[OpenIndiana-discuss] MPT SGL mem alloc failed

[Timothy Coalson]

After rebooting to oi_151a4, and scrub, clear, scrub, the pool says
that it is completely healthy, no data errors, no device errors, no
repaired bytes (on the second scrub that is, on the first scrub there
were enough checksum errors for it to report all of the devices in one
vdev as degraded).  Additionally, no mpt_sas errors in
/var/adm/messages.  Created bug #2994 for it:
https://www.illumos.org/issues/2994

Not sure if newer firmware on the HBAs would help, but I will wait for
someone to pick up the bug before trying anything.

Tim

On Mon, Jul 9, 2012 at 5:29 PM, Timothy Coalson <tsc5yc at mst.edu> wrote:
> Well, I don't have the same symptoms as him, his swap was almost entirely used:
>
> tim at myelin2:/var/adm$ swap -lh
> swapfile             dev    swaplo   blocks     free
> /dev/zvol/dsk/rpool/swap 96,2        4K      12G      12G
>
> Though I am not logged into a desktop (it is sitting at the gdm
> greeter).  This machine also doesn't have nvidia graphics, so can't
> compare there, either.
>
> Tim
>
> On Mon, Jul 9, 2012 at 5:09 PM, Bill Sommerfeld <sommerfeld at alum.mit.edu> wrote:
>> On 07/09/12 13:17, Timothy Coalson wrote:
>>> I upgraded a machine to oi_151a5 from oi_151a4 last week, and when its
>>> weekly scrub rolled around, /var/adm/messages gathered a lot of these,
>>> in groups of dozens at a time:
>>>
>>> Jul  7 01:15:21 myelin2 scsi: [ID 107833 kern.warning] WARNING: /pci at 0,0/pci8086
>>> ,340a at 3/pci1000,30c0 at 0 (mpt_sas0):
>>> Jul  7 01:15:21 myelin2         Unable to allocate dma memory for extra SGL.
>>> Jul  7 01:15:21 myelin2 scsi: [ID 107833 kern.warning] WARNING: /pci at 0,0/pci8086
>>> ,340a at 3/pci1000,30c0 at 0 (mpt_sas0):
>>> Jul  7 01:15:21 myelin2         MPT SGL mem alloc failed
>>
>> so this may be completely unrelated but over on on oi-dev, someone recently
>> reported a different driver-related kernel memory allocation issue with the
>> nvidia driver with oi151a5 which he did not see with oi151a3 / 0.151.1.4
>>
>> See http://openindiana.org/pipermail/oi-dev/2012-July/001541.html
>>
>> Coincidence?  Another manifestation of the same underlying bug?
>>
>>
>>
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