Re: 2.6.12.3 Oops

Re: 2.6.12.3 Oops

[Andrew Burgess]

I said:
>Daniel Walker said:
>>You might want to enable slab debugging. Here's how,
>OK thanks. I think I'll also switch to 2.6.13rc4 just in case it's something that's
>already been fixed. Am compiling a slab debug 13rc4 now...

Which dies at boot before writing /var/log/messages. So I tried my slab debug
12.3 and of course I changed other things in the config (it was a generic
include-everything config so I trimmed some stuff out) and now its rock solid!  :-/

I don't have a copy of the ooopsing 12.3 config (I forgot to change the name
when I made the debugging one). Is it worth my looking at this or is 12.3
falling too far behind? I see 2.6.13rc5 is out now...

Re: 2.6.12.3 Oops

[Andrew Burgess]

Daniel Walker said:
>> Seems to be triggered by mplayer but not right away (30 minutes sometimes), sometimes
>> no mplayer is necessary.
>> 
>> This is a busy machine. There is continuous usb soundcard (3 soundcards) and
>> usb ethernet activity (news server and alot of downloading) and video is being
>> read continuously from the bt878 card.
>> 
>> Any suggestions for workarounds are greatly appreciated. I'm going to try running
>> with swap off and see if that helps.

>You might want to enable slab debugging. Here's how,

OK thanks. I think I'll also switch to 2.6.14rc4 just in case it's something that's
already been fixed. Am compiling a slab debug 2.6.14rc4 now...

Bodo Eggert said:
>Let me guess: A VIA mainboard?

ABIT IC7, sorry I should have mentioned it.

It happens even if I never run mplayer. The video capturing is what is new,
previously the system was pretty stable.

Re: 2.6.12.3 Oops

[Bodo Eggert]

Andrew Burgess <aab@cichlid.com> wrote:

> This is a busy machine. There is continuous usb soundcard (3 soundcards) and
> usb ethernet activity (news server and alot of downloading) and video is being
> read continuously from the bt878 card.
                             ^^^^^
Let me guess: A VIA mainboard?

If yes, check for files with the first four bytes replaces by garbage
while/after watching TV. If you find some, we've got the same problem.

> Any suggestions for workarounds are greatly appreciated. I'm going to try
> running with swap off and see if that helps.

The no_overlay module option might help, if it were actually implemented.
(I could not find reads from the corresponding variable.)
-- 
Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF
verbreiteten Lügen zu sabotieren.

Re: 2.6.12.3 Oops

[Daniel Walker]

On Mon, 2005-08-01 at 08:17 -0700, Andrew Burgess wrote:
> Stock 2.6.12.3 #2 Sun Jul 31 16:55:16 PDT 2005 i686 i686 i386 GNU/Linux
> 
> Seems to be triggered by mplayer but not right away (30 minutes sometimes), sometimes
> no mplayer is necessary.
> 
> This is a busy machine. There is continuous usb soundcard (3 soundcards) and
> usb ethernet activity (news server and alot of downloading) and video is being
> read continuously from the bt878 card.
> 
> Any suggestions for workarounds are greatly appreciated. I'm going to try running
> with swap off and see if that helps.

You might want to enable slab debugging. Here's how,

run "make menuconfig"
Select "Kernel hacking"

turn on "Kernel debugging"
and turn on "Debug memory allocations"

Daniel

2.6.12.3 Oops

[Andrew Burgess]

Stock 2.6.12.3 #2 Sun Jul 31 16:55:16 PDT 2005 i686 i686 i386 GNU/Linux

Seems to be triggered by mplayer but not right away (30 minutes sometimes), sometimes
no mplayer is necessary.

This is a busy machine. There is continuous usb soundcard (3 soundcards) and
usb ethernet activity (news server and alot of downloading) and video is being
read continuously from the bt878 card.

Any suggestions for workarounds are greatly appreciated. I'm going to try running
with swap off and see if that helps.

