Messages in this thread | | | From | "Nicholas A. Bellinger" <> | Subject | [PATCH-v2 0/2] mpt3sas: Reference counting fixes from for-next mpt2sas | Date | Sun, 30 Aug 2015 07:54:37 +0000 |
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From: Nicholas Bellinger <nab@linux-iscsi.org>
Hi all,
This series is a mpt3sas LLD forward port of Calvin Owens' for-next reference counting bugfix series for mpt2sas LLD code.
His latest patch series can be found here:
[PATCH v4 0/2] Fixes for memory corruption in mpt2sas http://marc.info/?l=linux-scsi&m=143951695904115&w=2
The differences between mpt2sas + mpt3sas in this area are very small, and the changes are required to address a class of long standing NULL pointer dereference bugs through-out both LLDs.
With Calvin's changes in place for mpt3sas, the original NULL pointer dereference OOPsen during probe with a failed HDD appear to be resolved, and so far no new regressions have been reported with -v1 series code.
The -v1 series code for mpt3sas has been tested on v3.14.47 with 40x SAS3008 HBAs, with three preceeding upstream mpt3sas patches:
4dc06fd mpt3sas: delay scsi_add_host call to work with scsi-mq 35b6236 mpt3sas: combine fw_event_work and its event_data 62c4da4 mpt3sas: correct scsi_{target,device} hostdata allocation
Please review.
--nab
-v2 changes: - Fix _scsih_block_io_device() v4.3-rc0 brekage - Fix mpt3sas_transport_port_add() v4.3-rc0 breakage
Nicholas Bellinger (2): mpt3sas: Refcount sas_device objects and fix unsafe list usage mpt3sas: Refcount fw_events and fix unsafe list usage
drivers/scsi/mpt3sas/mpt3sas_base.h | 25 +- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 595 ++++++++++++++++++++++--------- drivers/scsi/mpt3sas/mpt3sas_transport.c | 18 +- 3 files changed, 458 insertions(+), 180 deletions(-)
-- 1.9.1
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