<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][SHARDS] igt@debugfs_test@read_all_entries_display_on - incomplete - Reading file "i915_dsc_fec_support"" href="https://bugs.freedesktop.org/show_bug.cgi?id=109097#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][SHARDS] igt@debugfs_test@read_all_entries_display_on - incomplete - Reading file "i915_dsc_fec_support"" href="https://bugs.freedesktop.org/show_bug.cgi?id=109097">bug 109097</a> from <a class="email" href="mailto:james.ausmus@intel.com" title="James Ausmus <james.ausmus@intel.com>"> James Ausmus</a> <pre>Wonder if it's a locking issue? Maybe also related: <a href="http://gfx-ci.fi.intel.com/tree/drm-tip/CI_DRM_5332/shard-iclb4/igt@i915_suspend@debugfs-reader.html">http://gfx-ci.fi.intel.com/tree/drm-tip/CI_DRM_5332/shard-iclb4/igt@i915_suspend@debugfs-reader.html</a> <6> [374.267844] Freezing user space processes ... <7> [376.166282] [drm:edp_panel_vdd_off_sync [i915]] Turning eDP port A VDD off <7> [376.166429] [drm:edp_panel_vdd_off_sync [i915]] PP_STATUS: 0x80000008 PP_CONTROL: 0x00000067 <7> [376.166455] [drm:intel_power_well_disable [i915]] disabling DC off <7> [376.166483] [drm:skl_enable_dc6 [i915]] Enabling DC6 <7> [376.166507] [drm:gen9_set_dc_state [i915]] Setting DC state from 00 to 02 <3> [394.273585] Freezing of tasks failed after 20.005 seconds (1 tasks refusing to freeze, wq_busy=0): <6> [394.273668] cat R running task 13688 1183 1182 0x00000004 <4> [394.273684] Call Trace: <4> [394.273691] ? trace_hardirqs_on_thunk+0x1a/0x1c <4> [394.273695] ? lockdep_hardirqs_on+0xe0/0x1b0 <4> [394.273698] ? trace_hardirqs_on_thunk+0x1a/0x1c <4> [394.273705] ? retint_kernel+0x2d/0x2d <4> [394.273712] ? __lock_is_held+0x6b/0xb0 <4> [394.273720] ? ___might_sleep+0x18c/0x250 <4> [394.273726] ? __ww_mutex_lock.constprop.6+0x56/0xfd0 <4> [394.273729] ? trace_hardirqs_on_thunk+0x1a/0x1c <4> [394.273733] ? __lock_is_held+0x6b/0xb0 <4> [394.273743] ? ww_mutex_lock_interruptible+0x39/0xa0 <4> [394.273747] ? ww_mutex_lock_interruptible+0x39/0xa0 <4> [394.273751] ? drm_modeset_lock+0x3b/0x110 <4> [394.273784] ? i915_dsc_fec_support_show+0x97/0x1e0 [i915] <4> [394.273796] ? seq_read+0xdb/0x3c0 <4> [394.273803] ? full_proxy_read+0x52/0x90 <4> [394.273809] ? __vfs_read+0x31/0x170 <4> [394.273815] ? __se_sys_newfstat+0x3c/0x60 <4> [394.273820] ? vfs_read+0x9e/0x140 <4> [394.273825] ? ksys_read+0x50/0xc0 <4> [394.273830] ? do_syscall_64+0x55/0x190 <4> [394.273834] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe <6> [394.273845] OOM killer enabled. <6> [394.273847] Restarting tasks ... done. <6> [394.287078] PM: suspend exit <6> [394.298682] [IGT] i915_suspend: exiting, ret=99</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>