On Mon, Nov 18, 2013 at 12:15 PM, Michal Sekletar <msekl...@redhat.com>wrote:
> On Mon, Nov 18, 2013 at 12:38:24AM -0500, Benjamin Vanheuverzwijn wrote: > > Hi, > > Hi Benjamin, > Hi, thanks for your reply! > > > > > libpcap version: 1.4.0 (on archlinux) > > I am running Fedora 19 (libpcap-1.4.0). > > > > > Is it possible to have multiple call to "pcap_open_live()" followed by > > pcap_close() ? > > It shouldn't be a problem. > > > > > It seems like pcap_close() doesn't cleanly close opened resources, if you > > strace the following program, you will see file descriptors growing up. > > I am unable to reproduce the issue. In strace output I see only descriptor > 3 > which is acquired and closed on every iteration. Tried with two NICs, > wired and > wireless. > > > > > Am i doing it wrong? How it should be done? > > From output you have provided I have a suspicion that your problem is > somehow > caused by calling open() on those /sys/bus/usb/* files. I don't have those > in my > strace output, probably because interface you have used is hotplugged > wireless > usb dongle, I guess (judging by interface name from udev). > > I might be able to try again with wireless USB dongle tomorrow. Will keep > you > posted on my findings. > Actually "wls3" is a pci device: 03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61) But as you found out, i also had a USB dongle plugged in. I tried to remove the USB dongle but i have the same problem. I've attached a strace output file with 10 iterations. I'll keep experimenting. -- Benjamin Vanheuverzwijn
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