"irq 11: nobody cared" after S3

Stefan Dösinger
2004-08-01T16:50:25Z

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Hello,
I have a really odd problem with acpi interrupts and ipw2100.

I use 2.6.8-rc2 + acpi-20040715 and the system works fine after S3 as long no
driver uses IRQ11. But if I have ipw2100 loaded before I suspend or load it
afterwards, irq11 and irq10 are disabled.

The odd thing is that it worked for 2 days with the (hopefully) same
configuration. Then I tried to make a clear patch which calls
acpi_leave_sleep_state before resuming the devices which is needed on my
notebook(see pci device resume too early?). I recombiled the kernel and my
nice setup stopped working. Returning to the original code didn't help.

The problem occurs when ipw2100(or ndiswrapper) is loaded before I suspend(see
dmesg.loadbefore) or if I load it after resume(see dmesg.loadlater. In both
cases IRQ11 and IRQ10 are disabled. IRQ10 works nicely as long IRQ11 is not
used. The IRQ crash occues eighter when PIT is resumed or when ipw2100
registers the irq line.

This is my /proc/interrupts with a normally booted system(no S3):
CPU0
0: 1508252 XT-PIC timer
1: 2953 XT-PIC i8042
2: 0 XT-PIC cascade
5: 19552 XT-PIC uhci_hcd, eth0
8: 2 XT-PIC rtc
9: 168 XT-PIC acpi
10: 94435 XT-PIC ehci_hcd, uhci_hcd, uhci_hcd,
radeon@PCI:1:0:0, Intel ICH4
11: 1166 XT-PIC wlan0
12: 5382 XT-PIC i8042
14: 14433 XT-PIC ide0
NMI: 0
LOC: 1508373
ERR: 0
MIS: 0

After this crash, 11 hase a count of exactly 100000.
I tried with and without APIC, IOAPIC, hpet, power management timer.
If I reverse the patch from http://bugme.osdl.org/show_bug.cgi?id=2643, the
messages disappear, but the interrupts still do not work.

Any ideas?
Best regards,
Stefan

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