4
votes
1answer
224 views

How do I load initrd into memory to be passed to kernel when using kexec?

As the MIPS port of kexec doesn't support the --initrd param, I'm looking for workarounds to imitate the feature. According to Linux/MIPS wiki, MIPS kernels support rd_start and rd_size kernel command ...
3
votes
1answer
115 views

Does any OS support ZFS on MIPS?

Does there exist an operating system supporting ZFS under the MIPS architecture? If so, which operating system(s)? I am especially interested in: Support for ZFS on Loongson. OSes free from binary ...
1
vote
0answers
225 views

How to compile and install iperf on a MIPS based router?

I have a DIR-825 router based on Atheros AR7161 (MIPS) running DD-WRT v24-sp2 std. How can I compile and install iperf on it? Can I compile it directly on the target device, or do I have to cross ...
1
vote
2answers
255 views

Running the linux kernel and Ubuntu on custom processor

This is hardly a theoretical question as many have done this, albeit there's very little information on the underlying processes. I'm developing a custom MIPS-based processor on which I would like to ...
2
votes
1answer
266 views

What is the connection between jiffies and IPS? How to convert jiffies to IPS?

Reading from /proc/PID/stat a lot of information can be processed. I would like to see how many percentages has been used of CPU power by this process. There are a lot of variable around here (utime, ...
11
votes
2answers
3k views

How do I have Linux boot with a rootfs in RAM?

The rootfs is a squashfs image and my bootloader is loading it into some address in SDRAM. What parameters do I need to pass to the kernel so It can mount the rootfs from there? Squashfs support is ...
3
votes
1answer
3k views

How to understand the kernel panic core dump output?

This is the output I get when I run one of my applications: Kernel bug detected[#1]: Cpu 0 $ 0 : 00000000 00000000 0fffff00 0fffff00 $ 4 : c6800000 850b7780 8b0043c0 00000040 $ 8 : 000004ac ...