I have opened a:
"KDE Kontrol Center" => "Peripherials" =>
"Storage Media" => "A
certain action" => "Propertias"
and have almost simultaneously pressed the button "eject" on a
DVD-drive
- that has led to crash of system.
How next time to avoid crash of system at ejection of a DVD-disk?
==============[START]=============$ kgdb ./kernel.debug /var/crash/vmcore.0
kgdb: kvm_nlist(_stopped_cpus):
kgdb: kvm_nlist(_stoppcbs):
[GDB will not be able to debug user-mode threads:
/usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 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-marcel-freebsd".
Unread portion of the kernel message buffer:
(cd0:ata1:0:0:0): READ(10). CDB: 28 0 0 0 1 9 0 0 1 0
(cd0:ata1:0:0:0): CAM Status: SCSI Status Error
(cd0:ata1:0:0:0): SCSI Status: Check Condition
(cd0:ata1:0:0:0): NOT READY asc:3a,0
(cd0:ata1:0:0:0): Medium not present
(cd0:ata1:0:0:0): Unretryable error
(cd0:ata1:0:0:0): cddone: got error 0x6 back
g_vfs_done():cd0[READ(offset=542720, length=2048)]error = 6
warning: udf_readlblks returned error 6
panic: brelse: free buffer onto another queue???
Uptime: 1d21h54m32s
Dumping 958 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 958MB (245232 pages) 942 926 910 894 878 862 846 830 814 798
782 766 750 734 718 702 686 670 654 (CTRL-C to abort) 638 622 606 590
574 558 542 526 510 494 478 462 446 430 414 398 382 366 350 334 318 302
286 270 254 238 222 206 190 174 158 142 126 110 94 78 62 46 30 14
#0 doadump () at pcpu.h:165
165 __asm __volatile("movl %%fs:0,%0" : "=r"
(td));
(kgdb) bt full
#0 doadump () at pcpu.h:165
No locals.
#1 0xc050a3d4 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
first_buf_printf = 1
#2 0xc050a706 in panic (fmt=0xc070eb27 "brelse: free buffer onto
another queue???") at /usr/src/sys/kern/kern_shutdown.c:565
td = (struct thread *) 0xc6e2b600
bootopt = 260
newpanic = 0
ap = 0xc6e2b600 "\030\002??????"
buf = "brelse: free buffer onto another queue???",
'\0' <repeats
214 times>
#3 0xc055f3ae in brelse (bp=0xd89ebf68) at /usr/src/sys/kern/vfs_bio.c:1315
No locals.
#4 0xc10778a8 in ?? ()
No symbol table info available.
<...>SKIP<...>
#36 0xe8df6a24 in ?? ()
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#37 0xc06ed633 in VOP_CACHEDLOOKUP_APV (vop=0x0, a=0x0) at vnode_if.c:150
rc = 0
Previous frame inner to this frame (corrupt stack?)
(kgdb)
==============[STOP]==============
$ uname -a
FreeBSD inspirra.localdomain 6.2-STABLE FreeBSD 6.2-STABLE #8: Thu Mar
29 19:29:52 MSD 2007
root@inspirra.localdomain:/usr/obj/usr/src/sys/INSPIRRA i386
$ pkg_info -E hal-0\* kde-3\* dbus\* policyk*
dbus-1.0.2_1
dbus-glib-0.73
dbus-qt3-0.70
hal-0.5.8.20070324
kde-3.5.6
policykit-0.1.20060514_3