IO APIC error
Hello,
I am investigating spontaneous hangups of one of our machines and have found this error in messages log after rebooting. Can you explain?
Feb 4 16:19:01 deimos kernel: testing the IO APIC....................... Feb 4 16:19:01 deimos kernel: Feb 4 16:19:01 deimos kernel: WARNING: unexpected IO-APIC, please mail Feb 4 16:19:01 deimos kernel: to [email protected] Feb 4 16:19:01 deimos kernel: .................................... done
The machine is running dual Intel processors and kernel 2.4.10.
Thanks,
Bryan
Quoted 5 lines · Bryan Yeung
Hello,
I am investigating spontaneous hangups of one of our machines and have found this error in messages log after rebooting. Can you explain?
Quoted 7 lines
Feb 4 16:19:01 deimos kernel: testing the IO APIC....................... Feb 4 16:19:01 deimos kernel: Feb 4 16:19:01 deimos kernel: WARNING: unexpected IO-APIC, please mail Feb 4 16:19:01 deimos kernel: to [email protected] Feb 4 16:19:01 deimos kernel: .................................... doneThe machine is running dual Intel processors and kernel 2.4.10.
Firstly upgrade the kernel to 2.4.18/19/20. I'm not saying it will fix your hang but many many bugs have been fixed. In addition the newer kernels know a lot more APIC types. The message is actually unlikely to be the cause. With the exception of SiS we support pretty much all APIC setups. SiS APIC right now requires 2.5 and some VIA APIC requires a 2.4.21-ac test patch.
One thing 2.4.10 doesn't handle is dual pentium IV.