Hi,
Our main user-facing Linux machine at work crashed a couple of times over the
last few days, both with the same error. It's been up and stable for the last
80ish days (from when it was upgraded to Debian sarge), and had no problems
before that with the same kernel.
Machine is an HP DL740 with four Xeon 2Ghz CPUs and 4Gb RAM (5Gb RAID 5).
I've put both outputs that our console logger saved, and the result from running
them through ksymoops, at http://www.le.ac.uk/cc/mcn4/problem/
I realise the kernel is tainted. It's a locally compiled Debian kernel. I think
the non-free module is the qla SAN card driver, but I'm not sure (is there a way
of finding out what exactly tainted the kernel?)
The strange thing is that both times it seemed to crash in cfi_probe, which
looks like something to do with Compact Flash / MTDs. Something we don't use.
Unfortunately the machine is in constant use, so it's probably going to be
difficult to do things to investigate this, unless it crashes again. I'll try
and get output from different sysrq-type things next time, too.
However, any ideas where I can look further to work out what caused this?
Thanks!
Matthew
uname -a:
Linux falcon 2.4.27-686-smp-uol1 #1 SMP Thu Apr 21 12:45:26 BST 2005 i686
GNU/Linux
The first oops was:
Dec 4 07:33:45 falcon kernel: Unable to handle kernel NULL pointer dereference
at virtual address 00000004
Dec 4 07:33:45 falcon kernel: printing eip:
Dec 4 07:33:45 falcon kernel: f8934bc4
Dec 4 07:33:45 falcon kernel: *pde = 18d3e001
Dec 4 07:33:45 falcon kernel: *pte = 00000000
Dec 4 07:33:45 falcon kernel: Oops: 0002
Dec 4 07:33:45 falcon kernel: CPU: 1
Dec 4 07:33:45 falcon kernel: EIP:
0010:[cfi_probe:__insmod_cfi_probe_O/lib/modules/2.4.27-686-smp-uol1/kernel+-3015740/96]
Tainted: P
Dec 4 07:33:45 falcon kernel: EFLAGS: 00010202
Dec 4 07:33:45 falcon kernel: eax: 00000000 ebx: f8bb0068 ecx: f8b81c90
edx: 00000000
Dec 4 07:33:45 falcon kernel: esi: 00150400 edi: c63db200 ebp: 00000805
esp: dfc31d40
Dec 4 07:33:45 falcon kernel: ds: 0018 es: 0018 ss: 0018
Dec 4 07:33:45 falcon kernel: Process cortex.3.5.4 (pid: 18691,
stackpage=dfc31000)
Dec 4 07:33:45 falcon kernel: Stack: c63db200 c63db370 f6bd5970 00400000
00000080 00000007 00000060 00000000
Dec 4 07:33:45 falcon kernel: f89316d1 dfc31d9e dfc31da0 00150180
c63db200 00003a02 dccbc1a0 001402e0
Dec 4 07:33:45 falcon kernel: 00400000 ed16ee60 001002e0 f6bd5800
f6bd4000 00150180 00000140 08050000
Dec 4 07:33:45 falcon kernel: Call Trace:
[cfi_probe:__insmod_cfi_probe_O/lib/modules/2.4.27-686-smp-uol1/kernel+-3029295/96]
[cfi_probe:__insmod_cfi_probe_O/lib/modules/2.4.27-686-smp-uol1/kernel+-3029065/96]
[generic_make_request+288/304] [submit_bh+86/224] [sync_page_buffers+148/172]
Dec 4 07:33:45 falcon kernel: [try_to_free_buffers+294/332]
[try_to_release_page+68/72] [shrink_cache+557/1060] [shrink_caches+60/72]
[try_to_free_pages_zone+100/240] [balance_classzone+72/456]
Dec 4 07:33:45 falcon kernel: [__alloc_pages+396/652] [_alloc_pages+22/24]
[__get_free_pages+10/24] [__pollwait+51/144] [tcp_poll+46/348] [sock_poll+35/40]
Dec 4 07:33:45 falcon kernel: [do_select+272/516] [sys_select+810/1132]
[system_call+51/56]
Dec 4 07:33:45 falcon kernel:
Dec 4 07:33:45 falcon kernel: Code: 89 42 04 89 10 c7 01 00 00 00 00 c7 41 04
00 00 00 00 8b 03
modules:
Module Size Used by Tainted: P
lp 6048 0 (unused)
parport 24320 0 [lp]
ipt_REJECT 3584 1 (autoclean)
ipt_state 672 18 (autoclean)
iptable_filter 1824 1 (autoclean)
ip_tables 11904 3 [ipt_REJECT ipt_state iptable_filter]
fan 1612 0 (unused)
ac 1868 0
battery 6060 0 (unused)
ext2 46592 8 (autoclean)
cfi_probe 4896 0 (autoclean)
gen_probe 1824 0 (autoclean) [cfi_probe]
chipreg 972 0 [cfi_probe]
usb-ohci 19424 0 (unused)
usbcore 58944 1 [usb-ohci]
cpqphp 66884 0 (unused)
pci_hotplug 16024 1 [cpqphp]
md 57248 0 (autoclean) (unused)
loop 8976 0 (autoclean)
dm-mod 44268 0 (unused)
quota_v2 6392 2
thermal 6896 0
processor 9088 0 [thermal]
button 2744 0 (unused)
ip_conntrack_ftp 3936 0 (unused)
ip_conntrack_amanda 1504 0 (unused)
ip_conntrack 21460 2 [ipt_state ip_conntrack_ftp ip_conntrack_amanda]
bcm5700 102532 1
rtc 6620 0 (autoclean)
ext3 76864 16 (autoclean)
jbd 40696 16 (autoclean) [ext3]
lvm-mod 59872 49 (autoclean)
sd_mod 11004 48 (autoclean)
qla2300_conf 300832 0 (autoclean)
qla2300 567296 24
unix 16164 867 (autoclean)
cciss 56224 6 (autoclean)
scsi_mod 96060 2 (autoclean) [sd_mod qla2300 cciss]
--
Matthew
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