From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 151661] Adaptec 3405 3805 prints "AAC: Host adapter dead -1"
every 10 seconds but works fine anyway
Date: Sun, 15 Jan 2017 11:10:11 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=151661
--- Comment #18 from Arkadiusz Miskiewicz ---
The problem was introduced with commit below. Reverting this commit from kernel
4.9.3 makes the problem go away.
https://lkml.org/lkml/2017/1/15/47
commit 78cbccd3bd683c295a44af8050797dc4a41376ff
Author: Raghava Aditya Renukunta
Date: Mon Apr 25 23:32:37 2016 -0700
aacraid: Fix for KDUMP driver hang
When KDUMP is triggered the driver first talks to the firmware in INTX
mode, but the adapter firmware is still in MSIX mode. Therefore the first
driver command hangs since the driver is waiting for an INTX response and
firmware gives a MSIX response. If when the OS is installed on a RAID
drive created by the adapter KDUMP will hang since the driver does not
receive a response in sync mode.
Fixed by: Change the firmware to INTX mode if it is in MSIX mode before
sending the first sync command.
Cc: stable@vger.kernel.org
Signed-off-by: Raghava Aditya Renukunta
Reviewed-by: Johannes Thumshirn
Signed-off-by: Martin K. Petersen
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