Date: Mon, 14 Jan 2002 20:43:11 +0100 (CET) From: Michael Reifenberger <root@nihil.plaut.de> To: FreeBSD-Current <current@freebsd.org> Subject: new panic under -current Message-ID: <20020114204117.I442-100000@nihil>
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Hi,
a new panic while surfing under X:
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This GDB was configured as "i386-unknown-freebsd"...
IdlePTD at phsyical address 0x00412000
initial pcb at physical address 0x00284ca0
panicstr: bwrite: buffer is not busy???
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x80
fault code = supervisor write, page not present
instruction pointer = 0x8:0xc01a3418
stack pointer = 0x10:0xca6efb84
frame pointer = 0x10:0xca6efb9c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 995 (kdeinit)
trap number = 12
panic: page fault
syncing disks... panic: bwrite: buffer is not busy???
Uptime: 4h47m36s
pfs_vncache_unload(): 1 entries remaining
dumping to dev ad0s3b, offset 3933440
dump ata0: resetting devices .. done
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
---
#0 dumpsys () at ../../../kern/kern_shutdown.c:492
492 if (!dodump)
Cannot access memory at address 0x18.
(kgdb) #0 dumpsys () at ../../../kern/kern_shutdown.c:492
#1 0xc01664c8 in boot (howto=0x104) at ../../../kern/kern_shutdown.c:335
#2 0xc0166917 in panic (fmt=0xc023b158 "bwrite: buffer is not busy???") at ../../../kern/kern_shutdown.c:634
#3 0xc0198f33 in bwrite (bp=0xc4b5d4cc) at ../../../kern/vfs_bio.c:676
#4 0xc01994ea in bawrite (bp=0xc4b5d4cc) at ../../../kern/vfs_bio.c:989
#5 0xc0142606 in spec_fsync (ap=0xca6efa40) at ../../../fs/specfs/spec_vnops.c:409
#6 0xc01420cd in spec_vnoperate (ap=0xca6efa40) at ../../../fs/specfs/spec_vnops.c:119
#7 0xc01de870 in ffs_sync (mp=0xc139c000, waitfor=0x2, cred=0xc0b44f00, td=0xc0259f24) at vnode_if.h:441
#8 0xc01a62d6 in sync (td=0xc0259f24, uap=0x0) at ../../../kern/vfs_syscalls.c:669
#9 0xc0166129 in boot (howto=0x100) at ../../../kern/kern_shutdown.c:244
#10 0xc0166917 in panic (fmt=0xc024dffe "%s") at ../../../kern/kern_shutdown.c:634
#11 0xc021a070 in trap_fatal (frame=0xca6efb44, eva=0x80) at ../../../i386/i386/trap.c:842
#12 0xc0219d99 in trap_pfault (frame=0xca6efb44, usermode=0x0, eva=0x80) at ../../../i386/i386/trap.c:756
#13 0xc02197a3 in trap (frame={tf_fs = 0x1000018, tf_es = 0x100010, tf_ds = 0xca540010, tf_edi = 0xca671804,
tf_esi = 0xca671804, tf_ebp = 0xca6efb9c, tf_isp = 0xca6efb70, tf_ebx = 0x0, tf_edx = 0x4, tf_ecx = 0xca671804,
tf_eax = 0x4, tf_trapno = 0xc, tf_err = 0x2, tf_eip = 0xc01a3418, tf_cs = 0x8, tf_eflags = 0x10282,
tf_esp = 0xc186ae50, tf_ss = 0xca54db60}) at ../../../i386/i386/trap.c:426
#14 0xc01a3418 in vput (vp=0x0) at machine/atomic.h:144
#15 0xc14f045a in ?? ()
#16 0xc01a33db in vrele (vp=0xca54db60) at vnode_if.h:654
#17 0xc01ac5fc in vn_close (vp=0xca54db60, flags=0x1, cred=0xc1843600, td=0xca671804) at ../../../kern/vfs_vnops.c:260
#18 0xc01ad076 in vn_closefile (fp=0xc16f7400, td=0xca671804) at ../../../kern/vfs_vnops.c:730
#19 0xc0150f52 in fdrop_locked (fp=0xc16f7400, td=0xca671804) at ../../../sys/file.h:229
#20 0xc015049a in fdrop (fp=0xc16f7400, td=0xca671804) at ../../../kern/kern_descrip.c:1464
#21 0xc015044c in closef (fp=0xc16f7400, td=0xca671804) at ../../../kern/kern_descrip.c:1450
#22 0xc014eede in close (td=0xca671804, uap=0xca6efd20) at ../../../kern/kern_descrip.c:709
#23 0xc021a500 in syscall (frame={tf_fs = 0x2f, tf_es = 0x2f, tf_ds = 0x2f, tf_edi = 0x0, tf_esi = 0x38e092a0,
tf_ebp = 0xbfbfe8dc, tf_isp = 0xca6efd74, tf_ebx = 0x38df67dc, tf_edx = 0xbfbfe944, tf_ecx = 0xbfbfe9dc,
tf_eax = 0x6, tf_trapno = 0xc, tf_err = 0x2, tf_eip = 0x38d95e1c, tf_cs = 0x1f, tf_eflags = 0x287,
tf_esp = 0xbfbfe8b0, tf_ss = 0x2f}) at ../../../i386/i386/trap.c:1034
#24 0xc020e05d in syscall_with_err_pushed ()
#25 0x38dd66b8 in ?? ()
#26 0x387eb4c1 in ?? ()
#27 0x385cdda4 in ?? ()
#28 0x385be68a in ?? ()
#29 0x385c2707 in ?? ()
#30 0x385bfd69 in ?? ()
#31 0x38654cf6 in ?? ()
#32 0x385f740e in ?? ()
#33 0x386063b2 in ?? ()
#34 0x3864ff52 in ?? ()
#35 0x38f510d1 in ?? ()
#36 0x804cb36 in ?? ()
#37 0x804d7f3 in ?? ()
#38 0x804dd4c in ?? ()
#39 0x804eedc in ?? ()
#40 0x804adf1 in ?? ()
(kgdb)
What to look for?
Bye!
----
Michael Reifenberger
^.*Plaut.*$, IT, R/3 Basis, GPS
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