Please let me know of any debugging/testing that I can help you with.

Jul 31 17:35:41 cichlid kernel: Linux version 2.6.12.3 (root@athlon) (gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) #2 Sun Jul 31 16:55:16 PDT 2005
...
Jul 31 17:35:42 cichlid kernel: Kernel command line: ro root=LABEL=/ rhgb vga=791 pci=noacpi noapic acpi=ht
...
Jul 31 18:39:30 cichlid kernel: Unable to handle kernel paging request at virtual address 29262829
Jul 31 18:39:30 cichlid kernel:  printing eip:
Jul 31 18:39:30 cichlid kernel: c014788a
Jul 31 18:39:30 cichlid kernel: *pde = 00000000
Jul 31 18:39:30 cichlid kernel: Oops: 0002 [#1]
Jul 31 18:39:30 cichlid kernel: PREEMPT 
Jul 31 18:39:30 cichlid kernel: Modules linked in: emi26 ipt_TOS ipt_state vfat fat softdog ipt_REJECT ipt_MASQUERADE ipt_LOG ipt_multiport ip_nat_ftp ip_conntrack_ftp iptable_mangle iptable_nat ip_conntrack usb_storage ftdi_sio usbserial dsbr100 snd_seq_midi snd_seq_midi_event snd_seq parport_pc lp parport md5 ipv6 autofs4 sunrpc iptable_filter ip_tables loop dm_mod ohci1394 ieee1394 uhci_hcd ehci_hcd bt878 bttv video_buf v4l2_common btcx_risc tveeprom videodev nvidiafb i2c_algo_bit i2c_i801 i2c_core snd_usb_audio snd_usb_lib snd_ice1712 snd_ice17xx_ak4xxx snd_ak4xxx_adda snd_cs8427 snd_i2c snd_mpu401_uart snd_rawmidi snd_seq_device snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc kaweth usbnet mii floppy ext3 jbd ata_piix libata 3w_xxxx sd_mod scsi_mod
Jul 31 18:39:30 cichlid kernel: CPU:    0
Jul 31 18:39:30 cichlid kernel: EIP:    0060:[free_block+106/224]    Not tainted VLI
Jul 31 18:39:30 cichlid kernel: EIP:    0060:[<c014788a>]    Not tainted VLI
Jul 31 18:39:30 cichlid kernel: EFLAGS: 00010006   (2.6.12.3) 
Jul 31 18:39:30 cichlid kernel: EIP is at free_block+0x6a/0xe0
Jul 31 18:39:30 cichlid kernel: eax: 29262825   ebx: d67ad000   ecx: d67ad02c   edx: d0878000
Jul 31 18:39:30 cichlid kernel: esi: c19fc900   edi: 00000014   ebp: c194fe44   esp: c194fe2c
Jul 31 18:39:30 cichlid kernel: ds: 007b   es: 007b   ss: 0068
Jul 31 18:39:30 cichlid kernel: Process kswapd0 (pid: 85, threadinfo=c194e000 task=f7f81520)
Jul 31 18:39:30 cichlid kernel: Stack: c19fc91c 0000001b f7ce2690 f7ce2690 00000282 c19fc900 c194fe68 c014794b 
Jul 31 18:39:30 cichlid kernel:        f7dbdc00 d0878c6c 0000001b f7ce2680 f7ce2680 00000282 c55f456c c194fe7c 
Jul 31 18:39:30 cichlid kernel:        c0147b3d c55f4600 c194feb4 0000005c c194fe88 c0177da4 c55f4600 c194fe9c 
Jul 31 18:39:30 cichlid kernel: Call Trace:
Jul 31 18:39:30 cichlid kernel:  [show_stack+122/144] show_stack+0x7a/0x90
Jul 31 18:39:30 cichlid kernel:  [<c0103e5a>] show_stack+0x7a/0x90
