Failure Modes of Networking Tools?
danielv at netvision.net.il
danielv at netvision.net.il
Tue Dec 18 19:54:39 UTC 2001
Scamper uses a semaphore (or more?) to communicate with the d/l process.
When processes raise a debugger which is dismissed this tends to leave a
semaphore one signal short... If other name resolution does work (use
any other network code), that's probably it. Just signal the semaphore
manually.
Daniel
"Andrew C. Greenberg" <werdna at mucow.com> wrote:
> So, I was browsing along happily in Scamper when I loaded up a website
> that seemed to confuse it. Afterwards, I was unable to load ANY
> website. Checking further, I noted that name resolution was freezing
> without return for domains that should have worked fine.
>
> So, just to be sure, I saved the image, checked networking on the
> machine itself. All was well.
>
> Restarted the image, same deal. Network installed OK, and the
> NetNameResolver reported status 1 (ready). But a simple netname
> resolution failed again by freezing.
>
> So I took a safety play and restarted the machine. Same deal.
>
> Tried a fresh image, all was well.
>
> So the problem appears network related and image-specific. How can I
> fix the old image? I'm not sure what even to check. Any thoughts?
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