On 14.05.2017 16:02, Dmitry Osipenko wrote: > On 14.05.2017 14:53, Mikko Perttunen wrote: >> On 05/12/2017 10:00 PM, Dmitry Osipenko wrote: >>> The start = 0 is invalid and causes weird CDMA channel timeouts, presumably >>> some memory misuse/corruption is going on. >> >> What makes you think start = 0 is invalid? I can't see anything pointing to that >> in the idr code and there are many users in the kernel passing 0 as start. >> > > Well, I can't see either. You are right that there are quite many others with 0 > as a start, the 1 probably just masks the bug. > Finally, I found the root of the issue. The job->client is set to the context ID in the tegra_drm_submit() and the host1x_cdma sets client ID to 0 to mark CDMA job timeout timer as already armed. I'll send V2 with a new commit description. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
