From: Christoph Rohland <cr@sap.com>
To: "Juan J. Quintela" <quintela@fi.udc.es>
Cc: linux-kernel@vger.rutgers.edu, linux-mm@kvack.org
Subject: Re: PATCH: SHM Bug in Highmem machines
Date: 10 May 2000 13:17:28 +0200 [thread overview]
Message-ID: <qwwr9balkmv.fsf@sap.com> (raw)
In-Reply-To: "Juan J. Quintela"'s message of "10 May 2000 04:14:30 +0200"
Hi juan,
"Juan J. Quintela" <quintela@fi.udc.es> writes:
> I think that SHM can't work in recent kernels, due to the fact
> that We call prepare_highmem_swapout without locking the page (that is
> necesary with the new semantics). If we don't do that change, the
> page returned by prepare_highmem_swapout will be already
> locked and our call to lock will sleep forever.
>
> Later, Juan.
>
> PD. Christoph, could you see if that helps your problems (you are the only
> person that I know that use highmem & shm).
Yes, your patch fixes the lockup.
Thanks
Christoph
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prev parent reply other threads:[~2000-05-10 11:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-05-10 2:14 Juan J. Quintela
2000-05-10 11:17 ` Christoph Rohland [this message]
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