Date: Wed, 19 Sep 2001 19:53:06 +1000 (EST) From: Tony Maher <tonym@biolateral.com.au> To: stable@freebsd.org Subject: (random?) panics with 4.4-RC Message-ID: <200109190953.f8J9r6L37449@dt.home>
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Since moving to 4.4 I have had a number of crashes (4 or 5, normally only see
every few months) on my laptop a Dell Inspiron 3500.
There does not seem to be any pattern but this last one was several minutes
after it had resumed (normally not a problem). Only thing I was doing was
composing an email message (using vi).
> uname -a
FreeBSD dt.home 4.4-RC FreeBSD 4.4-RC #13: Fri Sep 14 21:28:38 EST 2001
root@dt.home:/usr/obj/usr/src/sys/DT i386
Here is output from dmesg
....
sio4: type 16550A
sio4: unable to activate interrupt in fast mode - using normal mode
ed0 at port 0x240-0x25f irq 11 slot 0 on pccard0
ed0: address 00:80:c8:8f:29:aa, type NE2000 (16 bit)
panic: Removing other than first element
syncing disks...
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x30
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0268b7c
stack pointer = 0x10:0xc036bd08
frame pointer = 0x10:0xc036bd10
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 = Idle
interrupt mask = bio
trap number = 12
panic: page fault
Uptime: 1d12h56m31s
dumping to dev #ad/0x20001, offset 786560
dump ata0: resetting devices .. done
Following handbook advice on debugging the crash I get limited info:
This GDB was configured as "i386-unknown-freebsd".
(kgdb) symbol kernel.debug
Reading symbols from kernel.debug...done.
(kgdb) exec-file /var/crash/kernel.6
(kgdb) core-file /var/crash/vmcore.6
IdlePTD 0
initial pcb at 3b6140
panic messages:
---
dmesg: kvm_read: invalid address (c03ad0f8)
---
#0 0x0 in ?? ()
(kgdb) where
#0 0x0 in ?? ()
(kgdb) list
1 /* THIS FILE IS GENERATED, DO NOT EDIT. */
2
3 #define DEFINE_SET(set, count) \
4 __asm__(".section .set." #set ",\"aw\""); \
5 __asm__(".globl " #set); \
6 __asm__(".type " #set ",@object"); \
7 __asm__(".p2align 2"); \
8 __asm__(#set ":"); \
9 __asm__(".long " #count); \
10 __asm__(".previous")
I do use mount_null (and have since around Jun 30) but these crashes
are only in the last 2-3 weeks.
Does this mean anything to anyone? Anything else I can do?
thanks
tonym
do use mount_null (and have since around Jun 30) but these crashes
are only in the last 2-3 weeks.
Does this mean anything to anyone? Anything else I can do?
thanks
tonym
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