Open PS2 Loader 0.5 and Linux SMB (vs XP)

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12-09-2009, 01:11 PM
endymion2k5

Open PS2 Loader 0.5 and Linux SMB (vs XP)

First of all, Thank you very much for this neat tool. Im sure it will get lots better along the way. The idea is great and from my perspective SMB loads a
lot faster then USB ever will.

I am attempting to run this over the SMB Networking share, but having bad luck.

My PS2 is a Slim, SCPH-77006. Hooked up on the LAN, which connects to various devices.

It seems i am having big issues getting this to work "nicely" on Linux. Windows is not an issue, it works flawlessly. The network setup itself is good, PS2 Loader detects the games. This is not the issue.

I have Two computers subject for testing. One being XP and one being Debian Squeeze. Both had the right changes under the hood to make PS2 Loader work and "log into the share". The game that both shares present to the PS2 is Killzone (SCUS).

With Windows XP (Laptop, not VMWare) i can keep the game running multiple hours in the menu/intro. It does not crash nor disconnect from the Share.
With Debian Samba, i CANNOT keep the game running over 5 minutes, in the menu/intro. It crashes after the intro/menu where it starts loads a second video.

The game has been dumped again to the share to ensure i was not dealing with broken data. The result is the same.

I sniffed the traffic and made Samba log with level 3. It does not show anything weird, apart from that all Data stops, Samba says the Endpoint has been disconnected, Connection reset by peer. The PS2 freezes after this. It always seems to crash before an ACK however, and always at the same part of the movie (XP passes this part multiple times).

I was thinking it could be related to the Linux networking stack. This is why i have installed VMware on the Linux Server. I have done two tests.

Debian > VMware > Opensuse 64 bit > PS2 Loader crashes at same point. (Not Linux Distro related? Debian Samba 3.43 vs Suse Samba 3.42)
Debian > VMWare > XP > PS2 Loader works as a charm, no crashes. (Not Debian network related?)

Could anyone give me a nudge in the right direction?
12-09-2009, 01:56 PM
TnA

To me it seems the Samba-Server on PC-Side (on Linux) do auto-idle, if no new data was requested, within a specific time.

This answer might be a really dumb one, but I thought I throw it in, to give you a hint at least...
12-09-2009, 02:09 PM
endymion2k5

Quote:

Originally Posted by TnA

To me it seems the Samba-Server on PC-Side (on Linux) do auto-idle, if no new data was requested, within a specific time.

This answer might be a really dumb one, but I thought I throw it in, to give you a hint at least...

That is what i thought from the start aswell. I have been fiddling with this for a few days now. There are a few things i have already tried with Samba (Debian)

smb ports = 139 (change 445 to 139 on PS2 loader, havent noticed side effects but did not came further)
socket options = SO_KEEPALIVE TCP_NODELAY IPTOS_LOWDELAY
announce version = 5.0
wins support = true
oplocks = no
locking = no
level 2 oplocks = no

At the point of the "crash" there is data being send. The video does load for a good 10 to 15 seconds, tcpdump detects troughput at this time. I do not think it has anything to do with it being idle. Even in the menu it tends to load a bit from the network.
12-09-2009, 02:12 PM
E P

Yes, as TnA says you probably need the to add the following to your samba smb.conf file:

Code:

[global] keep alive = 0

The "keep alive" or "keepalive" option needs to be added to your existing [global] settings section. At least, that's what fixed it in for me.
12-09-2009, 02:21 PM
JNABK

ive made a guide for some of the commonly used OS and there is one for Linux that might help. ;)

http://home.comcast.net/~jnabk2/openps2/networking.html
12-09-2009, 02:26 PM
endymion2k5

Quote:

Originally Posted by E P

Yes, as TnA says you probably need the to add the following to your samba smb.conf file:

Code:

[global] keep alive = 0

The "keep alive" or "keepalive" option needs to be added to your existing [global] settings section. At least, that's what fixed it in for me.

Thank you very much, this indeed fixed the issue. Well, it passed the video one time. It never did before.

Im gonna let it run for a bit longer but im pretty sure that it has been resolved.

EDIT: Fixed indeed :D
12-09-2009, 05:45 PM
izdubar

Hmm, keepalive parameter is for the server sending keepalive packets.

Putting it to 0, stop the sending. If it solved the problem, that means the PS2 (client) doesn't respond to this special packet.

Anyway that may be a normal behavior, as the PS2 only bother to read data from the share ...