On Sun, May 06, 2001 at 03:50:29AM -0700, Joseph Carter wrote:
> Can anyone think of a reason why APIC may or may not affect stability of
> DRI on some/any AGP cards? APIC is a SMPism, but several new boards offer
> it even for uniprocessor systems and I've always used it when available.
It works here 'just fine' with APIC and IO-APIC enabled -
o kernel 2.4.4-ac5
o mobo KT7A-RAID (KT133A, or VT82C686b/VT8363/8365)
o NB: The only funny things start happening if I reboot to
win 98. And then back - to linux. Now linux unstable ...
Reset bios (clear cmos) - now everything just fine ...
and here is relevant dmesg output :
On node 0 totalpages: 131056
zone(0): 4096 pages.
zone(1): 126960 pages.
zone(2): 0 pages.
Local APIC disabled by BIOS -- reenabling.
Found and enabled local APIC!
Kernel command line: auto BOOT_IMAGE=vmlinuz ro root=302
....
POSIX conformance testing by UNIFIX
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 850.0274 MHz.
..... host bus clock speed is 200.0064 MHz.
cpu: 0, clocks: 2000064, slice: 1000032
CPU0<T0:2000064,T1:1000032,D:0,S:1000032,C:2000064>
>
> I'm wondering if this could possibly have anything to do with my Radeon
> and KT7A problems. The board works fine with other AGP cards (TNT2 and
> Voodoo3 (which almost doesn't count) tested) and the Radeon works in other
> boards (VIA/Intel, Intel/Intel) plus has been reported to work with other
> KT133A based systems - I don't know if the person in question has a KT7A
> or not.
>
> It's recently dawned on me that using APIC opens me up to certain SMP
> kernel bugs and I have no idea if I might have found one or not. I'd
> rather not willfully crash the box again if I can help it, which I hope is
> understandable, but if there's a real shot of it helping, I can try
> turning it off.
I doubt it has something to do this APIC or IO-APIC at all :(((
AGP ? maybe ...
>
> --
> Joseph Carter <[EMAIL PROTECTED]> Free software developer
>
> <Flav> Win 98 Psychic edition: We'll tell you where you're going tomorrow
>
--
Zilvinas Valinskas
_______________________________________________
Dri-devel mailing list
[EMAIL PROTECTED]
http://lists.sourceforge.net/lists/listinfo/dri-devel
