<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [all]igt/drv_suspend/forcewake causes WARNING: CPU: 5 PID: 4366 at drivers/gpu/drm/i915/intel_uncore.c:463 assert_forcewakes_inactive+0x57/0x6d [i915]()" href="https://bugs.freedesktop.org/show_bug.cgi?id=89626#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [all]igt/drv_suspend/forcewake causes WARNING: CPU: 5 PID: 4366 at drivers/gpu/drm/i915/intel_uncore.c:463 assert_forcewakes_inactive+0x57/0x6d [i915]()" href="https://bugs.freedesktop.org/show_bug.cgi?id=89626">bug 89626</a> from <a class="email" href="mailto:yex.tian@intel.com" title="ye.tian <yex.tian@intel.com>"> ye.tian</a> <pre>Test it on SNB with the latest nightly kernel and latest igt, it still exists. output: -------------- root@x-sgb3:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./drv_suspend --run-subtest forcewake IGT-Version: 1.10-ge1ce5ea (x86_64) (Linux: 4.0.0_drm-intel-nightly_92bb36_20150424+ x86_64) rtcwake: assuming RTC uses UTC ... rtcwake: wakeup from "mem" using /dev/rtc0 at Fri Apr 24 02:46:52 2015 Subtest forcewake: SUCCESS (0.382s) dmesg info ------------------ [ 176.558418] ------------[ cut here ]------------ [ 176.558438] WARNING: CPU: 1 PID: 4707 at drivers/gpu/drm/i915/intel_uncore.c:517 assert_forcewakes_inactive+0x5a/0x70 [i915]() [ 176.558439] WARN_ON(domain->wake_count) [ 176.558450] Modules linked in: ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support ppdev snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 firewire_ohci lpc_ich mfd_core firewire_core crc_itu_t snd_hda_intel snd_hda_controller joydev snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore parport_pc parport tpm_tis tpm acpi_cpufreq i915 button video drm_kms_helper drm [ 176.558453] CPU: 1 PID: 4707 Comm: kworker/u8:21 Not tainted 4.0.0_drm-intel-nightly_92bb36_20150424+ #38 [ 176.558454] Hardware name: /DQ67SW, BIOS SWQ6710H.86A.0060.2011.1220.1805 12/20/2011 [ 176.558458] Workqueue: events_unbound async_run_entry_fn [ 176.558460] 0000000000000000 0000000000000009 ffffffff81795847 ffff880234683c18 [ 176.558461] ffffffff8103bd5a 0000000000000000 ffffffffa00c07cc 0000000000000000 [ 176.558462] ffff880002990000 0000000000000000 ffff880002990140 0000000000000001 [ 176.558463] Call Trace: [ 176.558468] [<ffffffff81795847>] ? dump_stack+0x40/0x50 [ 176.558471] [<ffffffff8103bd5a>] ? warn_slowpath_common+0x98/0xb0 [ 176.558481] [<ffffffffa00c07cc>] ? assert_forcewakes_inactive+0x5a/0x70 [i915] [ 176.558483] [<ffffffff8103bdb7>] ? warn_slowpath_fmt+0x45/0x4a [ 176.558493] [<ffffffffa00c07cc>] ? assert_forcewakes_inactive+0x5a/0x70 [i915] [ 176.558503] [<ffffffffa00c0a40>] ? intel_uncore_forcewake_reset+0x25e/0x260 [i915] [ 176.558511] [<ffffffffa007b89c>] ? i915_drm_suspend+0x16c/0x1a1 [i915] [ 176.558514] [<ffffffff8135fa1e>] ? pci_pm_suspend+0x79/0xf6 [ 176.558516] [<ffffffff8135f9a5>] ? pci_pm_freeze+0xa4/0xa4 [ 176.558518] [<ffffffff813f21a9>] ? dpm_run_callback+0x3a/0xc5 [ 176.558520] [<ffffffff813f2b17>] ? __device_suspend+0x1d1/0x25d [ 176.558521] [<ffffffff813f2bb9>] ? async_suspend+0x16/0x7d [ 176.558523] [<ffffffff81052783>] ? async_run_entry_fn+0x2d/0xbf [ 176.558526] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d [ 176.558528] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 [ 176.558530] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa [ 176.558532] [<ffffffff81050b25>] ? kthread+0xce/0xd6 [ 176.558533] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 [ 176.558535] [<ffffffff8179b048>] ? ret_from_fork+0x58/0x90 [ 176.558536] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 [ 176.558537] ---[ end trace 1b63e650bbd677f1 ]---</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>