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Shining Arcanine
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PostPosted: Tue Jan 19, 2010 12:19 am    Post subject: Reply with quote

Hwoarang wrote:
I do have some compilation issues with nvidia-drivers and virtualbox-modules using the latest rc of zen-sources? Anyone else having similar issues?


See this bug:

https://bugs.gentoo.org/show_bug.cgi?id=301318
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dodo1122
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PostPosted: Tue Jan 19, 2010 1:02 am    Post subject: Reply with quote

2.6.31-zen11 and 2.6.32-zen5 released.
2.6.32 should finally be at least somewhat stable :roll: Hopefully 2.6.33 will be a better release...


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PostPosted: Tue Jan 19, 2010 11:48 am    Post subject: Reply with quote

dodo1122 wrote:
2.6.31-zen11 and 2.6.32-zen5 released.
2.6.32 should finally be at least somewhat stable :roll: Hopefully 2.6.33 will be a better release...


dodo


Well, stable depends on what one runs :lol:

I've been using 2.6.32-zen2 for months now without any problems, though I use reiser 3 not 4.
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PostPosted: Tue Jan 19, 2010 12:36 pm    Post subject: Reply with quote

Yeah, hardware is everything with those things - i never have any problems even with early -rc kernels :P But 2.6.32 was generally a very unstable release, and it wasn't fixed until 2.6.32.4 (don't know whether the biggest annoyances are even fixed in this one, like the intel kms issue).
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PostPosted: Tue Jan 19, 2010 1:50 pm    Post subject: Reply with quote

Bumped on portage as well
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PostPosted: Tue Jan 19, 2010 3:52 pm    Post subject: Reply with quote

kernelOfTruth wrote:
hibernate to ram seems to be safe, too

badly we have an unfortunate situation going on here:


sound goes faster and slower - remembers me of windows 95 and faulty first generation drivers

ah - the good old times :twisted:

this is with BFS - anyone else encountering timing problems with sound ?

kernel is 2.6.33-rc4-zen1


BUMP

still happening:

1) it's happening with BFS and CFS

2) it's NOT a problem with pulseaudio (I reniced it to -20 which helped in the past but now doesn't)

3) I suspected that it was a problem with compositing and fglrx (which in the past / long ago caused problems) but it also didn't help to switch to metacity (without compositing)

4) there were a lot of wake-ups:
Quote:
Wakeups-from-idle per second : 1750.2 interval: 5.0s
no ACPI power usage estimate available

Top causes for wakeups:
91.0% (2668.4) <interrupt> : ohci1394
3.2% ( 93.8) <interrupt> : sky2@pci:0000:03:00.0
0.8% ( 24.4) songbird-bin : futex_wait_queue_me (hrtimer_wakeup)
0.5% ( 14.4) <interrupt> : pata_jmicron, uhci_hcd:usb4
0.5% ( 14.4) USB device 4-2 : USB Receiver (Logitech)
0.5% ( 13.6) chrome : futex_wait_queue_me (hrtimer_wakeup)
0.4% ( 11.4) <kernel core> : sk_reset_timer (tcp_delack_timer)
0.4% ( 10.8) pulseaudio : schedule_hrtimeout_range (hrtimer_wakeup)
0.3% ( 10.0) <kernel core> : ipmi_timeout (ipmi_timeout)


removing the ohci1394 module (yeah - I know I need to switch to the new yuyu stack)

unfortunately this didn't fix it as well

5) I suspected in the beginning that it's only happening with online-related stuff (e.g. webradio, flash, etc.)

it's NOT the case:

- it's happening with playing mp3s, movies
- online content: flash, webradio

* seconds (frames and sound) are skipped in movies
* music is playing faster and slower, that's not the only thing: sound is "stuttering" - it even stops for several seconds

6) it's also happening during high ahci-activity (reading from the harddrive)


summary:

- it's not only a cpu scheduler problem but something more
- probably alsa is broken (I saw similar behavior 15 years ago with Windows 95 and old, broken Ensoniq SoundScape drivers which played sound only way too slow)
- it somehow seems to be triggered with scrolling and/or using graphical applications (e.g. chrome, firefox, nautilus)
- it's NOT limited to gtk-apps, qt-apps (e.g. vlc) is also affected - vlc is affected even more ...
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PostPosted: Tue Jan 19, 2010 5:38 pm    Post subject: Reply with quote

strangely this only (or mostly) happens on

- gnome (with compiz-fusion [compositing enabled], metacity [compositing disabled])
- blackbox (pretty raw) <-- here it seems to happen the most / worst
- ...


it doesn't seem to happen KDE 4.4 RC1 and compositing enabled :?: :!:


no one encountering the same "problem" when using gnome, fluxbox, openbox, etc. (with 2.6.33-rc*) ?


