Re: smp-induced oops/NULL pointer dereference in mpt3sas, from kernel >= 4.11

2017-09-04 Thread Guilherme G. Piccoli
On 09/04/2017 05:44 PM, Guilherme G. Piccoli wrote: > [Hopefully this messages gets threaded properly...] And of course, I forgot to CC linux-scsi heheh Sorry! > > Chaitra, the following 4 patches fix this issue (the last one is really > the fix, the others are part of the patchset): > > > htt

Re: smp-induced oops/NULL pointer dereference in mpt3sas, from kernel >= 4.11

2017-08-17 Thread Bart Van Assche
On Thu, 2017-08-17 at 15:18 +0530, Chaitra Basappa wrote: > We analyzed this issue and could figure out it is not because of driver, > its because the "sense" field of the 'struct scsi_request' is not being > populated properly from the upper layer. > And this "sense" member is being referenced in

smp-induced oops/NULL pointer dereference in mpt3sas, from kernel >= 4.11

2017-08-17 Thread Chaitra Basappa
Hi All, In testing kernel 4.11.1 and 4.11.6 we've hit an oops/ blown pointer issue in mpt3sas. It is easily reproducible on a system that contains expanders/enclosure connected behind SAS3 HBA. Soon after connecting expander / enclosure we observe below call trace. Jul 12 15:28:27 localhost kern