6.2 SHOWSTOPPER - em completely unusable on 6.2
Craig Boston
craig at feniz.gank.org
Fri Sep 29 14:22:02 PDT 2006
Doesn't seem to have any effect for me (other than high sys% times).
qemu is really good at provoking my em0 to timeout.
On Fri, Sep 29, 2006 at 12:27:41AM -0700, David G Lawrence wrote:
> Attached is a simple user program that will immediately cause pretty much
> all of the network drivers (at least the ones I own) to stop working and
> get watchdog timeouts.
>
> WARNING: This program will kill the network on your 6.x server. Do not run
> this on a production machine unless you are on the console and can ctrl-C
> it!
>
> -DG
>
> David G. Lawrence
> President
> Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500
> The FreeBSD Project - http://www.freebsd.org
> Pave the road of life with opportunities.
> #include <sys/poll.h>
>
> main()
> {
> struct pollfd pfd;
>
> pfd.fd = 1;
> pfd.events = POLLOUT;
> pfd.revents = 0;
>
> while (1) {
> if (poll(&pfd, 1 /* stdout */, -1) < 0)
> break;
> }
> }
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