Date: Tue, 17 Sep 2002 13:27:28 +1000 From: Greg Lane <gregory.lane@anu.edu.au> To: freebsd-hackers@FreeBSD.org Subject: Kernel panic under heavy disk load - trace enclosed Message-ID: <20020917032728.GA458@nucl03.anu.edu.au>
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G'day all,
At some point a few months ago my workstation began to periodically crash.
Eventually I realised it was when it was put under heavy disk load.
Something like "make clean" in the ports tree, "rm -rf *" in a directory
with many files, or (sometimes) a "make buildworld", would bring it down.
Recently, I finally got around to compiling a debug kernel and saving a
crash dump. In trying "rm -rf /usr/ports" I brought it down three times.
Each trace is identical. One is shown below. A dmesg is attached also.
I have been tracking stable on this machine since the beginning of 2001.
The troubles started (I am guessing) April'ish this year (2002).
Can anyone tell me if this hardware or a real bug? Is there anything
else I could supply which would help in understanding the problem?
Cheers,
Greg
(kgdb) where
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1 0xc017caab in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:316
#2 0xc017cee9 in panic (fmt=0xc02c8300 "lockmgr: locking against myself")
at /usr/src/sys/kern/kern_shutdown.c:595
#3 0xc017739b in lockmgr (lkp=0xcbccdeb8, flags=33620002,
interlkp=0xc034e094, p=0xd2de45e0) at /usr/src/sys/kern/kern_lock.c:337
#4 0xc01a47e8 in getblk (vp=0xd391aa80, blkno=8519728, size=6144, slpflag=0,
slptimeo=0) at /usr/src/sys/sys/buf.h:305
#5 0xc01a29a6 in bread (vp=0xd391aa80, blkno=8519728, size=6144, cred=0x0,
bpp=0xd392ab30) at /usr/src/sys/kern/vfs_bio.c:508
#6 0xc0226c79 in ffs_freefile (pvp=0xd392ac54, ino=1032215, mode=33188)
at /usr/src/sys/ufs/ffs/ffs_alloc.c:1592
#7 0xc022be24 in handle_workitem_freefile (freefile=0xc2143860)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:2913
#8 0xc02293c3 in process_worklist_item (matchmnt=0x0, flags=0)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:737
#9 0xc022922e in softdep_process_worklist (matchmnt=0x0)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:622
#10 0xc017c909 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:261
#11 0xc017cee9 in panic (fmt=0xc02d8dc0 "ffs_blkfree: freeing free frag")
at /usr/src/sys/kern/kern_shutdown.c:595
#12 0xc02269bf in ffs_blkfree (ip=0xd392ae0c, bno=8103, size=1024)
at /usr/src/sys/ufs/ffs/ffs_alloc.c:1470
#13 0xc022af1e in handle_workitem_freeblocks (freeblks=0xc202df00)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:2146
#14 0xc022939b in process_worklist_item (matchmnt=0x0, flags=0)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:723
#15 0xc022922e in softdep_process_worklist (matchmnt=0x0)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:622
#16 0xc01aae87 in sched_sync () at /usr/src/sys/kern/vfs_subr.c:1177
(kgdb) up 3
#3 0xc017739b in lockmgr (lkp=0xcbccdeb8, flags=33620002,
interlkp=0xc034e094, p=0xd2de45e0) at /usr/src/sys/kern/kern_lock.c:337
337 panic("lockmgr: locking against myself");
(kgdb) up 1
#4 0xc01a47e8 in getblk (vp=0xd391aa80, blkno=8519728, size=6144, slpflag=0,
slptimeo=0) at /usr/src/sys/sys/buf.h:305
305 ret = lockmgr(&(bp)->b_lock, (locktype), &buftimelock, curproc);
(kgdb) up 8
#12 0xc02269bf in ffs_blkfree (ip=0xd392ae0c, bno=8103, size=1024)
at /usr/src/sys/ufs/ffs/ffs_alloc.c:1470
1470 panic("ffs_blkfree: freeing free frag");
(kgdb) up 1
#13 0xc022af1e in handle_workitem_freeblocks (freeblks=0xc202df00)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:2146
2146 ffs_blkfree(&tip, bn, bsize);
Copyright (c) 1992-2002 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 4.7-PRERELEASE #0: Mon Sep 16 10:20:40 EST 2002
root@backup.lane.network:/usr/obj/usr/src/sys/NUCL03
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 730950415 Hz
CPU: Pentium III/Pentium III Xeon/Celeron (730.95-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x686 Stepping = 6
Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
OV,PAT,PSE36,MMX,FXSR,SSE>
real memory = 536739840 (524160K bytes)
avail memory = 518791168 (506632K bytes)
Preloaded elf kernel "kernel" at 0xc03bc000.
