From: David Daney <ddaney.cavm@gmail.com>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Oleg Nesterov <oleg@redhat.com>, Anton Arapov <anton@redhat.com>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
linux-kernel@vger.kernel.org, linux-mips@linux-mips.org
Subject: Re: [PATCH] UPROBES: Remove useless __weak attribute
Date: Fri, 11 Oct 2013 15:06:57 -0700 [thread overview]
Message-ID: <52587681.8090703@gmail.com> (raw)
In-Reply-To: <20131011122407.GO1615@linux-mips.org>
On 10/11/2013 05:24 AM, Ralf Baechle wrote:
> On Fri, Oct 11, 2013 at 06:21:28AM +0530, Srikar Dronamraju wrote:
>
>> Will be nice to have another arch(mips) support for uprobes.
>
> It's basically ready to be merged - but it's triggering issues elsewhere
> in the kernel which I have to resolve first.
>
> The short version is that the memory special mapping created by uprobe
> with VM_EXEC but not VM_READ permissions is not working but it's working
> if I add VM_READ. That should not be necessary so something deep down
> in the guts of arch/mips is wrong.
>
Weird, I have a testcase that explicitly tests VM_EXEC and !VM_READ that
works.
Do you have more information about the failure, I can look at it in the
simulator and see where it goes wrong.
Thanks,
David Daney
prev parent reply other threads:[~2013-10-11 22:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-09 12:08 [PATCH] UPROBES: Remove useless __weak attribute Ralf Baechle
2013-10-10 11:43 ` Oleg Nesterov
2013-10-11 0:51 ` Srikar Dronamraju
2013-10-11 12:24 ` Ralf Baechle
2013-10-11 22:06 ` David Daney [this message]
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