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| author | Dick Kennedy | 2017-11-07 21:59:02 +0100 |
|---|---|---|
| committer | Martin K. Petersen | 2017-11-09 00:25:12 +0100 |
| commit | 341b2aa83368e6f23bf0cc3d04604896337ad7cb (patch) | |
| tree | e7858cc574c7a7e1c7ac3eab3536f7fef90a5e16 /drivers/scsi/osst.c | |
| parent | scsi: mpt3sas: remove a stray KERN_INFO (diff) | |
| download | kernel-qcow2-linux-341b2aa83368e6f23bf0cc3d04604896337ad7cb.tar.gz kernel-qcow2-linux-341b2aa83368e6f23bf0cc3d04604896337ad7cb.tar.xz kernel-qcow2-linux-341b2aa83368e6f23bf0cc3d04604896337ad7cb.zip | |
scsi: lpfc: Fix hard lock up NMI in els timeout handling.
System crashed due to a hard lockup at lpfc_els_timeout_handler+0x128.
The els ring's txcmplq list is corrupted: the last element in the list
does not point back the the head causing a loop. Issue is the els
processing path for sli4 hbas are using the hbalock instead of the
ring_lock for removing elements from the txcmplq list.
Use the adapter SLI_REV to determine which lock should be used for
removing iocbqs from the els rings txcmplq.
note: the future refactoring will address this so that we don't have
this ugly type-based lock code.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/osst.c')
0 files changed, 0 insertions, 0 deletions