From: Ralph Corderoy <ralph@inputplus.co.uk>
To: tuhs@tuhs.org
Subject: [TUHS] Re: Clever code
Date: Tue, 13 Dec 2022 08:05:37 +0000 [thread overview]
Message-ID: <20221213080537.AF4E521911@orac.inputplus.co.uk> (raw)
In-Reply-To: <CAKr6gn2mv08dYr4D9V-ors8iAmUdtuTzr36y_jAokp2w-4tJJQ@mail.gmail.com>
Hi George,
> The "sticky" bit was quite clever. tell the OS to keep something
> memory resident
Was it ever more than a hint? I've not heard of it locking or pinning
an executable to memory.
> so you can binary patch the back end without worrying.
I think it altered the worrying. :-)
If not sticky, ‘chmod -x’ the file, ensure no process is running it from
before the chmod, patch, ‘chmod +x’.
If sticky then ‘chmod -tx’, ensure no process is running it from before
the chmod, ‘chmod +x’, run it and exit to remove any stuck copy,
‘chmod -x’, patch, chmod ‘+tx’.
I may have got the detail wrong but avoiding the unpatched copy
lingering in memory is the aim.
--
Cheers, Ralph.
next prev parent reply other threads:[~2022-12-13 8:06 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-13 3:30 Rudi Blom
2022-12-13 3:41 ` Warner Losh
2022-12-13 3:53 ` Dave Horsfall
2022-12-13 4:03 ` George Michaelson
2022-12-13 8:05 ` Ralph Corderoy [this message]
2022-12-13 9:45 ` Dagobert Michelsen
2022-12-13 7:47 ` Ralph Corderoy
2022-12-13 19:56 ` Dave Horsfall
2022-12-13 11:46 ` John P. Linderman
2022-12-13 14:07 ` Douglas McIlroy
2022-12-13 14:31 ` arnold
2022-12-13 14:48 ` Ralph Corderoy
2022-12-13 15:10 ` Douglas McIlroy
2022-12-13 15:34 ` Stuff Received
2022-12-13 15:56 ` Ralph Corderoy
2022-12-13 23:02 ` Harald Arnesen
2022-12-14 7:31 ` arnold
2022-12-15 18:06 ` Marc Donner
2022-12-15 18:08 ` Marc Donner
2022-12-15 6:30 ` [TUHS] Delay line memory (was: Clever code) Greg 'groggy' Lehey
2022-12-13 15:52 ` [TUHS] Re: Clever code Bakul Shah
2022-12-13 16:14 ` Ralph Corderoy
2022-12-13 16:30 ` Bakul Shah
2022-12-15 6:39 ` [TUHS] Sector interleaving (was: Clever code) Greg 'groggy' Lehey
-- strict thread matches above, loose matches on Subject: below --
2022-12-13 18:02 [TUHS] Re: Clever code Noel Chiappa
2022-12-13 17:58 Noel Chiappa
2022-12-13 18:51 ` G. Branden Robinson
2022-12-13 20:14 ` segaloco via TUHS
2022-12-13 20:58 ` Warren Toomey via TUHS
2022-12-14 2:28 ` Luther Johnson
2022-12-11 20:03 [TUHS] Re: Stdin Redirect in Cu History/Alternatives? Larry McVoy
2022-12-12 2:15 ` [TUHS] Clever code (was " Bakul Shah
2022-12-12 9:48 ` [TUHS] Re: Clever code Michael Kjörling
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