svn commit: r287876 - in projects/iosched/sys/cam: . ata scsi

[Warner Losh]

On Thu, Sep 17, 2015 at 9:07 AM, Bruce Simpson <bms at fastmail.net> wrote:

> On 17/09/15 15:16, Warner Losh wrote:
>
>> This isn't even in -current yet, but this will work in 10.x. It's
>> dependent, at the moment,
>> on the I/O scheduler work I've done in this project branch. There's
>> nothing intrinsic about
>> that.
>>
>
> That is good news; the bug specifically affected NCQ'd TRIM commands.
> Performing TRIM manually is an admin headache and gets old, fast.


We don't do NCQ Trims today. When I deployed, I had massive corruption on
M500's that I developed for after a few hours to days. We do have non-NCQ
Trims and those work just fine on these drives. However, they serialize
other reads and writes.

I hope to forward port this to -current soon.

Warner