Date: Tue, 19 Jan 1999 22:01:56 +0000 From: Brian Somers <brian@Awfulhak.org> To: Brian Somers <brian@Awfulhak.org> Cc: current@FreeBSD.ORG Subject: Re: Incorrect EAGAIN & select() exceptions Message-ID: <199901192201.WAA16620@keep.lan.Awfulhak.org> In-Reply-To: Your message of "Sun, 10 Jan 1999 13:58:25 GMT." <199901101358.NAA00734@keep.lan.Awfulhak.org>
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Just in case anyone's been losing sleep over this, it was pilot error!
bde@ pointed out the problem, and cron confirmed it :-/
> Hi,
>
> Something weird is happening in -current. I installed world, a
> kernel and bootblocks on Jan 6 - I can't say for sure that it wasn't
> happening before this as I usually do all ppp testing via the
> loopback interface on a single machine for convenience.
>
> Yesterday, I tried using ppp on the above -current via a tty and got
> two weird results, both happen at random intervals, but are
> reasonably easy to reproduce.
>
> 1. I select() on a tty descriptor for reading (and writing &
> exceptions). Select comes back with the read descriptor set,
> I do a read() and get -1 with errno EAGAIN. This must be
> wrong !
>
> 2. I select() on a tty descriptor for reading, writing and
> exceptions and get the exception fd_set bit set. This has never
> happened before, and it was only a few weeks ago that I even had
> ppp not always abend when an exception is detected.
>
> Does anybody know what's going on (before I look into things further) ?
> Help would be appreciated if anyone has any su{spicions,gestions}.
>
> Cheers.
> --
> Brian <brian@Awfulhak.org> <brian@FreeBSD.org> <brian@OpenBSD.org>
> <http://www.Awfulhak.org>;
> Don't _EVER_ lose your sense of humour !
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