Big update for the todo list.
This commit is contained in:
Scott Long
parent
eda0420fe2
commit
799d4e39eb
Notes:
svn2git
2020-12-08 03:00:23 +00:00
svn path=/www/; revision=22618
1 changed files with 71 additions and 73 deletions
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@ -1,7 +1,7 @@
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" [
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<!ENTITY base CDATA "../..">
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<!ENTITY email 'freebsd-qa'>
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<!ENTITY date "$FreeBSD: www/en/releases/5.3R/todo.sgml,v 1.98 2004/10/15 08:42:26 rwatson Exp $">
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<!ENTITY date "$FreeBSD: www/en/releases/5.3R/todo.sgml,v 1.99 2004/10/15 08:44:43 rwatson Exp $">
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<!ENTITY title "FreeBSD 5.3 Open Issues">
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<!ENTITY % includes SYSTEM "../../includes.sgml"> %includes;
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<!ENTITY % developers SYSTEM "../../developers.sgml"> %developers;
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@ -43,58 +43,16 @@
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</tr>
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<tr>
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<td>ether_input() may harvest entropy from free()'d mbuf</td>
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<td>if_em wedge</td>
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<td>&status.wip;</td>
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<td>&a.markm;, &a.rwatson;</td>
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<td>ether_input() calls random_harvest() on the mbuf after it has been
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handed off to ether_demux(), at which point it may have been free()'d
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back to the mbuf allocator. It also passes in a pointer to the mbuf
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itself, rather than ethernet frame header. Passing of a potentially
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free'd mbuf has been corrected in 6.x, but not yet merged to 5.x.</td>
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</tr>
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</table>
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<h3>Required features for 5.3-RELEASE</h3>
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<table border=1 width="100%">
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<tr><th>Issue</th><th>Status</th><th>Responsible</th><th>Description</th></tr>
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<tr>
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<td>GDB thread support</td>
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<td>&status.wip;</td>
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<td>&a.davidxu;, &a.marcel;</td>
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<td>With improved support for threading primitives, support is now
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required to ease debugging of threaded applications. Ideally,
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this support will work for both libthr and libkse threading
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models.</td>
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</tr>
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<tr>
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<td>Entropy harvesting optimizations</td>
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<td>&status.wip;</td>
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<td>&a.rwatson;, &a.markm;</td>
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<td>Entropy harvesting in the interrupt and incoming packet paths
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currently involves a large number of mutex operations. In order to
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improve performance, it is desirable to reduce the number of mutex
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operations substantially. Improvements in the harvesting locking
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scheme have been merged to 6.x, but are considered too risky at this
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stage to be merged to 5.x until after 5.3.</td>
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<tr>
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<td>Reports of tcp_output() spinning; socket buffer corruption</td>
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<td>&status.untested;</td>
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<td>&a.rwatson;</td>
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<td>There have been reports of occasional corruption of socket buffers
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and/or spinning in tcp_output(). This may have been the result of
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missing socket buffer locking in tcp_output(), which has now been
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corrected in 6.x and 5.x; the release engineering team is awaiting
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word as to whether this fixes the problems experienced by the
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submitter.</td>
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<td>&a.bms;</td>
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<td>More problems have been reported with the if_em driver. These appear
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to also be related to the ALTQ code.</td>
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</tr>
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<tr>
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<td>Reports of sodealloc() panic under heavy load</td>
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<td>&status.untested;</td>
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<td>&status.wip;</td>
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<td>&a.rwatson;, &a.green;</td>
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<td>There have been reports of a so_count invariant violation in
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sofree(), which may relate to race conditions in sofree() against
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@ -104,33 +62,12 @@
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high load environments, and has not yet been reproduced by the
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FreeBSD release engineering team in testing.</td>
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</tr>
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</table>
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<tr>
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<td>Problems with multicast and setuid binaries/daemons</td>
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<td>&status.untested;</td>
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<td>&a.rwatson;, &a.csjp;</td>
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<td>There have been reports that multicast socket options on raw sockets
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no longer work properly with daemons changing privilege or setuid
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binaries. These symptoms have been tracked down to bugs relating to
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permitting limited use of raw sockets in jail(). A patch correcting
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these problems has been merged to 6.x and 5.x. The Release
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Engineering team awaits news that this corrects the problems reported
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by the submitter.</td>
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</tr>
