Date: Sun, 7 Feb 1999 05:00:10 -0600 From: Zach Heilig <zach@uffdaonline.net> To: freebsd-current@FreeBSD.ORG Subject: Crash seemingly related to VM or NFS... Message-ID: <19990207050010.A2754@znh.org>
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In addition to the below, one [local] file that was open was severely
corrupted [not on disk, it was open in 'vi' and the crash recovery file had
very strange contents -- a few NULs and the standard output of a different
command that I ran sometime before the crash]. On disk, files seem to be
intact.
The kernel/world is from early on Feb 2 (~6am GMT). [Perhaps this has been
fixed since then, but I didn't see any updates that screamed: NFS update!,
just a couple VM updates.]
GDB is free software and you are welcome to distribute copies of it
under certain conditions; type "show copying" to see the conditions.
There is absolutely no warranty for GDB; type "show warranty" for details.
GDB 4.16 (i386-unknown-freebsd),
Copyright 1996 Free Software Foundation, Inc...
IdlePTD 3125248
initial pcb at 27543c
panicstr: vm_page_unwire: invalid wire count: 0
panic messages:
---
panic: vm_page_unwire: invalid wire count: 0
syncing disks... 20 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 giving up
1: dev:00020400, flags:01020034, blkno:131280, lblkno:131280
2: dev:ffffffff, flags:30100210, blkno:1013244, lblkno:2
3: dev:00020407, flags:21000034, blkno:2032, lblkno:2032
4: dev:00020407, flags:21000034, blkno:16, lblkno:16
5: dev:00020407, flags:21020034, blkno:1048672, lblkno:1048672
6: dev:00020404, flags:21020034, blkno:65712, lblkno:65712
7: dev:00020407, flags:11000034, blkno:3016944, lblkno:0
8: dev:00020407, flags:21020034, blkno:3014720, lblkno:3014720
9: dev:00020400, flags:01020034, blkno:131264, lblkno:131264
10: dev:00020404, flags:21020034, blkno:131360, lblkno:131360
11: dev:00020407, flags:21020034, blkno:3014752, lblkno:3014752
12: dev:00020407, flags:23020034, blkno:3672208, lblkno:-12
13: dev:ffffffff, flags:20100014, blkno:7600, lblkno:475
14: dev:00020408, flags:21020034, blkno:2112, lblkno:0
15: dev:00020404, flags:21020034, blkno:65952, lblkno:65952
16: dev:00020404, flags:21020034, blkno:66096, lblkno:66096
17: dev:00020400, flags:01020034, blkno:131376, lblkno:131376
18: dev:00020407, flags:01000034, blkno:3016976, lblkno:1
19: dev:00020400, flags:01020034, blkno:131424, lblkno:131424
dumping to dev 20401, offset 131072
dump 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
---
#0 boot (howto=256) at ../../kern/kern_shutdown.c:287
287 dumppcb.pcb_cr3 = rcr3();
(kgdb) bt
#0 boot (howto=256) at ../../kern/kern_shutdown.c:287
#1 0xf0148dfd in panic (
fmt=0xf024a783 "vm_page_unwire: invalid wire count: %d\n")
at ../../kern/kern_shutdown.c:448
#2 0xf01f0bf3 in vm_page_unwire (m=0xf050bcd0, activate=0)
at ../../vm/vm_page.c:1492
#3 0xf0167786 in vfs_vmio_release (bp=0xf359ef30) at ../../kern/vfs_bio.c:828
#4 0xf0167ccf in getnewbuf (vp=0xf775b380, blkno=476, slpflag=256,
slptimeo=0, size=8192, maxsize=8192) at ../../kern/vfs_bio.c:1106
#5 0xf0168538 in getblk (vp=0xf775b380, blkno=476, size=8192, slpflag=256,
slptimeo=0) at ../../kern/vfs_bio.c:1539
#6 0xf01986d9 in nfs_getcacheblk (vp=0xf775b380, bn=476, size=8192,
p=0xf7289ba0) at ../../nfs/nfs_bio.c:906
#7 0xf01973df in nfs_bioread (vp=0xf775b380, uio=0xf728ff30, ioflag=8323072,
cred=0xf0cf0080, getpages=0) at ../../nfs/nfs_bio.c:416
#8 0xf01bc64c in nfs_read (ap=0xf728feec) at ../../nfs/nfs_vnops.c:963
#9 0xf0173f55 in vn_read (fp=0xf14808c0, uio=0xf728ff30, cred=0xf0cf0080)
at vnode_if.h:303
#10 0xf0153aed in read (p=0xf7289ba0, uap=0xf728ff84)
at ../../kern/sys_generic.c:121
#11 0xf020e81f in syscall (frame={tf_es = 47, tf_ds = 47, tf_edi = 65536,
tf_esi = 134574904, tf_ebp = -272640592, tf_isp = -148308012,
tf_ebx = 65536, tf_edx = 134656328, tf_ecx = 134656328, tf_eax = 3,
tf_trapno = 7, tf_err = 2, tf_eip = 134522272, tf_cs = 31,
tf_eflags = 582, tf_esp = -272640732, tf_ss = 47})
at ../../i386/i386/trap.c:1100
#12 0xf020449c in Xint0x80_syscall ()
#13 0x8048999 in ?? ()
#14 0x804856b in ?? ()
#15 0x80480e9 in ?? ()
(kgdb)
--
Zach Heilig <zach@uffdaonline.net> / Zach Heilig <zach@gaffaneys.com>
"Americans are sensitive about their money, and since this was the first major
change in the greenback in nearly 70 years, a radical redesign might have been
too much for consumers to comprehend" -- John Iddings [COINage, Feb. 1999].
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