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Old 05-05-05, 01:20 AM   #97
gilboa
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Default Re: Trying to make headway into finding the Xid crashes source...

Duh... being an idiot is so much fun; That's why I do it all the time...

I tried, just for the sake of it to run in noapic mode.
As I said, last time I tried it (FC2, 2.6.5) the SCSI performance went to hell (~5MB/sec)
Tried doing it again, fully ready to reboot my machine the second it starts acting up.... but... surprise... clean boot!

Code:
           CPU0       CPU1
  0:     452068          0          XT-PIC  timer
  1:        522          0          XT-PIC  i8042
  2:          0          0          XT-PIC  cascade
  7:       1575          0          XT-PIC  ehci_hcd, eth0
  8:          1          0          XT-PIC  rtc
  9:          1          0          XT-PIC  acpi
 10:      34725          0          XT-PIC  aic7xxx, CMI8738-MC6, ohci_hcd
 11:      28750          0          XT-PIC  nvidia
 12:       1265          0          XT-PIC  EMU10K1, ohci_hcd
 14:       9960          0          XT-PIC  ide0
 15:      10106          0          XT-PIC  ide1
NMI:          0          0
LOC:     451971     451968
ERR:         79
MIS:          0
I'll start running OpenGL apps and see if it works...

Cheers,
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Last edited by gilboa; 05-05-05 at 04:51 AM.
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Old 05-05-05, 05:19 AM   #98
Saulzar
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Default Re: Trying to make headway into finding the Xid crashes source...

I am curious as to how one goes about changing the IRQ's about .. the only thing I can find in bios will reserve an IRQ.

I have all of nvidia, usb AND eth0 all using irq 11

If I reserve irq 11 then all of them move to irq 10...

I think I have apic disabled with
append="nolapic noapic"

Quote:
CPU0
0: 613308 XT-PIC timer
1: 2161 XT-PIC i8042
2: 0 XT-PIC cascade
3: 17296 XT-PIC uhci_hcd
5: 2 XT-PIC ehci_hcd
10: 40734 XT-PIC uhci_hcd, eth0, nvidia
12: 52 XT-PIC uhci_hcd, VIA8233
14: 35 XT-PIC ide0
15: 11200 XT-PIC ide1
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Old 05-05-05, 05:42 AM   #99
gilboa
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Default Re: Trying to make headway into finding the Xid crashes source...

ACPI is indeed disabled on your machine. (Hence the XT-PIC in the table)
Can you assign IRQ-per-slot in your BIOS?
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SRV: Tyan Tempest i5400XT, 2xE5335, 8GB, 4x2TB, 9800GTX, F19/x86-64, Dell U2412.
LAP: ASUS N56VJ, i7-3630QM, 16GB, 1TB, 635M, F19/x86_64.
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Old 05-05-05, 05:56 AM   #100
Saulzar
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Default Re: Trying to make headway into finding the Xid crashes source...

Nope - I can just set to PCI Slot/Reserve per IRQ num.

I just noticed that with apic that the nvidia card does not share the irq... So either I have a different problem or the same problem in disguise. Running gl-117 gives freeze with Xid 23/8 as usual.

Quote:
1: 690 IO-APIC-edge i8042
7: 2 IO-APIC-edge parport0
9: 0 IO-APIC-level acpi
14: 31 IO-APIC-edge ide0
15: 12108 IO-APIC-edge ide1
177: 1069 IO-APIC-level eth0
185: 17445 IO-APIC-level uhci_hcd, uhci_hcd, uhci_hcd, ehci_hcd
193: 584 IO-APIC-level VIA8233
201: 16529 IO-APIC-level nvidia
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Old 05-05-05, 06:00 AM   #101
gilboa
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Default Re: Trying to make headway into finding the Xid crashes source...

Try running without apic. (noapic in kernel command line)
It seems to have worked for me (I'm not certain yet)

Cheers,
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DEV-NG: Intel S2600C0, 2xE52658V2, 32GB, 4x2TB, GTX680, F19/x86_64, Dell U2711.
DEV: Intel S5520SC, 2xX5680, 36GB, 5x320GB, GTX550, F19/x86_64, Dell U2711 (^).
SRV: Tyan Tempest i5400XT, 2xE5335, 8GB, 4x2TB, 9800GTX, F19/x86-64, Dell U2412.
LAP: ASUS N56VJ, i7-3630QM, 16GB, 1TB, 635M, F19/x86_64.
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Old 05-05-05, 06:12 AM   #102
Saulzar
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Default Re: Trying to make headway into finding the Xid crashes source...

