hang after "Uncompressing Linux... Ok, booting the kernel"

Bug #50808 reported by Stefan Wehr
6
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linux (Ubuntu)
New
Undecided
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Bug Description

Binary package hint: linux-image-2.6.15-25-686

I'm running kernel 2.6.15-25-686 on a ThinkPad x60s. When the system boots (either after a full halt or hibernation) it hangs for approx. 2mins after displaying the line

  "Uncompressing Linux... Ok, booting the kernel"

Then I booted in recovery mode. Now there is more debugging output. (I don't know in which file the messages below can found; hence, I copied them from the screen so there might be some typos.)

Begin: Mounting root file system
Being: Running /scripts/local-top
..... some message omitted
ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 16 (level, low) -> IRQ 201
=> HANG HERE

I did not have this problem with kernel linux-image-2.6.15-23-686.

This bug may be related to the problems reported by Alex Bligh in Bug #35174.

Tags: linux
Revision history for this message
Korny Sietsma (korny) wrote :

I'm also experiencing this, or something similar, with kernel 15-23.
I regularly get a 2 minute delay after the line "Mounting root file system..." is displayed.

However, occasionally it only stops for 10 to 20 seconds at this point. I haven't been able to work out what I've done differently to change the delay - it seems to be random.

This happens both on cold boots, and when resuming from hibernate.

Revision history for this message
Yves Junqueira (yves.junqueira) wrote :

Seems like some of the "message omitted" can relevant.

Just a guess. Can you try to boot passing "acpi=noirq" in the boot parameters?

Revision history for this message
Stefan Wehr (mail-stefanwehr) wrote :

The boot option "acpi=noirq" does not help. I added an attachment that show the boot messages just before the hang.

Revision history for this message
Stefan Wehr (mail-stefanwehr) wrote : Boot messages just before the hang.

Boot messages just before the hang.

Revision history for this message
Littleiffel (thierry-nicola) wrote :

I confirm this hang on booting. I just upgraded to linux 686...-25 and now i got a hang for 2-3 minutes on "mounting the root filesystem".

Before I used the kernel 386....-23.

I even noticed that coming back from suspend(sleep) takes longer now than before, but I might be wrong. I will investigate on this.

Revision history for this message
Launchpad Janitor (janitor) wrote : This bug is now reported against the 'linux' package

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this linux-source-2.6.15 kernel bug to the new "linux" package. We appreciate your patience and understanding as we make this transition. Also, if you would be interested in testing the upcoming Intrepid Ibex 8.10 release, it is available at http://www.ubuntu.com/testing . Please let us know your results. Thanks!

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