On Wed, Jan 13, 2016 at 7:13 PM, Gerd Hoffmann <kra...@redhat.com> wrote: > 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 >
Gerd, could you please check against NetBSD/FreeBSD guest? Both of them are complaining about interrupt storm upon last cleanups/syncs before reboot when using USB frontend as a disk and second assert is triggered very frequently. I`ll re-try with 2.5 in a couple of days for both cases.