lkml.org 
[lkml]   [2003]   [Apr]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectDebugging hard lockups (hardware?)
Dear team,

This machine locks up solid every few days. Caps Lock, Num Lock, Scroll Lock do
not respond. The NMI watchdog does not kick in. Alt-SysRq-keys do not
respond. Logs show no hint of any problem (that I recognise) before lockup.
Occurs often during scrolling e.g., Mozilla. I swapped the Radeon 7000 for a
7500, then an Nvidia.

I guess hardware. But memtest run exhaustively shows no problem.

Same is true for large numbers of kernels I've tried, mostly Red Hat and -ac
kernels, old and new.

current grub kernel line:
kernel /boot/vmlinuz-2.4.20-8custom ro root=LABEL=/ vga=6 console=ttyS0,38400
nmi_watchdog=1 hdm=ide-scsi

I have six 80 G IDE disks, software RAID, LVM on top. On Red Hat 8.0 and 9.

Any hints on how to troubleshoot this (besides replacing motherboard and other
components I cannot afford to replace?)

$ cat /proc/mdstat
Personalities : [raid1] [raid5]
read_ahead 1024 sectors
md0 : active raid1 hdc1[1] hda1[0]
10240128 blocks [2/2] [UU]

md2 : active raid5 hdk1[3] hdi1[2] hdg1[1] hde1[0]
20480256 blocks level 5, 64k chunk, algorithm 2 [3/3] [UUU]

md1 : active raid5 hdk2[5] hdi2[4] hdg2[2] hde2[3] hdc2[1] hda2[0]
4088064 blocks level 5, 64k chunk, algorithm 2 [5/5] [UUUUU]

md3 : active raid5 hdk3[6] hdi3[4] hdg3[3] hde3[2] hdc3[1] hda3[0]
267514112 blocks level 5, 64k chunk, algorithm 2 [5/5] [UUUUU]

unused devices: <none>
$ lspci
00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge (rev
11)
00:01.0 PCI bridge: Intel Corp. 82845 845 (Brookdale) Chipset AGP Bridge (rev
11)
00:1d.0 USB Controller: Intel Corp. 82801DB USB (Hub #1) (rev 01)
00:1d.1 USB Controller: Intel Corp. 82801DB USB (Hub #2) (rev 01)
00:1d.2 USB Controller: Intel Corp. 82801DB USB (Hub #3) (rev 01)
00:1d.7 USB Controller: Intel Corp. 82801DB USB EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev 81)
00:1f.0 ISA bridge: Intel Corp. 82801DB ISA Bridge (LPC) (rev 01)
00:1f.1 IDE interface: Intel Corp. 82801DB ICH4 IDE (rev 01)
01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX/MX 400]
(rev b2)
02:03.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
02:04.0 FireWire (IEEE 1394): NEC Corporation: Unknown device 00f2 (rev 01)
02:08.0 Ethernet controller: Intel Corp. 82801BD PRO/100 VE (LOM) Ethernet
Controller (rev 81)
02:0a.0 RAID bus controller: CMD Technology Inc PCI0680 (rev 01)
02:0b.0 RAID bus controller: CMD Technology Inc PCI0680 (rev 01)
02:0c.0 SCSI storage controller: Advanced Micro Devices [AMD] 53c974 [PCscsi]
(rev 10)
02:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS)
02:0e.0 RAID bus controller: CMD Technology Inc PCI0649 (rev 02)
$ lsmod
Module Size Used by Not tainted
nls_iso8859-1 3516 1 (autoclean)
cmpci 35464 1 (autoclean)
soundcore 6436 4 (autoclean) [cmpci]
ppp_deflate 4504 2 (autoclean)
zlib_deflate 21624 0 (autoclean) [ppp_deflate]
osst 48072 0 (autoclean) (unused)
st 30736 0 (autoclean) (unused)
usb-storage 68276 0 (unused)
binfmt_misc 7400 1
parport_pc 19108 1 (autoclean)
lp 8996 0 (autoclean)
parport 36960 1 (autoclean) [parport_pc lp]
nfsd 79920 8 (autoclean)
lockd 58128 1 (autoclean) [nfsd]
sunrpc 81372 1 (autoclean) [nfsd lockd]
autofs 13108 1 (autoclean)
n_hdlc 8000 1
ppp_synctty 7840 1
ppp_async 9376 1
ppp_generic 24540 6 [ppp_deflate ppp_synctty ppp_async]
slhc 6628 1 [ppp_generic]
ne2k-pci 7168 1 (autoclean)
8390 8364 0 (autoclean) [ne2k-pci]
e100 63908 1
ipt_multiport 1176 5 (autoclean)
ipt_REJECT 3832 2 (autoclean)
ipt_limit 1560 2 (autoclean)
ipt_MASQUERADE 2136 3 (autoclean)
iptable_filter 2412 1 (autoclean)
ipt_LOG 4248 11
ipt_state 1080 23
ip_nat_ftp 4016 0 (unused)
ip_conntrack_ftp 5264 1
iptable_nat 20824 2 [ipt_MASQUERADE ip_nat_ftp]
ip_conntrack 26976 3 [ipt_MASQUERADE ipt_state ip_nat_ftp
ip_conntrack_ftp iptable_nat]
ip_tables 14840 10 [ipt_multiport ipt_REJECT ipt_limit
ipt_MASQUERADE iptable_filter ipt_LOG ipt_state iptable_nat]
sg 35820 0 (autoclean)
sr_mod 17912 0 (autoclean)
ide-scsi 12176 0
ide-cd 35580 0
cdrom 33120 0 [sr_mod ide-cd]
loop 12056 3 (autoclean)
keybdev 2976 0 (unused)
mousedev 5460 1
hid 21956 0 (unused)
input 5888 0 [keybdev mousedev hid]
usb-uhci 26188 0 (unused)
usbcore 78272 2 [usb-storage hid usb-uhci]
ext3 69760 11
jbd 51828 11 [ext3]
tmscsim 37088 0
sd_mod 13484 0 (unused)
scsi_mod 106872 7 [osst st usb-storage sg sr_mod ide-scsi tmscsim
sd_mod]
$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.26GHz
stepping : 4
cpu MHz : 2289.252
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 4561.30

