On 02/06/2015 16:36, Christian Borntraeger wrote: > commit a0710f7995f914e3044e5899bd8ff6c43c62f916 > Author: Paolo Bonzini <pbonz...@redhat.com> > AuthorDate: Fri Feb 20 17:26:52 2015 +0100 > Commit: Kevin Wolf <kw...@redhat.com> > CommitDate: Tue Apr 28 15:36:08 2015 +0200 > > iothread: release iothread around aio_poll > > to cause a problem with hanging guests. > > Having many guests all with a kernel/ramdisk (via -kernel) and > several null block devices will result in hangs. All hanging > guests are in partition detection code waiting for an I/O to return > so very early maybe even the first I/O. > > Reverting that commit "fixes" the hangs. > Any ideas?
Stefan, please revert it as I will not have time to look at it until well into 2.4 soft freeze. Paolo
