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The Seeker

September 10th, 2001 05:19 AM

Freezing problem clue.

I woke up to a frozen XoloX. I was running the debugger, but I couldn't understand what was going on past the fact that it wasn't in a small infinate loop so far as I could tell.

What I did to was run a netstat to see who I was connected to, and lo and behold, I saw this:

Code:

Proto  Local Address          Foreign Address        State

TCP    computer:4414          127.16.255.17:6346     ESTABLISHED

TCP    computer:6346          127.16.255.17:4414     ESTABLISHED

Which I assume is very very bad, considering that this is a loopback address. Somewhere in your code I think you made it so you can't connect to your own IP, but it seems that some people are 'force real IP'ing to be a loopback address, and it's killing XoloX.

Pasman

September 10th, 2001 11:32 AM

Hi Seeker. Thanks for this useful tip.

>Which I assume is very very bad, considering that this is a loopback address. Somewhere in your code I think you made it so you can't connect to your own IP, but it seems that some people are 'force real IP'ing to be a loopback address, and it's killing XoloX.

I will check the outgoing HTTP download, outgoing gnutella and HTTP push for valid downloading IP's. Maybe there is a leak somewhere.

Greets,
Pasman

l0ts	September 10th, 2001 01:27 PM

loopback

I've been having same problem with loopback addresses on 98 and 2kpro, hoped it would go away with 1.11 upgrade from 1.09 but it didn't.

Moak	September 11th, 2001 07:07 AM

Dead lock

Hi,
following Seekers idea, I noted every open connection after a crash. I had 3 crashs the last days:

Code:

  Proto  Local Address          Foreign Address        State

  TCP    computer:1469          127.0.135.5:6346       ESTABLISHED

  TCP    computer:6346          127.0.135.5:1469       ESTABLISHED
 

  Proto  Local Address          Foreign Address        State

  TCP    computer:3409          computer:6346          ESTABLISHED

  TCP    computer:6346          computer:3409          ESTABLISHED
 

  Proto  Local Address          Foreign Address        State

  TCP    computer:1965          127.187.8.70:6346      ESTABLISHED

  TCP    computer:6346          127.187.8.70:1965      ESTABLISHED

Yeah, there must be a dead lock when XoloX connects to loopback (127/8) or his own IP, a get/push freezes XoloX in that case.

Cya, Moak

PS: Propably there could be another dead lock, when you use multiple IPs or a misconfigured router.... so that a private network address in your LAN points back to the Xolox host. It might be worth to test this case.

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