Package: linux-image-3.2.0-4-amd64 Version: 3.2.73-1 Severity: critical Hi,
This morning I updated my Dell D630 laptop running Debian Wheezy; upon reboot the video got stuck on a black screen with only the mouse visible, but not moving. Upon quick investigation it appears to be a kworker thread getting stuck: Nov 23 09:12:25 kernel: [ 8.919834] Process kworker/u:1 (pid: 168, threadinfo ffff880119314000, task ffff8801192d3840) Nov 23 09:12:25 kernel: [ 8.919995] ffffffffa02d4685 0000000000000046 ffff880119f38000 ffff880119540000 Nov 23 09:12:25 kernel: [ 8.920115] ffff880119f39770 0000000000000001 ffff880119d37c05 ffff880119540020 Nov 23 09:12:25 kernel: [ 8.920115] ffffffffa02d618b ffff880119f39780 ffff880119540000 0000000000000000 Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffffa02d4685>] ? i915_gem_retire_requests_ring+0x15/0x172 [i915] Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffffa02d618b>] ? i915_gem_retire_requests+0x68/0x78 [i915] Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffffa02d61f3>] ? i915_gem_retire_work_handler+0x58/0x122 [i915] Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffff8105b7eb>] ? process_one_work+0x161/0x269 Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffff8105c7b4>] ? worker_thread+0xc2/0x145 Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffff8105c6f2>] ? manage_workers.isra.25+0x15b/0x15b Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffff8105f901>] ? kthread+0x76/0x7e Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffff81358d34>] ? kernel_thread_helper+0x4/0x10 Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffff8105f88b>] ? kthread_worker_fn+0x139/0x139 Nov 23 09:12:25 kernel: [ 8.920115] [<ffffffff81358d30>] ? gs_change+0x13/0x13 Nov 23 09:12:25 kernel: [ 8.920115] RSP <ffff880119315dc8> This issue appears to have been reported to the LKML already: https://lkml.org/lkml/2015/10/1/861 The kernel was updated from 3.2.68-1+deb7u3 to 3.2.73-1. According to the package's changelog (http://metadata.ftp-master.debian.org/changelogs//main/l/linux/linux_3.2.73-1_changelog) the issue may have been introduced in version 3.2.71-1: [ Ben Hutchings ] * drm, agp: Update to 3.4.109: [...] - drm/radeon: Use drm_calloc_ab for CS relocs This is the exact commit pointed out as the culprit in the reply to the LKML post I pointed out. As expected, downgrading the package back to 3.2.68-1+deb7u3 resolved the issue NB: I set the severity as critical considering it renders the system unusable (you have to ssh in if enabled; possibly booting up in text mode might work too) and the update replaces the old, working, kernel so that you can't just pick an older version in Grub. Regards, -- Thomas
