[PATCH] st: null pointer dereference panic caused by use after kref_put by st_open

2015-07-02 Thread Seymour, Shane M
Two SLES11 SP3 servers encountered similar crashes simultaneously following some kind of SAN/tape target issue: ... qla2xxx [:81:00.0]-801c:3: Abort command issued nexus=3:0:2 -- 1 2002. qla2xxx [:81:00.0]-801c:3: Abort command issued nexus=3:0:2 -- 1 2002. qla2xxx [:81:00.0]-8009:3

Re: [PATCH] st: null pointer dereference panic caused by use after kref_put by st_open

2015-07-02 Thread Johannes Thumshirn
"Seymour, Shane M" writes: > Two SLES11 SP3 servers encountered similar crashes simultaneously > following some kind of SAN/tape target issue: > Thanks, Reviewed-by: Johannes Thumshirn -- Johannes Thumshirn Storage jthumsh...@suse.de

Re: [PATCH] st: null pointer dereference panic caused by use after kref_put by st_open

2015-07-02 Thread Kai Mäkisara (Kolumbus)
> On 2.7.2015, at 15.01, Seymour, Shane M wrote: > > > Two SLES11 SP3 servers encountered similar crashes simultaneously > following some kind of SAN/tape target issue: > ... > The crash is fixed by reordering the code so we no longer access > the struct scsi_tape after the kref_put() is done