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Message-ID: <55D3626E.4080107@gmail.com>
Date: Tue, 18 Aug 2015 18:50:54 +0200
From: Tastky <tastky@...il.com>
To: Rich Felker <dalias@...c.org>
Cc: musl@...ts.openwall.com
Subject: Re: nfs-utils broken with musl: "select: Bad file descriptor"
Just checked with said include and everything recompiled. Unfortunately
the same error persists.
Running OpenWrt's command
/usr/sbin/rpc.statd -p 32778 -o 32779 -F
manually (following the script's prior steps, ofc) results in a loop of:
sm-notify: Version 1.3.2 starting
sm-notify: Already notifying clients; Exiting
With strace: http://pastebin.com/raw.php?i=9ypUbmsp
On 18.08.2015 05:00, Rich Felker wrote:
> On Tue, Aug 18, 2015 at 04:30:21AM +0200, Tastky wrote:
>> As by this OpenWRT bugreport:
>> https://dev.openwrt.org/ticket/20038
>>
>> On various architectures – at least a mips and powerpc one –
>> nfs-utils is broken with musl, yielding a never ending stream of
>> "my_svc_run() - select: Bad file descriptor" in the system log.
>>
>> The message originates in the this file:
>> http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=blob;f=utils/statd/svc_run.c
>>
>> "Downgrading" to uClibc has the issue vanish.
>>
>> I verified this myself with recent git versions of both musl and the
>> utils on a fresh ar71xx OpenWRT compilation.
>
> Here's my quick guess at what's going wrong. This file:
>
> http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=blob;f=utils/statd/system.h;h=a1739c491474179c16a64f7a2bbfde8f651085c6;hb=HEAD
>
> contains nonsense to define SVC_FDSET as int rather than using fd_set
> on "systems which don't have fd_set" (which don't exist).
> Unfortunately, it's checking #ifdef FD_SETSIZE without including the
> header that defines it, sys/select.h. If this is the problem, adding:
>
> #include <sys/select.h>
>
> to the top of that file should fix the error.
>
> Note that compiling with -Werror=implicit-function-declaration would
> catch such bogus code right away.
>
> If this turns out not to be the problem, can you send an strace of the
> failing program up to the first failure message?
>
> Rich
>
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