Chris Ball <[email protected]> writes: > Hi, > > Here's a patch to add support for KMS debugging to Nouveau, along the > style of the previous patches for Intel¹ and Radeon². I'm only able > to test on nv50 here, so a test on nv04 would be much appreciated, > and I've published instructions on how to test here³. Thanks! > There is a problem with this on pre-nv20 cards. Fbcon acceleration won't work properly with IRQs disabled because you miss the context switching interrupts: You'll get a locked up fbcon if you hit sysrq-g when there's some process using the GPU.
I'd suggest disabling acceleration while in debug mode (e.g. using nouveau_fbcon_save_disable_accel()). That aside the patch looks good to me. > - Chris. > > ¹: http://lkml.org/lkml/2010/8/5/280 > ²: http://dev.laptop.org/~cjb/kdb-radeon.patch > ³: http://blog.printf.net/articles/2010/08/19/kdb-kms-for-nouveau-radeon > > > [...]
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