lkml.org 
[lkml]   [2005]   [Jun]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[2.6.12] x86-64 IO-APIC + timer doesn't work
Date
Hi,

I upgraded my nForce3 x86-64 desktop from 2.6.12-rc5 to 2.6.12 today and
something strange started happening. Waay back in 2.6.x I had problems with
the "noapic" default for nForce boards on x86-64, and so used the "apic"
kernel boot parameter to force the apic on; this worked successfully for a
long time with no timer problems.

However, as of 2.6.12 (maybe -rc6, too?) my desktop occasionally fails to boot
with the message:

"IO-APIC + timer doesn't work! Try using the 'noapic' kernel parameter."
(arch/x86_64/kernel/io_apic.c)

However, this message is intermittent; it is sometimes possible to boot
without getting it, and everything works fine. So I took its advice and ran
with noapic, and everything seems fine now.

However, I just thought I'd let whoever maintains this bit of code know that
the check isn't a "sure thing": it's not being flagged reliably. Whether this
is my BIOS or the kernel, I don't know.

Though I clearly don't require this functionality any more, is there any
reason I now can't use apic on this nForce3 board, where previously (on
2.6.12-rc5 and older) I could?

--
Cheers,
Alistair.

personal: alistair()devzero!co!uk
university: s0348365()sms!ed!ac!uk
student: CS/CSim Undergraduate
contact: 1F2 55 South Clerk Street,
Edinburgh. EH8 9PP.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-06-18 15:55    [W:0.057 / U:20.460 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site