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From: Max Laier <max@love2party.net>
To: "Christian S.J. Peron" <csjp@freebsd.org>
Date: Sat, 25 Sep 2004 00:55:55 +0200
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Subject: Re: fixes for ipfw and pf lock ordering issues
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On Saturday 25 September 2004 00:37, Christian S.J. Peron wrote:
> Good day folks, we need some beta testers
>
> Currently, those who utilize ucred based firewalling, i.e. firewall
> rules which match based on UID, GID or JAIL ID are subject to lock order
> problems which often results in the system hard locking. (when giant
> is not present ... debug.mpsafenet=3D1).
>
> This problem affects all FreeBSD firewalls which implement ucred based
> matching, namely ipfw and pf. The lock order problem exists due to a
> layering violation which occurs when the IP stack attempts to acquire
> locks within lower level stacks such as UDP and TCP.

=46or the record [just realized that we forgot]: Talking about LOR id 14-17=
 ...

=2D-=20
/"\  Best regards,                      | mlaier@freebsd.org
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