http://bugzilla.kernel.org/show_bug.cgi?id=11832
--- Comment #30 from M. Vefa Bicakci <bic...@superonline.com> 2009-04-04
13:12:53 ---
Hello,
Unfortunately, I have bad news. I took vanilla 2.6.29 and modified it so
that its spurious interrupt threshold is 99. After an uptime of 4 days
and 4.5 hours with this kernel, at 3:30am, when the computer was mostly
idle, I got the "nobody cared" message below:
=== 8< ===
irq 18: nobody cared (try booting with the "irqpoll" option)
Pid: 0, comm: swapper Not tainted 2.6.29-spurious #1
Call Trace:
[<c0175494>] __report_bad_irq+0x24/0x90
[<c017566d>] note_interrupt+0x16d/0x1b0
[<c0174590>] handle_IRQ_event+0x30/0x60
[<c0175d2b>] handle_fasteoi_irq+0xab/0xd0
[<c0106273>] do_IRQ+0x43/0x90
[<c0104427>] common_interrupt+0x27/0x2c
[<f80770c8>] acpi_idle_enter_bm+0x2c8/0x351 [processor]
[<c02e387f>] cpuidle_idle_call+0x6f/0xc0
[<c0102ce6>] cpu_idle+0x66/0xa0
handlers:
[<f80ba970>] (usb_hcd_irq+0x0/0x80 [usbcore])
[<f81bd600>] (tifm_7xx1_isr+0x0/0x140 [tifm_7xx1])
[<f80eaad0>] (yenta_interrupt+0x0/0xf0 [yenta_socket])
[<f808ad60>] (sdhci_irq+0x0/0x560 [sdhci])
Disabling IRQ #18
=== >8 ===
My laptop has four USB ports, two on its right side and two on its back.
I have a USB keyboard attached to one of the ports on the back and a
USB mouse attached to one of the ports on the right side. This "nobody
cared" message only affected the rear ports. If I connect my USB keyboard
to a port on the right side, then it works properly. I don't know if this
problem is specific to the ports on the real panel or is because of my USB
keyboard.
If needed, I can reboot and have my USB keyboard (and mouse) attached to
one of the ports on the right side and see whether I get a "nobody cared"
message or not.
What I don't understand is how I managed to get with 2.6.28.7-spurious
a 15 day uptime without any "nobody cared" messages.
Should I go back to testing 2.6.24.7 or 2.6.28.7 ? I would appreciate
any suggestion to debug this problem.
I will not reboot until I get a reply from you, in case the current
state of the computer can provide some information.
Thank you,
M. Vefa Bicakci
---
For the record, the following is what my /proc/interrupts looks like:
=== 8< ===
CPU0 CPU1
0: 248683635 8493 IO-APIC-edge timer
1: 95240 46 IO-APIC-edge i8042
8: 15 0 IO-APIC-edge rtc0
9: 105898 25576 IO-APIC-fasteoi acpi
12: 1105620 0 IO-APIC-edge i8042
14: 809096 8 IO-APIC-edge ata_piix
15: 1900817 84 IO-APIC-edge ata_piix
16: 596 48 IO-APIC-fasteoi uhci_hcd:usb5,
i...@pci:0000:00:02.0
17: 3501 0 IO-APIC-fasteoi firewire_ohci
18: 455207 8036 IO-APIC-fasteoi uhci_hcd:usb4, tifm_7xx1, yenta,
mmc0
19: 441166 20272 IO-APIC-fasteoi uhci_hcd:usb3
20: 90489 12 IO-APIC-fasteoi eth0
22: 2727170 0 IO-APIC-fasteoi HDA Intel
23: 22 2 IO-APIC-fasteoi ehci_hcd:usb1, uhci_hcd:usb2
27: 4655721 586 PCI-MSI-edge iwl3945
NMI: 0 0 Non-maskable interrupts
LOC: 10409292 99475736 Local timer interrupts
RES: 2619999 4462391 Rescheduling interrupts
CAL: 186 592 Function call interrupts
TLB: 19465 26565 TLB shootdowns
TRM: 0 0 Thermal event interrupts
SPU: 0 0 Spurious interrupts
ERR: 0
MIS: 0
=== >8 ===
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