Syslog output for video pausing for two occurances: Oct 28 23:51:54 CI5 kernel: [27023.619834] [drm:i915_hangcheck_elapsed] *ERROR* stuck on bsd ring Oct 28 23:51:54 CI5 kernel: [27023.619843] [drm] capturing error event; look for more information in /sys/kernel/debug/dri/0/i915_error_state Oct 28 23:51:54 CI5 kernel: [27023.623860] [drm:i915_set_reset_status] *ERROR* bsd ring hung inside bo (0x18cdd000 ctx 0) at 0x18cdd650 Oct 29 05:07:09 CI5 kernel: [45960.241818] [drm:i915_hangcheck_elapsed] *ERROR* stuck on bsd ring Oct 29 05:07:09 CI5 kernel: [45960.241874] [drm:i915_set_reset_status] *ERROR* bsd ring hung inside bo (0x3328000 ctx 0) at 0x3328650 /sys/kernel/debug/dri/0/i915_error_state output: Time: 1383018714 s 804592 us Kernel: 3.11.0-12-generic PCI ID: 0x0112 EIR: 0x00000000 IER: 0x8ef49181 PGTBL_ER: 0x00000000 FORCEWAKE: 0x00000001 DERRMR: 0x0000ffff CCID: 0x0007010d fence[0] = 9e1f00909e0c003 fence[1] = cfbf0310cf50003 fence[2] = cf4f0310cee0003 fence[3] = f88103b0f08a001 fence[4] = d02f0310cfc0003 fence[5] = 9d9b03109d2c003 fence[6] = 9e0b03109d9c003 fence[7] = cd8f0310cd20003 fence[8] = ce270310cdb8003 fence[9] = 1f0203101e93003 fence[10] = b8ff0310b890003 fence[11] = 1f5202701f03003 fence[12] = 1fc203101f53003 fence[13] = 1fd600901fc3003 fence[14] = 904003108fd1003 fence[15] = d87303b0d07c001 INSTDONE_0: 0xffffffff INSTDONE_1: 0xbfffffff INSTDONE_2: 0x00000000 INSTDONE_3: 0x00000000 ERROR: 0x00000000 DONE_REG: 0x00000000 render command stream: HEAD: 0xd5e0fffc TAIL: 0x00010570 CTL: 0x0001f401 ACTHD: 0xd5e0fffc IPEIR: 0x00000000 IPEHR: 0x0b140001 INSTDONE: 0xffffffff BBADDR: 0x10502108000010b INSTPS: 0x8000010b INSTPM: 0x00000080 FADDR: 0x00011180 RC PSMI: 0x00000010 FAULT_REG: 0x00000000 SYNC_0: 0x00881a40 [last synced 0x00000000] SYNC_1: 0x00881b87 [last synced 0x0071d80a] seqno: 0x00881b86 waiting: yes ring->head: 0x00015ca8 ring->tail: 0x00010570 bsd command stream: HEAD: 0x2e00f7c8 TAIL: 0x0000ff40 CTL: 0x0001f001 ACTHD: 0x18cdd650 IPEIR: 0x00000008 IPEHR: 0x73280003 INSTDONE: 0xffa5cc7f INSTPS: 0x00000000 INSTPM: 0x00000000 FADDR: 0x18cdd800 RC PSMI: 0x00000010 FAULT_REG: 0x00000000 SYNC_0: 0x00881b87 [last synced 0x00000000] SYNC_1: 0x00881b86 [last synced 0x00000000] seqno: 0x00881a40 waiting: no ring->head: 0x0000b8f0 ring->tail: 0x0000ff40 blt command stream: HEAD: 0x2ee0a110 TAIL: 0x0000a110 CTL: 0x0001f001 ACTHD: 0x2ee0a110 IPEIR: 0x00000000 IPEHR: 0x01000000 INSTDONE: 0xfffffffe INSTPS: 0x00000000 INSTPM: 0x00000000 FADDR: 0x0004e110 RC PSMI: 0x00000018 FAULT_REG: 0x00000000 SYNC_0: 0x00881b86 [last synced 0x00000000] SYNC_1: 0x00881a40 [last synced 0x00881b87] seqno: 0x00881b87 waiting: no ring->head: 