I've been using FC for at least a year now and have been very happy with it. However, every kernel since the 2.6.10-1.770 I've found to be very unstable. Even the most recent kernel (2.6.12-1.1372_FC3) crashed last night while I was rsync'ing some data on. The 2.6.10-1.770 is VERY stable and my systems stays up for months on end.
I have found the problem appears to be related to IO load. If I don't do anything on the system, it remains up for a few days. Then I get "confident" and try to do some IO (rsync a few GB onto the machine) and then it crashes.
I've enabled sysrq, put the logging to 9 (alt-sysrq-9) but am unable to get any useful logging (it all scrolls off the screen). The kernel really locks up. I can't alt-sysrq-t, alt-sysrq-s or alt-sysrq-u and I spend a fair amount of time on reboot rebuilding the raid devices. I don't get anything in /var/log/messages, just notificate of the reboot.
I'm very concerned about upgrading to FC4 and would like to ensure that the kernels are stable before the move. Nothing like continued rebuilding of raid devices to discourage an upgrade
The only funny hardware I've got is an ITE8212 raid card, but the linux drivers have been so flaky for it that I have nothing connected to it. I have nothing connected to the usb or firewire. I don't have any parallel port devices.
Does anyone have a similar experience? Any ideas?
Thanks
Stu.
Following are details of my system:
gem:~ # uname -a
Linux gem 2.6.10-1.770_FC3 #1 Thu Feb 24 14:00:06 EST 2005 i686 i686 i386 GNU/Linux
gem:~ # lsmod
Module Size Used by
md5 4033 1
ipv6 231681 18
ipt_REJECT 6593 1
ipt_LOG 6465 1
ipt_recent 13005 3
ipt_state 1857 25
ip_conntrack 40309 1 ipt_state
iptable_filter 3521 1
ip_tables 16321 5 ipt_REJECT,ipt_LOG,ipt_recent,ipt_state,iptable_fi lter
microcode 6497 0
reiserfs 228117 4
video 15813 0
button 6609 0
battery 9285 0
ac 4805 0
ohci_hcd 23765 0
ehci_hcd 32585 0
natsemi 29729 0
floppy 57841 0
it821x 8005 0 [permanent]
ext3 116297 2
jbd 69977 1 ext3
raid5 24257 1
xor 13641 1 raid5
raid1 18753 3
dm_mod 55637 5
gem:~ # cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Celeron(R) CPU 2.40GHz
stepping : 9
cpu MHz : 2395.013
cache size : 128 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 mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
bogomips : 4751.36
gem:~ # cat /proc/mdstat
Personalities : [raid1] [raid5]
md1 : active raid1 hdc2[1] hdb2[0]
987904 blocks [2/2] [UU]
md2 : active raid1 hdd2[1] hda2[0]
987904 blocks [2/2] [UU]
md3 : active raid5 hdd5[3] hdc5[2] hdb5[0] hda5[1]
465587328 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]
md0 : active raid1 hdd1[0] hdc1[1] hdb1[2] hda1[3]
104320 blocks [4/4] [UUUU]
unused devices: <none>
gem:~ # lspci
00:00.0 Host bridge: ATI Technologies Inc Radeon 9100 IGP Host Bridge (rev 02)
00:01.0 PCI bridge: ATI Technologies Inc Radeon 9100 IGP AGP Bridge
00:13.0 USB Controller: ATI Technologies Inc OHCI USB Controller #1 (rev 01)
00:13.1 USB Controller: ATI Technologies Inc OHCI USB Controller #2 (rev 01)
00:13.2 USB Controller: ATI Technologies Inc EHCI USB Controller (rev 01)
00:14.0 SMBus: ATI Technologies Inc ATI SMBus (rev 18)
00:14.1 IDE interface: ATI Technologies Inc: Unknown device 4349
00:14.3 ISA bridge: ATI Technologies Inc: Unknown device 434c
00:14.4 PCI bridge: ATI Technologies Inc: Unknown device 4342
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon 9100 IGP
02:06.0 RAID bus controller: Integrated Technology Express, Inc. IT/ITE8212 Dual channel ATA RAID controller (PCI version seems to be IT8212, embedded seems (rev 11)
02:09.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller
Linear Mode
