Re: IA32 syscall 311 not implemented on x86_64

From: Denis Vlasenko
Date: Tue May 23 2006 - 10:34:36 EST

On Monday 22 May 2006 01:37, Andi Kleen wrote:
> On Monday 22 May 2006 00:28, Dave Jones wrote:
> > On Mon, May 22, 2006 at 12:19:08AM +0200, Andi Kleen wrote:
> >
> > > > > You make a good point. In fact, given it's unthrottled, someone
> > > > > with too much time on their hands could easily fill up a /var
> > > > > just by calling unimplemented syscalls this way.
> > >
> > > I never bought this argument because there are tons of printks in the kernel
> > > that can be triggered by everybody.
> >
> > Then they should also be either rate limited, or removed.
> Yes let's remove all that kernel debugging support. It is totally useless
> for most users, isn't it?
> Even if they are ratelimit you can still fill up /var.

If one has syslogd which does not rotate logs, [s]he gets what [s]he deserves.

There are two desirable properties of logs:
(a) do not lose information (i.e. save entire log)
(b) do not overflow log storage
and they are simply incompatible. You must pick one.

I took (b) and am a very happy user of daemontools' multilog ever since.
I never need to manually manage my logs again...
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