kernel 2.6.24-15 only works with noapic on HP/Compaq 6715s

[Unkraut]

Binary package hint: linux-image-2.6.24-15-generic

Hello!

When starting without options my HP/Compaq 6715s will hang after entering the LUKS-Passphrase.

When using noapic as a Kernel-Parameter my system starts, but Disk performance is too slow to make the system usable. (But this is another bug)

regards,
Simon Waid

PS:

lsb_release -rd

Description: Ubuntu hardy (development branch)
Release: 8.04

apt-cache policy linux-image

linux-image:
  Installiert:2.6.24.15.17
  Mögliche Pakete:2.6.24.15.17
  Versions-Tabelle:
 *** 2.6.24.15.17 0
        500 http://de.archive.ubuntu.com hardy/main Packages
        100 /var/lib/dpkg/status

[Leann Ogasawara (leannogasawara)]

Hi Simon,

Care to update to the latest 2.6.24-16 kernel as well as the latest linux-ubuntu-modules. Then can you boot with the 'quiet' and 'splash' options removed. Is anything interesting output to the screen. If so, care to take a digital photo and attach it to this bug report. I know there was a patch which was recently applied and then reverted in linux-ubuntu-modules which was causing boot issues - https://edge.launchpad.net/ubuntu/+source/linux-ubuntu-modules-2.6.24 . Thanks.

[Unkraut (unkraut2)]

Hi, Leann, hi everyone.

I've tried around a bit.

I found out, that when booting with the option nohz=off my system works completely normal. Thus the problem is not apci, but the Tickless option.
I also tried to compile the vanilla kernel (2.6.25-rc9). The same problem apperared. Thus this is not an ubuntu specific problem.

If you like you can mark this bug as invalid or whatsoever. I am sorry for bothering you.

It would however be great if this problem could be fixed, such that eighter the Tickless-option is automaticaly disabled or the probem is solved. This would make life easier for some people I think.

I attached my system-information as requested by the policies.

Thank you a lot,
best regards,
Simon

[Leann Ogasawara (leannogasawara)]

Hi Simon,

Sorry for the delayed response here :/ Even though this is an issue which exists upstream, it would be great to get it fixed regardless. Bugs which exist upstream will always affect Ubuntu users since we rebase with the upstream kernel so it's good to get them resolved. Would you mind opening an upstream bug report at http://bugzilla.kernel.org . I often witness that once a bug is opened upstream there is a quick resolution through the help and support of the upstream kernel community. For help with reporting bugs upstream, take a look at the following link:

https://wiki.ubuntu.com/KernelTeamBugPolicies#head-5c359dabc7647e30265f5fbfe8daad31f4183714

We can then link this launchpad bug report to the upstream report. Thanks again for all the testing and help.

[Leann Ogasawara (leannogasawara)]

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

[Timo Saloranta (timo-saloranta)]

Running Intrepid alpha HP/Compaq 6715s with 2.6.27 now boots without extra kernel parameters.

But the system is painfully slow - starting and logging in takes almost 15 minutes in total and the system is practically unusable after that. So I have to use 2.6.24 with nohz=off option instead. I have not yet spotted, whether this slowness issue has already been reported as a separate bug.

[Christoph Klaffl (z3r0c00l)]

I can also confirm the problem with the ubuntu intrpeid beta release on an HP/Compaq 6715s. The system is very very slow.
Ubuntu Hardy with 2.6.24-19 kernel worked fine but the wlan wasn't working, so I installed intrepid where wlan works now but everything is to slow :-( I think I have to switch back to hardy an patch the wlan driver because intrepid is too slow. I really want to see a fix or a reason for this slowness problem

c,Ya

[Christoph Klaffl (z3r0c00l)]

Update:

With the noapic option everything works fine exept the power management of course :-(

c,Ya

[Unkraut (unkraut2)]

Hey Chief,

You could try to compile the kernel version 2.6.25 (Version 2.6.26 should work too) by yourself and disable HighRes Timers and the Tickless feature (eighter in the .config or by passing nohz=off). It's really easy and on my computer everything works (including WLAN).

Best regards,
Simon

[Christoph Klaffl (z3r0c00l)]

Hey Simon,

I don't want to compile my own kernel :-) I was thinking about this topic in hardy too because off the wlan driver (there was/is a patch available which makes the wlan working in kernel version 2.6.24-19). And I just found out that some parts of the power management are working (when I unplug the notebook, the battery state and levels are shown :-)). So the last problem which exists is hibernation which worked in hardy fine but here in intrepid it doesn't (I think the problem is the kernel or/and the noapic option)

But the system is now perfectly setup beside the one problem. Now I can give it to my girlfriend (It's her notebook, she won it three days ago :-), and she wants to try a linux operation system because I am so fascinated about it :-D, I'm very interested if she can work with it because she isn't very computer literate ;-) )

Maybe a coming kernel update in the repos will fix this problem ;-)

Thanks for your advice

c,Ya

[Oibaf (oibaf)]

For the slowness problem on HP Compaq 6715s with intrepid see bug #280202 .

[Oibaf (oibaf)]

This should be fixed in current intrepid kernel.