Red Hat Bugzilla – Bug 103591
kernel panic on smp machine
Last modified: 2007-04-18 12:57:19 EDT
Description of problem:
During boot process using the smp kernel, the kernel panics.
Last few lines before panic
Code 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
<0> Kernel panic: Attempted to kill the idle task!
In idle task - not syncing
Version-Release number of selected component (if applicable):
Or all of RedHat 9 kernel versions for smp
100% on any computer using the MSI 694D Pro2 mainboard
Steps to Reproduce:
1. Boot computer
2. Select smp kernel in grub
3. Sit back and watch it panic
This computer has dual 1GHz Pentium 3 processors on the MSI 694D Pro2 mainboard.
It boots fine using the single cpu kernel. RedHat 8 smp kernel ran fine on this
Fixed the problem. For some smp machines running RH9 you need to change the bus
speed and cpu clock speed to know values in the bios. For the above mainboards
the following settings must be made in the Frequency/Voltage Control part of the
"CPU Host Clock (CPU/PCI)" set to "133/33Mhz (Spd on)"
"CPU1 Clock Ratio" set to "x7.5"
"CPU2 Clock Ratio" set to "x7.5"
Then the smp kernel will load without any troubles.