[User-mode-linux-devel] test8 network lockup

[William S. <wst...@po...>]

Good day, all,
	I spent a few hours beating on the networking code in test8 (James
Leu's new eth code).  wget, running in a continuous loop on the host, kept
asking the squid proxy in uml to get a web tree from an external web
server.  Granted, squid caches the requests so it didn't exercise outgoing
packets, but the tap-eth0 link did get a steady flow of packets.  I was
able to make at least 65K web requests to squid without a burp.
	I was able to get it to burp, unfortunately, by running "ping -f
host_ip" inside uml while those outside requests were still coming
in.  The primary console got the following message:

Kernel panic: Already have result in set_syscall_result

	Ping went up to 85% cpu utilization in the host's top.  I'm
testing some more with just the uml->host ping.
	Cheers,
	- Bill

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William Stearns (wst...@po...).  Mason, Buildkernel, named2hosts, 
and ipfwadm2ipchains are at:                http://www.pobox.com/~wstearns
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