| 2008-08-21 17:00:38 |
Kees Cook |
bug |
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added bug |
| 2008-08-21 17:03:39 |
Kees Cook |
bug |
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assigned to x11proto-core (Ubuntu) |
| 2008-08-21 17:07:31 |
Kees Cook |
bug |
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assigned to xorg-server |
| 2008-08-21 17:08:12 |
Kees Cook |
bug |
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added attachment '200_raise_maxclients.patch' (x11proto-core patch for fdset) |
| 2008-08-21 17:08:55 |
Kees Cook |
bug |
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added attachment '200_raise_maxclients.patch' (xorg-server patch for maxclients) |
| 2008-08-21 17:17:10 |
Bug Watch Updater |
xorg-server: status |
Unknown |
Confirmed |
|
| 2008-08-21 18:33:17 |
Timo Aaltonen |
xorg-server: status |
New |
Confirmed |
|
| 2008-08-21 18:33:17 |
Timo Aaltonen |
xorg-server: importance |
Undecided |
Wishlist |
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| 2008-08-21 18:33:17 |
Timo Aaltonen |
xorg-server: statusexplanation |
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asked upstream about it. The patches are indeed in RHEL4, so they should be tested by now. They don't seem to qualify as-is to upstream though:
20:52 < ajax> you trade more clients for fewer resources per client
21:05 < ajax> the XID space is carved up weird
21:06 < ajax> (when i say "resources" i mean "protocol objects with an XID")
21:06 < ajax> top three bits are reserved (f*** you lisp), next eight bits are client id, the
rest are for the client to allocate however it likes.
21:08 < ajax> so, with 256 clients, each of them can create up to 2 ^ (32 - 8 - 3) ~= 2
million resources
21:08 < ajax> 512 clients, one million resources each. etc.
21:09 < ajax> XIDs are allocated client-side to avoid round-tripping to the server on every
resource creation, but that means you have to be able to allocate unique ids
within each client. so you have to have some partition...
21:10 < ajax> i suppose the right way to fix this is to do a field survey of how many
resources a typical "small" app and a typical "big" app use.
21:13 < ajax> on my machine, metacity is far and away the one with the most resources, and
it's still down around the 2000 mark
21:13 < ajax> you do still want a fairly sizable allocation per client since XID reuse is
pretty fast and furious, and requires a round trip through xc-misc
21:14 < ajax> and, you can't know that you're talking to an xlib that's new enough to know
about the newer version of xc-misc
21:18 < ajax> this _might_ be a case where you could do protocol 11.1 meaningfully
21:18 < ajax> which would let the server assign huge ranges to 11.0 clients and tiny ones to
11.0 clients
21:18 < ajax> uh, tiny ones to 11.1 clients
so, we can fix this in our packages, but it would not be the final solution. |
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| 2008-08-21 18:33:32 |
Timo Aaltonen |
x11proto-core: status |
New |
Confirmed |
|
| 2008-08-21 18:33:32 |
Timo Aaltonen |
x11proto-core: importance |
Undecided |
Wishlist |
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| 2008-08-21 18:33:32 |
Timo Aaltonen |
x11proto-core: statusexplanation |
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| 2008-09-10 00:05:32 |
Bryce Harrington |
xorg-server: status |
Confirmed |
Triaged |
|
| 2008-09-10 00:05:32 |
Bryce Harrington |
xorg-server: statusexplanation |
asked upstream about it. The patches are indeed in RHEL4, so they should be tested by now. They don't seem to qualify as-is to upstream though:
20:52 < ajax> you trade more clients for fewer resources per client
21:05 < ajax> the XID space is carved up weird
21:06 < ajax> (when i say "resources" i mean "protocol objects with an XID")
21:06 < ajax> top three bits are reserved (f*** you lisp), next eight bits are client id, the
rest are for the client to allocate however it likes.
21:08 < ajax> so, with 256 clients, each of them can create up to 2 ^ (32 - 8 - 3) ~= 2
million resources
21:08 < ajax> 512 clients, one million resources each. etc.
21:09 < ajax> XIDs are allocated client-side to avoid round-tripping to the server on every
resource creation, but that means you have to be able to allocate unique ids
within each client. so you have to have some partition...
21:10 < ajax> i suppose the right way to fix this is to do a field survey of how many
resources a typical "small" app and a typical "big" app use.
