On Wed, 17 Nov 2021 16:20:58 +0530, Sreekanth Reddy wrote:
> While determining the SAS address of a drive, the driver checks whether
> the handle number is less than the HBA phys count or not.
> If the handle number is less than the HBA phy’s count then driver
> assumes that this handle belongs to HBA and hence it assigns the
> HBA SAS address.
> During IOC firmware downgrade operation, if the number of HBA phys got
> reduced and the OS drive’s device handle falls below start of the day
> HBA phys count then while determining the OS drive’s SAS address
> driver uses the HBA SAS address. This leads to a mismatch of drive’s
> SAS address and hence the driver unregisters the OS drive and the
> system falls into read only mode.
>
> [...]
Applied to 5.16/scsi-fixes, thanks!
[1/1] mpt3sas: Fix system falling into readonly mode
https://git.kernel.org/mkp/scsi/c/91202a01a2fb
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Martin K. Petersen Oracle Linux Engineering
