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Date:      Fri, 3 Oct 1997 17:04:39 -0500 (CDT)
From:      Zach Heilig <zach@gaffaneys.com>
To:        FreeBSD-gnats-submit@FreeBSD.ORG
Subject:   kern/4684: crash on very heavy disk activity.
Message-ID:  <199710032204.RAA00469@murkwood.gaffaneys.com>
Resent-Message-ID: <199710032210.PAA15978@hub.freebsd.org>

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>Number:         4684
>Category:       kern
>Synopsis:       crash on very heavy disk activity.
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Oct  3 15:10:01 PDT 1997
>Last-Modified:
>Originator:     Zach Heilig
>Organization:
none
>Release:        FreeBSD 2.2-STABLE i386
>Environment:

2.2 stable as of Sept 18.

Copyright (c) 1992-1997 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
	The Regents of the University of California.  All rights reserved.

FreeBSD 2.2-STABLE #0: Thu Sep 18 09:44:26 CDT 1997
    zach@murkwood.gaffaneys.com:/usr/src/sys/compile/ZACH
CPU: Pentium (166.59-MHz 586-class CPU)
  Origin = "GenuineIntel"  Id = 0x543  Stepping=3
  Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory  = 67108864 (65536K bytes)
avail memory = 62824448 (61352K bytes)
Probing for devices on PCI bus 0:
chip0 <generic PCI bridge (vendor=1106 device=0585 subclass=0)> rev 35 on pci0:0
chip1 <generic PCI bridge (vendor=1106 device=0586 subclass=1)> rev 37 on pci0:7:0
pci0:7:1: VIA Technologies, device=0x0571, class=storage (ide) [no driver assigned]
vga0 <VGA-compatible display device> rev 0 int a irq 10 on pci0:9
ncr0 <ncr 53c875 fast20 wide scsi> rev 1 int a irq 11 on pci0:10
ncr0 waiting for scsi devices to settle
(ncr0:0:0): "MICROP 4743NS S162" type 0 fixed SCSI 2
sd0(ncr0:0:0): Direct-Access 
sd0(ncr0:0:0): 20.0 MB/s (50 ns, offset 15)

sd0(ncr0:0:0): M_DISCONNECT received, but datapointer not saved:
	data=701b4 save=e40016b0 goal=e40016d4.
4100MB (8398656 512 byte sectors)
sd0(ncr0:0:0): with 6506 cyls, 7 heads, and an average 184 sectors/track
(ncr0:1:0): "QUANTUM FIREBALL_TM2110S 300X" type 0 fixed SCSI 2
sd1(ncr0:1:0): Direct-Access 
sd1(ncr0:1:0): 20.0 MB/s (50 ns, offset 15)
2014MB (4124736 512 byte sectors)
sd1(ncr0:1:0): with 6810 cyls, 4 heads, and an average 151 sectors/track
(ncr0:2:0): "iomega jaz 1GB J.83" type 0 removable SCSI 2
sd2(ncr0:2:0): Direct-Access 
sd2(ncr0:2:0): 10.0 MB/s (100 ns, offset 15)

sd2(ncr0:2:0): ILLEGAL REQUEST asc:24,0 Invalid field in CDB
sd2 could not mode sense (4). Using ficticious geometry
1021MB (2091050 512 byte sectors)
sd2(ncr0:2:0): with 1021 cyls, 64 heads, and an average 32 sectors/track
(ncr0:4:0): "SANYO CRD-254S 1.02" type 5 removable SCSI 2
cd0(ncr0:4:0): CD-ROM 
cd0(ncr0:4:0): asynchronous.
can't get the size
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 flags 0x6 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x6>
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
pca0 on motherboard
pca0: PC speaker audio driver
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
npx0 on motherboard
npx0: INT 16 interface
joy0 at 0x201 on isa
joy0: joystick
sb0 at 0x220 irq 5 drq 1 on isa
sb0: <SoundBlaster 16 4.13>
sbxvi0 at 0x0 drq 5 on isa
sbxvi0: <SoundBlaster 16 4.13>
sbmidi0 at 0x330 on isa
 <SoundBlaster MPU-401>
opl0 at 0x388 on isa
opl0: <Yamaha OPL-3 FM>
WARNING: / was not properly dismounted.
sd2(ncr0:2:0): UNIT ATTENTION asc:28,0
sd2(ncr0:2:0):  Not ready to ready transition, medium may have changed
sd2(ncr0:2:0): ILLEGAL REQUEST asc:24,0 Invalid field in CDB
sd2 could not mode sense (4). Using ficticious geometry

>Description:

Here are the last few console messages before the reboot:

sd2(ncr0:2:0): extraneous data discarded.
sd2(ncr0:2:0): COMMAND FAILED (9 0) @f078bc00.
sd2(ncr0:2:0): extraneous data discarded.
sd2(ncr0:2:0); COMMAND FAILED (9 0) @f06b4000.
sd2(ncr0:2:0): extraneous data discarded.
sd2(ncr0:2:0); COMMAND FAILED (9 0) @f06b4000.
sd2(ncr0:2:0): extraneous data discarded.
sd2(ncr0:2:0); COMMAND FAILED (9 0) @f06b4000.
/src: bad dir ino 145920 at offset 0: mangled entry
panic: bad dir
syncing disks... 22 22 21 18 14 9 2 2 2 2 2 2 2 2 2 2 2 2 2 2 giving up
dumping to dev 30401, offset 131072
dump 64 63 ... 1 succeeded

This was during both an rm -rf of a large tree on sd2s1e and a cvs checkout
from the cvs repository I keep on that slice.

I have more information, if you need to know more.  I did keep the core dump
around (and logged the fsck for /dev/sd2s1e).

>How-To-Repeat:

	

>Fix:
	
	

>Audit-Trail:
>Unformatted:



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