From: Abhishek Thakur (Abhishek.Thakur@synchronous.net)
Date: Wed May 16 2001 - 16:27:46 EDT
Solved - it wasn't the telnet/Ethernet, but the cache/DMA. We had overlooked to mask out memory used by DMA while enabling our cache - and things went wild after that. Platform is pretty stable after the cache has been disabled. thanks to all who responded. Abhishek > -----Original Message----- > From: Menno Schrage [mailto:Menno.Schrage@chess.nl] > Sent: Friday, May 11, 2001 12:59 AM > To: uclinux-dev@uclinux.org > Subject: Re: [uClinux-dev] problem with telnet > > > Hi , > > Can you tell me some info about the ram size on your board? > > i ask this question because i am running the NETLx on a > development board > with 16 Meg SDRAM (CONFIG_NETARM_REV2). > Without networking there is no prblem, but when i setup the > eth0 device the > system dies after a while. no panic no response with GDB etc. > NETLx just > hangs. > > I though this was a RAM issue, because the original > development board has 32 > Meg EDO RAM and the eth0 use DMA. > > Let me know how you fixed the problem ? > > Thank for reading and your Time. > > Menno > > > On Friday 11 May 2001 03:42, you wrote: > > > > Hi All, > > While this may not be the forum to raise this problem, > any pointer on > > "how to debug" this problem for uClinux (on Netsilicon > based product) would > > be appreciated. > > > > PROBLEM: The telnet comes up fine on our target, but > whenever the input > > on the command line is all spaces (or just enter - without > any charecters), > > the kernel hangs on the target. No errors/panics - nothing. > > > > E.g. - a cut and paste from the session - > > --------------------------------- > > [abhishek@Abhishek_Linux crash_study]$ telnet 10.1.2.232 > > Trying 10.1.2.232... > > Connected to 10.1.2.232 (10.1.2.232). > > Escape character is '^]'. > > uClinux command shell (version 2.0) > > > > > a a a a a > > > > a: Bad command or file name > > > > > z > > > > z: Bad command or file name > > > > > qqqqqqqqqqqqq > > > > qqqqqqqqqqqqq: Bad command or file name > > > > > Connection closed > by foreign host. > > > > ---------------------------------------^-------- > > > > Has pressed "Enter" here - but nothing > > happended for telnet client - while the target froze. The message > > "Connection closed by foreign host." came after I had done > a hardware reset > > on target. > > While this works on the NETSilicon provided developer > baords, it is > > freezing the system on our bard - and it is Consistent. > > > > Any feedback would be appreciated. Thanks for your time. > > > > regards > > Abhishek > > ---------------------------------------- > Content-Type: text/html; charset="iso-8859-1"; name="Attachment: 1" > Content-Transfer-Encoding: quoted-printable > Content-Description: > ---------------------------------------- > > -- > Menno Schrage > CHESS embedded Technology > This message resent by the uclinux-dev@uclinux.org list > server http://www.uClinux.org/ > This message resent by the uclinux-dev@uclinux.org list server http://www.uClinux.org/
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