21:13 < ajax> on my machine, metacity is far and away the one with the most resources, and
it's still down around the 2000 mark
21:13 < ajax> you do still want a fairly sizable allocation per client since XID reuse is
pretty fast and furious, and requires a round trip through xc-misc
21:14 < ajax> and, you can't know that you're talking to an xlib that's new enough to know
about the newer version of xc-misc
21:18 < ajax> this _might_ be a case where you could do protocol 11.1 meaningfully
21:18 < ajax> which would let the server assign huge ranges to 11.0 clients and tiny ones to
11.0 clients
21:18 < ajax> uh, tiny ones to 11.1 clients
so, we can fix this in our packages, but it would not be the final solution. |
|
|
| 2008-09-10 00:06:12 |
Bryce Harrington |
x11proto-core: status |
Confirmed |
Triaged |
|
| 2008-11-21 18:35:25 |
Kees Cook |
x11proto-core: milestone |
|
jaunty-alpha-4 |
|
| 2009-01-12 21:34:26 |
Bryce Harrington |
xorg-server: status |
Triaged |
In Progress |
|
| 2009-01-12 21:34:26 |
Bryce Harrington |
xorg-server: statusexplanation |
|
Plan is to tackle this post-alpha3, as it will require changing x11proto-core first so will be safest to do post-release. |
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| 2009-01-27 07:16:13 |
Bryce Harrington |
xorg-server: assignee |
|
bryceharrington |
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| 2009-01-27 07:16:13 |
Bryce Harrington |
xorg-server: statusexplanation |
Plan is to tackle this post-alpha3, as it will require changing x11proto-core first so will be safest to do post-release. |
|
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| 2009-02-05 04:40:41 |
Bryce Harrington |
bug |
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added attachment 'xorg-server_1.5.99.902-0ubuntu2.debdiff' (xorg-server_1.5.99.902-0ubuntu2.debdiff) |
| 2009-02-05 04:59:19 |
Bryce Harrington |
bug |
|
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added attachment 'x11proto-core_7.0.14-1ubuntu1.debdiff' (x11proto-core_7.0.14-1ubuntu1.debdiff) |
| 2009-02-05 05:44:34 |
Bryce Harrington |
bug |
|
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added attachment 'x11proto-core_7.0.14-1ubuntu1.debdiff' (x11proto-core_7.0.14-1ubuntu1.debdiff) |
| 2009-02-05 08:10:53 |
Bryce Harrington |
xorg-server: status |
In Progress |
Fix Committed |
|
| 2009-02-05 08:10:53 |
Bryce Harrington |
xorg-server: statusexplanation |
|
Patch committed to git; will be uploaded after freeze is lifted. |
|
| 2009-02-05 08:12:24 |
Bryce Harrington |
x11proto-core: status |
Triaged |
In Progress |
|
| 2009-02-05 08:12:24 |
Bryce Harrington |
x11proto-core: statusexplanation |
|
Patch for x11proto-core is ready to go once archive unfrozen. |
|
| 2009-02-06 09:00:41 |
Launchpad Janitor |
xorg-server: status |
Fix Committed |
Fix Released |
|
| 2009-02-09 21:59:57 |
Bryce Harrington |
xorg-server: status |
Fix Released |
Triaged |
|
| 2009-02-09 21:59:57 |
Bryce Harrington |
xorg-server: statusexplanation |
Patch committed to git; will be uploaded after freeze is lifted. |
Reverted patch, since it breaks -nvidia.
Sorry, it seems to do this properly requires a rev of the X11 protocol, which is a much bigger endeavor than can be done in Ubuntu. Upstream seems open to doing this though, but as this is a wishlist item, I would prefer you would please work with upstream (ajax) directly on this.
|
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| 2009-02-09 22:00:28 |
Bryce Harrington |
x11proto-core: status |
In Progress |
Triaged |
|
| 2009-02-09 22:00:28 |
Bryce Harrington |
x11proto-core: statusexplanation |
Patch for x11proto-core is ready to go once archive unfrozen. |
|
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| 2009-02-09 22:00:56 |
Bryce Harrington |
title |
Xorg needs client limit raised |
(needs x11 protocol update) Xorg needs client limit raised |
|
| 2009-02-09 22:01:12 |
Bryce Harrington |
xorg-server: assignee |
bryceharrington |
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| 2009-02-09 22:01:12 |
Bryce Harrington |
xorg-server: statusexplanation |
Reverted patch, since it breaks -nvidia.
Sorry, it seems to do this properly requires a rev of the X11 protocol, which is a much bigger endeavor than can be done in Ubuntu. Upstream seems open to doing this though, but as this is a wishlist item, I would prefer you would please work with upstream (ajax) directly on this.
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| 2010-02-22 22:34:53 |
Launchpad Janitor |
branch linked |
|
lp:ubuntu/xorg-server |
|
| 2010-09-11 13:02:03 |
Bug Watch Updater |
xorg-server: importance |
Unknown |
Medium |
|
| 2011-01-24 13:39:47 |
Bug Watch Updater |
xorg-server: importance |
Medium |
Unknown |
|
| 2011-03-21 14:13:34 |
Bug Watch Updater |
xorg-server: importance |
Unknown |
Medium |
|
| 2011-03-23 01:52:03 |
Hew |
removed subscriber Hew McLachlan |
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| 2011-05-11 14:52:25 |
Timo Aaltonen |
x11proto-core (Ubuntu): status |
Triaged |
Won't Fix |
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| 2011-05-11 14:52:25 |
Timo Aaltonen |
x11proto-core (Ubuntu): milestone |
jaunty-alpha-4 |
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| 2011-05-11 14:52:34 |
Timo Aaltonen |
xorg-server (Ubuntu): status |
Triaged |
Won't Fix |
|
