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Subject: Re: svn commit: r310025 - head/libexec/rtld-elf
From: Dominic Fandrey <kamikaze@bsdforen.de>
To: Bryan Drewery <bdrewery@FreeBSD.org>, src-committers@freebsd.org, 
 svn-src-all@freebsd.org, svn-src-head@freebsd.org
Date: Tue, 10 Jan 2017 14:58:40 +0100
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On Tue, 2016-12-13 at 18:05 +0000, Bryan Drewery wrote:
> Author: bdrewery
> Date: Tue Dec 13 18:05:14 2016
> New Revision: 310025
> URL: https://svnweb.freebsd.org/changeset/base/310025
> 
> Log:
>   Take write lock for rtld_bind before modifying obj_list in dl_iterate_phdr().

This commit causes a regression in C++, where an exception
smashes the sigprocmask, causing all signal handling to fail.

See: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215826

Look at #2 for a demonstration.


Regards
kami

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