Ubuntu
linux package

  1. Bug #1451277
  2. Comment #20

Comment 20 for bug 1451277

Revision history for this message
Sergio Callegari (callegar) wrote :

Bisected.

Bug seen after commit 045065d8a300a37218c548e9aa7becd581c6a0e8 [SCSI] fix qemu boot hang problem.

Actually, the problem is not with that commit that is perfectly fine. That commit merely lets the real bug be triggered.

Real bug is with scsi host lock and likely to be triggered by mixing a slow and a fast device on the same IDE/SATA channel.

Bug is also biting other distros. See https://bbs.archlinux.org/viewtopic.php?id=189324

Bug is known to kernel developers.

https://lkml.org/lkml/2015/8/16/44

https://bugzilla.kernel.org/show_bug.cgi?id=87581

Bug is fixed by following patch by Christoph Hellwig, that unfortunately is not yet applied upstream

https://lkml.org/lkml/2014/11/20/581