Same result - only as you can see below, that is possibly because there are 3 devices on the same irq. I'll disable ethernet/usb and give it a go...
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Old 05-05-05, 07:09 AM   #103
gilboa
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Default Re: Trying to make headway into finding the Xid crashes source...

Go back to noacpi.
Assign IRQ 4 and 7 to the ethernet and nVidia cards... this should clear up the mess.
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SRV: Tyan Tempest i5400XT, 2xE5335, 8GB, 4x2TB, 9800GTX, F19/x86-64, Dell U2412.
LAP: ASUS N56VJ, i7-3630QM, 16GB, 1TB, 635M, F19/x86_64.
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Old 05-05-05, 08:56 AM   #104
Saulzar
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Default Re: Trying to make headway into finding the Xid crashes source...

I don't think my bios supports changing the IRQ's like that - it only has a feature to reserve particular IRQ nums (which isn't helpful). (I have a VIA KM400-M2 Mobo)

Not making any headway - I've switched back to my 5200 to get some work done, will mess around tomorrow again.
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Old 05-05-05, 08:59 AM   #105
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Default Re: Trying to make headway into finding the Xid crashes source...

I have 4 things on IRQ16 (including nvidia) but I cannot change it.

Does the IRQ make a difference? I have same IRQs in Windows and I don't have any crashes there.

Code:
           CPU0
  0:    1834970    IO-APIC-edge  timer
  1:       1845    IO-APIC-edge  i8042
  9:          0   IO-APIC-level  acpi
 12:     108610    IO-APIC-edge  i8042
 14:      17829    IO-APIC-edge  ide0
 15:      32364    IO-APIC-edge  ide1
 16:     176193   IO-APIC-level  ehci_hcd, libata, EMU10K1, nvidia
 17:          7   IO-APIC-level  ohci1394
 18:      21389   IO-APIC-level  ohci_hcd, bttv0
 19:      12116   IO-APIC-level  ohci_hcd, ohci1394, eth1
 20:          0   IO-APIC-level  ohci_hcd
 23:        134   IO-APIC-level  ohci_hcd
NMI:          0
LOC:    1834895
ERR:          0
MIS:          0
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Old 05-05-05, 09:04 AM   #106
gilboa
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Default Re: Trying to make headway into finding the Xid crashes source...

It may.
It depends heavily on the kernel and on the drivers.

Old Windows SBLive! drivers used to hate IRQ sharing, they would BSOD the OS during playback.
Heck, even Intel network cards used to have issues with IRQ sharing.

Cheers,
__________________
DEV-NG: Intel S2600C0, 2xE52658V2, 32GB, 4x2TB, GTX680, F19/x86_64, Dell U2711.
DEV: Intel S5520SC, 2xX5680, 36GB, 5x320GB, GTX550, F19/x86_64, Dell U2711 (^).
SRV: Tyan Tempest i5400XT, 2xE5335, 8GB, 4x2TB, 9800GTX, F19/x86-64, Dell U2412.
LAP: ASUS N56VJ, i7-3630QM, 16GB, 1TB, 635M, F19/x86_64.
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Old 05-05-05, 07:52 PM   #107
nagual.hsu
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Default Re: Trying to make headway into finding the Xid crashes source...

About IRQ sharing:

If I remember correctly, you can make an device to use a different
IRQ. However, when you do this, you will end up with changing an
IRQ of a group of devices(chips). That means, if they now share
the same IRQ, you can not isolate one of them and change the IRQ
of it 'cause they share the same IRQ line, an hardwire line. But why bios
offers such a function? I guess there's a reason about it. And that's the
different priorities of different IRQs. Some IRQ is the highest priority(ie.
IRQ 0).....

I don't know how APIC works in concepts. But it seems there's nothing
software/kernel/drivers can do about it. I've tried changing IRQs couple
of month ago but in vain.(not exactly what I wanted.) Then I did googling,
and found what I said in the beginning of this post. However, we do ask
an mainboard vendor to isolate 4 IRQs each for 4 devices and it works.
I don't know how they make it. But they say about changing the firmware
of the bios.(This somehow contradicts what I found in googles.). Yes,
I guess there's some switch array (hardware) that does this job routing
some lines together so that some devices can share the same IRQ. And
this switch array is controlable by the firmware of the bios.

nagual

Last edited by nagual.hsu; 05-05-05 at 08:04 PM.
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Old 05-05-05, 09:34 PM   #108
tobiasoed
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Default Re: Trying to make headway into finding the Xid crashes source...

man setpci ? Looks like a thorny path though.
Tobias.
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