https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193500
--- Comment #16 from Jan Kokemüller <jan.kokemuel...@gmail.com> --- Created attachment 147363 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=147363&action=edit ktrdump while loading i915kms (debug.ktr.mask=4) (In reply to Konstantin Belousov from comment #15) > So can you describe what the problem is and why your patch help ? My best guess is that it's some kind of initialization problem regarding the interrupts, because the behavior stops after a suspend/resume cycle. The problem started with (or was uncovered by) the opregion code changes. If I stub out intel_enable_asle the problem goes away. The patch makes it so that intel_enable_asle gets first called only after I disable/enable the interrupts of the card. Then there is no interrupt storm anymore. I'll try to debug this further. > To see what kind of interrupt causes the storm, compile kernel with KTR_DRM > and enable ktr(4) tracing for it. I compiled the kernel with KTR, and enabled KTR_DRM by setting "sysctl debug.ktr.mask=4". Then I loaded an unpatched i915kms module. I've attached the log (interesting events are from 34 to 48). It seems only the interrupts on irq260 are accounted for. Any way I can trace the interrupts on irq16? -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
