On Tue, Nov 22, 2011 at 12:15:24PM +0200, Meelis Roos wrote: > 3.0 worked fine, 3.1-rc9 worked fine, I think -rc10 too. 3.1 release > hangs in random places while using X. > > Core i5 660, lspci below. Running 64-bit Debian unstable. > > lspci -nn > > 00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller [8086:0040] (rev 02) > 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0042] (rev 02) > 00:16.0 Communication controller [0780]: Intel Corporation 5 Series/3400 Series Chipset HECI Controller [8086:3b64] (rev 06) > 00:16.3 Serial controller [0700]: Intel Corporation 5 Series/3400 Series Chipset KT Controller [8086:3b67] (rev 06) > 00:19.0 Ethernet controller [0200]: Intel Corporation 82578DM Gigabit Network Connection [8086:10ef] (rev 05) > 00:1a.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b3c] (rev 05) > 00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio [8086:3b56] (rev 05) > 00:1c.0 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 [8086:3b42] (rev 05) > 00:1c.4 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 [8086:3b4a] (rev 05) > 00:1c.6 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 7 [8086:3b4e] (rev 05) > 00:1d.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b34] (rev 05) > 00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev a5) > 00:1f.0 ISA bridge [0601]: Intel Corporation 5 Series Chipset LPC Interface Controller [8086:3b0a] (rev 05) > 00:1f.2 SATA controller [0106]: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller [8086:3b22] (rev 05) > 3f:00.0 Host bridge [0600]: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers [8086:2c61] (rev 05) > 3f:00.1 Host bridge [0600]: Intel Corporation Core Processor QuickPath Architecture System Address Decoder [8086:2d01] (rev 05) > 3f:02.0 Host bridge [0600]: Intel Corporation Core Processor QPI Link 0 [8086:2d10] (rev 05) > 3f:02.1 Host bridge [0600]: Intel Corporation Core Processor QPI Physical 0 [8086:2d11] (rev 05) > 3f:02.2 Host bridge [0600]: Intel Corporation Core Processor Reserved [8086:2d12] (rev 05) > 3f:02.3 Host bridge [0600]: Intel Corporation Core Processor Reserved [8086:2d13] (rev 05) > > > Bisected it to the following commit. Bisection may not be 100% correct > because the issue happens at random, and most of the "good" revisions > got some usage without problems. The "bad" bisects are the ones that > hang. > > 6fbcfb3e467adb414e235eeefaeaf51ad12f2461 is the first bad commit > commit 6fbcfb3e467adb414e235eeefaeaf51ad12f2461 > Author: David Woodhouse <dwmw2@xxxxxxxxxxxxx> > Date: Sun Sep 25 19:11:14 2011 -0700 > > intel-iommu: Workaround IOTLB hang on Ironlake GPU > > To work around a hardware issue, we have to submit IOTLB flushes while > the graphics engine is idle. The graphics driver will (we hope) go to > great lengths to ensure that it gets that right on the affected > chipset(s)... so let's not screw it over by deferring the unmap and > doing it later. That wouldn't be very helpful. > > Signed-off-by: David Woodhouse <David.Woodhouse@xxxxxxxxx> Can you retry with Keith's latest drm-intel-fixes, please? This workaround turned out to be a bit buggy, unfortunately. It's strange though that your bisect ended up on this commit, so maybe it's something else. Also please attach the full dmesg of a broken kernel (before it hangs). Thanks, Daniel -- Daniel Vetter Mail: daniel@xxxxxxxx Mobile: +41 (0)79 365 57 48 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
