From: Dave Horsfall <dave@horsfall.org>
To: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] reboot(2) system call
Date: Tue, 28 Jul 2020 14:06:32 +1000 (EST) [thread overview]
Message-ID: <alpine.BSF.2.21.9999.2007281403170.76447@aneurin.horsfall.org> (raw)
In-Reply-To: <CANCZdfosFGpBKw0wOx9nYgAWpeVNuRd-h6Nu5PLgZyyCuezZKA@mail.gmail.com>
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On Mon, 27 Jul 2020, Warner Losh wrote:
> I've done some research for a friend about when the reboot() system call
> was added, and how it related to the sync, sync, sync dance.
> https://bsdimp.blogspot.com/2020/07/when-unix-learned-to-reboot2.html
>
> may be of interest. Please do let me know if I've gotten
> something wrong...
Seems OK to me; I was taught never to use "sync; sync; sync" for precisely
those reasons (the buffers may not have time to flush etc, as "sync"
merely schedules the I/O, not cause it.
-- Dave
next prev parent reply other threads:[~2020-07-28 4:08 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-27 18:57 Warner Losh
2020-07-28 0:36 ` Clem Cole
2020-07-28 4:06 ` Dave Horsfall [this message]
2020-07-28 16:35 ` Win Treese
2020-07-28 13:11 ` Jaap Akkerhuis
2021-01-27 6:01 ` Greg A. Woods
2021-01-30 22:27 ` Dave Horsfall
2021-01-30 22:31 ` Larry McVoy
2021-01-30 22:37 ` Warner Losh
2021-02-02 2:20 ` Greg A. Woods
2021-02-02 2:30 ` Warner Losh
2021-02-02 20:30 ` Greg A. Woods
2021-02-02 3:35 ` Dave Horsfall
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