[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Stubdom and blktap
Yang, Xiaowei wrote: > Recently we had a try of stubdom, whose general status is good. > > One issue we found is with aio/sync blktap as backend, disk performance > is obviously slower, and there are some IDE kernel error messages (like > irq timeout) at boot time. I'll try to reproduce the problem, thanks for reporting it. > Another issue (not stubdom specific) comes from blktap's support for > QCOW image which is based on a backing file. We never tried this > configure before. The root cause is that in tdqcow_get_parent_id(), the > backing file is hard-coded to be QCOW type and tdqcow_validate_parent() > also presumes it, though the backing file is a raw image normally. With > the image type set correctly and a good method for image validation, > QCOW works. > I am not sure to understand what the issue is exactly: there is no image format guessing using blktap, the user is supposed to specify correctly the format in the VM configuration file. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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