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From: Florian Weimer <fweimer@redhat.com>
To: Florian Fainelli via Libc-help <libc-help@sourceware.org>
Cc: Justin Chen <justinpopo6@gmail.com>,  Florian Fainelli
 <f.fainelli@gmail.com>
Subject: Re: Glibc pthread_rwlock_timed*() Optimization Bug
References: <CAJx26kU_T=uam6uZOcHJ9_a-G2onePtHCU9q2F2g0OhoJzR51w@mail.gmail.com>
 <00d50647-d99f-8296-03a1-c9ebc24fbdf3@gmail.com>
Date: Wed, 08 Sep 2021 08:14:29 +0200
In-Reply-To: <00d50647-d99f-8296-03a1-c9ebc24fbdf3@gmail.com> (Florian
 Fainelli via Libc-help's message of "Tue, 7 Sep 2021 14:33:57 -0700")
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* Florian Fainelli via Libc-help:

> On 9/7/2021 2:31 PM, Justin Chen wrote:
>> Hello all,
>> We are seeing a faulty compiler optimization with
>> pthread_rwlock_timed*() when cross-compiling glibc for arm. This is
>> leading to deadlocks with some of our software.
>
> FWIW, this was previously reported, along with a reproducer here:
>
> https://sourceware.org/bugzilla/show_bug.cgi?id=24774
>
> the comment about not triggering bug 24774 does not seem to related to
> that bug, was it a typo?

Yes, it was a typo.

Thanks,
Florian