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Subject: Re: passing NULL to clock_getres (VDSO): terminated by unexpected
 signal 11
To: Andreas Schwab <schwab@linux-m68k.org>
References: <0fc22a08-31d9-e4d1-557e-bf5b482a9a20__6444.28012180782$1571503753$gmane$org@c-s.fr>
 <87v9skcznp.fsf@igel.home>
From: Christophe Leroy <christophe.leroy@c-s.fr>
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Date: Sun, 20 Oct 2019 11:20:00 +0200
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Cc: Nathan Lynch <nathanl@linux.ibm.com>,
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Le 19/10/2019 à 21:18, Andreas Schwab a écrit :
> On Okt 19 2019, Christophe Leroy <christophe.leroy@c-s.fr> wrote:
> 
>> Hi Nathan,
>>
>> While trying to switch powerpc VDSO to C version of gettimeofday(), I'm
>> getting the following kind of error with vdsotest:
>>
>> passing NULL to clock_getres (VDSO): terminated by unexpected signal 11
>>
>> Looking at commit a9446a906f52 ("lib/vdso/32: Remove inconsistent NULL
>> pointer checks"), it seems that signal 11 is expected when passing NULL
>> pointer.
>>
>> Any plan to fix vdsotest ?
> 
> Passing NULL to clock_getres is valid, and required to return
> successfully if the clock id is valid.
> 

Do you mean the following commit is wrong ?

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/lib/vdso?id=a9446a906f52292c52ecbd5be78eaa4d8395756c

Christophe