kern/163076: It is not possible to read in chunks from
linprocfs and procfs.
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Dec 5 17:00:36 UTC 2011
The following reply was made to PR kern/163076; it has been noted by GNATS.
From: "Poul-Henning Kamp" <phk at phk.freebsd.dk>
To: Jaakko Heinonen <jh at FreeBSD.org>
Cc: Petr Salinger <Petr.Salinger at seznam.cz>, bug-followup at FreeBSD.org
Subject: Re: kern/163076: It is not possible to read in chunks from linprocfs and procfs.
Date: Mon, 05 Dec 2011 16:38:35 +0000
In message <20111205144947.GA2267 at a91-153-116-96.elisa-laajakaista.fi>, Jaakko
Heinonen writes:
>Yes, r222004 changed sbuf_finish() to not clear s->s_error which causes
>the regression. I am not sure if we should blame r222004 or the pseudofs
>code.
The sbuf code is correct.
Sbufs were designed to have "latching error semantics" and any errors
should not be cleared by sbuf_finish() for exactly that reason.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
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Never attribute to malice what can adequately be explained by incompetence.
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