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Date:      Tue, 11 Jun 2002 09:13:44 -0700
From:      Edwin Culp <eculp@encontacto.net>
To:        Sid Carter <sidcarter@symonds.net>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Kernel Panic and Automagic Reboots
Message-ID:  <1023812024.3d0621b85f97b@Mail.EnContacto.Net>
In-Reply-To: <20020611134308.GA346@calvin.in.ibm.com>
References:  <20020611134308.GA346@calvin.in.ibm.com>

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Quoting Sid Carter <sidcarter@symonds.net>:

| Hi,
| 
| Today my system rebooted twice automagically. This is what the message
| log shows.
| 
| --------------------------------------------------
| Jun 11 19:00:00 calvin kernel: /usr/src/sys/vm/uma_core.c:1327: could sleep
| with
|  "process lock" locked from /usr/src/sys/kern/kern_prot.c:511
| Jun 11 19:00:00 calvin kernel: /usr/src/sys/vm/uma_core.c:1327: could sleep
| with
|   "process lock" locked from /usr/src/sys/kern/kern_prot.c:613
| Jun 11 19:02:20 calvin kernel: Memory modified after free
| 0xd33f5900(252)
| Jun 11 19:02:20 calvin kernel: panic: Most recently used by kqueue
| Jun 11 19:02:20 calvin kernel:
| Jun 11 19:02:20 calvin kernel:
| Jun 11 19:02:20 calvin kernel: syncing disks... panic: bremfree: bp
| 0xc76431a0 n
| ot locked
| Jun 11 19:02:20 calvin kernel: Uptime: 6h1m9s
| Jun 11 19:02:20 calvin kernel: pfs_vncache_unload(): 1 entries remaining
| Jun 11 19:02:20 calvin kernel: Terminate ACPI
| Jun 11 19:02:20 calvin kernel: Automatic reboot in 15 seconds - press a
| key on t
| he console to abort
| Jun 11 19:02:20 calvin kernel: --> Press a key on the console to reboot,
| Jun 11 19:02:20 calvin kernel: --> or switch off the system now.
| Jun 11 19:02:20 calvin kernel: Rebooting...
| --------------------------------------------------
| 
| This has happened twice and more info about the compiled kernel is
| 
| --------------------------------------------------
| FreeBSD calvin 5.0-CURRENT FreeBSD 5.0-CURRENT #0: Mon Jun 10 13:55:43 IST
| 2002     root@calvin:/usr/obj/usr/src/sys/GENERIC  i386
| 
| Jun 11 19:02:20 calvin kernel: Timecounter "i8254"  frequency 1193182 Hz
| Jun 11 19:02:20 calvin kernel: Timecounter "TSC"  frequency 996769599 Hz
| Jun 11 19:02:20 calvin kernel: CPU: Pentium III/Pentium III Xeon/Celeron
| (996.77
| -MHz 686-class CPU)
| Jun 11 19:02:20 calvin kernel: Origin = "GenuineIntel"  Id = 0x68a
| Stepping = 1
| 0
| Jun 11 19:02:20 calvin kernel:
| Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE
| ,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
| Jun 11 19:02:20 calvin kernel: real memory  = 267255808 (260992K bytes)
| Jun 11 19:02:20 calvin kernel: avail memory = 253108224 (247176K bytes)
| --------------------------------------------------
| 
| Has anyone else encountered this ? Something wrong with my machine ?
| 

My laptop is rebooting with todays current/kernel in ifconfig.  I just
got it up with an old kernel and am checking now.  It will run with the
new kernel if I don't try to configure the network.  I may have something
wrong though.

ed

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