device: 0.190
other: 0.146
semantic: 0.132
performance: 0.074
graphic: 0.073
vnc: 0.060
files: 0.055
PID: 0.055
debug: 0.053
socket: 0.049
network: 0.032
permissions: 0.030
boot: 0.029
KVM: 0.023
debug: 0.742
device: 0.043
other: 0.043
PID: 0.031
files: 0.030
socket: 0.024
performance: 0.024
network: 0.015
semantic: 0.010
vnc: 0.010
graphic: 0.009
boot: 0.009
permissions: 0.007
KVM: 0.004

QEMU Crashes when attaching USB 3.00 devices to xhci bus

Using qemu 2.6 with a windows7 32-bit VM, if I plug a USB 3.0 memory stick in to a USB 3.0 port, then pass it through to the VM via the monitor (device_add usb-host,bus=xhci.0,hostbus=xx,hostaddr=xx,id=stick1) then qemu asserts and dies - I have seen 2 different asserts one is from the xchi module - Assertion `intr->er_full, and one is in core.c (line 400 I IIRCC) with "Assertion dev->state == 3 failed"
Tried to work around by only passing in an ehci controller to the VM, but then if I attach a usb 3.0 memory stick to that it doesn't work in windows.
I have made sure the xhci drivers in the windows VM are up to date, latest version of SeaBios etc, but at the moment, I have had to disable xhci in my system bios and just use ehci for everything.

I also had this problem. You can try to configure the VM with core=1 and thread=1. See if the "intr->er_full" assertion still exist.

Triaging old bug tickets... can you still reproduce this issue with the latest version of QEMU? Or could we close this ticket nowadays?

[Expired for QEMU because there has been no activity for 60 days.]