<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [HSW] wakeup after STR causes drivers/gpu/drm/i915/intel_uncore.c:528 hsw_unclaimed_reg_debug.isra.11+0x78/0x90()" href="https://bugs.freedesktop.org/show_bug.cgi?id=89878#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [HSW] wakeup after STR causes drivers/gpu/drm/i915/intel_uncore.c:528 hsw_unclaimed_reg_debug.isra.11+0x78/0x90()" href="https://bugs.freedesktop.org/show_bug.cgi?id=89878">bug 89878</a> from <a class="email" href="mailto:kaergel@b1-systems.de" title="Thomas Kaergel <kaergel@b1-systems.de>"> Thomas Kaergel</a> <pre>Just tried kernel gentoo-3.17.8-r1 and the trace is still in dmesg output after STR wakeup, but X11 screen is no longer broken after STR :) dmesg output is: [ 47.036455] ------------[ cut here ]------------ [ 47.036459] WARNING: CPU: 2 PID: 3403 at drivers/gpu/drm/i915/intel_uncore.c:528 hsw_unclaimed_reg_debug.isra.11+0x70/0x90() [ 47.036460] Unclaimed register detected before reading register 0x130040 [ 47.036465] Modules linked in: ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat vboxnetadp(O) vboxnetflt(O) vboxdrv(O) x86_pkg_temp_thermal [ 47.036467] CPU: 2 PID: 3403 Comm: kworker/u16:76 Tainted: G O 3.17.8-gentoo-r1 #1 [ 47.036468] Hardware name: LENOVO 20BX000TGE/20BX000TGE, BIOS JBET39WW (1.04 ) 12/09/2014 [ 47.036470] Workqueue: events_unbound async_run_entry_fn [ 47.036472] 0000000000000009 ffff880323607be0 ffffffff819cce50 ffff880323607c28 [ 47.036474] ffff880323607c18 ffffffff8108d7e8 ffff88034bdf0060 0000000000130040 [ 47.036475] ffffffff81ca50ef 0000000000130040 ffff88034bdf0060 ffff880323607c78 [ 47.036476] Call Trace: [ 47.036478] [<ffffffff819cce50>] dump_stack+0x45/0x56 [ 47.036480] [<ffffffff8108d7e8>] warn_slowpath_common+0x78/0xa0 [ 47.036482] [<ffffffff8108d857>] warn_slowpath_fmt+0x47/0x50 [ 47.036485] [<ffffffff817a0a8e>] ? raw_pci_read+0x1e/0x40 [ 47.036487] [<ffffffff8153ee10>] hsw_unclaimed_reg_debug.isra.11+0x70/0x90 [ 47.036488] [<ffffffff81541729>] gen6_read32+0x59/0x130 [ 47.036490] [<ffffffff815556a7>] hsw_disable_pc8+0x37/0x360 [ 47.036493] [<ffffffff814fe230>] ? i915_resume_early+0x50/0x50 [ 47.036494] [<ffffffff814fe0b8>] i915_drm_thaw_early+0x58/0x60 [ 47.036496] [<ffffffff814fe21e>] i915_resume_early+0x3e/0x50 [ 47.036497] [<ffffffff814fe240>] i915_pm_resume_early+0x10/0x20 [ 47.036499] [<ffffffff815a01c0>] dpm_run_callback+0x40/0x100 [ 47.036501] [<ffffffff815a0513>] device_resume_early+0xb3/0x1a0 [ 47.036502] [<ffffffff815a0618>] async_resume_early+0x18/0x40 [ 47.036504] [<ffffffff810aa552>] async_run_entry_fn+0x32/0x130 [ 47.036505] [<ffffffff810a33e8>] process_one_work+0x148/0x3d0 [ 47.036507] [<ffffffff810a3789>] worker_thread+0x119/0x480 [ 47.036509] [<ffffffff810a3670>] ? process_one_work+0x3d0/0x3d0 [ 47.036510] [<ffffffff810a7fa4>] kthread+0xc4/0xe0 [ 47.036512] [<ffffffff810a7ee0>] ? kthread_create_on_node+0x170/0x170 [ 47.036514] [<ffffffff819d646c>] ret_from_fork+0x7c/0xb0 [ 47.036516] [<ffffffff810a7ee0>] ? kthread_create_on_node+0x170/0x170 [ 47.036517] ---[ end trace 68f66717252baa96 ]--- i will now test kernel 3.14.36-gentoo.</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>