linux-kernel - handle_futex_death() infinite loop on ARM (fwd)

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Message-ID: <20070704102318.GA18634@xi.wantstofly.org>
Date:	Wed, 4 Jul 2007 12:23:18 +0200
From:	Lennert Buytenhek <buytenh@...tstofly.org>
To:	tglx@...utronix.de, mingo@...hat.com
Cc:	linux-kernel@...r.kernel.org, linux@....linux.org.uk
Subject: handle_futex_death() infinite loop on ARM (fwd)

----- Forwarded message from Lennert Buytenhek <buytenh@...tstofly.org> -----

Date: Wed, 13 Jun 2007 20:40:40 +0200
From: Lennert Buytenhek <buytenh@...tstofly.org>
To: linux-arm-kernel@...ts.arm.linux.org.uk
Subject: handle_futex_death() infinite loop
User-Agent: Mutt/1.4.1i

Hi,

If you're also running into glibc's tst-robust1 test suite test
locking up your ARM machine, you're probably running into the fact
that asm-arm/futex.h includes asm-generic/futex.h, and
asm-generic/futex.h defines futex_atomic_cmpxchg_inatomic() to
return -ENOSYS.  This causes handle_futex_death() to loop forever.


cheers,
Lennert

----- End forwarded message -----
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