Your message dated Tue, 29 Jul 2014 11:19:05 +0000
with message-id <[email protected]>
and subject line Bug#755501: fixed in ircd-ratbox 3.0.8.dfsg-3
has caused the Debian Bug report #755501,
regarding ircd-ratbox resolver daemon hits 100% cpu on irc client connect,
fails to resolve hostname.
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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immediately.)
--
755501: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=755501
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: ircd-ratbox
Version: 3.0.8.dfsg-2
Severity: important
Dear Maintainer,
After upgrading to 3.0.8-dfsg-2, I noticed connecting to the IRC server was
very slow and resulted in hostnames not being (reverse) resolved.
Upon inspection, it seemed that the ircd resolver daemon was using a lot of
CPU (100% in top). A systrace did not yield anything, but an ltrace showed a
continuous stream of the same line:
rb_get_pseudo_random(0x7fffa62abc86, 2, 0x7f583268fba0, 0) = 1
(I'll get back to this later).
I tried killing the ircd resolver daemon (had to kill it with SIGKILL) and it
came back at 0% CPU usage. However, everytime a client connected, the same
thing happened (cpu to 100%, ip not reverse resolved).
I did a quick check in the source code and it seemed that this function was
called in a tight loop if the random number that was returned is always
0xffff (a 16-bit short was requested).
ADDITIONAL INFORMATION
* tested with 3.0.7.dfsg-3, does NOT suffer from this problem
* tested on two different machines, both virtualized (one OpenVZ, one LXC)
(I don't know if it matters, but I included it for completeness).
-- System Information:
Debian Release: jessie/sid
APT prefers testing
APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.14-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages ircd-ratbox depends on:
ii libc6 2.19-7
ii libgnutls-deb0-28 3.2.15-3
ii libltdl7 2.4.2-1.7
ii libsqlite3-0 3.8.5-2
ii lsb-base 4.1+Debian13
ii multiarch-support 2.19-7
ircd-ratbox recommends no packages.
Versions of packages ircd-ratbox suggests:
pn ntp | openntpd | time-daemon <none>
-- Configuration Files:
/etc/default/ircd-ratbox changed [not included]
-- no debconf information
--- End Message ---
--- Begin Message ---
Source: ircd-ratbox
Source-Version: 3.0.8.dfsg-3
We believe that the bug you reported is fixed in the latest version of
ircd-ratbox, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Marc Dequènes (Duck) <[email protected]> (supplier of updated ircd-ratbox
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.8
Date: Tue, 29 Jul 2014 13:01:12 +0200
Source: ircd-ratbox
Binary: ircd-ratbox ircd-ratbox-dbg
Architecture: source amd64
Version: 3.0.8.dfsg-3
Distribution: unstable
Urgency: high
Maintainer: Marc Dequènes (Duck) <[email protected]>
Changed-By: Marc Dequènes (Duck) <[email protected]>
Description:
ircd-ratbox - advanced, stable and fast ircd
ircd-ratbox-dbg - debugging symbols for ircd-ratbox
Closes: 755501
Changes:
ircd-ratbox (3.0.8.dfsg-3) unstable; urgency=high
.
* Previous gcrypt-related patch was broken, reworked (Closes: #755501).
* Added patch to log early messages to stderr instead of loosing them.
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