ipfw pipe show yields "REDZONE: Buffer overflow detected..."

David Wolfskill david at catwhisker.org
Wed Dec 20 11:46:57 UTC 2017


On Wed, Dec 20, 2017 at 02:13:46PM +0300, Andrey V. Elsukov wrote:
> On 19.12.2017 16:17, David Wolfskill wrote:
> > Similarly; "ipfw sched show" yields:
> > Dec 19 13:08:54 g1-252 kernel: REDZONE: Buffer overflow detected. 16 bytes corrupted after 0xfffff80232e73748 (328 bytes allocated).
> ...
> > Yesterday was the first full day of running the laptop with FQ-CoDel
> > implemented, and I noticed that in the evening, things (such as
> > echoing charcaters in an xterm) would "pause" for a second or two,
> > fairly randomly.  I can't say that the above were associated with the
> > pauses, but they are associated with the commands -- this is trivially
> > reproducible (for me, anyway).
> 
> It would be nice if you created PR where you described steps to
> reproduce this. Your kernel/modules config, commands you used to get
> this result.
> 
> -- 
> WBR, Andrey V. Elsukov
> 

Will do, once I finish the daily update (currently in progress, so
running a Web browser isn't an ideal activity at the moment).

I thought it worth a reality-check before PR-generation. :-)

Peace,
david
-- 
David H. Wolfskill				david at catwhisker.org
Given his track record so far, I presume that assertions from Trump are lies.

See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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