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New: Kernel Panic when i restart host

Bug 203321 [email protected] 1 participant 3 messages Apr 15, 2019 – Apr 18, 2019 KVM

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https://bugzilla.kernel.org/show_bug.cgi?id=203321

            Bug ID: 203321
           Summary: Kernel Panic when i restart host
           Product: Virtualization
           Version: unspecified
    Kernel Version: 4.19.x - 5.0.7
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
          Assignee: [email protected]
          Reporter: [email protected]
        Regression: No

Hello,

I have a problem with my Linux. When i use Qemu/KVM with libvirt, the GPU used by the Guest is automatically bind to VFIO when i launch the VM and unbind when the VM is closed.

The issue is that I have a kernel panic each time i reboot/halt the host after to use the VM. The only solution that i found is to set "amdgpu.dc=0" in the GRUB command line. But with this solution, FreeSync and HDMI sound is disabled.

I would like to know if there is an other solution to avoid this kernel panic and this workaround ?

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[Bug 203321] Kernel Panic when i restart host

https://bugzilla.kernel.org/show_bug.cgi?id=203321

Alex Williamson ([email protected]) changed:

What |Removed |Added
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CC| |[email protected]

--- Comment #1 from Alex Williamson ([email protected]) --- Please provide the kernel panic.

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[Bug 203321] Kernel Panic when i restart host

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=203321

--- Comment #2 from Berillions ([email protected]) --- Created attachment 282395
--> https://bugzilla.kernel.org/attachment.cgi?id=282395&action=edit
Kernel Panix

Hello Alex,

Sorry for the delay. I attach a photo take with my smartphone. I don't know where i can find a log from a kernel panic after reboot.

Maxime

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