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Re: [Qemu-devel] usb-storage assertions
From: |
Andrey Korolyov |
Subject: |
Re: [Qemu-devel] usb-storage assertions |
Date: |
Wed, 13 Jan 2016 19:28:28 +0300 |
On Wed, Jan 13, 2016 at 7:13 PM, Gerd Hoffmann <address@hidden> 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.
- [Qemu-devel] usb-storage assertions, Andrey Korolyov, 2016/01/09
- Re: [Qemu-devel] usb-storage assertions, Gerd Hoffmann, 2016/01/12
- Re: [Qemu-devel] usb-storage assertions, Kevin Wolf, 2016/01/12
- Re: [Qemu-devel] usb-storage assertions, Daniel P. Berrange, 2016/01/12
- Re: [Qemu-devel] usb-storage assertions, Gerd Hoffmann, 2016/01/13
- Re: [Qemu-devel] usb-storage assertions,
Andrey Korolyov <=
- Re: [Qemu-devel] usb-storage assertions, Andrey Korolyov, 2016/01/15
- Re: [Qemu-devel] usb-storage assertions, Gerd Hoffmann, 2016/01/18
- Re: [Qemu-devel] usb-storage assertions, Andrey Korolyov, 2016/01/18
- Re: [Qemu-devel] usb-storage assertions, Gerd Hoffmann, 2016/01/18
- Re: [Qemu-devel] usb-storage assertions, Andrey Korolyov, 2016/01/18
- Re: [Qemu-devel] usb-storage assertions, Gerd Hoffmann, 2016/01/19
- Re: [Qemu-devel] usb-storage assertions, Andrey Korolyov, 2016/01/19
- Re: [Qemu-devel] usb-storage assertions, Gerd Hoffmann, 2016/01/19
- Re: [Qemu-devel] usb-storage assertions, Gerd Hoffmann, 2016/01/19