kern/163076: It is not possible to read in chunks from linprocfs and procfs.

[Poul-Henning Kamp]

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,
        des at FreeBSD.org, mdf at FreeBSD.org
Subject: Re: kern/163076: It is not possible to read in chunks from linprocfs and procfs.
Date: Sun, 11 Dec 2011 13:41:03 +0000

 In message <20111211102608.GA2266 at a91-153-116-96.elisa-laajakaista.fi>, Jaakko 
 Heinonen writes:
 >On 2011-12-10, Poul-Henning Kamp wrote:
 
 >One problem is the different malloc() semantics. The kernel version uses
 >M_WAITOK allocations while user space malloc(3) can fail.
 
 Yes, that's Dag-Erlings and my point:  The semantics are too different.
 
 >Only 21 of 133 calls I grepped through the FreeBSD source tree did check
 >the return value [of sbuf_finish()]
 
 How many of them checked sbuf_error() instead ?
 
 And seriously: how long would it take to fix 112 calls ?
 
 -- 
 Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
 phk at FreeBSD.ORG         | TCP/IP since RFC 956
 FreeBSD committer       | BSD since 4.3-tahoe    
 Never attribute to malice what can adequately be explained by incompetence.