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From: Florian Weimer <fweimer@redhat.com>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: Florian Weimer via Libc-alpha <libc-alpha@sourceware.org>,  Szabolcs
 Nagy <szabolcs.nagy@arm.com>,  Tulio Magno Quites Machado Filho
 <tuliom@linux.vnet.ibm.com>
Subject: Re: [PATCH] elf: Fix fences in _dl_find_object_update (bug 28745)
References: <87tueie1lf.fsf@oldenburg.str.redhat.com>
 <87pmp62sgr.fsf@igel.home>
Date: Wed, 05 Jan 2022 15:03:57 +0100
In-Reply-To: <87pmp62sgr.fsf@igel.home> (Andreas Schwab's message of "Wed, 05
 Jan 2022 15:00:04 +0100")
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* Andreas Schwab:

> On Jan 05 2022, Florian Weimer via Libc-alpha wrote:
>
>> As explained in Hans Boehm, Can Seqlocks Get Along with Programming
>> Language Memory Models?, an acquire fence is needed in
>> _dlfo_read_success.  The lack of a fence was
>
> This sentence is

I meant to write:

    As explained in Hans Boehm, Can Seqlocks Get Along with Programming
    Language Memory Models?, an acquire fence is needed in
    _dlfo_read_success.  The lack of a fence resulted in an observable
    bug on powerpc64le compile-time load reordering.

Thanks,
Florian