Re: [PATCH] ahci: add Marvell support (WIP)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



George T. Joseph (development) wrote:
Hi Jeff,

Two issues with the patch...

msi has to be disabled for the Marvell or the driver load will throw a
"nobody cared" message and eventually hang before discovering all the
drives.

Light I/O works fine but heavy I/O generates "exception Emask 0x0 Sact 0xb Serr 0x0 action 0x2 frozen"
Then softreset and identify failures.
Adding AHCI_FLAG_NO_NCQ to the flags fixes this.

I've been running with both these changes over your original patch for a
few months now with no problems.  This is on a very heavily used 4 drive
mdraid10 array.


I poked Marvell about this, we'll see what they say.

If I don't hear anything useful, I'll push the no-MSI, no-NCQ version upstream.

	Jeff


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux