On 2016-12-15 11:10 -0200, Leandro Dutra wrote: > spagove...@gmail.com, Fri, 29 May 2015 09:35:42: >> dmesg:[ 68.627296] nouveau E[ PBUS][0000:00:0d.0] MMIO write of> > x00820001 FAULT at 0x00b000 >> I've had the same here, with a C61 onboard chip.The next message, >> caught with a serial console just before freezingwith a sheared >> pattern on the screen, is: >> nouveau E[ PBUS][0000:00:0d.0] MMIO write of 0x010c0001 FAULT at 0x00b010 >> They're caused the following line in core/engine/mpeg/nv31.c:194: >> nv_wr32(priv, 0x00b008 + (i * 0x10), tile->pitch); >> So, disabling just the mpeg engine in core/engine/device/nv40.c did >> the trickfor me: no more freezing or fault messages in dmesg. >> For now, I think that's better than going full nouveau.noaccel=1. >> Patch is just for the 0x4c/C61 chipset; the same could be done for other >> chipsets. > > > --- linux-source-3.16/drivers/gpu/drm/nouveau/core/engine/device/nv40.c~ > 2015-05-29 09:12:37.876649108 +0300 > +++ linux-source-3.16/drivers/gpu/drm/nouveau/core/engine/device/nv40.c > 2015-05-29 09:17:10.716649906 +0300 > @@ -322,7 +322,9 @@ nv40_identify(struct nouveau_device *dev > device->oclass[NVDEV_ENGINE_FIFO ] = nv40_fifo_oclass; > device->oclass[NVDEV_ENGINE_SW ] = nv10_software_oclass; > device->oclass[NVDEV_ENGINE_GR ] = &nv40_graph_oclass; > + /* XXX > device->oclass[NVDEV_ENGINE_MPEG ] = &nv44_mpeg_oclass; > + */ > device->oclass[NVDEV_ENGINE_DISP ] = nv04_disp_oclass; > device->oclass[NVDEV_ENGINE_PERFMON] = nv40_perfmon_oclass; > break; > > > Seems like this patch was lost?
Seems so, indeed. Meanwhile, the nouveau kernel module has been completely reorganized. > Found no mention of it in http://bugs.debian.org/758460 Because, like your message, it was sent to the list rather than the bug report. :-( Cheers, Sven
