[Bug 270798] Re: lockups with default (hpet) clocksource on 2.6.27-2-generic 64-bit

[b666m]

update 2:

after some attempts i was able to detect the sources of my lock-ups and
firefox crashes.

--------------------

problem:
firefox (flashplugin) crashes.

description:
i had the 64bit beta flashplugin from the adobe website installed like it's mentioned in some wikis (ubuntuusers.de and so on).
(my testing site for the crashes was http://ritter-sport.de/ - i don't know why it happened all the time on this site but you could test your flashplugin there too)

solution:
so i uninstalled this plugin and did the "normal" way of installing it: 
sudo apt-get install flashplugin-installer 

i think this is the default 32bit flashplugin but now my crashes are
gone.

--------------------

problem:
(firefox) system lock-ups.

description:
the problem above with the crashes happened usually.
but on some other websites my complete system got unresponsive - the screen was filled with one color (mostly black) and i wasn't able to do anything (couldn't change my session with ctrl + alt + fx or end firefox with alt + f4). the only thing i could do was holding down my powerbutton and boot the system again.

way to the solution:
after going through all the logs i found some lines in the syslog which got my attention immediately like the hpet ones:
xb666mx kernel: [190180.347589] radeon 0000:02:00.0: ffff880001c29c00 reserve failed for wait
xb666mx kernel: [190312.551879] radeon 0000:02:00.0: ffff880001c29c00 reserve failed for wait
xb666mx kernel: [190361.440415] radeon 0000:02:00.0: ffff880001c29c00 reserve failed for wait
xb666mx kernel: [190527.753603] radeon 0000:02:00.0: ffff880001c29c00 reserve failed for wait
xb666mx kernel: [190813.144151] radeon 0000:02:00.0: ffff880001c29c00 reserve failed for wait
xb666mx kernel: [190903.010767] radeon 0000:02:00.0: ffff880001c29c00 reserve failed for wait
xb666mx kernel: [190904.408506] radeon 0000:02:00.0: ffff880001c29c00 reserve failed for wait

firstly i was still using the open source driver for my ati radeon because it was recommened to use it as long as no errors/problems occur and it was okay because it is already capable of displaying 3d content as i need it for my compiz fusion desktop.
secondly i used it because this is my second installation of lucid and in the first one the proprietary ati driver lead to some problems. on startup it used (and still uses) the wrong solution (it's looking horrible). and it seemed that the ati driver has some conflicts with my wlan driver (i think it's named "wl") on my dell wireless mini 1397 card because the driver was not loaded about 3 of 5 times at startup. (i'm not actually sure anymore if this was the reason for that because now it seems to work like a charme)

solution: 
in short i just installed the proprietary ati driver "flgrx".
the simpliest way to do this is:
System --> Systemadministration --> Hardware Driver

after that my solution at startup is still messed up but i don't have any problems with freezes anymore since then.
(and i think the solution can be configured anywhere but i didn't look for that until now - but i will)

--------------------

the hpet increasing stuff is still there.
and in my opinion it shouldn't be there too.
but on my system it doesn't seem to do anything nasty at all.

-- 
lockups with default (hpet) clocksource on  2.6.27-2-generic 64-bit
https://bugs.launchpad.net/bugs/270798
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux in ubuntu.