<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - System hangs randomly with error message: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle" href="https://bugs.freedesktop.org/show_bug.cgi?id=75394#c35">Comment # 35</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - System hangs randomly with error message: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle" href="https://bugs.freedesktop.org/show_bug.cgi?id=75394">bug 75394</a> from <a class="email" href="mailto:chr.egger@gmail.com" title="Christian Egger <chr.egger@gmail.com>"> Christian Egger</a> <pre>I tried bisecting but gave up after different kind of erros showed up in earlier kernel versions. I'm currently running 3.19.0-rc7+ (dc6d6844111d953d3fa2121da28d38be9359c911 on master). $ cat /proc/sys/kernel/tainted 576 512 is due to the warnings but I have no idea where the 64 comes from (I didn't set it). It hasn't crashed yet in it's 20h uptime but I get a lot of these WARNINGS: [ 34.112693] ------------[ cut here ]------------ [ 34.112703] WARNING: CPU: 0 PID: 106 at drivers/gpu/drm/drm_irq.c:1121 drm_wait_one_vblank+0x170/0x180 [drm]() [ 34.112704] vblank not available on crtc 0, ret=-22 [ 34.112728] Modules linked in: btusb bluetooth rfkill snd_hda_intel snd_hda_controller snd_hda_codec i915 video drm_kms_helper drm lpc_ich snd_hwdep snd_pcm mfd_core snd_timer snd soundcore tpm_tis shpchp tpm button mei_me wmi floppy(+) mei i2c_algo_bit i2c_core acpi_cpufreq processor thermal_sys loop fuse parport_pc ppdev lp parport autofs4 ext4 crc16 mbcache jbd2 sha256_generic ecb cbc algif_skcipher af_alg dm_crypt dm_mod md_mod hid_generic usbhid hid sg sr_mod cdrom sd_mod ahci libahci ata_generic e1000e ptp ehci_pci pps_core libata uhci_hcd ehci_hcd scsi_mod usbcore usb_common [ 34.112730] CPU: 0 PID: 106 Comm: kworker/u16:7 Tainted: G U W 3.19.0-rc7+ #6 [ 34.112730] Hardware name: Dell Inc. OptiPlex 760 /0M858N, BIOS A16 08/06/2013 [ 34.112735] Workqueue: events_unbound async_run_entry_fn [ 34.112737] 0000000000000000 ffffffffa03bd6ff ffffffff815420a5 ffff88003723f818 [ 34.112738] ffffffff8106c031 ffff8800373cc800 ffff8800b8770000 0000000000000000 [ 34.112739] ffff8800b8770360 ffff8800b941f000 ffffffff8106c0aa ffffffffa03bfec0 [ 34.112740] Call Trace: [ 34.112744] [<ffffffff815420a5>] ? dump_stack+0x40/0x50 [ 34.112746] [<ffffffff8106c031>] ? warn_slowpath_common+0x81/0xb0 [ 34.112748] [<ffffffff8106c0aa>] ? warn_slowpath_fmt+0x4a/0x50 [ 34.112751] [<ffffffffa0392e8a>] ? drm_vblank_get+0x6a/0xc0 [drm] [ 34.112755] [<ffffffffa0393940>] ? drm_wait_one_vblank+0x170/0x180 [drm] [ 34.112792] [<ffffffffa049e6ee>] ? intel_sdvo_write_sdvox.isra.1+0x9e/0x120 [i915] [ 34.112812] [<ffffffffa049ff4a>] ? intel_enable_sdvo+0x6a/0x120 [i915] [ 34.112829] [<ffffffffa046df11>] ? i9xx_crtc_enable+0x3f1/0x4b0 [i915] [ 34.112848] [<ffffffffa046c4d7>] ? __intel_set_mode+0x867/0xc60 [i915] [ 34.112866] [<ffffffffa0473204>] ? intel_crtc_set_config+0xc04/0xf80 [i915] [ 34.112870] [<ffffffffa039c0e7>] ? drm_mode_set_config_internal+0x67/0x100 [drm] [ 34.112873] [<ffffffffa03f9721>] ? restore_fbdev_mode+0xc1/0xe0 [drm_kms_helper] [ 34.112876] [<ffffffffa03fb640>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x20/0x60 [drm_kms_helper] [ 34.112878] [<ffffffffa03fb6a2>] ? drm_fb_helper_set_par+0x22/0x50 [drm_kms_helper] [ 34.112895] [<ffffffffa0480196>] ? intel_fbdev_set_par+0x16/0x60 [i915] [ 34.112898] [<ffffffff8132a100>] ? fbcon_init+0x580/0x610 [ 34.112900] [<ffffffff8139cdd1>] ? visual_init+0xb1/0x110 [ 34.112901] [<ffffffff8139f2e4>] ? do_bind_con_driver+0x174/0x3c0 [ 34.112903] [<ffffffff8139fac3>] ? do_take_over_console+0xb3/0x1c0 [ 34.112904] [<ffffffff81325173>] ? do_fbcon_takeover+0x63/0xd0 [ 34.112906] [<ffffffff81089fcd>] ? notifier_call_chain+0x4d/0x70 [ 34.112907] [<ffffffff8108a301>] ? __blocking_notifier_call_chain+0x41/0x60 [ 34.112909] [<ffffffff8133236e>] ? register_framebuffer+0x1fe/0x330 [ 34.112911] [<ffffffffa03fb92a>] ? drm_fb_helper_initial_config+0x25a/0x3c0 [drm_kms_helper] [ 34.112913] [<ffffffff8108f389>] ? finish_task_switch+0x59/0x160 [ 34.112915] [<ffffffff8108ba43>] ? async_run_entry_fn+0x43/0x160 [ 34.112917] [<ffffffff81083a0d>] ? process_one_work+0x14d/0x3f0 [ 34.112918] [<ffffffff8108438b>] ? worker_thread+0x6b/0x4a0 [ 34.112920] [<ffffffff81084320>] ? rescuer_thread+0x310/0x310 [ 34.112921] [<ffffffff81089123>] ? kthread+0xd3/0xf0 [ 34.112922] [<ffffffff81089050>] ? kthread_create_on_node+0x180/0x180 [ 34.112924] [<ffffffff81547b7c>] ? ret_from_fork+0x7c/0xb0 [ 34.112925] [<ffffffff81089050>] ? kthread_create_on_node+0x180/0x180 [ 34.112926] ---[ end trace b37264d08a3caf8c ]--- [ 34.112927] ------------[ cut here ]------------</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>