Y.Nishimura , It looks like the patch was not included in your email. I would appreciate seeing it and evaluating if it is something we should include in the stock kernel.
- kumar On May 14, 2004, at 1:54 PM, Yuji Nishimura wrote: > > Helo Stefan, > > I evaluated MPC8540ADS and found out similar problem few weeks ago. I > made tiny patch and it works well. > I also evaluated with NEC ehci pci device. The result was fine. > I wrote 1GB data to external usb-2.0 HDD via USB-2.0(ehci), that works > well. > I also try to use ftp(MPC8540=server) and transfer (R/W) 2047MB data > via > TSEC(gianfar) and it also works well. > If you try to use this patch, please let me know. I think patch > requires > more evaluation... > > Best Regards, > Y.Nishimura - Tokyo, Japan. > > > > Stefan Nickl wrote: > >> Hello, >> >> since the linuxppc-2.4 port to our custom 8540 board >> has made some progress now, I went back to the ADS >> board for some cross-checking. >> >> I've experienced several reproducible lockups that >> are triggered by heavy IO and/or networking. >> >> Kernel is vanilla linuxppc-2.4.27-pre2, gcc 3.2.3, >> root=/dev/nfs (Gentoo -Os -mcpu=603e) >> >> 1) Using netcat to write data over tcp: >> cat /dev/zero | nc lucy 3000 >> >> "lucy" is running "nc -l -p 3000 |pipeworks > /dev/null" >> This freezes the ADS after a few seconds. >> >> 2) Writing to the nfsroot server: >> cat /dev/urandom > /test >> >> The same. Reading seems ok. >> >> 3) Writing to a USB2.0 HDD connected via PCI >> interface board (OHCI compatible). >> >> Lockup after ~70MB of writing >> >> I haven't tested explicitly, but the kernel that >> was shipped with the board (some 2.4.20?) didn't >> seem to have such problems. >> >> Any ideas? >> >> -- >> Stefan Nickl >> Kontron Modular Computers >> >> >> > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
