<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Intel card (Coffeelake) short freezes (hang) after upgrade to kernel 5.3.4" href="https://bugs.freedesktop.org/show_bug.cgi?id=111919#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Intel card (Coffeelake) short freezes (hang) after upgrade to kernel 5.3.4" href="https://bugs.freedesktop.org/show_bug.cgi?id=111919">bug 111919</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>rcs0 command stream: IDLE?: no START: 0x00009000 HEAD: 0x00400820 [0x00000000] TAIL: 0x00000820 [0x00000000, 0x00000000] CTL: 0x00003001 MODE: 0x00000000 HWS: 0xffffe000 ACTHD: 0x00000000 00400820 IPEIR: 0x00000000 IPEHR: 0x7a000004 INSTDONE: 0xffdfffff SC_INSTDONE: 0xffffffff SAMPLER_INSTDONE[0][0]: 0xffffffff SAMPLER_INSTDONE[0][1]: 0xffffffff SAMPLER_INSTDONE[0][2]: 0xffffffff ROW_INSTDONE[0][0]: 0xffffffff ROW_INSTDONE[0][1]: 0xffffffff ROW_INSTDONE[0][2]: 0xffffffff BBADDR: 0x0000fffe_ec2fca94 BB_STATE: 0x00000020 INSTPS: 0x00008840 INSTPM: 0x00000000 FADDR: 0x00000000 00009820 RC PSMI: 0x00000010 FAULT_REG: 0x00000000 GFX_MODE: 0x00008000 PDP0: 0x0000000b7e32f000 PDP1: 0x0000000000000000 PDP2: 0x0000000000000000 PDP3: 0x0000000000000000 ring->head: 0x00000000 ring->tail: 0x00000000 hangcheck timestamp: 0ms (4395844992; epoch) engine reset count: 0 ELSP[0]: pid 801, seqno 15:0011639e!, prio 2, emitted -960ms, start 00009000, head 00000780, tail 00000820 ELSP[1]: pid 0, seqno 5:0000178c, prio -4093, emitted -959ms, start 00001000, head 000008c0, tail 00000928 Active context: [0] hw_id 0, prio 0, guilty 0 active 0 The GPU did not do a context switch at the end of ELSP[0]. Seems like you are able to reproduce this fairly easily with your usage, could you try setting i915.dmc_firmware_path=/dev/null on your kernel/grub commandline?</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> <li>You are the assignee for the bug.</li> </ul> </body> </html>