Date: Wed, 22 Mar 2000 10:38:53 +0100 (CET) From: Alexander Leidinger <Alexander@Leidinger.net> To: current@freebsd.org Subject: backtrace: vm_object_terminate: freeing busy page Message-ID: <200003220938.KAA01303@Magelan.Leidinger.net>
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Hi,
5-current with last commit to sys/ at 2000/03/20 23:12:17 PST (date
taken from CVSROOT/commitlogs/sys), world and kernel are in sync:
(2) root@ttyp2# gdb -k /sys/compile/WORK/kernel.debug /var/crash/vmcore.1
[...]
IdlePTD 3747840
initial pcb at 2fcae0
panicstr: vm_object_terminate: freeing busy page 0xc049abf0
panic messages:
---
panic: vm_object_terminate: freeing busy page 0xc049abf0
syncing disks... 18 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
giving up on 1 buffers
Uptime: 4h12m53s
dumping to dev #ad/0x30001, offset 282744
dump ata0: resetting devices .. done
[...]
(kgdb) bt
#0 boot (howto=256) at ../../kern/kern_shutdown.c:304
#1 0xc0176a65 in panic (
fmt=0xc029cd00 "vm_object_terminate: freeing busy page %p\n")
at ../../kern/kern_shutdown.c:554
#2 0xc0203beb in vm_object_terminate (object=0xc030a7a0)
at ../../vm/vm_object.c:442
#3 0xc0203b14 in vm_object_deallocate (object=0xc030a7a0)
at ../../vm/vm_object.c:377
#4 0xc0200d40 in vm_map_entry_delete (map=0xc7eaac40, entry=0xc0303ba0)
at ../../vm/vm_map.c:1727
#5 0xc0200ee6 in vm_map_delete (map=0xc7eaac40, start=0, end=3217031168)
at ../../vm/vm_map.c:1830
#6 0xc0200f79 in vm_map_remove (map=0xc7eaac40, start=0, end=3217031168)
at ../../vm/vm_map.c:1855
#7 0xc016f265 in exit1 (p=0xc7ea7100, rv=15) at ../../kern/kern_exit.c:216
#8 0xc0178581 in sigexit (p=0xc7ea7100, sig=15) at ../../kern/kern_sig.c:1484
#9 0xc0178324 in postsig (sig=15) at ../../kern/kern_sig.c:1387
#10 0xc025b544 in syscall (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = 134660612, tf_esi = -1077937248, tf_ebp = -1077936824,
tf_isp = -930705452, tf_ebx = 0, tf_edx = 0, tf_ecx = -1077936720,
tf_eax = 0, tf_trapno = 12, tf_err = 2, tf_eip = 134539060, tf_cs = 31,
tf_eflags = 582, tf_esp = -1077938468, tf_ss = 47})
at ../../i386/i386/trap.c:159
#11 0xc024dc66 in Xint0x80_syscall ()
Cannot access memory at address 0xbfbffd48.
At this time I was shutting down the machine (<ctrl>+<alt>+<del>).
Just drop me a note what variables you want to have printed.
Bye,
Alexander.
--
I believe the technical term is "Oops!"
http://www.Leidinger.net Alexander+Home @ Leidinger.net
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