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From: Florian Weimer <fweimer@redhat.com>
To: Szabolcs Nagy via Libc-alpha <libc-alpha@sourceware.org>
Cc: Paul Zimmermann <Paul.Zimmermann@inria.fr>,  Szabolcs Nagy
 <szabolcs.nagy@arm.com>
Subject: Re: glibc 2.34
References: <mwh7g85j7t.fsf@tomate.loria.fr> <20210802111645.GG14854@arm.com>
Date: Mon, 02 Aug 2021 13:52:37 +0200
In-Reply-To: <20210802111645.GG14854@arm.com> (Szabolcs Nagy via Libc-alpha's
 message of "Mon, 2 Aug 2021 12:16:46 +0100")
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* Szabolcs Nagy via Libc-alpha:

> The 08/02/2021 10:44, Paul Zimmermann wrote:
>> I just compiled GNU libc 2.34 on my workstation (Intel Core i5 under
>> Debian GNU/Linux 11 bullseye with gcc 10.2.1) and got 3 errors with
>> make check:
>> 
>> Summary of test results:
>>       3 FAIL
>>    4439 PASS
>>      20 UNSUPPORTED
>>      16 XFAIL
>>       2 XPASS
>> 
>> FAIL: io/tst-closefrom
>> FAIL: misc/tst-close_range
>> FAIL: posix/tst-spawn5
>> 
>> $ cat io/tst-closefrom.out
>> tst-closefrom.c:38: numeric comparison failure
>>    left: 95 (0x5f); from: xopen ("/dev/null", O_RDONLY, 0600)
>>   right: 93 (0x5d); from: lowfd + i
>
> i see similar failure when the shell where i run
> the tests has inherited fds open (e.g. in this
> case fd 93 and 94)

Right, we saw that internally as well.  I think we need a support/
utility that returns the maximum open file descriptor, plus 1, and
raises RLIMIT_NOFILE if necessary.

Thanks,
Florian