0x0001b018 ring->tail: 0x0000a110 Active [145]: 19481000 12288 36 10 881a55 881a55 dirty purgeable bsd snooped (LLC) 191b3000 131072 37 00 881a55 0 dirty purgeable bsd snooped (LLC) 18cdd000 524288 3f 00 881a55 0 purgeable bsd snooped (LLC) 15db4000 3145728 36 10 881a5d 881a5d Y dirty bsd snooped (LLC) 0ca0f000 12288 36 10 881a5d 881a5d dirty purgeable bsd snooped (LLC) 191a3000 65536 76 00 881a5d 0 dirty purgeable bsd snooped (LLC) 18dea000 524288 3f 00 881a5d 0 purgeable bsd snooped (LLC) 189f9000 12288 36 10 881a73 881a73 dirty purgeable bsd snooped (LLC) 19263000 196608 76 00 881a73 0 dirty purgeable bsd snooped (LLC) 18ef7000 524288 3f 00 881a73 0 purgeable bsd snooped (LLC) 16fb9000 3145728 36 10 881a80 881a80 Y dirty bsd snooped (LLC) 193ba000 12288 36 10 881a80 881a80 dirty purgeable bsd snooped (LLC) 19367000 57344 76 00 881a80 0 dirty purgeable bsd snooped (LLC) 185c2000 524288 3f 00 881a80 0 purgeable bsd snooped (LLC) 16cb9000 3145728 36 10 881a8f 881a8f Y dirty bsd snooped (LLC) 15ab4000 3145728 36 00 881a8f 881a55 Y dirty bsd snooped (LLC) 18eea000 12288 36 10 881a8f 881a8f dirty purgeable bsd snooped (LLC) 19377000 57344 76 00 881a8f 0 dirty purgeable bsd snooped (LLC) 18ffa000 524288 3f 00 881a8f 0 purgeable bsd snooped (LLC) 01e73000 12288 36 10 881a9c 881a9c dirty purgeable bsd snooped (LLC) 192e3000 65536 76 00 881a9c 0 dirty purgeable bsd snooped (LLC) 19484000 524288 3f 00 881a9c 0 purgeable bsd snooped (LLC) 0c70f000 3145728 36 10 881aab 881aab Y dirty bsd snooped (LLC) 13f54000 12288 36 10 881aab 881aab dirty purgeable bsd snooped (LLC) 192b3000 57344 37 00 881aab 0 dirty purgeable bsd snooped (LLC) 0c68f000 524288 3f 00 881aab 0 purgeable bsd snooped (LLC) 163b4000 3145728 36 10 881ab8 881ab8 Y dirty bsd snooped (LLC) 169b9000 3145728 36 00 881ab8 881a73 Y dirty bsd snooped (LLC) 18ff7000 12288 36 10 881ab8 881ab8 dirty purgeable bsd snooped (LLC) 19257000 49152 76 00 881ab8 0 dirty purgeable bsd snooped (LLC) 19584000 524288 3f 00 881ab8 0 purgeable bsd snooped (LLC) 1907a000 12288 36 10 881ac6 881ac6 dirty purgeable bsd snooped (LLC) 19704000 65536 37 00 881ac6 0 dirty purgeable bsd snooped (LLC) 19714000 524288 3f 00 881ac6 0 purgeable bsd snooped (LLC) 18664000 3145728 36 10 881acf 881acf Y dirty bsd snooped (LLC) 0c61c000 12288 36 10 881acf 881acf dirty purgeable bsd snooped (LLC) 19794000 57344 37 00 881acf 0 dirty purgeable bsd snooped (LLC) 197a2000 524288 3f 00 881acf 0 purgeable bsd snooped (LLC) 018d7000 3145728 36 10 881ae5 881ae5 Y dirty bsd snooped (LLC) 160b4000 3145728 36 00 881ae5 881a9c Y dirty bsd snooped (LLC) 18ddd000 12288 36 10 881ae5 881ae5 dirty purgeable bsd snooped (LLC) 19a22000 