$ free
total used free shared buffers cached
Mem: 1030780 1020180 10600 0 158692 633092
-/+ buffers/cache: 228396 802384
Swap: 4088056 31020 4057036
$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/md0 10079212 5805256 3761952 61% /
none 515388 0 515388 0% /dev/shm
/dev/main/home 2873984 814604 1913564 30% /home
/dev/main/usr 10321208 5762360 4034560 59% /usr
/dev/main/var 3201076 1168292 1870176 39% /var
/dev/main/var2 24520572 5211756 18063224 23% /var2
/dev/main/nicku 55734652 27123980 26345748 51% /home/nicku
/dev/main/photos 46445552 28598296 15487960 65% /home/nicku/.photos
/dev/main/mail 8256952 5107616 2729908 66% /home/nicku/work/nsmail
/dev/main/ftp 98051740 77431664 15639340 84% /var/ftp
/dev/main/mp3 10321208 8117692 1679228 83% /mp3
/dev/main/cdimage 23738812 18602584 4171540 82% /cdimage
/$ sudo hdparm -tT /dev/md{0,1,2,3}

/dev/md0:
Timing buffer-cache reads: 128 MB in 0.36 seconds =355.56 MB/sec
Timing buffered disk reads: 64 MB in 1.67 seconds = 38.32 MB/sec

/dev/md1:
Timing buffer-cache reads: 128 MB in 0.37 seconds =345.95 MB/sec
Timing buffered disk reads: 64 MB in 0.77 seconds = 83.12 MB/sec

/dev/md2:
Timing buffer-cache reads: 128 MB in 0.35 seconds =365.71 MB/sec
Timing buffered disk reads: 64 MB in 1.31 seconds = 48.85 MB/sec

/dev/md3:
Timing buffer-cache reads: 128 MB in 0.35 seconds =365.71 MB/sec
Timing buffered disk reads: 64 MB in 21.93 seconds = 2.92 MB/sec
(last horribly. slow; get zillions of lines in syslog saying stuff like:
Apr 6 14:08:50 nicksbox kernel: raid5: switching cache buffer size, 0 --> 4096
Apr 6 14:08:50 nicksbox kernel: raid5: switching cache buffer size, 0 --> 1024
Apr 6 14:08:50 nicksbox kernel: raid5: switching cache buffer size, 1024 -->
4096
Apr 6 14:08:50 nicksbox kernel: raid5: switching cache buffer size, 0 --> 1024
Apr 6 14:08:50 nicksbox kernel: raid5: switching cache buffer size, 1024 -->
4096
Apr 6 14:08:50 nicksbox kernel: raid5: switching cache buffer size, 0 --> 4096
Apr 6 14:08:50 nicksbox last message repeated 2 times
Apr 6 14:08:50 nicksbox kernel: raid5: switching cache buffer size, 4096 -->
1024
does not occur like that with RH 2.4.18-x kernels)

Any pointers to web sites, information that may help, any hints, suggestions,
ideas,... all most welcome. Actually, if replacing the motherboard would fix
it, I'd do it, but I cannot guess why it should help; Asus motherboards have
always been good to me before.

--
Nick Urbanik RHCE nicku@vtc.edu.hk
Dept. of Information & Communications Technology
Hong Kong Institute of Vocational Education (Tsing Yi)
Tel: (852) 2436 8576, (852) 2436 8713 Fax: (852) 2436 8526
PGP: 53 B6 6D 73 52 EE 1F EE EC F8 21 98 45 1C 23 7B ID: 7529555D
GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:34    [W:0.120 / U:0.388 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site