Missing stack trace on BUG

Go To Last Post
4 posts / 0 new
Author
Message
#1
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

on a soft lockup I now get output linke this:

[ 6626.064000] BUG: soft lockup - CPU#0 stuck for 61s! [dropbear:2178]

Instead of earlier I got a complete stracktrace when this happend.

Life's to short for waiting on slow CPU's

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I'll awnser myself.

I had changed somehow the kernel.printk value.

By setting it back to

kernel.printk = 4 1 1 7

I get my expected error repport.

I use sysctl. Is there any good guide to this settings? ( sysctl.conf )

Life's to short for waiting on slow CPU's

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

man 8 sysctl ;-)

-S.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Didn't find anything more there. ( I've written a script that sets all my options defined in sysctl.conf at boot )

Bu in the kernel I found some information guiding me:

n = 1 - 8
a b c d
a- console_loglevel: messages with a higher priority than
  this will be printed to the console
b- default_message_level: messages without an explicit priority
  will be printed with this priority
c- minimum_console_loglevel: minimum (highest) value to which
  console_loglevel can be set
d- default_console_loglevel: default value for console_loglevel

I have now changed it to:
kernel.printk = 6 1 1 7

Life's to short for waiting on slow CPU's