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
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