Wireshark-users: Re: [Wireshark-users] Wireshark (1.4.0) fails opening large file on Windows Vist
From: Tamás Varga <[email protected]>
Date: Mon, 25 Oct 2010 12:02:32 +0200
Hi Wiresharkers,
Complementing my earlier mail, I have made a little survey on the issue.
With editcap, I have split the file into two parts, and it can be loaded:
 editcap -c 6000000 wa_00000_20100730043832.pcap wab.pcap
However, tshark.exe fails to open the file, even in file-to-file mode with filter:
 tshark -r wa_00000_20100730043832.pcap -w wac.pcap -R "ip.addr =="
Running capinfos.exe, yields negative file size:
C:\Temp>capinfos wa_00000_20100730043832.pcap
File name:           wa_00000_20100730043832.pcap
File type:           Wireshark/tcpdump/... - libpcap
File encapsulation:  Ethernet
Packet size limit:   file hdr: 300 bytes
Packet size limit:   inferred: 300 bytes
Number of packets:   11697799
File size:           -1855096401 bytes
Data size:           7220225590 bytes
Capture duration:    60 seconds
Start time:          Fri Jul 30 04:38:32 2010
End time:            Fri Jul 30 04:39:32 2010
Data byte rate:      119560482.40 bytes/sec
Data bit rate:       956483859.19 bits/sec
Average packet size: 617.23 bytes
Average packet rate: 193705.10 packets/sec
SHA1:                f3fea0286f21f5ce8543e960f95b72503c40c953
RIPEMD160:           e32e45c02492ecf54ffff0a1ff07bd895f70962e
MD5:                 e18b4af9a612379a315780cfad7bd9df
Strict time order:   False
With respect to my earlier mail, I was about to open the file and press STOP to prevent loading the entire file.
(I was not expecting to fit a >2GB file into the user-space of 32-bit application). But the "Loading..." window does not appear.

From: [email protected] [mailto:[email protected]] On Behalf Of Tamás Varga
Sent: Monday, October 25, 2010 11:12
To: [email protected]
Subject: [Wireshark-users] Wireshark (1.4.0) fails opening large file on Windows Vista 32-bit.

Hi Wiresharkers,
I have received a large PCAP file on NTFS filesystem of size 2,439,870,895 bytes.
Opening the file yields the following error message (after a long wating time):
GLib-ERROR **: gmem.c:136: failed to allocate 4294967295 bytes aborting…
To open the file, is it worth seeking for a 64-bit machine?
Is largefile support planned in any 32-bit versions of Wireshark?