Multipath failing paths with the `blk_cloned_rq_check_limits: over max segments limit` errors
Issue
-
Continuous path flapping observed for
DM-multipath
devices in the logs following theover max segments limit
errors.host1 kernel: [990993.139225] blk_cloned_rq_check_limits: over max segments limit. host1 kernel: [990993.167545] device-mapper: multipath: Failing path 67:96. host1 multipathd: 67:96: mark as failed host1 multipathd: mpatha: Entering recovery mode: max_retries=6 host1 multipathd: mpatha: remaining active paths: 0 host1 multipathd: maptha: sdaf - tur checker reports path is up host1 multipathd: 67:96: reinstated host1 multipathd: mpatha: queue_if_no_path enabled host1 multipathd: mpatha: Recovered to normal mode host1 multipathd: mpatha: remaining active paths: 1
Environment
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- SAN LUNs with
DM-Multipathing
. - Systems with
Emulex FC HBA
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