Date: Wed, 29 Mar 2000 05:17:10 +0100 (BST) From: Jasper Wallace <jasper@ivision.co.uk> To: freebsd-stable@freebsd.org Cc: Nick Ludlam <nick@ivision.co.uk>, sysadmin@ivision.co.uk Subject: Repeted panics with 3.4 Message-ID: <Pine.GSO.4.21.0003290507040.18891-200000@avengers.ivision.co.uk>
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We've got a pair of rackmount webservers, both running 3.4, one has been
fine, the other has just started panic's soon after boot, normally
associated with file system access - i've seen it when trying to mount a
file sys, when trying to run a peice of software amd when doing 'viunm
start':
here is one of the panics: (cut and pasted, the machine has a serial
console).
------------------------------------------------------------------------
# mount /usr/local
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x56204e49
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc014b2b8
stack pointer = 0x10:0xd1bfecb4
frame pointer = 0x10:0xd1bfecd8
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 = 57 (mount)
interrupt mask = net tty bio cam
trap number = 12
panic: page fault
syncing disks... done
Automatic reboot in 15 seconds - press a key on the console to abort
Rebooting...
------------------------------------------------------------------------
All the panics have been at instruction pointer 0x8:0xc014b2b8, running nm
on the kernel gives:
# nm /kernel | sort | grep c014b
c014b038 T malloc
c014b038 t gcc2_compiled.
c014b348 T free
c014b488 t kmeminit
Which dosn't make much sense to me...
questions:
these machines have ecc ram - if the ram fails the ecc checks what does
freebsd do? whould it panic as above?
Is this some irq masking/spl thing caused by using a serial console? (i.e.
is our use of a serial console sufficienty unusual that we are walking
into a less tested area?)
dmesg attached.
--
Internet Vision Internet Consultancy Tel: 0171 589 4500
60 Albert Court & Web development Fax: 0171 589 4522
Prince Consort Road vision@ivision.co.uk
London SW7 2BE http://www.ivision.co.uk/
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