On Di, 2016-01-12 at 14:56 +0000, Daniel P. Berrange wrote: > On Tue, Jan 12, 2016 at 03:36:40PM +0100, Kevin Wolf wrote: > > Am 12.01.2016 um 15:17 hat Gerd Hoffmann geschrieben: > > > On Sa, 2016-01-09 at 20:34 +0300, Andrey Korolyov wrote: > > > > Hello, > > > > > > > > during regular operations within linux guest with USB EHCI frontend I > > > > am seeing process crashes with an assert during regular operations > > > > like dpkg install: > > > > > > > > hw/usb/dev-storage.c:334: usb_msd_handle_reset: Assertion `s->req == > > > > ((void *)0)' failed.
> > <iotune> > > <total_bytes_sec>10000000</total_bytes_sec> > > <read_iops_sec>400000</read_iops_sec> > > <write_iops_sec>100000</write_iops_sec> > > </iotune> > Yes, that works with QEMU and will map through to the -drive I/O > tuning parameters. Works, successfully slowing down things to the point that a git clone of a linux kernel source tree from another machine in the same lan takes hours instead of minutes. That doesn't seem to be enough to trigger the asserts though :( Things are very slow but rock solid ... cheers, Gerd
