[SOLVED] Kernel OOPS with Proxmox 5.2 / Kernel 4.15 and USB Controller Passthrough

Discussion in 'Proxmox VE: Installation and configuration' started by seiichiro0185, May 18, 2018.

  1. seiichiro0185

    seiichiro0185 New Member

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    Hi there, I'm a long time happy Proxmox VE user, first of all Thanks for this great Product and the impressive feature set you have delivered for many years now!

    I recently updated to Proxmox 5.2 with Kernel 4.15, and unfortunately hit a Kernel Bug. I have 2 Identical USB3-PCIe Cards in my Server which I pass through to 2 different VMs. This worked fine till now. In Proxmox 5.2 with the newer kernel 4.15 I can only start one of the VMs, the second one doesn't start, and dmesg shows the Kernel Bug described here: www<dot>spinics<dot>net/lists/stable/msg235182.html on unbinding the device. Afterwards the USB-Controller is no longer usable.

    As you can see there is already a Patch for this issue attached to the Message, would it be possible to incorporate this patch into the proxmox kernel, or alternatively disable CONFIG_USB_XHCI_DBGCAP in the Kernel config to prevent this Issue (as described in this bug report: bugzilla<dot>redhat<dot>com/show_bug.cgi?id=1565131 )? Booting with the old 4.13 Kernel works as a workaround for me, so I can circumvent the Issue for now.

    If you need any further Infos / Logs / Whatever, I'll gladly provide them. And sorry for the strange links, but as a new user I'm apparently not allowed to post any links here.

    Thanks in Advance
    seiichiro0185
     
  2. dcsapak

    dcsapak Proxmox Staff Member
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    the upstream patch will be part of our next kernel upgrade
     
  3. seiichiro0185

    seiichiro0185 New Member

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    Thank you for the fast (and positive) response :)
     
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