30 Jun
2022
30 Jun
'22
11:27 a.m.
Hi Lorenz,
general comment: Using a VM with USB pass-through is never a good idea for
any latency-sensitive use cases. If you must use a VM, I suggest to use srv-io
to map the entire PCIe USB host controller into the VM. Better use a dedicated
machine (could be a small embedded system) that natively runs Linux.
On Mon, Jun 27, 2022 at 02:33:10PM +0200, Lorenz Dumanski wrote:
Note that the OS is hosted as a VM with KVM/QEMU. When
using only the
simtrace, without remism, the SIM Card which is inserted into the board
works as intended and the phone connects with my EPS.
Just to clarify: if you use the simtrace2 board with 'cardem' firmware to
emulate a card, you should not have a physical card inserted into it!
You're only supposed to have a physical card inserted into simtrace2 internal
slot if you use the sniffer/tracer firmware for passive tracing.
In general it would be good to get the serial console output of the simtrace2
device when you see those USB errors.
Regards,
Harald
--
- Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/
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