Looks like this has been resolved by some update, no hangs for a few weeks. Don't know what the problem was, but the last "[drm] stuck on render ring" entry in the logs is from april 27th:
Apr 27 09:23:53 chieftec kernel: [60145.969920] [drm] stuck on render ring Apts history log for the 27th contains these upgrades: Start-Date: 2014-04-27 06:32:28 Commandline: /usr/bin/apt-get upgrade Upgrade: python-samba:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), winbind:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), samba:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), xserver-xorg-core:amd64 (1.15.0.901-1, 1.15.1-1), samba-dsdb-modules:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), libnss-winbind:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), xserver-common:amd64 (1.15.0.901-1, 1.15.1-1), samba-common-bin:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), samba-libs:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), libpam-winbind:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), libwbclient0:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), samba-vfs-modules:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), samba-common:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2), libsmbclient:amd64 (4.1.6+dfsg-1, 4.1.7+dfsg-2) End-Date: 2014-04-27 06:32:40 The machine was (re)booted at Apr 27 09:25:08. I'm guessing that one of the xserver updates solved the problem. 2014-04-17 19:25 GMT+02:00 Daniel Lindgren <dali.s...@gmail.com>: > Package: libdrm2 > Version: 2.4.52-1 > Severity: important > > Dear Maintainer, > > Graphics hangs intermittently in Debian testing, this was in dmesg after > several seconds of non responsive graphics: > > [ 430.954914] [drm] stuck on render ring > [ 430.954918] [drm] GPU crash dump saved to /sys/class/drm/card0/error > [ 430.954919] [drm] GPU hangs can indicate a bug anywhere in the entire > gfx > stack, including userspace. > [ 430.954920] [drm] Please file a _new_ bug report on > bugs.freedesktop.org > against DRI -> DRM/Intel > [ 430.954920] [drm] drm/i915 developers can then reassign to the right > component if it's not a kernel issue. > [ 430.954921] [drm] The gpu crash dump is required to analyze gpu hangs, > so > please always attach it. > [ 430.957326] [drm:i915_set_reset_status] *ERROR* render ring hung inside > bo > (0x316e000 ctx 1) at 0x316e004 > > There are also various graphics issues, e g the mouse cursor often becomes > a > square block of lines. > > Tried reporting the bug at bugs.freedesktop.org but their bugzilla is > broken(!). > > Tried attaching GPU crash dump to this report, wasn't allowed. > > Debian package info: > > Package: xorg > Version: 1:7.7+7 > Architecture: amd64 > > Package: xserver-xorg-video-intel > Source: xserver-xorg-video-intel (2:2.21.15-2) > Version: 2:2.21.15-2+b1 > Architecture: amd64 > > Package: libdrm2 > Source: libdrm > Version: 2.4.52-1 > Architecture: amd64 > > Package: libdrm-intel1 > Source: libdrm > Version: 2.4.52-1 > Architecture: amd64 > > > > -- System Information: > Debian Release: jessie/sid > APT prefers testing > APT policy: (500, 'testing') > Architecture: amd64 (x86_64) > > Kernel: Linux 3.13-1-amd64 (SMP w/4 CPU cores) > Locale: LANG=sv_SE.UTF-8, LC_CTYPE=sv_SE.UTF-8 (charmap=UTF-8) > Shell: /bin/sh linked to /bin/dash > > Versions of packages libdrm2 depends on: > ii libc6 2.18-4 > ii multiarch-support 2.18-4 > > libdrm2 recommends no packages. > > libdrm2 suggests no packages. >
