https://bugzilla.kernel.org/show_bug.cgi?id=26812
Summary: Radeon module causes hard reset on modprobe Product: Drivers Version: 2.5 Kernel Version: 2.6.37-git9 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) AssignedTo: drivers_video-dri@kernel-bugs.osdl.org ReportedBy: mjevans1983@gmail.com Regression: No
I'm using the git snapshots between when Linus merged from drm-core-next and when network drivers were merged (breaks build).
If there is a better patch relative to a released source I'll gladly test it too; however the other sources I tried also had similar issues.
When radeon.ko (or build in init) starts the screens blank and a few seconds later the system completely reboots. This is 100% repeatable.
I have firmware from Arch's (AUR) linux-firmware-git package installed, /lib/firmware pointed as the source, and the relevant blobs for the recent ATI/AMD GPUs.
When built as a module I can modprobe radeon to trigger the exact same behavior.
Problems debugging: * It resets so hard there isn't a peep from netconsole. * It resets so hard that my disks loose md raid sync and need to completely rebuild (yeah, I know, I'll add a write-intent log before I test this again next time...; it wasn't an issue before I got the brainwave of making it a module to try to give netconsole/syslog time to get setup.)
How can I possibly approach isolating this? Even a link to the correct documentation would be helpful.