On Thu, Sep 30, 2021 at 03:48:44PM +0200, Remy Noel wrote: > Hello, > > I'm encountering a nagging issue with usbredir and a windows guest, but > although I did pinpoint the commit that caused the issue, I have a hard time > understanding it. > > The issue occurs when a two usbredir devices are added to a guest windows vm. > When the second device is added, the UHCI usb controller is disabled by > windows with an error code 43 (can be seen with in the usb adapters section > of the device manager). > > The commit causing the issue (everything works well when reverting it) is > 7bed89958bfbf40df9ca681cefbdca63abdde39d : device_core: use drain_call_rcu in > in qmp_device_add.
Co-incidentally we've just had another bug report filed today that suggests 7bed89958bfbf40df9ca681cefbdca63abdde39d as a buggy commit causing deadlock in QEMU https://gitlab.com/qemu-project/qemu/-/issues/650 Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
