Linux - Embedded & Single-board computerThis forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
i have the following custom board:
Freescale ColdFire MCF5307
4MB Flash, with 2.6.36 main line kernel
dm9000e ethernet chip.
I succesfully slightly modified the dm9000.c driver to work with this big endian cpu, ping (in and out) and telnet server are working fine now.
My issue now is that, once launched httpd with a simple index page, refreshing continuosly the page from a browser cause a kind of kernel trap error:
Seems some splinlock issue, issued from inside the dm9000_interrupt routine, the kernel then continue to work, the packet sending also seems to works still, but the network packet receiving is not working anymore. Looking with an oscilloscope, the interrupt signal receving packet is still issued from the dm9000 chip, the /proc/interrupts is showing that the interrupt count still increasing, but the kernel seems not handling it anymore.
I tried to get some help in the kernel mailing list, but there is too much patch/development jub there and i couldn't get any help.