Hi Dominik,
Thanks for the information. I will put this in the bug report. I hope to
be able to try this out for myself soon.
By the way, 6786704 only affects error handling. I think this CR might
have made a difference:
6458733 si3124 sata HBA driver has arbitrary low number of
scatter-gather entries affecting performance
Mark
On 09/ 9/10 05:55 AM, Dominik Sadowski wrote:
Good news: It's look like 100% wait stalls bug appearing on si3124 driver (and
thus on si3132 chipsets which use that driver) is fixed in recent nevada
builds. I replaced binary si3124 driver with one from snv_145 provided by
Illumos IPS repo for upgrading Opensolaris b134 build os in order to compile
Illumos (see their build tutorial at:
http://www.illumos.org/projects/illumos-gate/wiki/How_To_Build_illumos p. 3
'Upgrade to b145'). My subjective feeling is that fix for Bug ID 6786704
(fixed in snv_136) also fixed this bug.
I tested my si3132 based storage throughly for few weeks and I didn't noticed
write stall nor performance degradation that I experienced (and described in
this topic) earlier. I found only one issue with 100% wait bug on snv_145
si3124 driver - 100% wait bug may appear occasionally when zpool import takes
place - and in that case it least forever completly blocking i/o on imported
zpool and thus leading to ZFS hangup (it's impossible to execute another zfs
cmd).
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