[Bug 1161232] New: kernel stack trace on resume
http://bugzilla.opensuse.org/show_bug.cgi?id=1161232 Bug ID: 1161232 Summary: kernel stack trace on resume Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: SUSE Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: opensuse@mike.franken.de QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Starting with the 5.4.x kernel series on Tumbleweed my DELL XPS 13 9370 always crashes when resuming after the system has been hibernated, when an external Tunderbolt box (CalDigit TS3 Plus) with an external monitor is connected on hibernate, but is missing on resume. See attached dmesg.txt. The important messages seem to be: [ 5392.134376] [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* failed to enable link training [ 5394.363888] [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* failed to enable link training This worked perfectly for more than a year with earlier kernel versions. -- You are receiving this mail because: You are on the CC list for the bug.
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--- Comment #1 from Michael Hirmke
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--- Comment #2 from Michael Hirmke
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--- Comment #3 from Michael Hirmke
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--- Comment #7 from Michael Hirmke
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--- Comment #8 from Michael Hirmke
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--- Comment #9 from Michael Hirmke
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--- Comment #11 from Michael Hirmke
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--- Comment #12 from Oliver Neukum
Created attachment 828952 [details] dmesg from the before last crash
I'll attach every dmesg.txt from all of the upcoming crashes, until you say stop ;)
Again a PCI issue is first. The primary theory would be that if you unplug this the whole bus and bridge goes away in the hardware. A PCI hotplug code is faulty. Can you please test what happens if you replace your TB box with any other device in the type C port? A USB cable should be enough. -- You are receiving this mail because: You are on the CC list for the bug.
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--- Comment #13 from Michael Hirmke
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Michael Hirmke
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Michiel Janssens
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Michael Hirmke
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Michael Hirmke
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--- Comment #18 from Michael Hirmke
So does the issue still happen with 5.5.y kernel? There have been a couple of ptp-clock-related fixes in 5.5, and I hoped that those addressed the issue.
If it's with 5.5 or later, please try to get a crash stack trace again. Thanks.
No stack trace at all with later kernels, but every so often the machine only shows a black screen after resuming. With 5.5.6 the situation was acceptable, with 5.5.7-1.1 it was really bad - I even got errors like igb 0000:3f:00.0: can't change power state from D3cold to D0 (config space inaccessible) xhci_hcd 0000:3e:00.0: No Extended Capability registers, unable to set up roothub Now i'm testing with 5.5.7-1.2. -- You are receiving this mail because: You are on the CC list for the bug.
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--- Comment #19 from Michiel Janssens
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Michael Hirmke
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Michael Hirmke
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