SVN commit 259045 breaks -CURRENT
Steve Kargl
sgk at troutmask.apl.washington.edu
Sat Dec 14 21:59:10 UTC 2013
On Sat, Dec 14, 2013 at 10:44:10PM +0100, Stefan Esser wrote:
> I noticed a severe slowdown and network problems on my amd64 -CURRENT
> system. By bisecting SVN revisions I identified the following commit
> to be responsible:
>
> ----------------------------------------------------------------------
> r259045 | kib | 2013-12-06 22:44:13 +0100 (Fri, 06 Dec 2013) | 9 lines
>
> Disallow optimizations which potentially remove boundary checks
> for signed values due to a compiler authors considering integer
> overflow as impossible.
>
> The change follows suit of other projects taking the same measure.
> ----------------------------------------------------------------------
>
> This commit added the following line to /sys/conf/kern.mk:
>
> CFLAGS+= -fno-strict-overflow
>
>
> The most obvious symptoms of the problem on my system are:
>
> 1) sa-spamd needs > 140 seconds to start
> (instead of a few seconds)
>
> 2) SSH logins are very slow, many seconds of delay between connect
> and password prompt, several seconds after password entry until
> a command prompt appears (normally instantaneous)
>
Ah, so that explains the behavior I'm see. Just updated a circa Aug 3rd
i386 FreeBSD to top-of-tree. My ssh logins to my work system take 30+
seconds now. :(
--
steve
--
Steve
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