edit:

it's also happening on KDE ! :(

it seems like the kernel (which part ?) can't maintain a constant flow of data :idea:

which leads to congestion / "hick ups"

edit2:

it seems to happen less often in the beginning on KDE

BUT the longer the system's up (in KDE) the more often it accumulates / happens <-- this generally applies to all GUIs
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PostPosted: Tue Jan 19, 2010 9:01 pm    Post subject: Reply with quote

if you got problems with soundset CONFIG_SCHED_BFS_AUTOISO to n in your kernel config
i used to have some problems with my audio and system response during playback, i get 1sec locks removing that option from kernel helped me

kernelOfTruth wrote:

did I mention that it's independent of the CPU scheduler ? :wink:

it happens with BFS AND/OR CFS

maybe you did, didn't read the whole tread just couple of last posts :)
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Last edited by tgR10 on Tue Jan 19, 2010 10:37 pm; edited 1 time in total
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PostPosted: Tue Jan 19, 2010 9:05 pm    Post subject: Reply with quote

tgR10 wrote:
if you got problems with soundset CONFIG_SCHED_BFS_AUTOISO to n in your kernel config
i used to have some problems with my audio and system response during playback, i get 1sec locks removing that option from kernel helped me


did I mention that it's independent of the CPU scheduler ? :wink:

it happens with BFS AND/OR CFS

and I made bad experience in the past with autoiso so it's off by default for me :P

but thanks !


nobody else experiences these sound "distortions" or video "skippings" ?
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PostPosted: Wed Jan 20, 2010 3:30 am    Post subject: Reply with quote

sched_iso is a good thing, but it can make some tasks skip if they aren't also run as sched_iso, the autoiso option only runs X as sched_iso, not the audio applications (so run the audio applications or whatever with schedtool -I and then the skipping would be fine with autoiso)

@kot
is there some type of i/o problem somewhere? make sure to check upstream 2.6.33 ;) io-controller stuff was merged in 2.6.33 maybe there's a bug.
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PostPosted: Wed Jan 20, 2010 6:40 am    Post subject: Reply with quote

Got the .33 won't make nvidia-drivers blues. Thanks for the link to the bug.

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PostPosted: Wed Jan 20, 2010 1:01 pm    Post subject: Reply with quote

cheater1034 wrote:
sched_iso is a good thing, but it can make some tasks skip if they aren't also run as sched_iso, the autoiso option only runs X as sched_iso, not the audio applications (so run the audio applications or whatever with schedtool -I and then the skipping would be fine with autoiso)

@kot
is there some type of i/o problem somewhere? make sure to check upstream 2.6.33 ;) io-controller stuff was merged in 2.6.33 maybe there's a bug.


thanks cheater !

I'll probably have a look in the weekend,

I'm however sure, that i/o is NOT the cause (or only a minor one)

currently I'm compiling qt in a tmpfs /var/tmp/portage - so there's no to little i/o (no i/o for s-ata or PCI-e which I suspected as the cause)


nevertheless there are frame + sound skips in video (1-2 seconds) when playing an avi / divx file and also with webradio


currently CFS is doing it's work as the CPU scheduler but it also happens with BFS, I removed support for pulseaudio yesterday and it's somewhat better but still happening


I suspect that it might be alsa + some other part of the kernel, I still don't know which the other part might be ...


the sound-driver is Intel HDA the hardware ALC882 on an Asus P5W DH Deluxe (Bios 2901)
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PostPosted: Wed Jan 20, 2010 3:50 pm    Post subject: Reply with quote

Could you try reverting the alsa whole branch from master? I think that might help.
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PostPosted: Wed Jan 20, 2010 4:27 pm    Post subject: Reply with quote

dodo1122 wrote:
Could you try reverting the alsa whole branch from master? I think that might help.


thanks dodo !

that git cheat sheet is really helpful :mrgreen:

Code:
git branch -r

git revert origin/alsa



would that leave me with a kernel without alsa-support ? :?

edit:

ah - I just saw that that particular alsa is from next 8O
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Last edited by kernelOfTruth on Wed Jan 20, 2010 10:39 pm; edited 1 time in total
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PostPosted: Wed Jan 20, 2010 8:14 pm    Post subject: Reply with quote

trashed my btrfs again. at least this time hibernating was the problem.
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PostPosted: Wed Jan 20, 2010 9:29 pm    Post subject: Reply with quote

SpectreDragon:

Btrfs just came out with some patches to address some of the bugs in the latest code.

It sounds like there were some bugs in the early rc updates for the 2.6.33 kernel.

I don't think there in the mainline 2.6.33 rc kernel yet, but you can get a snapshot of the fs/btrfs subdirectory from Chris Masons btrfs-unstable tree: http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-unstable.git;a=summary
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PostPosted: Wed Jan 20, 2010 10:48 pm    Post subject: Reply with quote

Dont Panic wrote:
SpectreDragon:

Btrfs just came out with some patches to address some of the bugs in the latest code.

