From: "Karol Swietlicki" <magotari@gmail.com>
To: Peter Teoh <htmldeveloper@gmail.com>
Cc: uml-devel <user-mode-linux-devel@lists.sourceforge.net>
Subject: Re: [uml-devel] query on STDERR output from UML tracing
Date: Wed, 12 Nov 2008 22:44:24 -0800 [thread overview]
Message-ID: <ea9232d10811122244w52c90a48r81a7e0210c84df94@mail.gmail.com> (raw)
In-Reply-To: <804dabb00811122239l352dbb5dta63dc3330b92bf5a@mail.gmail.com>
On 12/11/2008, Peter Teoh <htmldeveloper@gmail.com> wrote:
> As I used gdb to trace UML execution, only three lines were output to
> STDERR:
>
> - /proc/mm...not found: No such file or directory
> - PTRACE_FAULTINFO...not found
> - PTRACE_LDT...not found
>
> What are these? How to turn them on? What is the implication of
> not having these features?
Those lines mean that you do not have SKAS3/4 patches in your kernel.
They are not essential for UML, but having them can give you a
performance boost.
Karol Swietlicki
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prev parent reply other threads:[~2008-11-13 6:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-13 6:39 [uml-devel] query on STDERR output from UML tracing Peter Teoh
2008-11-13 6:44 ` Karol Swietlicki [this message]
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