https://bugs.freedesktop.org/show_bug.cgi?id=36003
--- Comment #13 from Ap. Syvertsen <[email protected]> 2011-05-26 02:52:21 PDT --- (In reply to comment #12) Okay, first of all I'm not a developer but I've been pouring over the logs posted at launchpad (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/727620) and this is what I notice: The crash seems to happen during the loading of the microcode, Redwood for HD560, RV710 for the HD3650. On a normal boot the detected VRAM in kern.log is 512M, which is the amount of dedicated graphic memory, and the Microcode loading happens as follows: [ 21.896251] [drm] Loading RV710 Microcode [ 21.909170] radeon 0000:01:00.0: WB enabled [ 21.955754] [drm] ring test succeeded in 1 usecs On a bad boot however the detected VRAM shown in kern.log is 3584M, which is more than the actual amount of "HyperMemory" these graphic cards. The loading of the Microcode then crashes: [ 21.511875] [drm] Loading RV710 Microcode [ 21.722682] radeon 0000:01:00.0: Wait for MC idle timedout ! [ 21.924181] radeon 0000:01:00.0: Wait for MC idle timedout ! [ 21.927041] radeon 0000:01:00.0: WB enabled [ 21.973606] BUG: unable to handle kernel paging request at ffffc90405701ffc the two "Wait for MC idle timedout !" and the amount of VRAM detected is very consistent with the crashing. On a bad boot, the following line is also displayed right before the detected VRAM is displayed for the first time (never on a good boot): [ 21.510435] radeon 0000:01:00.0: limiting VRAM On my HD5650 with Redwood Microcode, i also get a GPU softreset after the ATOM bios is loaded, right before the limiting VRAM event. Is there any special order of loading modules, either related to the kernel or the driver that would cause this chain of event and discrepancy? Feel free to ask if you need more info. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
