[Bug 215788] arcmsr driver on kernel 5.16 and up fails to initialize ARC-1280ML RAID controller

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=215788

--- Comment #7 from Damien Le Moal (damien.lemoal@wdc.com) ---
On Wed, 2022-04-06 at 06:59 +0000, bugzilla-daemon@kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=215788
> 
> --- Comment #6 from Jernej Simončič (jernej-bugzilla.kernel@ena.si) ---
> Doesn't help unfortunately.

Hmm... And everything is OK if you comment out that function call ?

Can you post the output of these commands for the RAID disk ?

sg_inq /dev/sdX
sg_inq --vpd /dev/sdX
sg_vpd -E /dev/sdX
sg_logs -l -l /dev/sdX

And then last:

sg_vpd --force --page=0xb9 /dev/sdX

This last command could be the one crashing the HBA/drive so beware.
Your drive clearly should not be supporting vpd page 0xb9, so
sd_read_cpr() should be a nop, doing nothing. It does not seem to be
the case. Maybe this adapter uses page 0xb9 as a vendor specific one,
causing problems. The above commands will allow checking that.

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