From: Gary Thomas <gthomas@redhat.com>
To: Marco Monguzzi <marco@sitek.it>
Cc: ecos-discuss@sourceware.cygnus.com, Grant Edwards <grante@visi.com>
Subject: RE: [ECOS] problems with MBUFs (TCP/IP stack)
Date: Mon, 10 Jul 2000 10:41:00 -0000 [thread overview]
Message-ID: <XFMail.20000710114133.gthomas@redhat.com> (raw)
In-Reply-To: <NCBBKIOHEKNFDFBEBPNHAEFMDOAA.marco@sitek.it>
On 10-Jul-2000 Marco Monguzzi wrote:
>> I've set up a test script that starts and stops my host-end
>> application, and so far have about 500 TCP/IP open/close cycles
>> without problems. I haven't been printing MBUF counters, but I
>> haven't seen any panics or anything else odd. After I let this
>> run for a while longer, I might have to try it with the program
>> from the test suite.
>
> I would appreciate whether you could provide me with you test programs.
> I will try them on my target. A bit more on the behavior we observe with
> server_test.c: we found that the problem is in the "close connection
> sequence"
> (close(client); Line 128). One MBUF remains allocated because not all the
> needed
> "free functions" are called. In detail, close() does not call tcp_close().
> The latter should call the free() for the tcp_template that we think remains
> allocated.
>
Are you sure about this? The 'close(client)' call should end up calling
"socket_close()" which in turn calls "tcp_close()". Have you tried tracing
through this, e.g. using GDB, to see what happens when you call 'close(client)'?
next prev parent reply other threads:[~2000-07-10 10:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-07-08 5:54 Marco Monguzzi
2000-07-08 8:26 ` Grant Edwards
2000-07-08 11:45 ` Marco Monguzzi
2000-07-08 12:05 ` Marco Monguzzi
2000-07-10 8:50 ` Grant Edwards
2000-07-10 9:53 ` Gary Thomas
2000-07-10 10:21 ` Marco Monguzzi
2000-07-10 10:33 ` Grant Edwards
2000-07-10 10:41 ` Gary Thomas [this message]
2000-07-10 11:18 ` Marco Monguzzi
2000-07-10 13:03 ` Grant Edwards
2000-07-11 3:45 ` Hugo 'NOx' Tyson
2000-07-11 8:38 ` Marco Monguzzi
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