Ubuntu: Why does compiling the Linux kernel cause Ubuntu to freeze?


I need help figuring out how compiling the Linux kernel causes Ubuntu to freeze.

I'm trying to cross-compile the Linux kernel for the ZedBoard. It is a Zynq-7000 ARM architecture. When I compile, it gets down to a journal.o file and the entire system freezes and I have to restart. Xilinx/ZedBoard has no idea, so maybe somebody else does. Let me know what other information you need.


I have the same issue when compiling the kernel for zynq. This is what I used: make -j ARCH=arm UIMAGE_LOADADDR=0x8000 uImage

Now I change it into: make ARCH=arm

and it compiles and creates the Image and zImage in the \arch\arm\boot\



If you look at the man page for make with $ man make, it explains a little more. The -j flag, when followed by a number, restricts the number of processes running at one time to whatever you put. However, if -j is not followed by a number, the number of threads is not limited. I think since it was executing so many threads at one time, it hosed things up. As soon as I used make ARCH=arm UIMAGE_LOADADDR=0x8000 CROSS_COMPILE=arm-xilinx-linux-gnueabi- uImage, everything worked; granted, it was slow, but it worked. Perhaps you could add a -j 10 or something to make things run a little faster without overloading the OS.

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