AuxXxilium/linux_dsm_epyc7002
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b9e5a2d961
linux_dsm_epyc7002/drivers/scsi/lpfc
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James Smart b9e5a2d961 scsi: lpfc: Fix hardlockup in scsi_cmd_iocb_cmpl 
There is a race condition with the abort handler declaring a waitq
item on it's stack, followed by a timeout in the abort handler that
has it give up on the abort return to its caller. When the io is
finally aborted and its completion handler called, it references
the waitq element that the abort_handler set up, which is no longer
valid resulting in a deadlock.

Fix by clearing the waitq reference, under lock, when the abort
handler timeout gives up. Have the completion handler validate the
waitq before referencing it.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-06-18 19:46:21 -04:00
..
lpfc_attr.c scsi: lpfc: Revert message logging on unsupported topology 2019-06-18 19:46:21 -04:00
lpfc_attr.h scsi: lpfc: Revise copyright for new company language 2018-07-10 22:15:09 -04:00
lpfc_bsg.c scsi: lpfc: Update Copyright in driver version 2019-03-19 13:15:10 -04:00
lpfc_bsg.h scsi: lpfc: Update Copyright in driver version 2019-03-19 13:15:10 -04:00
lpfc_compat.h scsi: lpfc: Revise copyright for new company language 2018-07-10 22:15:09 -04:00
lpfc_crtn.h scsi: lpfc: Separate CQ processing for nvmet_fc upcalls 2019-06-18 19:46:21 -04:00
lpfc_ct.c scsi: lpfc: Annotate switch/case fall-through 2019-04-03 23:11:35 -04:00
lpfc_debugfs.c scsi: lpfc: change snprintf to scnprintf for possible overflow 2019-03-25 22:14:16 -04:00
lpfc_debugfs.h scsi: lpfc: change snprintf to scnprintf for possible overflow 2019-03-25 22:14:16 -04:00
lpfc_disc.h scsi: lpfc: Fix discovery failures during port failovers with lots of vports 2018-12-07 22:35:32 -05:00
lpfc_els.c scsi: lpfc: Fix PT2PT PLOGI collison stopping discovery 2019-06-18 19:46:21 -04:00
lpfc_hbadisc.c scsi: scsi_transport_fc: nvme: display FC-NVMe port roles 2019-04-12 20:09:34 -04:00
lpfc_hw4.h scsi: lpfc: Move trunk_errmsg[] from a header file into a .c file 2019-04-03 23:11:36 -04:00
lpfc_hw.h scsi: lpfc: add support for posting FC events on FPIN reception 2019-04-08 21:29:16 -04:00
lpfc_ids.h scsi: lpfc: Revise copyright for new company language 2018-07-10 22:15:09 -04:00
lpfc_init.c scsi: lpfc: Fix nvmet handling of received ABTS for unmapped frames 2019-06-18 19:46:21 -04:00
lpfc_logmsg.h scsi: lpfc: Revise copyright for new company language 2018-07-10 22:15:09 -04:00
lpfc_mbox.c SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
lpfc_mem.c scsi: lpfc: refactor mailbox structure context fields 2018-12-07 22:35:32 -05:00
lpfc_nl.h scsi: lpfc: Revise copyright for new company language 2018-07-10 22:15:09 -04:00
lpfc_nportdisc.c scsi: lpfc: Remove set-but-not-used variables 2019-04-03 23:11:36 -04:00
lpfc_nvme.c scsi: lpfc: Revise message when stuck due to unresponsive adapter 2019-06-18 19:46:21 -04:00
lpfc_nvme.h SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
lpfc_nvmet.c scsi: lpfc: Cancel queued work for an IO when processing a received ABTS 2019-06-18 19:46:21 -04:00
lpfc_nvmet.h scsi: lpfc: Fix nvmet handling of received ABTS for unmapped frames 2019-06-18 19:46:21 -04:00
lpfc_scsi.c scsi: lpfc: Fix hardlockup in scsi_cmd_iocb_cmpl 2019-06-18 19:46:21 -04:00
lpfc_scsi.h scsi: lpfc: Update 12.2.0.0 file copyrights to 2019 2019-02-05 22:29:50 -05:00
lpfc_sli4.h scsi: lpfc: Fix nvmet handling of received ABTS for unmapped frames 2019-06-18 19:46:21 -04:00
lpfc_sli.c scsi: lpfc: Separate CQ processing for nvmet_fc upcalls 2019-06-18 19:46:21 -04:00
lpfc_sli.h scsi: lpfc: Coordinate adapter error handling with offline handling 2019-03-19 12:57:02 -04:00
lpfc_version.h scsi: lpfc: Update lpfc version to 12.2.0.1 2019-03-19 13:15:10 -04:00
lpfc_vport.c scsi: lpfc: Update 12.2.0.0 file copyrights to 2019 2019-02-05 22:29:50 -05:00
lpfc_vport.h scsi: lpfc: Revise copyright for new company language 2018-07-10 22:15:09 -04:00
lpfc.h scsi: lpfc: Correct boot bios information to FDMI registration 2019-03-19 13:15:09 -04:00
Makefile scsi: lpfc: Revise copyright for new company language 2018-07-10 22:15:09 -04:00