On Mon, 23 Jan 2006, Igor Yakushin wrote:
> Perhaps, there might be something in .config file that needs to be
> enabled/disabled?
No, the configuration settings should not need to be changed.
> > Are you sure that the patch is causing the crashes?
>
> I recompiled the kernel again with your patch. The first time I booted it
> crashed immediately with
> a kernel panic and rebooted. However, the second time it managed to work for
> about 30 minutes and
> then again kernel panic.
> There were approximately the following messages:
> =============
> IRQ 225: nobody cared (try booting with irqpoll option)
> Call trace: <IRQ>...{_report_bad_irq+53}...{ata_interrupt+0x0/0x190 [libata]
> ohci_irq_handler ...
> Disabling IRQ #225
> ata2: command 0x25 timeout, stat 0x50 host_stat 0x24
> =============
> Looks like some kind interaction between disk and USB drivers?
Yes, it does. I suppose you never noticed it before because without the
patch you weren't able to use your USB devices under this kernel.
What does /proc/interrupts say? And what's in the dmesg log during
bootup?
What happens if you don't have any USB devices plugged in to begin with?
Does the system run okay until after you attach the USB drive?
> The third time (I did enabled the following kernel options: irqpoll apm=off
> apic=off) it got into
> kernel panic about 3 minutes after booting with the following messages:
> ==============
> Call trace IRQ {_do_IRQ+91}{do_IRQ+91}{do_IRQ+47}{handle_IRQ_event+26}
> {acpi_ev_sci_xrupt_handler+22}{note_interrupt+378}{do_IRQ+215}{do_IRQ+47}
> {ret_from_intr+0}<EOI>{default_idle+56}{cpu_idle+97}{start_secondary+1245}
>
> Code 85 c0 7b 48 8b 0d 8c c0 22 00 48 ff c6 48 8d 14 8d 00 00
> Kernel panic - not syncing: nmi watchdog
I can't tell what happened there.
There was another patch posted yesterday that might also have an effect:
http://marc.theaimsgroup.com/?l=linux-usb-devel&m=113804408817462&w=2
This probably conflicts with my patch, so you'll have to remove it before
you can apply this one.
Alan Stern
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