| === bluefoxicy [n=bluefox@c-68-33-112-13.hsd1.md.comcast.net] has joined #ubuntu-kernel | ||
| bluefoxicy | Hi | 01:23 |
|---|---|---|
| bluefoxicy | this may be a stupid question | 01:23 |
| bluefoxicy | but should running mplayer on a half-corrupted wmv file cause it to stop, complain it died | 01:24 |
| bluefoxicy | and then if you hit "OK" so it exits OR kill -9 it | 01:24 |
| bluefoxicy | the kernel decides it's time to have a fit and hard-lock? | 01:24 |
| bluefoxicy | (i.e. apparently mplayer caused kernel memory corruption) | 01:24 |
| crimsun | that shouldn't be possible | 01:33 |
| bluefoxicy | crimsun: ok, I think the ubuntu amd64 kernels in dapper need some nice looking at then. Are you guys using any weird patches? | 01:36 |
| crimsun | heh, what do you call "weird?" | 01:37 |
| bluefoxicy | or anything aside from drivers that's experimental? | 01:37 |
| bluefoxicy | crimsun: well, if it does something to the kernel's source tree, it's weird. | 01:37 |
| crimsun | well by that classification, everything that's patched is done by something weird, which is some non-negligible amount of source | 01:38 |
| bluefoxicy | there's a specific reason why the linux mainline kernel is what it is. Additional drivers are pop in and out; but modifications to the VM system, initialization routines, VFS subsystem, CPU schedulers, or the like that aren't backported bugfixes are DISTINCTLY odd | 01:38 |
| bluefoxicy | crimsun: if it's a bug in something you added, I can't go to the LKML and report it; otherwise I can just bounce it at them | 01:39 |
| crimsun | the kernel isn't precisely the first place I'd look for an oops caused by mplayer | 01:40 |
| bluefoxicy | If I bring them something and say "Oh there's some odd patches in ubuntu's kernel like the hard-deadline-scheduler and the memory-split-merge-mapper and ingo molnar's realtime patches" they'll go "THEN DON'T ASK US!" :( | 01:40 |
| crimsun | do you have ksymoops output? | 01:40 |
| bluefoxicy | crimsun: it's not an oops. | 01:40 |
| crimsun | how are you ascertaining it's not an oops if you get a hard lock? | 01:41 |
| bluefoxicy | mplayer sits there fine; then when I send kill -9 at it, the box drops straight off network, the mouse stops working, sound stops playing, hard disk stops, the screen stays as is, keyboard won't work. . . | 01:41 |
| bluefoxicy | crimsun: because an oops is a condition where the kernel says, "Oops," and keeps on going. | 01:41 |
| bluefoxicy | The most kernel-aware activity this could be is a panic | 01:41 |
| bluefoxicy | which is where the kernel says "HOLY SHIT" and stops | 01:42 |
| crimsun | that doesn't mean you don't have an oops and then a panic | 01:42 |
| crimsun | in any case, can you reliably reproduce it? | 01:42 |
| bluefoxicy | well, I guess I could cause one and see | 01:42 |
| bluefoxicy | but I'm a little shakey | 01:42 |
| bluefoxicy | every 2 or 3 hard-locks, gnome's settings reset. | 01:42 |
| bluefoxicy | applet configurations go, background goes, xchat-gnome settings reset, gnome-terminal settings reset, startup programs reset, rhythmbox settings reset. . | 01:43 |
| crimsun | the first thing I'd do is try with an ia32 kernel | 01:43 |
| bluefoxicy | anything stored in the ~/.* directories for the apps stays there | 01:43 |
| === bluefoxicy doesn't have IA32 ubuntu installed | ||
| bluefoxicy | I had IA32 dapper installed, it was stable | 01:44 |
| crimsun | which kernel with ia32? | 01:44 |
| bluefoxicy | the x86-64 kernels are being a real pain | 01:44 |
| bluefoxicy | I had i686 up to 2.6.15-14 | 01:44 |
| bluefoxicy | then i installed a 64-bit base. | 01:44 |
| crimsun | so do flight 2 amd64 or flight 3 amd64 have this issue? | 01:45 |
| bluefoxicy | no idea. | 01:45 |
| bluefoxicy | oh | 01:45 |
| === bluefoxicy facepalm | ||
| bluefoxicy | I most likely know where the problem is anyway | 01:46 |
| bluefoxicy | I keep forgetting, I'm using the via driver in xorg | 01:47 |
| bluefoxicy | and it seems to be really bitchy | 01:47 |
| bluefoxicy | but I don't see how that could be linked to killing mplayer. . . | 01:47 |
| bluefoxicy | Feb 23 14:30:05 localhost kernel: [ 8564.581410] RIP: 0010:[_end+134114922/2132357120] <ffffffff88453e6a>{:via:via_mmFreeMem+10} | 01:47 |