57344 37 00 881ae5 0 dirty purgeable bsd snooped (LLC) 19a30000 524288 3f 00 881ae5 0 purgeable bsd snooped (LLC) 19bb0000 12288 36 10 881af1 881af1 dirty purgeable bsd snooped (LLC) 19bb3000 65536 37 00 881af1 0 dirty purgeable bsd snooped (LLC) 19bc3000 524288 3f 00 881af1 0 purgeable bsd snooped (LLC) 172b9000 3145728 36 10 881b00 881b00 Y dirty bsd snooped (LLC) 19d43000 12288 36 10 881b00 881b00 dirty purgeable bsd snooped (LLC) 19d46000 57344 37 00 881b00 0 dirty purgeable bsd snooped (LLC) 19d54000 524288 3f 00 881b00 0 purgeable bsd snooped (LLC) 13f6f000 3145728 36 10 881b09 881b09 Y dirty bsd snooped (LLC) 14283000 3145728 36 00 881b09 881ac6 Y dirty bsd snooped (LLC) 19dd4000 12288 36 10 881b09 881b09 dirty purgeable bsd snooped (LLC) 19dd7000 57344 37 00 881b09 0 dirty purgeable bsd snooped (LLC) 19de5000 524288 3f 00 881b09 0 purgeable bsd snooped (LLC) 1a065000 12288 36 10 881b1d 881b1d dirty purgeable bsd snooped (LLC) 1a068000 65536 37 00 881b1d 0 dirty purgeable bsd snooped (LLC) 1a078000 524288 3f 00 881b1d 0 purgeable bsd snooped (LLC) 1393c000 3145728 36 10 881b33 881b33 Y dirty bsd snooped (LLC) 1a1f8000 12288 36 10 881b33 881b33 dirty purgeable bsd snooped (LLC) 1a1fb000 57344 37 00 881b33 0 dirty purgeable bsd snooped (LLC) 1a209000 524288 3f 00 881b33 0 purgeable bsd snooped (LLC) 14ba8000 3145728 36 10 881b43 881b43 Y dirty bsd snooped (LLC) 0c31c000 3145728 36 00 881b43 881af1 Y dirty bsd snooped (LLC) 1a389000 12288 36 10 881b43 881b43 dirty purgeable bsd snooped (LLC) 1a38c000 57344 37 00 881b43 0 dirty purgeable bsd snooped (LLC) 1a39a000 524288 3f 00 881b43 0 purgeable bsd snooped (LLC) 1a51a000 12288 36 10 881b51 881b51 dirty purgeable bsd snooped (LLC) 1929f000 81920 76 00 881b51 0 dirty purgeable bsd snooped (LLC) 1a51d000 524288 3f 00 881b51 0 purgeable bsd snooped (LLC) 151ae000 3145728 36 10 881b5c 881b5c Y dirty bsd snooped (LLC) 1a59d000 12288 36 10 881b5c 881b5c dirty purgeable bsd snooped (LLC) 1a5a0000 57344 37 00 881b5c 0 dirty purgeable bsd snooped (LLC) 1a5ae000 524288 3f 00 881b5c 0 purgeable bsd snooped (LLC) 154ae000 3145728 36 10 881b70 881b70 Y dirty bsd snooped (LLC) 13c54000 3145728 36 00 881b70 881b1d Y dirty bsd snooped (LLC) 1a82e000 12288 36 10 881b70 881b70 dirty purgeable bsd snooped (LLC) 1a831000 65536 37 00 881b70 0 dirty purgeable bsd snooped (LLC) 1a841000 524288 3f 00 881b70 0 purgeable bsd snooped (LLC) 1a9c1000 12288 36 10 881b7e 881b7e dirty purgeable bsd snooped (LLC) 1a9c4000 81920 37 00 881b7e 0 dirty purgeable bsd snooped (LLC) 1a9d8000 524288 3f 00 881b7e 0 purgeable bsd snooped (LLC) 175c2000 16777216 36 02 881b88 881b88 X dirty render snooped (LLC) (name: 