Jul 31 18:39:30 cichlid kernel:  [show_registers+329/448] show_registers+0x149/0x1c0
Jul 31 18:39:30 cichlid kernel:  [<c0103fd9>] show_registers+0x149/0x1c0
Jul 31 18:39:30 cichlid kernel:  [die+221/368] die+0xdd/0x170
Jul 31 18:39:30 cichlid kernel:  [<c01041dd>] die+0xdd/0x170
Jul 31 18:39:30 cichlid kernel:  [do_page_fault+1102/1586] do_page_fault+0x44e/0x632
Jul 31 18:39:30 cichlid kernel:  [<c011804e>] do_page_fault+0x44e/0x632
Jul 31 18:39:30 cichlid kernel:  [error_code+79/84] error_code+0x4f/0x54
Jul 31 18:39:30 cichlid kernel:  [<c0103aab>] error_code+0x4f/0x54
Jul 31 18:39:30 cichlid kernel:  [cache_flusharray+75/192] cache_flusharray+0x4b/0xc0
Jul 31 18:39:30 cichlid kernel:  [<c014794b>] cache_flusharray+0x4b/0xc0
Jul 31 18:39:30 cichlid kernel:  [kmem_cache_free+61/80] kmem_cache_free+0x3d/0x50
Jul 31 18:39:30 cichlid kernel:  [<c0147b3d>] kmem_cache_free+0x3d/0x50
Jul 31 18:39:30 cichlid kernel:  [destroy_inode+84/96] destroy_inode+0x54/0x60
Jul 31 18:39:30 cichlid kernel:  [<c0177da4>] destroy_inode+0x54/0x60
Jul 31 18:39:30 cichlid kernel:  [dispose_list+31/144] dispose_list+0x1f/0x90
Jul 31 18:39:30 cichlid kernel:  [<c017809f>] dispose_list+0x1f/0x90
Jul 31 18:39:30 cichlid kernel:  [prune_icache+358/560] prune_icache+0x166/0x230
Jul 31 18:39:30 cichlid kernel:  [<c0178486>] prune_icache+0x166/0x230
Jul 31 18:39:30 cichlid kernel:  [shrink_icache_memory+23/64] shrink_icache_memory+0x17/0x40
Jul 31 18:39:30 cichlid kernel:  [<c0178567>] shrink_icache_memory+0x17/0x40
Jul 31 18:39:30 cichlid kernel:  [shrink_slab+253/352] shrink_slab+0xfd/0x160
Jul 31 18:39:30 cichlid kernel:  [<c014998d>] shrink_slab+0xfd/0x160
Jul 31 18:39:30 cichlid kernel:  [balance_pgdat+601/928] balance_pgdat+0x259/0x3a0
Jul 31 18:39:30 cichlid kernel:  [<c014ae19>] balance_pgdat+0x259/0x3a0
Jul 31 18:39:30 cichlid kernel:  [kswapd+220/304] kswapd+0xdc/0x130
Jul 31 18:39:30 cichlid kernel:  [<c014b03c>] kswapd+0xdc/0x130
Jul 31 18:39:30 cichlid kernel:  [kernel_thread_helper+5/16] kernel_thread_helper+0x5/0x10
Jul 31 18:39:30 cichlid kernel:  [<c0101355>] kernel_thread_helper+0x5/0x10
Jul 31 18:39:30 cichlid kernel: Code: 1c 89 43 04 47 3b 7d ec 7d 77 8b 45 f0 8b 15 f0 76 43 c0 8b 0c b8 8d 81 00 00 00 40 c1 e8 0c c1 e0 05 8b 5c 10 1c 8b 53 04 8b 03 <89> 50 04 89 02 8b 43 0c c7 03 00 01 10 00 31 d2 c7 43 04 00 02 
Jul 31 18:39:31 cichlid kernel:  <6>note: kswapd0[85] exited with preempt_count 1

cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 2
model name      : Intel(R) Pentium(R) 4 CPU 2.60GHz
stepping        : 9
cpu MHz         : 2594.440
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 pbe cid xtpr
bogomips        : 5144.57