| bluefoxicy | This is where every single oops I've had has happened. | 01:48 |
| bluefoxicy | like ever | 01:48 |
| bluefoxicy | so I'm assuming there's a bigger bug around there that's causing a panic or hard-lock | 01:48 |
| bluefoxicy | crimsun: I can't make the logical link between "killall -9 gmplayer" and "Hard lock," but that's a starting point. There's no logs of kernel panics (for a specific reason-- the kernel halts immediately) | 01:49 |
| bluefoxicy | for now I'm getting off the via driver. | 01:50 |
| === bluefoxicy [n=bluefox@c-68-33-112-13.hsd1.md.comcast.net] has joined #ubuntu-kernel | ||
| bluefoxicy | ok my test data to reproduce it is gone now damn. | 01:53 |
| === BenC [n=bcollins@debian/developer/bcollins] has joined #ubuntu-kernel | ||
| === j_ack [n=nico@p508D938E.dip0.t-ipconnect.de] has joined #ubuntu-kernel | ||
| === TheMuso [n=luke@dsl-202-173-132-131.nsw.westnet.com.au] has joined #ubuntu-kernel | ||
| === crimsun [n=crimsun@pdpc/supporter/silver/crimsun] has joined #ubuntu-kernel | ||
| mjg59 | infinity: It's supposed to - we should probably work out what's up (swsusp) | 10:54 |
| === CataEnry [n=cataenry@host92-11.pool8261.interbusiness.it] has joined #ubuntu-kernel | ||
| === TheMuso [n=luke@dsl-202-173-132-131.nsw.westnet.com.au] has joined #ubuntu-kernel | ||
| === TheMuso [n=luke@dsl-202-173-132-131.nsw.westnet.com.au] has joined #ubuntu-kernel | ||
| === jane_ [n=JaneW@dsl-146-161-84.telkomadsl.co.za] has joined #ubuntu-kernel | ||
| === TheMuso [n=luke@dsl-202-173-132-131.nsw.westnet.com.au] has joined #ubuntu-kernel | ||
| infinity | mjg59: Well, check recent threads on ubuntu-users. Several users claim that adding RAM to their machine breaks swsusp (and removing it again to drop below 1GB fixes it) | 12:26 |
| === smurf [n=smurf@run.smurf.noris.de] has joined #ubuntu-kernel | ||
| === doko [n=doko@dslb-084-059-116-248.pools.arcor-ip.net] has joined #ubuntu-kernel | ||
| makx | there swap might be to small | 03:49 |
| bluefoxicy | swsusp could be better designed though | 04:46 |
| bluefoxicy | halt programs, flush disk buffers (so file system is consistent), check how much swap is free vs how much memory is used | 04:47 |
| bluefoxicy | if there's not enough swap, see if there's enough space on / for the rest, if yes then create a swsusp file there and make note of it in the swap partition | 04:48 |
| bluefoxicy | flush to swap, flush remaining to the new inode on /, flush disk buffers, and halt | 04:48 |
| bluefoxicy | when coming back up, look for something that claims there's an inode holding a swsusp file. If there's one there, load that entirely into RAM and unlink the inode | 04:48 |
| bluefoxicy | a little less lazy, but it would be possible. | 04:49 |
| bluefoxicy | but that's out of scope. | 04:49 |
| bluefoxicy | makx is probably right, they probably get like a gig and a half of application memory used and have a gig of swap. | 04:49 |
| bluefoxicy | SHIT. I can't run apt. | 04:53 |
| bluefoxicy | gotta reboot I guess. | 04:53 |
| mjg59 | infinity: Hnngh. | 05:16 |
| === desrt [n=desrt@dhcp-0-20-af-d2-7c-3.cpe.mountaincable.net] has joined #ubuntu-kernel | ||
| === bluefoxicy [n=bluefox@c-68-33-112-13.hsd1.md.comcast.net] has joined #ubuntu-kernel | ||
| bluefoxicy | I can say with 95% certainty at this point that the bug was in the via dri code in the kernel. | 09:48 |
| bluefoxicy | if I stay up for another day, I'll promote that to 99% | 09:48 |
| bluefoxicy | I've had no oopses since boot and no crashes | 09:49 |
| === ispiked [n=ispiked@unaffiliated/ispiked] has joined #ubuntu-kernel | ||
| desrt | oh where oh where is benc | 10:19 |
| === netzmeister [n=netzmeis@p549FA3B8.dip0.t-ipconnect.de] has joined #ubuntu-kernel | ||
| === TheMuso [n=luke@dsl-202-173-132-131.nsw.westnet.com.au] has joined #ubuntu-kernel | ||
| === BenC [n=bcollins@debian/developer/bcollins] has joined #ubuntu-kernel | ||
| === BenC [n=bcollins@debian/developer/bcollins] has joined #ubuntu-kernel | ||
| === desrt tackles BenC | ||
| === BenC doges and runs for the touchdown | ||
| === crimsun [n=crimsun@pdpc/supporter/silver/crimsun] has joined #ubuntu-kernel | ||
Generated by irclog2html.py 2.7 by Marius Gedminas - find it at mg.pov.lt!