Re: [PATCH v2 0/4] scsi_dh_alua: fix stuck I/O after unavailable/standby states

2017-07-10 Thread Mauricio Faria de Oliveira
On 07/10/2017 07:47 PM, Mauricio Faria de Oliveira wrote: This patchset addresses that problem, and adds a few improvements to the logging of PG state changes. Here are some kernel log snippets with the patchset, if that helps. The 2 port groups temporarily gone into unavailable state, and rec

[PATCH v2 0/4] scsi_dh_alua: fix stuck I/O after unavailable/standby states

2017-07-10 Thread Mauricio Faria de Oliveira
Currently, scsi_dh_alua fails I/O requests early on once ALUA state unavailable/standby occur, which prevents path checkers to actually check if I/O still fails or now works. Then I/O requests are blocked indefinitely due to queue_if_no_path but the underlying individual paths are fully operationa