 0 # disk wd3 at wdc1 drive 1 options ATAPI # Enable ATAPI support for IDE bus options ATAPI_STATIC # Don't do it as an LKM device wcd0 # IDE CD-ROM, requires options ATAPI controller ncr0 controller scbus0 at ncr0 device da0 device sa0 device pass0 device cd0 device sc0 at isa? port "IO_KBD" tty irq 1 device npx0 at isa? port "IO_NPX" irq 13 device sio0 at isa? port "IO_COM1" flags 0x10 tty irq 4 device sio1 at isa? port "IO_COM2" tty irq 3 device lpt0 at isa? port "IO_LPT1" tty irq 7 device ed0 at isa? port 0x300 net irq 5 iomem 0xd8000 # controller snd0 # device sb0 at isa? port 0x220 irq 9 drq 1 device pcm0 at isa? port ? tty irq 9 drq 1 flags 0x0 pseudo-device bpfilter 2 pseudo-device ether pseudo-device loop pseudo-device pty 16 pseudo-device speaker pseudo-device tun 1 pseudo-device vn -------------------------------------------------------------------------------- >Description: When offering a high write-to-disk (only) load, the kernel crashes. Two scenarios: Either freeze & reboot, or sequential freezing of all ttys (under X11 and vtys) plus total freeze. Nothing of this happened before I switched from 2.2.7 to 3.0 current. More information: This happens especially (prob. 80%) if I update my CVS repository via CTM. In this case, nearly no reads happen, but obviously a lot of writes to disk are outstanding. Note the interesting case that if I start a `find / > /dev/null' at the same time, no crash occurs (the find takes about half an hour on my rather slow disks). This seems to be due to the fact that most of the disk cache buffers are filled with read data. It may be that this is an IDE-only problem, as I do not have any SCSI disks attached. >How-To-Repeat: ctm -u -q <several recently fetched CTM files> >Fix: not known >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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