3) 14eae000 3145728 36 00 881b88 881b88 Y dirty render snooped (LLC) 18b3b000 4096 37 00 881b88 0 dirty render snooped (LLC) 18645000 4096 37 00 881b88 0 dirty render snooped (LLC) 18b3a000 4096 37 00 881b88 0 dirty render snooped (LLC) 18642000 4096 37 00 881b88 0 dirty render snooped (LLC) 18644000 4096 37 00 881b88 0 dirty render snooped (LLC) 18643000 4096 37 00 881b88 0 dirty render snooped (LLC) 18648000 4096 37 00 881b88 0 render snooped (LLC) 18649000 4096 37 00 881b88 0 dirty render snooped (LLC) 18646000 4096 76 00 881b88 0 dirty render snooped (LLC) 1aad8000 524288 3f 00 881b88 0 purgeable render snooped (LLC) 00070000 8192 50 00 881b89 0 P dirty render snooped (LLC) 05a33000 12288 76 00 881b8a 0 dirty render snooped (LLC) 11733000 32768 3f 00 881b8a 0 dirty render snooped (LLC) 157b4000 3145728 36 10 881b8b 881b8b Y dirty bsd snooped (LLC) 14591000 3145728 36 00 881b8b 881b51 Y dirty bsd snooped (LLC) 148a1000 3145728 36 00 881b8b 881b7e Y dirty bsd snooped (LLC) 1ab58000 12288 36 10 881b8b 881b8b dirty bsd snooped (LLC) 1ab5b000 65536 37 00 881b8b 0 dirty bsd snooped (LLC) 1ab6b000 524288 3f 00 881b8b 0 purgeable bsd snooped (LLC) 0906d000 32768 3f 00 881b8c 0 dirty purgeable render snooped (LLC) 0330b000 4096 36 10 881b8d 881b8d dirty render snooped (LLC) 092a5000 4096 76 00 881b8d 0 dirty render snooped (LLC) 0b37e000 2097152 36 02 881b8d 881b8d Y dirty render snooped (LLC) 07a75000 8355840 36 00 881b8d 881b86 X dirty render snooped (LLC) (name: 5) 0af7e000 2097152 36 02 881b8d 881b8d Y dirty render snooped (LLC) 0b17e000 2097152 36 02 881b8d 881b8d Y dirty render snooped (LLC) 09b50000 655360 36 02 881b8d 881b8d dirty render snooped (LLC) 0b80e000 4096 76 00 881b8d 0 dirty render snooped (LLC) 0d07c000 8355840 76 00 881b8d 881b8d P X dirty render uncached (name: 14) (fence: 15) 0b980000 8355840 36 00 881b8d 0 X dirty render snooped (LLC) (name: 7) 03314000 8388608 36 02 881b8d 881b8d Y dirty render snooped (LLC) 03b14000 8388608 36 02 881b8d 881b8d Y dirty render snooped (LLC) 04315000 2097152 36 02 881b8d 881b8d dirty render snooped (LLC) 07a6f000 12288 76 00 881b8d 0 dirty render snooped (LLC) 06a66000 16777216 76 00 881b8d 0 Y dirty render snooped (LLC) 092c0000 4096 37 00 881b8d 0 render snooped (LLC) 022a2000 8388608 76 00 881b8d 0 Y dirty render snooped (LLC) 0b6bf000 655360 36 02 881b8d 881b8d Y dirty render snooped (LLC) 0b57f000 655360 36 02 881b8d 881b8d Y dirty render snooped (LLC) 0b61f000 655360 36 02 881b8d 881b8d Y dirty render snooped (LLC) 0b75f000 163840 36 02 881b8d 881b8d dirty render snooped (LLC) 0b80f000 4096 76 00 881b8d 0 dirty render snooped (LLC) 0b7d7000 163840 36 02 881b8d 881b8d Y