** Changed in: linux (Ubuntu Noble)
Status: Fix Committed => Fix Released
** Also affects: linux (Ubuntu Oracular)
Importance: Undecided
Status: Fix Committed
** Changed in: linux (Ubuntu Oracular)
Status: Fix Committed => Fix Released
** Changed in: linux (Ubuntu Jammy)
Status: Incomplete => In Progress
** Information type changed from Private to Public
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https://bugs.launchpad.net/bugs/2053224
Title:
22.04.x - Request to Add Patches to fix the I/O Lock Up issues on
PowerEdge Systems
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Jammy:
In Progress
Status in linux source package in Mantic:
Incomplete
Status in linux source package in Noble:
Fix Released
Status in linux source package in Oracular:
Fix Released
Bug description:
[Impact]
Request to Add Patches to fix the I/O Lock Up issues on PowerEdge Systems
Hello Team,
One of our internal team has assessed that having only the 1st patch
included in OS will cause issue of encountering I/O lock-up while
running PowerFlex I/O workloads on drives connected to PowerEdge R750s
with HBA355i. The remedy is to include the 2nd patch as well into the
OS as early as possible.
I have attached the details of two patches for which I would like to
know status of whether they are included in the below OS already? If
not, when will be they included(Need ETA)?
o Ubuntu22.04.3 & 22.04.4
[Fix]
Patch Details:
1. Patch-1 https://lkml.kernel.org/linux-
scsi/20230713075302.10073-1-ranjan.ku...@broadcom.com/T/
2. Patch-2 https://lore.kernel.org/linux-
scsi/169868005494.2933713.2562282002343167126.b4...@oracle.com/T/
This request is for both LTS and HWE kernels.
[Test Plan]
On a system configured with HBA and installed ubuntu 22.04.3
1. Perform IO stress on the drives connected to HBA.
2. Observe IO applications are not functioning as anticipated, resulting in
the HBA being reset and OS logs may show the following messages.
“mpt3sas_cm0: sending diag reset !!"
"mpt3sas_cm0: mpt3sas_base_hard_reset_handler: SUCCESS"
[ Where problems could occur ]
The IO-Lock up issue is observed on a system running the latest kernel of
Ubuntu 22.04.3 which consist of below mentioned patch.
- scsi: mpt3sas: Perform additional retries if doorbell read returns 0
[ Other Info ]
Jammy
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/jammy/+ref/lp_2053224_ifix_io_lockup
Mantic
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/mantic/+ref/fix_io_loop_poweredge
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