[Bug 41209] kernel oops after 2 hours

[LuisM]

Public bug reported:

Affects: linux-source-2.6.15 linux-image-2.6.15-21-686 (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed


Description:
at about 2 hours of using the system the kernel crashes the box with the
following error:

(/var/log/syslog)

Apr 24 17:17:01 unreal /USR/SBIN/CRON[4485]: (root) CMD (   run-parts --report /etc/cron.hourly)
Apr 24 17:21:38 unreal kernel: [4295080.304000] Unable to handle kernel paging request at virtual address 6c2f6169
Apr 24 17:21:38 unreal kernel: [4295080.304000]  printing eip:
Apr 24 17:21:38 unreal kernel: [4295080.304000] e1174389
Apr 24 17:21:38 unreal kernel: [4295080.304000] *pde = 00000000
Apr 24 17:21:38 unreal kernel: [4295080.304000] Oops: 0000 [#1]
Apr 24 17:21:38 unreal kernel: [4295080.304000] PREEMPT SMP
Apr 24 17:21:38 unreal kernel: [4295080.304000] Modules linked in: speedstep_lib cpufreq_userspace cpufreq_stats freq_table cpufreq_powersave cpufreq_ondemand cpufreq_conservative ipv6 dm_mod md_mod af_packet lp tsdev snd_mpu401 snd_mpu401_uart parport_pc snd_rawmidi snd_seq_device e100 mii parport analog gameport pcspkr rtc nvidia i2c_core floppy snd_intel8x0 snd_ac97_codec snd_ac97_bus psmouse snd_pcm_oss snd_mixer_oss serio_raw snd_pcm snd_timer snd soundcore snd_page_alloc hw_random shpchp pci_hotplug intel_agp agpgart evdev ext3 jbd ide_generic uhci_hcd usbcore ide_cd cdrom ide_disk piix generic thermal processor fan capability commoncap vga16fb vgastate fbcon tileblit font bitblit softcursor
Apr 24 17:21:38 unreal kernel: [4295080.304000] CPU:    0
Apr 24 17:21:38 unreal kernel: [4295080.304000] EIP:    0060:[pg0+550630281/1069192192]    Tainted: P      VLI
Apr 24 17:21:38 unreal kernel: [4295080.304000] EFLAGS: 00210a12   (2.6.15-21-686)
Apr 24 17:21:38 unreal kernel: [4295080.304000] EIP is at nvl_remove_alloc+0x28/0x4c [nvidia]
Apr 24 17:21:38 unreal kernel: [4295080.304000] eax: 6c2f6169   ebx: d13b7660 ecx: e134b660   edx: 6c2f6169
Apr 24 17:21:38 unreal kernel: [4295080.304000] esi: e134b758   edi: e134b660 ebp: e134b660   esp: ce51fcb0
Apr 24 17:21:38 unreal kernel: [4295080.304000] ds: 007b   es: 007b   ss: 0068
Apr 24 17:21:38 unreal kernel: [4295080.304000] Process fgfs (pid: 4555, threadinfo=ce51e000 task=ce218ab0)
Apr 24 17:21:38 unreal kernel: [4295080.304000] Stack: d13b7660 e11770ee e134b660 d13b7660 e11b9334 d13b7660 00000201 00000001
Apr 24 17:21:38 unreal kernel: [4295080.304000]        00020002 f8215000 dfa5c000 c6e27ea0 de134800 beef0003 ce51fd18 e0f1f725
Apr 24 17:21:38 unreal kernel: [4295080.304000]        e134b660 00000201 00000001 00000001 00000002 d13b7660 ce51fd48 e10ddf7b
Apr 24 17:21:38 unreal kernel: [4295080.304000] Call Trace:
Apr 24 17:21:38 unreal kernel: [4295080.304000]  [pg0+550641902/1069192192] nv_free_pages+0xd8/0x142 [nvidia]


I've used this system with debian before and I know that when PREEMPT is off in the kernel, the system is very stable.

Configuration:

$> profile-computer

#==============================================================================#
# profile-computer 1.17 Luis Mondesi <lemsx1 at gmail.com>
# http://lems.kiskeyix.org/toolbox/?f=profile-computer&d=1

#==============================================================================#
Host Name: unreal
System Kernel: Linux unreal 2.6.15-21-686 #1 SMP PREEMPT Fri Apr 21 16:57:03 UTC 2006 i686 GNU/Linux

#==============================================================================#
CPU Info: Pentium III (Coppermine)
Total Processors: 1
Bogomips total: 1595

#==============================================================================#
Memory: 514840 kB
Virtual Memory (swap): 843404 kB

#==============================================================================#
Host bridge: Intel Corporation 82815 815 Chipset Host Bridge and Memory Controller Hub (rev 02)
PCI bridge: Intel Corporation 82815 815 Chipset AGP Bridge (rev 02)
PCI bridge: Intel Corporation 82801 PCI Bridge (rev 02)
ISA bridge: Intel Corporation 82801BA ISA Bridge (LPC) (rev 02)
IDE interface: Intel Corporation 82801BA IDE U100 (rev 02)
USB Controller: Intel Corporation 82801BA/BAM USB (Hub #1) (rev 02)
SMBus: Intel Corporation 82801BA/BAM SMBus (rev 02)
USB Controller: Intel Corporation 82801BA/BAM USB (Hub #2) (rev 02)
Multimedia audio controller: Intel Corporation 82801BA/BAM AC'97 Audio (rev 02)
Ethernet controller: Intel Corporation 82801BA/BAM/CA/CAM Ethernet Controller (rev 01)
VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX/MX 400] (rev a1)
#==============================================================================#
Distributor ID:  Ubuntu
Distributor Release:  6.06
Distributor Codename:  dapper
Distributor Description:  Ubuntu (The Dapper Drake Release) Development Branch

#==============================================================================#
Library: libc6
Compiler Version: gcc (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)

#==============================================================================#
/proc/cmdline
root=/dev/hda1 ro quiet splash


#==============================================================================#

#==============================================================================#


I'm in the process of re-compiling the kernel without PREEMPT. I'm not sure if that will fix this issue.

-- 
kernel oops after 2 hours
https://launchpad.net/bugs/41209