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Re: kern/48449: y2038 shortcomings of ffsv1

The following reply was made to PR kern/48449; it has been noted by GNATS.

From: =?UTF-8?B?SmFyb23DrXIgRG9sZcSNZWs=?= <>
To: "" <>
Subject: Re: kern/48449: y2038 shortcomings of ffsv1
Date: Wed, 16 Jun 2021 22:33:27 +0200

 Le mer. 16 juin 2021 =C3=A0 11:40, Robert Elz <> a =C3=A9c=
 rit :
 >  All of this for a pointless change...
 >  [On my bizarre suggestion to steal the upper 2 bits from the
 >  nanoseconds field]:
 I really like the suggestion for reusing the unused upper 2 bits for
 the time for FFSv1 filesystems. It's guaranteed to be unused on all
 existing filesystems, and does not require any changes to existing
 inodes nor new superblock fields. Perfect for when you fire up some
 old forgotten VM in 30 years.
 It should be also relatively easy to convince other BSDs to mask out
 those bits at least, so it would be somewhat interoperable.
 As for active support for old FFSv1 hardware .. Well, I don't know. Is
 there actually anything produced in the last 20 years? How likely is
 it that any of that will be still operational in another 18 years?

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