netsmb_dev: loaded
Pentium Pro MTRR support enabled
Using $PIR table, 10 entries at 0xc00f3ad0
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82801BA/BAM (ICH2) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <VGA-compatible display device> at 0.0 irq 11
pcib2: <Intel 82801AA (ICH) Hub to PCI bridge> at device 30.0 on pci0
pci2: <PCI bus> on pcib2
ahc_pci0: <Adaptec 2940 Ultra SCSI adapter> port 0xd800-0xd8ff mem 0xfeaff000-0x
feafffff irq 11 at device 7.0 on pci2
aic7880: Ultra Wide Channel A, SCSI Id=7, 16/253 SCBs
vr0: <VIA VT3043 Rhine I 10/100BaseTX> port 0xdc00-0xdc7f mem 0xfeafec00-0xfeafe
c7f irq 5 at device 11.0 on pci2
vr0: Ethernet address: 00:80:c8:da:0b:69
miibus0: <MII bus> on vr0
amphy0: <DM9101 10/100 media interface> on miibus0
amphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0xd480-0xd4ff mem 0xfeafe800-0xfeaf
e87f irq 11 at device 15.0 on pci2
xl0: Ethernet address: 00:01:02:80:d0:e5
miibus1: <MII bus> on xl0
xlphy0: <3c905C 10/100 internal PHY> on miibus1
xlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
isab0: <Intel 82801AA (ICH) PCI to LPC bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH ATA66 controller> port 0xffa0-0xffaf at device 31.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
pci0: <Intel 82801AA (ICH) USB controller> at 31.2 irq 9
pci0: <unknown card> (vendor=0x8086, dev=0x2413) at 31.3 irq 10
pcm0: <Intel 82801AA (ICH)> port 0xef00-0xef3f,0xe800-0xe8ff irq 10 at device 31
.5 on pci0
orm0: <Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xcffff,0xd0000-0xd07ff on
isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model IntelliMouse, device ID 3
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
ppi0: <Parallel I/O> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
IP packet filtering initialized, divert enabled, rule-based forwarding enabled,
default to deny, logging limited to 1000 packets/entry by default
ad0: 14324MB <QUANTUM FIREBALLlct15 15> [29104/16/63] at ata0-master UDMA66
ad1: 78167MB <Maxtor 98196H8> [158816/16/63] at ata0-slave UDMA66
ad3: 117246MB <Maxtor 4G120J6> [238216/16/63] at ata1-slave UDMA66
acd0: CD-RW <LITE-ON LTR-40125S> at ata1-master PIO4
Waiting 15 seconds for SCSI devices to settle
sa0 at ahc0 bus 0 target 3 lun 0
sa0: <EXABYTE EXB-8500-85Qanx0 0446> Removable Sequential Access SCSI-2 device
sa0: 4.032MB/s transfers (4.032MHz, offset 11)
sa1 at ahc0 bus 0 target 5 lun 0
sa1: <Quantum DLT4000 D782> Removable Sequential Access SCSI-2 device
sa1: 10.000MB/s transfers (10.000MHz, offset 15)
Mounting root from ufs:/dev/ad0s1a
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