Robert Högberg wrote: > Hello. > > I'm trying to debug an issue I'm having with my Via CN400 board. The problem > I see is that every time I watch a specific DVD using XvMC the display > freezes completely after a short time. > > The freeze seems to be caused by a failing via_cmdbuf_wait. I don't > understand why it fails, but it fails with the error message: > *ERROR* via_cmdbuf_wait timed out hw 32700 cur_addr 400 next_addr 87678 > > And all following calls give the same output. It never recovers. > > Any ideas where I should look now? If the buffer isn't emptied as expected, > is it a hardware problem? There seems to be no error handling in > via_cmdbuf_jump if via_cmdbuf_wait fails. Is it missing or is this situation > so fatal that it can't be fixed or is it ok to just move along and ignore the > problem? > > There's also a pretty huge delay inside via_cmdbuf_wait. In a worst case > scenario it will sleep 1000000*1ms (1000 seconds). Is that how it should be? > Seems strange to me. > > All hints are appreciated! > > /Robert >
Hi, Robert. What you're seeing is a GPU hang, Either because of a bug in the kernel module or perhaps a hardware bug. The AGP DMA code is a bit shaky in the via drm. That has been fixed in the experimental openChrome drm, (but that driver suite doesn't support XvMC yet). The fixes haven't been ported over. /Thomas > ------------------------------------------------------------------------------ > The Planet: dedicated and managed hosting, cloud storage, colocation > Stay online with enterprise data centers and the best network in the business > Choose flexible plans and management services without long-term contracts > Personal 24x7 support from experience hosting pros just a phone call away. > http://p.sf.net/sfu/theplanet-com > -- > _______________________________________________ > Dri-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/dri-devel > ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com -- _______________________________________________ Dri-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dri-devel
