Re: [gentoo-user] Long boot time after kernel update

[Jacques Montier]

Le mar. 28 déc. 2021 à 13:32, Dale <rdalek1967@×××××.com> a écrit :

> William Kenworthy wrote:
> > A point to keep in mind - if you can feel the drive moving it may be
> > generating errors!  Depending on the drive, the errors may just be
> > handled internally and I can see it slowing things down though
> > probably would be barely noticeable.  I have seen it myself with
> > random errors from a WD green drive disappearing when properly
> > immobilised.  When investigating I ran across articles discussing the
> > problem, one of which fastened the drives to a granite slab for
> > tests!  Also see discussions on NAS seups and vibrations affecting co
> > located drives.
> >
> > BillK
> >
> > ** Interesting read
> > https://www.ept.ca/features/everything-need-know-hard-drive-vibration/
> >
>
> This is just because it is a SMR drive.  It's done this ever since I
> bought the drive and it has passed all tests.  There's a whole thread on
> this dating back several years.  I managed to buy a SMR drive before I
> even knew they existed.  Once it fills up that PMR section, it gets
> really slow.
>
> Dale
>
> :-)  :-)
>
>
Hello all,

Thanks a lot for all your responses !
I think this issue is kernel related.
No problem with 5.10.76-gentoo-r1, but the issue appears
with 5.15.11-gentoo.

I read on the net that it could be possible to desactivate the sata
protocol NCQ (Native Command Queuing)
So, in the grub file, i added the
ligne GRUB_CMDLINE_LINUX=libata.force=noncq
Now, all the errors messages are gone and the booting time gets down to 24s
with the two kernel versions.
BUT : do you think it could damage or slow down my SSD and HDD disks ?

Thanks again,

Regards,

--
Jacques