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Re: kern/54790: 9.0_RC1 kernel crash in ata_recovery_resume() (in NCQ support?)
The following reply was made to PR kern/54790; it has been noted by GNATS.
From: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>
Subject: Re: kern/54790: 9.0_RC1 kernel crash in ata_recovery_resume() (in NCQ
Date: Mon, 23 Dec 2019 02:03:03 +0900
After I set "sysctl -w hw.wd2.use_ncq=0", the problem
(not only kernel fault but also timeout and read/write errors)
does not happen on the same machine/configurations.
So I guess something wrong in new NCQ support,
especially with fast SSDs?
I also wonder whether
> ahcisata0: ignoring broken port multiplier support
this quirk message affects NCQ implementation or not.
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