Date: Wed, 11 Sep 1996 15:24:03 -0400 (EDT) From: jdrobina@infinet.com To: FreeBSD-gnats-submit@freebsd.org Subject: kern/1599: panic: locking against myself Message-ID: <199609111924.PAA00692@drobina.my.domain> Resent-Message-ID: <199609111930.MAA23643@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 1599
>Category: kern
>Synopsis: panic: locking against myself
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Sep 11 12:30:02 PDT 1996
>Last-Modified:
>Originator: James Drobina
>Organization:
None
>Release: FreeBSD 2.2-CURRENT i386
>Environment:
I have a 90MZ Pentium and a Buslogic 445s SCSI card.
Here is the output ftom dmesg:
FreeBSD 2.2-CURRENT #2: Wed Sep 11 06:32:55 EDT 1996
jdrobina@drobina.my.domain:/home/system/sys/compile/drobina
Calibrating clock(s) relative to mc146818A clock...
i586 clock: 90039523 Hz, i8254 clock: 1193273 Hz
CPU: Pentium (90.03-MHz 586-class CPU)
Origin = "GenuineIntel" Id = 0x524 Stepping=4
Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory = 50331648 (49152K bytes)
avail memory = 46473216 (45384K bytes)
Probing for devices on PCI bus 0:
chip0 <generic PCI bridge (vendor=1045 device=c822 subclass=0)> rev 1 on pci0:16
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio2: disabled, not probed.
sio3: disabled, not probed.
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 765
fd0: 1.44MB 3.5in
fd1: 1.2MB 5.25in
bt0: Bt445S/ 0-(32bit) bus
bt0: Your card cannot DMA above 16MB boundary. Bounce buffering enabled.
bt0: reading board settings, busmastering, int=12
bt0: version 3.37, fast sync, parity, 32 mbxs, 32 ccbs
bt0: targ 0 sync rate=10.00MB/s(100ns), offset=15
bt0: targ 1 async
bt0: targ 2 sync rate=10.00MB/s(100ns), offset=15
bt0: targ 3 sync rate=10.00MB/s(100ns), offset=08
bt0: Using Strict Round robin scheme
bt0 at 0x330 irq 12 on isa
bt0 waiting for scsi devices to settle
(bt0:0:0): "MICROP 2217-15MQ1001901 HQ30" type 0 fixed SCSI 2
sd0(bt0:0:0): Direct-Access 1685MB (3450902 512 byte sectors)
(bt0:1:0): "ARCHIVE VIPER 150 21247 -011" type 1 removable SCSI 1
st0(bt0:1:0): Sequential-Access density code 0x0, drive empty
(bt0:2:0): "IBM DORS-32160 S82C" type 0 fixed SCSI 2
sd1(bt0:2:0): Direct-Access 2063MB (4226725 512 byte sectors)
(bt0:3:0): "TEAC CD-ROM CD-56S 1.0A" type 5 removable SCSI 2
cd0(bt0:3:0): CD-ROM cd present [326402 x 2048 byte records]
npx0 on motherboard
npx0: INT 16 interface
pas0 at 0x388 irq 5 drq 3 on isa
pas0: <Pro AudioSpectrum 16D rev 127>
>Description:
My system would reboot while I was grepping some source code on cdrom.
I could't find and error messages anywhere.
I re-ran what I thought would trigger the problem from the console.
These messages were printed on the console:
panic: locking against myself
syncing disks...
>How-To-Repeat:
(After system reboot.)
1. login.
2. mount /cdrom
3. cd /cdrom/usr/include
4. fgrep xx *.h
The error is repeatable. I was able to repeat it three times. My
system seemed to panic at the same place each time. (The cdrom was the
FreeBSD 2.1 live file system.)
>Fix:
Unknown
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199609111924.PAA00692>