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I wanted to upgrade the Linux kernel on my Debian wheezy (stable) on Thinkpad T60. I installed linux-image-3.2.0-0.bpo.4-686-pae, version 3.2.41-2~bpo60+1. The problem is it hangs during boot, just after Cleaning ifupdown.... with

BUG: soft lockup - CPU#1 stuck for 23s

Is there anything I can do about it, or is it a kernel bug? I've never experienced this problem with older 2.6.x kernels.

enter image description here

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Not really an expert or anything, but have you tried removing the "quiet" kernel boot parameter to get more verbose output? –  Joseph R. May 21 '13 at 1:35
    
Is there a newer kernel package available for it? Most recent long term support kernel is 3.4.46. –  Keith May 21 '13 at 6:12

2 Answers 2

up vote 4 down vote accepted
+50

The key to what's happening is that it hung in modprobe: it's probably hung trying to load a module for a piece of hardware.

Stuff to try:

  • add noapic to the kernel command line, and make sure quiet isn't present so you can see what's going on
  • make sure your laptop's BIOS is at the latest version
  • if you do manage to figure out which module is causing the hang, boot from a recovery CD and add modules to /etc/modprobe.d/blacklist.conf
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Seems that the problem was caused by module lirc_sir. After removing it, the kernel boots. Thanks. –  Petr Pudlák May 21 '13 at 17:05

Potential issue #1

I found an issue similar to yours covered over in this Server Fault Q&A titled: How to fix “BUG: soft lockup - CPU#0 stuck for 17163091968s”?. Perhaps it's related to your issue as well.

Potential issue #2

Another issue in launchpad, sounds similar to yours. Issue's title: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/0:3:566]; RIP: 0010:[] [] mei_timer+0xc3/0x260 [mei]. The workaround for this issue was to update to a newer kernel.

Workarounds?

In general I would advise you to try upgrading to a newer kernel for starters only to confirm that the issue is with your combination of hardware + kernel version.

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