This should be fine, but when I request_irq for the shared irq (yes, I pass
the SA_SHIRQ flag) the computer completely hangs. No keyboard, no mouse,
ne error message, no nothin'.
I don't know why this request_irq would be a problem, so maybe it is just
very very close to it, but there it hangs. Any ideas would be greatly
appreciated.
The specifics:
Cyrix 6x86 166 processor
Intel triton motherboard chipset
Linux 2.0.32 w/ bigphysarea-2.0.32 and cyrix patches,
IDE drives,
and a WD network card.
The PCI bus is as follows. This is before I load the module for the
0x12c5:0x83 devices, so it is not hung yet.) Note that irq 5 is shared.
I can't imagine why this would be a problem, but that seems to be where
it is hanging.
PCI devices found:
Bus 0, device 20, function 0:
VGA compatible controller: S3 Inc. Trio32/Trio64 (rev 0).
Medium devsel. IRQ 11.
Non-prefetchable 32 bit memory at 0xe0000000.
Bus 0, device 18, function 0:
Multimedia controller: Unknown vendor Unknown device (rev 0).
Vendor id=12c5. Device id=83.
Fast devsel. IRQ 5. Master Capable. Latency=64.
Non-prefetchable 32 bit memory at 0xe0803000.
Non-prefetchable 32 bit memory at 0xe0804000.
Bus 0, device 16, function 0:
Multimedia controller: Unknown vendor Unknown device (rev 0).
Vendor id=12c5. Device id=83.
Fast devsel. IRQ 5. Master Capable. Latency=64.
Non-prefetchable 32 bit memory at 0xe0801000.
Non-prefetchable 32 bit memory at 0xe0802000.
Bus 0, device 14, function 0:
Multimedia controller: Unknown vendor Unknown device (rev 0).
Vendor id=12c5. Device id=83.
Fast devsel. IRQ 9. Master Capable. Latency=64.
Non-prefetchable 32 bit memory at 0xe0805000.
Non-prefetchable 32 bit memory at 0xe0800000.
Bus 0, device 7, function 3:
Bridge: Intel 82371AB PIIX4 Power Management (rev 1).
Medium devsel. Fast back-to-back capable.
Bus 0, device 7, function 2:
USB Controller: Intel 82371AB PIIX4 (rev 1).
Medium devsel. Fast back-to-back capable. IRQ 11. Master Capable. Late
ncy=64.
I/O at 0x6400.
Bus 0, device 7, function 1:
IDE interface: Intel 82371AB 430TX PIIX4 (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=64.
I/O at 0xf000.
Bus 0, device 7, function 0:
ISA bridge: Intel 82371AB PIIX4 (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 0, device 0, function 0:
Host bridge: Intel 82439TX (rev 1).
Medium devsel. Master Capable. Latency=64.
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