| === Zdra is now known as xclaesse | ||
| === mwhudson is now known as zz_mwhudson | ||
| === Guest16062 is now known as fmasi | ||
| vlad_starkov | I probably found a bug in some module. Can't boot Ubuntu Server on my machine. It raises CPU soft lockup errors all the time. The system even can't boot. | 16:19 |
|---|---|---|
| vlad_starkov | I tried to boot from grml USB flash, and it does almost all the same. But when I tried to boot grml with 'noudev' boot option, the grml has booted just fine and htop shows me all my 8 CPU cores with 0-2% load. | 16:22 |
| vlad_starkov | What does 'noudev' boot option in my case? | 16:22 |
| brendand | does anyone know about low-power states used in the phablet image? is there any sort of shifting of power states - say when the screen off button is pressed? | 16:24 |
| BenC | apw: How goes the integration? | 16:29 |
| apw | BenC, looking good according to the testing we have done, working on the 'final' version right now as it happens | 16:30 |
| BenC | apw: Is it in git? | 16:31 |
| apw | BenC, shortly ... | 16:31 |
| BenC | I'd like to test out the ppc bits | 16:31 |
| BenC | apw: I'm hoping no changes were made to the configs :) | 16:31 |
| apw | i'll ping you when i've pushed it ... configs are identicle indeed | 16:31 |
| BenC | Thanks for that | 16:31 |
| vlad_starkov | Question: Given I can't boot Ubuntu Server 12.04. It always raises CPU soft lockup error. What would be the right strategy to find the buggy module and disable it? | 16:39 |
| smb | The softlockup warnings should have a stack-trace that should hint what is waiting. That might indicate which area or even module is involved | 16:43 |
| vlad_starkov | smb: so I have to wait while such information will appear on screen or should I apply some special 'verbose'-like boot option to get it? | 17:18 |
| vlad_starkov | smb: the CPU lockups begins after 'Running /scripts/init-bottom ... done' and 'init: ureadahead main process (369) terminated with status 5' | 17:21 |
| vlad_starkov | smb: then it continues with "BUG: soft lockup – CPU#0 stuck for 30s! [modprobe:476]" | 17:22 |
| vlad_starkov | smb: then the same with "... [flush-8:0:557]" | 17:22 |
| apw | BenC, on master-next let me know if it works ok :) | 18:51 |
| BenC | apw: I'll test it tonight, thanks. | 18:52 |
| === zz_mwhudson is now known as mwhudson | ||
| apw | BenC, great thanks | 19:37 |
| vlad_starkov | BUG detected http://paste.ubuntu.com/6828163/ | 20:07 |
| smoser | [ 588.212384] perf samples too long (2512 > 2500), lowering kernel.perf_event_max_sample_rate to 50000 | 20:07 |
| smoser | [ 8632.343242] perf samples too long (5010 > 5000), lowering kernel.perf_event_max_sample_rate to 25000 | 20:07 |
| smoser | what does the above mean ? I'm seeing it on trusty, on non-ssd laptop. | 20:08 |
| mwhudson | smoser: the way perf works iiuc is that there is a ring buffer that the kernel shoves data into and the user space process reads it out and writes it to disk | 20:35 |
| mwhudson | i think that message means the user space process isn't keeping up | 20:35 |
| === FreezingAlt is now known as FreezingCold | ||
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