dirty render snooped (LLC) 0b787000 163840 36 02 881b8d 881b8d Y dirty render snooped (LLC) 0b7af000 163840 36 02 881b8d 881b8d Y dirty render snooped (LLC) 0b7ff000 49152 36 02 881b8d 881b8d dirty render snooped (LLC) 0b810000 4096 76 00 881b8d 0 dirty render snooped (LLC) 0559e000 12288 76 00 881b8d 0 dirty render snooped (LLC) 04527000 4096 37 00 881b8d 0 dirty render snooped (LLC) 0553e000 24576 37 00 881b8d 0 X dirty render snooped (LLC) (name: 10) 07a68000 4096 37 00 881b8d 0 render snooped (LLC) 05595000 4096 37 00 881b8d 0 render snooped (LLC) 10890000 32768 3f 00 881b8d 0 dirty render snooped (LLC) 01870000 8192 10 00 881b8e 0 dirty render snooped (LLC) 0104f000 4096 7e 00 881b8f 0 p dirty render snooped (LLC) 01872000 36864 02 02 881b90 881b90 dirty render snooped (LLC) 05a18000 98304 02 02 881b90 881b90 X dirty render snooped (LLC) 0207a000 4096 37 00 881b90 0 dirty render snooped (LLC) 055d6000 4194304 36 00 881b90 0 Y dirty render snooped (LLC) 055be000 98304 02 02 881b90 881b90 X dirty render snooped (LLC) (name: 8) 0104e000 4096 7e 00 881b90 0 p dirty render snooped (LLC) Pinned [31]: 00000000 4096 01 01 0 0 P snooped (LLC) 00001000 131072 40 40 0 0 P dirty snooped (LLC) 00021000 4096 01 01 0 0 P snooped (LLC) 00022000 4096 01 01 0 0 P snooped (LLC) 00023000 131072 40 40 0 0 P dirty snooped (LLC) 00043000 4096 01 01 0 0 P snooped (LLC) 00044000 131072 40 40 0 0 P dirty snooped (LLC) 00070000 8192 50 00 881b89 0 P dirty render snooped (LLC) 00072000 8294400 40 00 0 0 P uncached 01044000 4096 7e 00 0 0 p dirty snooped (LLC) 01045000 4096 7e 00 0 0 p dirty snooped (LLC) 01046000 4096 7e 00 0 0 p dirty snooped (LLC) 01047000 4096 7e 00 0 0 p dirty snooped (LLC) 01048000 4096 7e 00 0 0 p dirty snooped (LLC) 01049000 4096 7e 00 0 0 p dirty snooped (LLC) 0104a000 4096 7e 00 0 0 p dirty snooped (LLC) 0104b000 4096 7e 00 0 0 p dirty snooped (LLC) 0104c000 4096 7e 00 0 0 p dirty snooped (LLC) 0104d000 4096 7e 00 0 0 p dirty snooped (LLC) 0104e000 4096 7e 00 881b90 0 p dirty render snooped (LLC) 0104f000 4096 7e 00 881b8f 0 p dirty render snooped (LLC) 01050000 4096 7e 00 0 0 p dirty snooped (LLC) 01051000 4096 7e 00 0 0 p dirty snooped (LLC) 01052000 4096 7e 00 0 0 p dirty snooped (LLC) 01053000 4096 7e 00 0 0 p dirty snooped (LLC) 01054000 16384 7e 00 0 0 p dirty snooped (LLC) 01058000 16384 3f 00 0 0 p dirty snooped (LLC) 0105c000 16384 3f 00 0 0 p dirty snooped (LLC) 01060000 16384 3f 00 0 0 p dirty snooped (LLC) 0f08a000 8355840 76 00 0 0 P X dirty uncached (name: 13) (fence: 3) 0d07c000 8355840 76 00 881b8d 881b8d P X dirty render uncached (name: 14) (fence: 15) render ring --- gtt_offset = 0x1aad8000 00000000 : 7a000002