Cannot Live-capture VirtualBox network packets with Wireshark; pipe problem

This issue was migrated from bug 6002 in our old bug tracker.

Original bug information:

Reporter: Technologov
Status: RESOLVED FIXED
Product: Wireshark
Component: GTK+ UI
OS: Debian
Platform: Other
Version: 1.6.0

Attachments:

myvm.cap: This is the PCAP file that VirtualBox generates.
foo.patch: Don't set state to STATE_EXPECT_DATA if there's no data to read