Kamigishi Rei wrote: > Alexander Motin wrote: >>> ahcich1: ALL SLOTS BUSY! >>> Is it purely informational or does it indicate a problem? (I'm using >>> Intel Q35+ICH9 in AHCI mode.) >> It is bad. It must never happen. It means that driver got more >> commands then it has empty slots available. Results can be unpredictable. >> How have you manage it? Were there any other messages around? > No other messages. Going to try your patch from the followup message. > Basically, I did nothing out of the ordinary. I'm running mysqld, > postgres, and two lighttpds in jails, one of the lighttpds is serving > huge media files. > The messages appeared mostly during "make buildworld" for one of the > GEOM_MIRROR drives (/usr/obj operations probably) and for one of raidz1 > drives (where /usr/src resides). It could be not a real bug, but incorrect diagnostic, in situation, when the last of 32 submitted command finishes first. NCQ in practice. :) -- Alexander MotinReceived on Mon Jun 29 2009 - 12:53:13 UTC
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