Comment 63 for bug 541511

Revision history for this message
In , Thorsten-thvo (thorsten-thvo) wrote :

Daniel, I tested your patch (v6) on an 852GME. Being very similar to the 855, the 852 also suffers from this bug. The GPU hangs frequently with all recent kernels. With your patch applied, I have not seen any hangs, nor any messages about failed flushes. The graphics performance is noticeably reduced though.

Tested-by: Thorsten Vollmer <email address hidden> (DFI-ACP G5M150-N w/ 852GME)

BTW: I was surprised to read that you are using an X40, because I would never have discovered this bug on my X40, my second machine. I have been using it for weeks with unpatched kernels and never saw any hangs. At first I hoped that my X40 was not affected and we could compare register settings. But with your patch applied, the kernel reports some flush retries. The frequency of failed flushes must be very low though.

I appreciate your work on this issue. Thanks.