Date: Thu, 31 Oct 2002 09:55:37 +0200 From: Vallo Kallaste <kalts@estpak.ee> To: freebsd-current@freebsd.org Subject: Crash upon exit from X Message-ID: <20021031075537.GA1120@tiiu.internal>
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Hi
Yesterday I had crash just after exit from X and KDE3. Sources and
kernel are from 24 Oct. ~9:30 GMT.
Script started on Thu Oct 31 09:45:34 2002
bash-2.05b# gdb -k /usr/src/sys/i386/compile/Myhakas-5.0-SMP/kernel.debug /usr/c rash/vmcore.1
GNU gdb 5.2.1 (FreeBSD)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or 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.
This GDB was configured as "i386-undermydesk-freebsd"...
panic: bwrite: buffer is not busy???
panic messages:
---
Fatal trap 12: page fault while in kernel mode
cpuid = 0; lapic.id = 00000000
fault virtual address = 0x0
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0239d18
stack pointer = 0x10:0xd6710c20
frame pointer = 0x10:0xd6710c58
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 = 13 (swi6: tty:sio clock)
trap number = 12
panic: page fault
cpuid = 0; lapic.id = 00000000
boot() called on cpu#0
syncing disks... panic: bwrite: buffer is not busy???
cpuid = 0; lapic.id = 00000000
boot() called on cpu#0
Uptime: 5d3h47m33s
Dumping 511 MB
16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256 272 288 304 320 336 352 368 384 400 416 432 448 464 480 496
---
#0 doadump () at ../../../kern/kern_shutdown.c:223
223 dumping++;
(kgdb) where
#0 doadump () at ../../../kern/kern_shutdown.c:223
#1 0xc0236e8a in boot (howto=260) at ../../../kern/kern_shutdown.c:355
#2 0xc0237147 in panic () at ../../../kern/kern_shutdown.c:508
#3 0xc027e982 in bwrite (bp=0xce4b8680) at ../../../kern/vfs_bio.c:796
#4 0xc027f039 in bawrite (bp=0x0) at ../../../kern/vfs_bio.c:1085
#5 0xc033b1bf in ffs_fsync (ap=0xd6710a20) at ../../../ufs/ffs/ffs_vnops.c:236
#6 0xc033a4e9 in ffs_sync (mp=0xc4067200, waitfor=2, cred=0xc13c4e80,
td=0xc0436d40) at vnode_if.h:612
#7 0xc02939e8 in sync (td=0xc0436d40, uap=0x0)
at ../../../kern/vfs_syscalls.c:130
#8 0xc0236a6b in boot (howto=256) at ../../../kern/kern_shutdown.c:264
#9 0xc0237147 in panic () at ../../../kern/kern_shutdown.c:508
#10 0xc03a89a2 in trap_fatal (frame=0xd6710be0, eva=0)
at ../../../i386/i386/trap.c:846
#11 0xc03a8652 in trap_pfault (frame=0xd6710be0, usermode=0, eva=0)
at ../../../i386/i386/trap.c:760
#12 0xc03a80c2 in trap (frame=
{tf_fs = -697237480, tf_es = -1071382512, tf_ds = -1069088752, tf_edi = -1005778304, tf_esi = 1, tf_ebp = -697234344, tf_isp = -697234420, tf_ebx = 0, tf_edx = 0, tf_ecx = 8192, tf_eax = 8192, tf_trapno = 12, tf_err = 0, tf_eip = -1071407848, tf_cs = 8, tf_eflags = 66054, tf_esp = -1005778060, tf_ss = 134217742}) at ../../../i386/i386/trap.c:446
#13 0xc0391328 in calltrap () at {standard input}:99
#14 0xc0243ffc in realitexpire (arg=0xc40d0a80)
at ../../../kern/kern_time.c:531
#15 0xc0244655 in softclock (dummy=0x0) at ../../../kern/kern_timeout.c:195
#16 0xc0223f54 in ithread_loop (arg=0xc13c6600)
at ../../../kern/kern_intr.c:535
#17 0xc0222e14 in fork_exit (callout=0xc0223d80 <ithread_loop>, arg=0x0,
frame=0x0) at ../../../kern/kern_fork.c:860
(kgdb) quit
bash-2.05b# exit
exit
Script done on Thu Oct 31 09:46:04 2002
--
Vallo Kallaste
kalts@estpak.ee
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