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Date: Fri, 8 Jan 2016 19:37:37 -0800
From: Gleb Smirnoff <glebius@FreeBSD.org>
To: Adrian Chadd <adrian.chadd@gmail.com>
Cc: Chagin Dmitry <dchagin@freebsd.org>, FreeBSD Net <freebsd-net@freebsd.org>
Subject: Re: long network segment call stack can fail
Message-ID: <20160109033737.GN1906@FreeBSD.org>
References: <20160106180008.GA1363@chd.heemeyer.club>
 <CAJ-Vmon_Va3SqUoSurju3_Wu2cV9pL55o9ENAksPwtkiNSUWyw@mail.gmail.com>
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On Wed, Jan 06, 2016 at 12:50:52PM -0800, Adrian Chadd wrote:
A> hah, that's very pretty. The downside of a completely direct-dispatch
A> network stack. :)

The stack is big, but shouldn't eat 4 pages anyway. Back in the netgraph
hacking times, we used to have stack exhaustion with much longer backtraces.

I expect that somewhere on the list there something huge on stack. 

I assume Dmitry runs with -O0, this is compile that exposes stack
exhaustion first. Did I guess it right, Dmitry?


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