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SubjectRe: 2.4.19-rc3-ac2 SMP
On Tue, 23 Jul 2002, James Cleverdon wrote:

> Drat! I thought I had all the logical vs. physical stuff straightened out.
> Could you give this patch a try? It dumps all kinds of APIC state info.
> You'll need to put a call to apic_state_dump() into check_timer() just after
> the TIMER: printk.

ID=0x02000000, LVR=0x00170011, TPR=0x00000000, ARB=0x00000002, PROCPRI=0x000000F0
DFR=0x0FFFFFFF, LDR=0x01000000, ICR=0x00088500, SPIV=0x000001FF, ICR=0x00088500,
ICR2=0x03000000, LVTT=0x00000000, LVTPC=0x00000000
LVT0=0x00010700, LVT1=0x00000400, LVTERR=0x000000FE
ISR: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
TMR: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
IRR: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
clustered_apic_mode=0, esr_disable=0, target_cpus=0x00 apic_broadcast_id=0x0F
raw_phys_apicid[]= 00 01 02 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00
cpu_2_logical_apicid[]= 01 01 02 08 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF
cpu_2_physical_apicid[]= 02 00 01 03 FF FF FF FF FF FF FF FF FF FF FF FF FF FF F
F FF FF FF FF FF FF FF FF FF FF FF FF FF
I/O APIC # 0:
00: 00000931:04000000 00010939:02000000 00010000:00000000 00000941:0F000000
04: 00000949:0F000000 00000951:0F000000 00010959:02000000 00000961:0F000000
08: 00000969:0F000000 00000971:0F000000 00000979:0F000000 00000981:0F000000
0C: 00000989:0F000000 00000991:0F000000 00000999:0F000000 000009A1:0F000000
10: 00010000:00000000 00010000:00000000 00010000:00000000 00010000:00000000
14: 00010000:00000000 00010000:00000000 00010000:00000000 00010000:00000000

> (Hmmm.... Must clean up this patch and submit it to kdb as two new commands,
> one for I/O APICs and one for local APICs....)

i'd vote for that =) except for one thing.

+ /* APICs tend to spasm when they get errors. Disable the error intr. */
+ apic_write_around(APIC_LVTERR, ERROR_APIC_VECTOR | APIC_LVT_MASKED);

Isn't that a bit drastic?

Regards,
Zwane
--
function.linuxpower.ca


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