Guest WinXP crashes when trying to use a USB spectrometer

[Ruslan]

I'm using Amadeus spectrometer (OceanOptics USB250) via Windows-based software "Quantum". I've tried six ways of attaching it to QEMU:

1. command line parameter "-device usb-host,hostbus=3,hostaddr=25"
2. command line parameter "-device usb-host,vendorid=0x2457,productid=0x1030"
3. command line parameter "-usbdevice host:2457:1030
4. command line parameter "-usbdevice host:3.25"
5. qemu console command "usb_add host:2457:1030"
5. qemu console command "usb_add host:3.25"

From these, only "-device ..." options work, i.e. numbers 1 and 2 in the list above, and all others lead to IRQL_NOT_LESS_OR_EQUAL BSOD in usbuhci.sys when I launch Quantum, which tries to start acquiring spectra.

I've also tried to reproduce the crash with a flash drive, but couldn't — it seems to work reliably in this case.

[Erik Rull (erik-rull)]

Which version is used? Try the latest QEMU or at least QEMU 2.0.
The behavior sounds like a pretty old QEMU version.
Additionally, enable the EHCI controller (see example in the docs subdirectory).
It it working on a native Windows XP?

[Ruslan (b7-10110111)]

I was using QEMU from git, v2.3.0-rc2, when reporting this bug. And this is the same since much earlier (about a year older) version. And of course I do enable EHCI controller via `-device usb-ehci`. And checked it with native Windows XP, where the device works with no problem. Actually, as I said in OP, `-device hsb-host,...` options work in QEMU too, but the others like `-usbdevice host...` and `usb_add host...` don't.

[Erik Rull (erik-rull)]

Please check that the devices get added to the EHCI bus and not to the UHCI.
As far as I know the -usb* commands are deprecated. The functions behind the -device usb* and -usb* should behave the same.

[Ruslan (b7-10110111)]

Indeed, the device appears added to the UHCI in both crashing cases and to EHCI in the working case. Also, sometimes instead of BSOD of guest OS I get abort of QEMU:

qemu-system-i386: hw/usb/core.c:735: usb_ep_get: Assertion `pid == 0x69 || pid == 0xe1' failed.
/usr/bin/qemuxp: line 4: 13514 Aborted (core dumped) qemu-system-i386 /home/ruslan/iso/Windoze/qemuxp.img -m 512 -display sdl -vga vmware -enable-kvm -usb -device usb-ehci $*

here $* stands for

-snapshot -hdb ~/iso/ntfs-data.img

and the crash was triggered by using usb_add command in QEMU terminal and then attempting to access the device from WinXP.

[Thomas Huth (th-huth)]

"-usbdevice host" and "usb_add host" have been removed with QEMU 2.12, so marking this bug as Wont-Fix.