Date: Thu, 7 Aug 2003 21:39:35 +0300 From: Ruslan Ermilov <ru@freebsd.org> To: Stephen McKay <smckay@internode.on.net> Cc: freebsd-stable@freebsd.org Subject: Re: nvi dying with "Resource temporarily unavailable" Message-ID: <20030807183935.GA45191@sunbay.com> In-Reply-To: <200308071308.h77D8Ogj003736@dungeon.home> References: <200308071230.h77CUMgj003099@dungeon.home> <20030807123242.GB5904@sunbay.com> <200308071308.h77D8Ogj003736@dungeon.home>
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--UlVJffcvxoiEqYs2 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Aug 07, 2003 at 11:08:24PM +1000, Stephen McKay wrote: > On Thursday, 7th August 2003, Ruslan Ermilov wrote: >=20 > >On Thu, Aug 07, 2003 at 10:30:22PM +1000, Stephen McKay wrote: > >> Since I upgraded to FreeBSD 4.8 (from 4.5) I've noticed occasional fai= lures > >> of nvi. It will suddenly die as a key is pressed, emitting: > >> > >> Error: input: Resource temporarily unavailable > >> > >> and you are staring at your command prompt. >=20 > >> Any ideas? >=20 > >stty sane >=20 > Eh? Which tty flag (out of the many affected by stty sane) do you believe > causes my problem? Why would my pty be "insane" in the first place? > Should nvi be defensive and handle this case? >=20 Hm, I cannot reproduce it "normally" now, but I recall seeing something like this. The problem is easily reproducible using this small program: : #include <fcntl.h> :=20 : int : main(void) : { : (void) fcntl(0, F_SETFL, O_NONBLOCK); : return (0); : } Assuming that it's called ./a.out, this works like this: : $ ./a.out ; vi : Error: input: Resource temporarily unavailable : sh: turning off NDELAY mode : $=20 Cheers, --=20 Ruslan Ermilov Sysadmin and DBA, ru@sunbay.com Sunbay Software Ltd, ru@FreeBSD.org FreeBSD committer --UlVJffcvxoiEqYs2 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (FreeBSD) iD8DBQE/MpznUkv4P6juNwoRAhXtAJ9FIbr06t8SIYtvv1ODL6PJL5YR5gCggFUo tUXG3xjjRKz7nrIjAGqxx0A= =h+AV -----END PGP SIGNATURE----- --UlVJffcvxoiEqYs2--
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