FS#56140 - [linux] USB Devices Disappear When Adding USB Device To QEMU VM

Attached to Project: Arch Linux
Opened by Mark Weiman (markzz) - Friday, 27 October 2017, 16:08 GMT
Last edited by Doug Newgard (Scimmia) - Monday, 30 October 2017, 13:17 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Jan Alexander Steffens (heftig)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
When adding a usb device to a QEMU/KVM virtual machine, it causes the usb devices to disappear and not be available until the next boot. I have found that this is an issue with the kernel because downgrading to 4.13.5 makes it function again.

Additional info:
* linux 4.13.7+
* dmesg output attached


Steps to reproduce:
Upgrade linux and run VM then add usb device via QEMU monitor.
   usberror (5 KiB)
This task depends upon

Closed by  Doug Newgard (Scimmia)
Monday, 30 October 2017, 13:17 GMT
Reason for closing:  Fixed
Additional comments about closing:  linux 4.13.10-1
Comment by Mark Weiman (markzz) - Friday, 27 October 2017, 16:29 GMT
I want to add, this dmesg output is from a patched kernel, but this occurs under the regular ARCH kernel as well.
Comment by loqs (loqs) - Friday, 27 October 2017, 16:54 GMT
https://bbs.archlinux.org/viewtopic.php?id=231078
Can you confirm if the issue was fixed by this revert in 4.13.10?
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=a9fdf6354267d92b57bfb96fbcccbe5d5c163d8e
Comment by Mark Weiman (markzz) - Friday, 27 October 2017, 23:54 GMT
That patch solved the problem.

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