[Winpcap-users] Issues with Multiple NIC cards

[Voora, Srinivas]

Hi GV,

 

The reason for the crash is heap corruption. It most probably happening
in my code, just wanted to double check with the group. 

We have put locks on the threads, it seems to be helping, and we can
positively conclude this after few days. 

 

Thanks for the Help.

 

Srinivas 

 



etalk, an Autonomy company
Srinivas Voora
Product Developer
 
4040 West Royal Lane, Suite 100
Irving, Texas 75063     
ph: 972.819.3212
fax: 972.819.3300
 
Srinivas.Voora at etalk.com
www.etalk.com <http://www.etalk.com>-----Original Message-----
From: winpcap-users-bounces at winpcap.org
[mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Gianluca Varenni
Sent: Wednesday, October 18, 2006 11:13 AM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Issues with Multiple NIC cards

 

Srinivas,

 

it is definitely safe to capture from multiple cards (using for example
a thread per card). The only function that is not thread safe is
pcap_compile(), which uses some global variables to compile the filters.


 

What is the exact reason for the crash? access violation? 

GV

	----- Original Message ----- 

	From: Voora, Srinivas <mailto:Srinivas.Voora at etalk.com>  

	To: winpcap-users at winpcap.org 

	Sent: Monday, October 16, 2006 2:53 PM

	Subject: [Winpcap-users] Issues with Multiple NIC cards

	 

	Hi,

	 

	I wanted to check if there are any issues running with multiple
NIC cards (4 fiber optic cards). We have one thread for each card doing
pcap_next_ex( handle, &header, &data ). The app crashes all of a sudden.
The dump doesn't show any particular location other then it happens in
the functions relating to the packet captures. This doesn't happen with
one NIC card. We are using win pcap version 3.1.

	 

	Thanks in Advance,

	Srinivas

	 

etalk, an Autonomy company

Srinivas Voora

Product Developer

 

4040 West Royal Lane, Suite 100

Irving, Texas  75063

ph: 972.819.3212

fax: 972.819.3300

 

Srinivas.Voora at etalk.com

www.etalk.com <http://www.etalk.com/>  

 

 

	 

	 

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