[linux-lvm] Can LVM block I/O and hang a system?

[Alasdair G Kergon]

On Wed, Sep 12, 2007 at 12:15:43PM +0200, Lars Ellenberg wrote:
> then, if there are still lockups, these may be caused by lvm, and may be
> due to some similar problem, namely doing synchronous (housekeeping) io
> from within the generic_make_request path within the same "thread".
 
We moved the housekeeping out of the way, but there can still be
problems when an incoming piece of I/O needs to be split between
devices.

Alasdair
-- 
agk at redhat.com