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To: dyson@freebsd.org
cc: current@freebsd.org
Subject: vm deallocate crash (look familiar?)
Date: Tue, 15 Oct 1996 16:39:39 -0700
From: Paul Traina <pst@jnx.com>
Sender: owner-current@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

Here's the latest crash, I've got kernel compiled with -g and core file
available if interested.

This is -current as of yesterday midmorning.

Paul


_Debugger(f0118016) at _Debugger+0x36
_panic(f01bf5dd,f5bade10,0,f1668800,efbffefc) at _panic+0x5a
_vm_object_deallocate(f1669d00) at _vm_object_deallocate+0x22
_vm_map_delete(f1668800,0,efbfe000,f1668800,f1662e00) at _vm_map_delete+0x1c9
_vm_map_remove(f1668800,0,efbfe000,f1668864,0,efbfe000) at _vm_map_remove+0x76
_exit1(f1662e00,8a,f1662e00,f56b9128,efbfff8c) at _exit1+0x113
_sigexit(f1662e00,a,c,f1662e00,efbfffbc) at _sigexit+0x80
_postsig(a) at _postsig+0x8e
_trap(27,27,fffffffd,24f00,efbfdab8) at _trap+0x4bc
calltrap() at calltrap+0x15
--- trap 12, eip = 0x803de20, ebp = 0xefbfdab8 ---
db> panic
panic: from debugger

dumping to dev 401, offset 87216

...

[ preserving 0x2aa78 bytes of kernel symbol table ]
BIOS basemem (639K) != RTC basemem (640K), setting to BIOS value
Copyright (c) 1992-1996 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
	The Regents of the University of California.  All rights reserved.

FreeBSD 2.2-CURRENT #0: Mon Oct 14 14:03:26 PDT 1996
    pst@red.jnx.com:/a/src/sys/compile/JNX.debug
Calibrating clock(s) relative to mc146818A clock...
i586 clock: 132955552 Hz, i8254 clock: 1193193 Hz
CPU: Pentium (132.95-MHz 586-class CPU)
  Origin = "GenuineIntel"  Id = 0x52c  Stepping=12
  Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory  = 33554432 (32768K bytes)
avail memory = 30203904 (29496K bytes)
Probing for devices on PCI bus 0:
chip0 <Intel 82437FX PCI cache memory controller> rev 2 on pci0:0
chip1 <Intel 82371FB PCI-ISA bridge> rev 2 on pci0:7:0
chip2 <Intel 82371FB IDE interface> rev 2 on pci0:7:1
ahc0 <Adaptec 2940 SCSI host adapter> rev 3 int a irq 10 on pci0:13
ahc0: aic7870 Single Channel, SCSI Id=7, 16 SCBs
(ahc0:0:0): "QUANTUM FIREBALL1280S 630C" type 0 fixed SCSI 2
sd0(ahc0:0:0): Direct-Access 1222MB (2503872 512 byte sectors)
(ahc0:4:0): "SONY CD-ROM CD/dev/rsd0s2f: FREE BLK COUNT(S) WRONG IN SUPERBLK (SALVAGED)
/dev/rsd0s2f: BLK(S) MISSING IN BIT MAPS (SALVAGED)
/dev/rsd0s2f: SUMMARY INFORMATION BAD (SALVAGED)
/dev/rsd0s2f: CLEAN FLAG NOT SET IN SUPERBLOCK (FIXED)
/dev/rsd0s2f: 41341 files, 359889 used, 519430 free (5686 frags, 64218 blocks, 0.6% fragmentation)
/dev/rsd0s2e: CLEAN FLAG NOT SET IN SUPERBLOCK (FIXED)
/dev/rsd0s2e: 140 files, 990 used, 28737 free (113 frags, 3578 blocks, 0.4% fragmentation)
de0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet 208.197.169.238 netmask 0xffffff00 broadcast 208.197.169.255
	ether 00:00:c0:bf:0d:dc 
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
	inet 127.0.0.1 netmask 0xff000000 
add net 224.0.0.0: gateway 208.197.169.238
starting routing daemon: routed.
clearing /tmp
checking for core dump...savecore: reboot after panic: vm_object_deallocate: object deallocated too many times
savecore: system went down at Tue Oct 15 14:58:27 1996
savecore: /var/crash/bounds: No such file or directory
savecore: writing core to /var/crash/vmcore.0
 32768K 31744K 30720K 29696K 28672K 27648K 26624K 25600K 24576K 23552K 22528K 21504K 20480K 19456K 18432K 17408K 16384K 15360K 14336K 13312K 12288K 11264K 10240K  9216K  8192K  7168K  6144K  5120K  4096K  3072K  2048K  1024Ksavecore: writing kernel to /var/crash/kernel.0
recording kernel -c changes
starting system daemons: syslogd.
starting network daemons: tickadj ntpdate portmap ypbind mountd nfsd nfsiod amd inetd.
setting ldconfig path: /usr/lib /usr/lib/compat /usr/X11R6/lib /usr/local/lib
standard daemons: cron printer sendmail.
enabling FreeBSD/i386 options:.
configuring syscons:.
.
Local package startup: sshd xdm zhm.
starting local daemons:.