[Bug 196543] Adaptec 6405H can not understand Queue full message from Disks.

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=196543

--- Comment #2 from Kazufumi Watanabe (kiyomi.kakitsubata@gmail.com) ---
Dear James

Thank you for your message.
I want give you result of sas bus trace,
but company do not give me grant permission of take data outside.

I think sorry to you not give data of bus trace.

Well, I can tell you what is happen.

Environment:
SAS HBA: 
Microsemi Adaptec 6405H/7085H
(Other SAS HBA not happend.ex Broadcom 9300-8E Adaptec 1000-8E)
OS:
Fedora26/CentOS7.3
openSUSE Leap 42.3

At install OS,when format partitions,
HBA send some commands to a SSD device(I don't know what command is send to a
SSD device).

When device's queue is full,it return "queue full" message to HBA,
but it was sending other command  to device.
I think a situation remaining the same,so OS can not install to SSD device.

This problem is SAS HBA continue sending command when receive "queue full"
message,
and kernel can not  detect it.

Cheers
Kazufumi Watanabe

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