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<h3>Required features for 5.3-RELEASE</h3>
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<tr>
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<td>Reports of hangs using i4b (isdn4bsd)</td>
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<td>&status.untested;</td>
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<td>&a.rwatson;</td>
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<td>There have been reports of system hangs while using ISDN with the
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i4b ISDN framework on SMP systems. These likely result from
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insufficient synchronization in the i4b implementation when runnning
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without the Giant lock over the network stack. The workaround until
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this is fixed is to re-assert the Giant lock over the stack when
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i4b is compiled into the kernel; this has been committed to 6.x and
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and 5.x. The Release Engineering team awaits word that this corrects
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the problems experienced by the submitter.</td>
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</tr>
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<table border=1 width="100%">
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<tr><th>Issue</th><th>Status</th><th>Responsible</th><th>Description</th></tr>
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<tr>
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<td>Reports of poor performance of the if_de driver (de ethernet
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@ -151,6 +88,28 @@
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<tr><th>Issue</th><th>Status</th><th>Responsible</th><th>Description</th>
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</tr>
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<tr>
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<td>Entropy harvesting optimizations</td>
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<td>&status.wip;</td>
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<td>&a.rwatson;, &a.markm;</td>
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<td>Entropy harvesting in the interrupt and incoming packet paths
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currently involves a large number of mutex operations. In order to
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improve performance, it is desirable to reduce the number of mutex
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operations substantially. Improvements in the harvesting locking
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scheme have been merged to 6.x, but are considered too risky at this
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stage to be merged to 5.x until after 5.3.
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</td>
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<tr>
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<td>GDB thread support</td>
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<td>&status.wip;</td>
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<td>&a.davidxu;, &a.marcel;</td>
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<td>With improved support for threading primitives, support is now
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required to ease debugging of threaded applications. Ideally,
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this support will work for both libthr and libkse threading
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models.</td>
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</tr>
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<tr>
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<td>KSE support for sparc64</td>
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<td>&status.wip;</td>
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@ -645,6 +604,45 @@
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sent to the KAME team for review.</td>
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</tr>
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<tr>
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<td>Reports of tcp_output() spinning; socket buffer corruption</td>
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<td>&status.untested;</td>
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<td>&a.rwatson;</td>
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<td>There have been reports of occasional corruption of socket buffers
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and/or spinning in tcp_output(). This may have been the result of
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missing socket buffer locking in tcp_output(), which has now been
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corrected in 6.x and 5.x; the release engineering team is awaiting
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word as to whether this fixes the problems experienced by the
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submitter.</td>
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</tr>
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<tr>
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<td>Reports of hangs using i4b (isdn4bsd)</td>
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<td>&status.untested;</td>
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<td>&a.rwatson;</td>
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<td>There have been reports of system hangs while using ISDN with the
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i4b ISDN framework on SMP systems. These likely result from
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insufficient synchronization in the i4b implementation when runnning
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without the Giant lock over the network stack. The workaround until
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this is fixed is to re-assert the Giant lock over the stack when
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i4b is compiled into the kernel; this has been committed to 6.x and
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and 5.x. The Release Engineering team awaits word that this corrects
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the problems experienced by the submitter.</td>
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</tr>
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<tr>
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<td>Problems with multicast and setuid binaries/daemons</td>
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<td>&status.untested;</td>
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<td>&a.rwatson;, &a.csjp;</td>
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<td>There have been reports that multicast socket options on raw sockets
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no longer work properly with daemons changing privilege or setuid
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binaries. These symptoms have been tracked down to bugs relating to
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permitting limited use of raw sockets in jail(). A patch correcting
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these problems has been merged to 6.x and 5.x. The Release
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Engineering team awaits news that this corrects the problems reported
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by the submitter.</td>
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</tr>
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</table>
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&footer;
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