Bugs item #2115547, was opened at 2008-09-16 23:13
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Category: vde_switch
Group: None
Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: Michael Sallaway (sallz0r)
Assigned to: Luca Bigliardi (shammash)
Summary: vde_switch can't use more than 96 ports

Initial Comment:
When using vde_switch (most recent, 2.2.2, downloaded from here and compiled) 
it segfaults when setting the number of ports greater than 96, and then 
bringing the tap interface up.

To replicate:

Using command line: vde_switch -s /var/run/vde2/tap0.ctl -m 660 -p 
/var/run/vde2/tap0.pid -t tap0 -M /var/run/vde2/tap0.mgmt --mgmtmode 660

then issuing the vde_switch command: "port/setnumports 97"

then at another terminal: "ifconfig tap0 up"

causes the segfault.

Probing a bit in gdb looks like it's in port.c:512 --

Program received signal SIGSEGV, Segmentation fault.
0x0804c209 in handle_in_packet (port=1, packet=0xbfec18ae, len=<value optimized 
out>) at port.c:512

but I couldn't quite figure out what all the macros were doing in that line. 
I'll have a more detailed look  to see if I can figure out what it's doing...


Comment By: Nobody/Anonymous (nobody)
Date: 2012-08-29 04:14

ZqZBNK  <a href="http://bcnxbzyejlht.com/";>bcnxbzyejlht</a>,


Comment By: Nobody/Anonymous (nobody)
Date: 2012-07-21 09:08

cZf8jj  <a href="http://iglrrgbaswzf.com/";>iglrrgbaswzf</a>,


Comment By: Luca Bigliardi (shammash)
Date: 2008-09-21 06:45

I've committed your patch (svn revision 321).

Unfortunately I cannot reproduce what you said on IRC:
"<sall> at the moment, it looks like the bug may not be completely fixed --
I can set a large number of ports fine, and it doesn't segfault anymore,
but it stops transferring data, too :-("

I'm closing the bug, feel free to re-open it if you have further
informations on how to reproduce the "data transfer" problem.

Thank you,



Comment By: Michael Sallaway (sallz0r)
Date: 2008-09-19 00:56

Fixed, see attachment.
File Added: 2115547-fix.patch


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