threads/126950: rtld malloc is thread-unsafe

Alexander Kabaev kabaev at gmail.com
Fri Aug 29 18:40:03 UTC 2008


The following reply was made to PR threads/126950; it has been noted by GNATS.

From: Alexander Kabaev <kabaev at gmail.com>
To: Oleg Dolgov <agile at sunbay.com>
Cc: freebsd-gnats-submit at FreeBSD.org
Subject: Re: threads/126950: rtld malloc is thread-unsafe
Date: Fri, 29 Aug 2008 14:05:27 -0400

 --Sig_/8E=R.f2Foc5pJTzysvE4Zu4
 Content-Type: text/plain; charset=US-ASCII
 Content-Transfer-Encoding: quoted-printable
 
 1. The locking implementation in this patch is broken.
 2. rtld malloc is not supposed to be called from multiple threads and
 needs to be protected by exclusive bind lock. If there are code
 sections that call malloc without exclusive lock held, rtld
 should be fixed to move them under lock protection.
 
 --=20
 Alexander Kabaev
 
 --Sig_/8E=R.f2Foc5pJTzysvE4Zu4
 Content-Type: application/pgp-signature; name=signature.asc
 Content-Disposition: attachment; filename=signature.asc
 
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.9 (FreeBSD)
 
 iD8DBQFIuDpnQ6z1jMm+XZYRAt3lAJ47sMx7yg5cbYu+6lgwiYBuqBFVxQCgtiab
 ygqiHe8ciE/t+8IzQTvc4bI=
 =U3O0
 -----END PGP SIGNATURE-----
 
 --Sig_/8E=R.f2Foc5pJTzysvE4Zu4--


More information about the freebsd-threads mailing list