Kernel boot hangs on IRQ in Gutsy with Thinkpad X21

I did a complete fresh install on the laptop and am still experiencing the issue. By some luck I was able to get it to boot a couple times (not sure why though) and get the latest updates along with the latest kernel (2.6.22-14 I believe). And am still experiencing this problem.

Was able to get it to boot by adding the acpi=off flag. Looks like acpi broke at some point for this laptop? Also got a little more info at a different hang point:

[ 15.766383] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
[ 15.780084] pnp: Device 00:0f activated.
[ 15.780510] 00:0f: ttyS0 at I/O 0x3f8 (irq=4) is a 16550A
[ 15.781322] PCI: Found IRQ 11 for device 0000:00:0a.1
[ 15.781396] PCI: Sharing IRQ 11 with 0000:00:0a.0

I've attached the dmesg from a successful boot.

I get this issue with my new Asus P5E motherboard (Intel X38 chipset) with Intel Q6600 CPU. Hangs on this dmesg:

[ 39.696859] ACPI: PCI Interrupt 0000:05:01.0[A] -> GSI 17 (level, low) -> IRQ 17

UPDATE: My problem turned out to be a crummy PCI wireless 802.11g card - LevelOne WNC-0300 (Atheros chipset, madwifi driver). Twiddling with acpi had no effect, but removing the card solved the problem.

what do you have on IRQ 11?

Can this bug be closed, then?

Probably, I don't own the laptop anymore, so not much point in having a bug
if it can't be tested :)

-Ahmed

On Tue, May 27, 2008 at 7:30 AM, Rolf Leggewie <launchpad.net@
rolf.leggewie.biz> wrote:

> Can this bug be closed, then?
>
> --
> Kernel boot hangs on IRQ in Gutsy with Thinkpad X21
> https://bugs.launchpad.net/bugs/147972
> You received this bug notification because you are a direct subscriber
> of the bug.
>

--
-Ahmed Osman

Testing of fixes no longer possible.

I can confirm I had the exact same problem with my T21 and a Xircom combo modem/ethernet mini-pci card. (MPCI3A56G-100)
It was working and then failed to boot after updating the kernel. And once in a blue moon it will boot without hanging.

Removing the card allowed the laptop to boot again.

Same Problem as the Thread-Starter, though the problem occured first after upgrading from Gutsy to Hardy.
After clearing the HDD i can't even boot from a Linux-CD (tried Ubuntu, ArchLinux, Suse...all in several versions, from old to the latest Intrepid Alpha iso). WinXP doesn't finish the installation, Win2000 works fine...

Tried lots of boot-flags (noapic, acpi=off, pci=routeirq) with no effect.

On ThinkWiki there some suggestions that it might be the integrated Ethernet-Card (http://www.thinkwiki.org/wiki/Installing_Ubuntu_on_a_ThinkPad_X21), though after disabling it in BIOS bootup still wont finish. After removing the Card from the System boot from CD is successful. I'll replace the card as soon as possible and report afterwards...