Re: [Xen-devel] [PATCH QEMU for-4.7] main loop: Big hammer to fix logfile disk DoS in Xen setups

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, May 26, 2016 at 04:36:57PM +0100, George Dunlap wrote:
> On Thu, May 26, 2016 at 4:21 PM, Wei Liu <wei.liu2@xxxxxxxxxx> wrote:
> > From: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> >
> > Each time round the main loop, we now fstat stderr.  If it is too big,
> > we dup2 /dev/null onto it.  This is not a very pretty patch but it is
> > very simple, easy to see that it's correct, and has a low risk of
> > collateral damage.
> >
> > The limit is 1Mby by default but can be adjusted by setting a new
> > environment variable.
> 
> There is no limit by default; a companion patch for libxl sets this to
> 1MiB.  This is so that this patch may be applied on a system qemu
> which is shared between multiple use cases (including non-Xen cases).
> 

I added a paragraph in that patch and have my S-o-B.

Did you miss that? Or do you mean I should rewrite the commit message
altogether?

Wei.

>  -George

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