Re: [PATCH v3 0/9] fsldma: lockup fixes

2011-03-04 Thread Felix Radensky
Hi Ira, I've successfully tested this version on P2020RDB, with 10 threads per channel, 10 iterations per thread. Tested-by: Felix Radensky Felix. ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linux

[PATCH v3 0/9] fsldma: lockup fixes

2011-03-03 Thread Ira W. Snyder
Hello everyone, I've been chasing random infrequent controller lockups in the fsldma driver for a long time. I finally managed to find the problem and fix it. I'm not quite sure about the exact sequence of events which causes the race condition, but it is related to using the hardware registers to