<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][BAT] igt* incomplete - /dev/kmsg buffer overrun, some messages lost" href="https://bugs.freedesktop.org/show_bug.cgi?id=103706#c12">Comment # 12</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CI][BAT] igt* incomplete - /dev/kmsg buffer overrun, some messages lost" href="https://bugs.freedesktop.org/show_bug.cgi?id=103706">bug 103706</a> from <a class="email" href="mailto:marta.lofstedt@intel.com" title="Marta Löfstedt <marta.lofstedt@intel.com>"> Marta Löfstedt</a> <pre><a href="https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_7090/fi-bxt-dsi/igt@vgem_basic@dmabuf-export.html">https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_7090/fi-bxt-dsi/igt@vgem_basic@dmabuf-export.html</a> from dmesg, there is no pstore available. ftrace "spamming" starts here: <7>[ 457.728243] [IGT] vgem_basic: executing <0>[ 471.342503] kms_psr_-4050 1..s1 444620858us : intel_lrc_irq_handler: bcs0 out[0]: ctx=3.1, seqno=28d1b then we get into a chain of BUG_ON backtraces: <3>[ 472.794818] BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:34 <1>[ 472.806539] BUG: unable to handle kernel paging request at fffffffefaacf48a <3>[ 472.811672] BUG: scheduling while atomic: kworker/1:15/3965/0x00000003 <4>[ 472.812493] WARNING: CPU: 1 PID: 3965 at kernel/rcu/tree_plugin.h:329 rcu_note_context_switch+0x70/0x6c0 <3>[ 537.840247] INFO: rcu_preempt detected stalls on CPUs/tasks: <3>[ 537.840299] Tasks blocked on level-0 rcu_node (CPUs 0-3): P3965 <3>[ 537.840342] (detected by 0, t=65002 jiffies, g=28545, c=28544, q=29901)</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 assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>