Date: Thu, 23 Dec 2004 18:01:24 +0100 From: Benjamin Lutz <benlutz@datacomm.ch> To: freebsd-stable@freebsd.org Subject: Re: slow system freeze - panic Message-ID: <20041223170124.GA89886@midgard.intranet> In-Reply-To: <200412230408.48770.benlutz@datacomm.ch> References: <200412230408.48770.benlutz@datacomm.ch>
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Well, this is unexpected. I enabled the debugging options as instructed
(INVARIANT_SUPPORT, INVARIANTS, WITNESS, DDB, GDB), rebooted and then
I got this next time I booted:
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2004 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 5.3-RELEASE-p2 #20: Thu Dec 2 03:52:21 CET 2004
maxlor@merlin:/usr/obj/usr/src/sys/MERLIN
WARNING: WITNESS option enabled, expect reduced performance.
WARNING: MPSAFE network stack disabled, expect reduced performance.
ACPI APIC Table: <Nvidia AWRDACPI>
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Athlon(tm) 64 Processor 3500+ (2210.09-MHz 686-class CPU)
Origin = "AuthenticAMD" Id = 0xff0 Stepping = 0
Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
OV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
AMD Features=0xe0500000<NX,AMIE,LM,DSP,3DNow!>
real memory = 1073676288 (1023 MB)
avail memory = 1036861440 (988 MB)
ioapic0 <Version 1.1> irqs 0-23 on motherboard
panic: spin lock rm.mutex_mtx not in order list
KDB: enter: panic
[thread 0]
Stopped at kdb_enter+0x30: leave
db> ps axl
Symbol not found
db> show threads
100011 (0xc268c190) fork_trampoline() at fork_trampoline
100035 (0xc26ec7d0) fork_trampoline() at fork_trampoline
100034 (0xc26ec640) fork_trampoline() at fork_trampoline
100033 (0xc26ec320) fork_trampoline() at fork_trampoline
(...)
100001 (0xc2689190) fork_trampoline() at fork_trampoline
0 (0xc06fbbc0) kdb_enter(c06a4be9,c0700d00,c06a857d,c1021c60,100) at kbd
_enter+0x30
db> show lockedvnods
Locked vnodes
db> show witness
(too much info for me to type (haven't got the serial console running
yet, I can however not find any mention of an rm mutex)
So... what do I do about this?
Greetings
Benjamin
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