It sounds like there were some bugs in the early rc updates for the 2.6.33 kernel.

I don't think there in the mainline 2.6.33 rc kernel yet, but you can get a snapshot of the fs/btrfs subdirectory from Chris Masons btrfs-unstable tree: http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-unstable.git;a=summary

thanks. will give that a try.
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PostPosted: Thu Jan 21, 2010 11:29 pm    Post subject: Reply with quote

Just thought i'd post a quick note, after installing 2.6.32-zen5 stable, which is awesome by the way... had no sound, and had to rerun alsaconf to get my audio back. (no pulseaudio)

All is well now.

Thanks
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PostPosted: Fri Jan 22, 2010 12:10 am    Post subject: 2.6.32-zen5 Reply with quote

sys-apps/microcode-ctl hangs during boot with the 2.6.32-zen5 kernel on my lenovo sl500 laptop.
I got in /var/log/messages the following lines (nothing special...)

Quote:

Jan 22 01:04:27 lasan kernel: microcode: CPU0 sig=0x6fd, pf=0x80, revision=0xa3
Jan 22 01:04:27 lasan kernel: platform microcode: firmware: requesting intel-ucode/06-0f-0d
Jan 22 01:05:27 lasan kernel: microcode: CPU1 sig=0x6fd, pf=0x80, revision=0xa3
Jan 22 01:05:27 lasan kernel: platform microcode: firmware: requesting intel-ucode/06-0f-0d
....


This doesn't happen with the zen4 kernel.
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PostPosted: Fri Jan 22, 2010 12:31 am    Post subject: Reply with quote

I, too have the sound issue, only on core-too. Pappy-lap takes it in stride. I am using an Envy24 device with core-too, and pappy-lap has an Intel HDA (conexant chip). The sound is slow, ie flat, and has skips in it every few seconds. There is nothing worse than Rush or King Diamond skipping.

Is there a bug report on this yet?

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PostPosted: Fri Jan 22, 2010 12:36 am    Post subject: Reply with quote

pappy,

try to do the following things:

1) disabling pulseaudio

2) executing powertop and see whether a driver makes the cpu go nuts (lots of wake-ups), then unload that one [for me it was ohci1394]

besides that I re-compiled my kernel with some aggressive CFLAGS (which I wouldn't recommend to anyone) which seem to have improved it, too


hope that helps ! :)


edit:

this problem really needs to be fixed soon

it gets triggered almost all the time by using google-chrome-bin and youtube with HTML5 video :(

edit2:

2.6.33-rc5 got tagged

please try to avoid including alsa from next (that's an experimental tree, right ? - if it's not really needed) - thanks !
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PostPosted: Fri Jan 22, 2010 7:21 am    Post subject: Reply with quote

Actually, I'm pretty sure this is an ALSA only issue. I say that because when switching from a .30 to the .33, or vice versa, I see errors that come up at boot time. A reboot into the same kernel version does not cause the same issues.

Once in the .33 kernel, playing kaffeine results in drop outs, etc. I'm with you on the ALSA thing. Perhaps it's time to go back to the version that works, or fix the newly broken version.

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PostPosted: Fri Jan 22, 2010 8:37 am    Post subject: Re: 2.6.32-zen5 Reply with quote

js08 wrote:
sys-apps/microcode-ctl hangs during boot with the 2.6.32-zen5 kernel on my lenovo sl500 laptop.
I got in /var/log/messages the following lines (nothing special...)

Quote:

Jan 22 01:04:27 lasan kernel: microcode: CPU0 sig=0x6fd, pf=0x80, revision=0xa3
Jan 22 01:04:27 lasan kernel: platform microcode: firmware: requesting intel-ucode/06-0f-0d
Jan 22 01:05:27 lasan kernel: microcode: CPU1 sig=0x6fd, pf=0x80, revision=0xa3
Jan 22 01:05:27 lasan kernel: platform microcode: firmware: requesting intel-ucode/06-0f-0d
....


This doesn't happen with the zen4 kernel.


further investigation shows that the system does not really hang. It needs at least more than 2 minutes during boot to execute microcode update... and it happens with a gentoo kernel (2.6.32-r2) too.
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PostPosted: Fri Jan 22, 2010 11:54 am    Post subject: Reply with quote

With alsa, i dont see any errors on boot, but the first time i booted the new kernel i didnt notice it either, so it may have been there. I only noticed it when i went to use it and audacious2 appeared to be working, but i didnt have any sound. Once i ran alsaconf, all was back. I have an intel ICH4 board, with the intel8x0 driver as a module.
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PostPosted: Fri Jan 22, 2010 5:33 pm    Post subject: Reply with quote

Is this still happening with the massive alsa update that i pulled in yesterday? If it is, i'll revert the -next alsa today.
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