On 08/31/16 20:29, Mike Snitzer wrote: > On Wed, Aug 31 2016 at 6:18pm -0400, > Bart Van Assche <bart.vanassche@xxxxxxxxxxx> wrote: > >> If pg_init_retries is set and a request is queued against a >> multipath device with all underlying block devices in the "dying" >> state then an infinite loop is triggered because activate_path() >> never succeeds and hence never calls pg_init_done(). Fix this by >> making ql_select_path() skip dying paths. > > Assuming DM multipath needs to be sprinkling these dying queue checks so > deep (which I'm not yet sold on): > > Same would be needed in service-time and round-robin right? Hello Mike, Before addressing service-time and round-robin path selectors I wanted to make sure that we reach agreement about how to fix the queue length path selector. Do you have a proposal for an alternative approach to fix the infinite loop that can be triggered during device removal? Thanks, Bart. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
