From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 60644] MPT2SAS drops all HDDs when under high I/O
Date: Sun, 19 Jan 2014 12:17:55 +0000
Message-ID: <bug-60644-11613-cbR4a4lwrE@https.bugzilla.kernel.org/>
References: <bug-60644-11613@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=60644

--- Comment #43 from Konstantin <ktrackfd@gmail.com> ---
Hello all,

enabling "Above 4G encoding" in the bios did not help in my case.

I enabled PERR and SERR as well. PCIe ASPM is forced on by the bios and the
kernel.

When I scrub my zpool, the system locks up. This time at 7.13% progress. After
a reset the scrubbing continues and sometimes the locks up a second time.

So in general I get 1-2 lockups during a scrub, but it always finishes the
scrub without errors (ofc when the disks drop out the zfs scrubbing mentions
errors).

Hardware:

Case: Inter-Tech 4HU-4324L
Board: Supermicro X9SCM-F
CPU: Intel Xeon E3-1230 V2
RAM: 2x8GB ECC ( Samsung M391B1G73BH0-CH9 )
HBA: IBM ServeRAID M1015 ( IT mode, FW version 17 )
Disks: 10x 3TB WD Green ( WD30EZRX ) and 1x 3TB Hitachi ( HDS5C303 )

Software:

- Gentoo hardened, kernel 3.12.6-hardened-r4 (other kernel version failing,
too)
- All the disks luks encrypted
- A pool "rpool" for the system on a ssd
- A pool "tank" for the data on a raidz3

I have attached "zpool status" and dmesg logs (see posts above).

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