Messages in this thread | | | Date | Wed, 03 Aug 2011 15:53:44 +0100 | From | "Jan Beulich" <> | Subject | Re: [Xen-devel] [PATCH 0/3] xen-blkback: refactor vbd remove/disconnect. |
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>>> Joe Jin 08/03/11 4:10 AM >>> >1. start guest with the latest kernel. >2. attach new block device by xm block-attach in Dom0 >3. mount new disk in guest >4. execute xm block-detach to detach the block device in dom0 until timeout >5. try to unmount the disk in guest, umount hung. at here, any IOs to the >device will hang.
A bogus sequence of operations - an operator in Dom0 shouldn't remove a device that is still in use in a guest, except as an exceptionasl measure (and then other bad behavior is to be expected). What's the use case?
Jan
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