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Add release TODO item for multicast crash being experienced by several

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users, especially when running routed with vlans.  A regression test
has recently been committed, so this is a WIP.

PR:           77665
Reported by:  Gavin Atkinson <gavin dot atkinson at ury dot york dot ac dot uk>
Reported by:  Brooks Davis <brooks at FreeBSD dot org>
This commit is contained in:
Robert Watson 2005-09-05 13:35:30 +00:00
parent 4ba31c99d4
commit 2efd7f2cfa
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/www/; revision=25561
1 changed files with 17 additions and 1 deletions
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18
en/releases/6.0R/todo.sgml
View file

@ -1,7 +1,7 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" [
<!ENTITY base CDATA "../..">
<!ENTITY email 'freebsd-qa'>
<!ENTITY date "$FreeBSD: www/en/releases/6.0R/todo.sgml,v 1.28 2005/08/24 03:13:30 rwatson Exp $">
<!ENTITY date "$FreeBSD: www/en/releases/6.0R/todo.sgml,v 1.29 2005/08/29 17:50:19 murray Exp $">
<!ENTITY title "FreeBSD 6.0 Open Issues">
<!ENTITY % includes SYSTEM "../../includes.sgml"> %includes;
<!ENTITY % developers SYSTEM "../../developers.sgml"> %developers;
@ -100,6 +100,22 @@
<td>Found by stress tests at <a href="http://www.holm.cc/stress/log/cons138.html">http://www.holm.cc/stress/log/cons138.html</a>.</td>
</tr>
<tr>
<td>panic on multicast socket close after interface removal</td>
<td>&status.wip;</td>
<td>&a.rwatson;</td>
<td>Due to the addition of multicast locking, a long-present memory
corruption bug now generates an immediate panic if an interface is
removed while a multicast group is in use on the interface. This
can manifest if running routed and using vlans. A regression test
has now been committed as msocket_ifnet_remove. A short-term fix
will be to GC references to the interface in the IPv4/IPv6
multicast socket options hung off of the inpcb; a long term solution
will require determining the correct application semantics for
interface removal as relates to multicast sockets. This problem is
described in detail in PR kern/77665.</td>
</tr>
</table>
<h3>Required features for 6.0-RELEASE</h3>