VERY unstable SLIP

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MaLICiouS
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VERY unstable SLIP

Postby MaLICiouS » Mon May 26, 2008 9:09 pm

Hello!
I'm playing around with SLIP on my Falcon030. I use SCC.XDD and SLIP.XIF. I get connection at 1900 baud using pppd(8), and DNS is working with NAT through my DEC Personal Workstation 433au running OpenBSD. However, when a lot of data is flowing to the Falcon during page loads etc. the system grinds to a complete halt. Sometimes I get memory violations during the boot sequence of FreeMiNT, and I have to do a reset. "sld" is the process affected by the memory violation errors.
I suspect that this is an issue with the FreeMiNT kernel. I'm running kernel version 1-16-3(cur).
Any ideas?

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Cyprian
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Re: VERY unstable SLIP

Postby Cyprian » Mon May 26, 2008 9:45 pm

Frankly speaking my knowledge about connection Mint/Slip and Linux is equal zero :)
But under TOS and Magic (unmod. Falcon)a had stable connection with PC/Windows at 115200 via STiNG.
Lynx II / Jaugar / TT030 / Mega STe / 800 XL / 1040 STe / Falcon030 / 65 XE / 520 STm / SM124 / SC1435
SDrive / PAK68/3 / Lynx Multi Card / LDW Super 2000 / XCA12 / SkunkBoard / CosmosEx / SatanDisk / UltraSatan / USB Floppy Drive Emulator / Eiffel / SIO2PC / Crazy Dots / PAM Net
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http://260ste.appspot.com/

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MaLICiouS
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Re: VERY unstable SLIP

Postby MaLICiouS » Tue May 27, 2008 12:58 pm

The serial connection is verified to work at 115200 with other machines and the OpenBSD box. The reason I'm using 19200 on the Falcon at the moment is that I regard it as a safe default, to rule out a bad cable. No, the problem I'm having is probably kernel related. Everything works for about 20 seconds of high load, then everything freezes. When taking the memory protection errors into account, I'd say that there's something with either SLIP.XIF or SCC.XDD, or possibly INET4.XDD that is playing tricks on the kernel.
Anyone have a working(stable) SLIP setup on a standard Falcon030 with FreeMiNT 1.16.3?
4MB 1040STe
4MB Mega/STE with FreeMiNT/XaAESm 40MB SCSI HD, 1.44M floppy
Recased Falcon030 with CT2, 64MB TT-RAM, 4MB ST-RAM, FreeMiNT/XaAES, EtherNEC and 40GB HDD

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christos
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Re: VERY unstable SLIP

Postby christos » Tue May 27, 2008 2:42 pm

Join the club. It seems there is something broken in the slip implementation in the MiNT kernel that stops it from working. The problem can't be found on CT60 falcons. Something that was suggested to me was to use slip.xif from 1.15.12 but this failed on my setup causing a system crash. So I will say what everyone tells me...
Get an ethernec :D

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MaLICiouS
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Re: VERY unstable SLIP

Postby MaLICiouS » Tue May 27, 2008 8:50 pm

christos wrote:Get an ethernec :D

I've been thinking about getting one for a long time. Problem is, they're quite hard to find and I don't yet have the equipment necessary to make the PCB. Would be swell to have one, though, since I already have a suitable card.
4MB 1040STe
4MB Mega/STE with FreeMiNT/XaAESm 40MB SCSI HD, 1.44M floppy
Recased Falcon030 with CT2, 64MB TT-RAM, 4MB ST-RAM, FreeMiNT/XaAES, EtherNEC and 40GB HDD


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