Blinking Keyboard LED after crash?

Blinking Keyboard LED after crash?

[Jan-Hinnerk Reichert]

Hi,

I have had some total crashes on my box without any output to console. The 
kernel just started to blink CapsLock and ScrollLock LEDs.

I wasn't able to find any documentation to these error-codes.

I'm using 2.4.19 on an i386 architecture:

CPU: K5PR166
Chipset: PIIX3

I will post more information, if needed.

I just found out that I use the wrong gcc-version 2.95.2 instead of 2.95.3, so 
the error will perhaps go away after recompilation.

But I'm still curious about these errorcodes.

Thanks in advance
 Jan-Hinnerk

2.4.19: network related kernel panic (was: Blinking Keyboard LED after crash?)

[Jan-Hinnerk Reichert]

Hi,

first thanks for all replies.

I have just had another identical kernel crash with kernel compiled with 
gcc-2.95.3 as it comes with SuSE 7.3

This time I got an error on console (I switched with Alt-F10 before the 
crash).

The error was an "divide error" in kfree. This was called via some functions 
from rtl8139_start_xmit (8139too.c).
Other functions involved are from
- qdisc (I use CBQ, SFQ)
- ip forward
- netfilter
- 802.1d Ethernet Bridging

The package that triggers this error is most likely coming from an DSL-modem 
over (kernel based PPPoE, pppd 2.4.1), in that case CBQ is not involved (only 
SFQ)

System:
 CPU: AMD K5PR166
 Chipset: Intel HX

My network configuration:
 eth1: RTL 8139 <-> DSL-Modem
 br0: (802.1d Ethernet Bridge)
   eth0: RTL-8029 (PCI NE2000) <-> three computers over Coax
   eth2: RTL-8139 <-> Single other computer

Kernel:
 No modules. 
 No experimental options except for PPPoE
 Memory mapped I/O for network

Has anyone experienced similar difficulties?
Has anyone a clue what it could be?
Is a hardware failure likely?
Should I post more information (complete call-trace, kernel-config, 
netfilter-rules)?

For now I have disabled CBQ and SFQ to narrow the error, but it could be weeks 
until the next crash (or perhaps it crashes before I can send this mail)

Any ideas, pointers, patches appreciated
 Jan-Hinnerk

Re: Blinking Keyboard LED after crash?

[bill davidsen]

In article <200210080200.03756.jan-hinnerk_reichert@hamburg.de>,
Jan-Hinnerk Reichert  <jan-hinnerk_reichert@hamburg.de> wrote:
| Hi,
| 
| I have had some total crashes on my box without any output to console. The 
| kernel just started to blink CapsLock and ScrollLock LEDs.
| 
| I wasn't able to find any documentation to these error-codes.

Perhaps your kernel is compiled with the option to report problems on
the lights in morse code. No, that's not a joke...
-- 
bill davidsen <davidsen@tmr.com>
  CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.