Date: Wed, 22 May 2002 22:40:03 -0700 (PDT) From: "Seth J. Hettich" <sjh@rodan.ICS.UCI.EDU> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/38438: System crashes when starting XFree4 Message-ID: <200205230540.g4N5e3B21996@freefall.freebsd.org>
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The following reply was made to PR kern/38438; it has been noted by GNATS.
From: "Seth J. Hettich" <sjh@rodan.ICS.UCI.EDU>
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: Re: kern/38438: System crashes when starting XFree4
Date: Wed, 22 May 2002 22:38:45 -0700
I got a crash dump!
From the info file:
Good dump found on device /dev/ad0s1b
Architecture: i386
Architecture version: 1
Dump length: 268435456B (256 MB)
Blocksize: 512
Dumptime: Wed May 22 22:19:12 2002
Hostname: plonq.ucf.ics.uci.edu
Versionstring: FreeBSD 5.0-CURRENT #6: Wed May 22 22:15:28 PDT 2002
s@plonq.ucf.ics.uci.edu:/u1/src/src/sys/i386/compile/SJH
Panicstring: bremfree: bp 0xc77725e0 not locked
Bounds: 1
From gdb:
IdlePTD at phsyical address 0x005d3000
initial pcb at physical address 0x004bbd20
panicstr: bremfree: bp 0xc77725e0 not locked
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xdeadc0ee
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0289ccb
stack pointer = 0x10:0xcf665c6c
frame pointer = 0x10:0xcf665c74
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 = 279 (xkbcomp)
trap number = 12
panic: page fault
syncing disks... panic: bremfree: bp 0xc77725e0 not locked
Uptime: 42s
pfs_vncache_unload(): 2 entries remaining
Dumping 256 MB
ata0: resetting devices .. done
16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
(kgdb) where
#0 0xc0271e06 in doadump ()
#1 0xc027228f in boot ()
#2 0xc0272434 in poweroff_wait ()
#3 0xc02a503d in bremfree ()
#4 0xc02a67d0 in vfs_bio_awrite ()
#5 0xc03566fb in ffs_fsync ()
#6 0xc0355014 in ffs_sync ()
#7 0xc02b334f in sync ()
#8 0xc0271ee3 in boot ()
#9 0xc0272434 in poweroff_wait ()
#10 0xc039a07a in trap_fatal ()
#11 0xc0399dc8 in trap_pfault ()
#12 0xc03999ac in trap ()
#13 0xc0289ccb in witness_destroy ()
#14 0xc026b603 in mtx_destroy ()
#15 0xc025d2fb in fdfree ()
#16 0xc0261854 in exit1 ()
#17 0xc02615ef in sys_exit ()
#18 0xc039a2e3 in syscall ()
#19 0xc038d1ed in syscall_with_err_pushed ()
#20 0x80498f7 in ?? ()
I can't get symbols:
(kgdb) symbol-file kernel.debug
Reading symbols from kernel.debug...Dwarf Error: Cannot handle DW_FORM_strp in D
WARF reader.
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