[Mldonkey-bugs] [bugs #11149] Core does not close file descriptors and eventually hits ulimit

[anonymous]

This mail is an automated notification from the bugs tracker
 of the project: mldonkey, a multi-networks file-sharing client.

/**************************************************************************/
[bugs #11149] Latest Modifications:

Changes by: Anonymous user
Date:  
                dim 05.12.2004 at 17:21

------------------ Additional Follow-up Comments ----------------------------
It's been a very long time since I've seen such problem on my own core. So It's 
either MacOS X related, or related to the way to use mlnet.







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[bugs #11149] Full Item Snapshot:

URL: <http://savannah.nongnu.org/bugs/?func=detailitem&item_id=11149>
Project: mldonkey, a multi-networks file-sharing client
Submitted by: 0
On: sam 27.11.2004 at 12:12

Category:  Core
Severity:  5 - Average
Item Group:  Program malfunction
Resolution:  None
Privacy:  Public
Assigned to:  None
Status:  Open
Release:  2-5-22
Release:  10.3.6
Platform Version:  Mac OS X Jaguar
Binaries Origin:  Downloaded from third-party page
CPU type:  PowerPC


Summary:  Core does not close file descriptors and eventually hits ulimit

Original Submission:  It would appear that core does not always close dormant 
file descriptors which causes open file descriptors to increase to the point 
that core stops working due to reaching max ulimit.  This happens on both 
Jaguar and Panther and versions 2-5-22 and 2-5-16 of mlnet (current version of 
Panther is 10.3.6).  Using lsof, the problematic file descriptors look like:

mlnet      1551 jume  113u  IPv4                   0t0      TCP no PCB, 
CANTSENDMORE, CANTRCVMORE

Hypothesize that this is due to a connection that is not closed properly at the 
other end and core does not detect that the file descriptor is no longer usable 
or needed.  After some period of time these file descriptors keep increasing 
until the ulimit is reached and core hangs.


Follow-up Comments
------------------


-------------------------------------------------------
Date: dim 05.12.2004 at 17:21       By: 0 <None>
It's been a very long time since I've seen such problem on my own core. So It's 
either MacOS X related, or related to the way to use mlnet.


-------------------------------------------------------
Date: sam 27.11.2004 at 14:52       By: 0 <None>
Have discovered that the file descriptors in question are not in the file 
descriptor list so that "poll" or "select" never sees them.  They must have 
been opened at some point but because of an error were never added to the file 
descriptor list but also not closed.  That is apparently why they are left 
orphaned.












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