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Closed 9 years ago.
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I wanted to know what exactly does happen to a packet by the time it goes to a linux kernel, until it comes out of kernel and goes as application layer.
There is a nice paper PATH OF A PACKET IN THE LINUX
KERNEL STACK(pdf), with examples and links to the kernel source code.
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Closed 1 year ago.
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Is there a way in Linux/RT-Linux to make a specific userspace thread run in a way that no system interrupt can stop it?
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Closed 2 years ago.
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I would like to know how to use grub and what it is used for. I would also like to know if I can boot freebsd and linux with grub. I have googled it but couldn't find much
grub is a bootloader that allows you to boot multiple distros and or kernels. Your motherboard should allow you to boot multiple partitions.
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Hard links cannot span physical devices. Exactly this statement I read while understanding the concept of hard link in Linux. Can anyone help me to understand this ?
A filename, is a pointer to an inode.
So if you're not on the same drive, it's impossible to link a file, because the inodes belongs to a specific disk
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Closed 7 years ago.
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How can I find out how many CPU cores is a job running on a Linux system using?
Is it somehow through the top command?
you can use ps -aF or I am guessing you are referring to htop which is a graphical tool.
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I am using Ubuntu 12.04, and I used to see #include , I want to see the implementation code of sys/stat.h. But I don not know where it is. By the way, I can not find it in /usr/include directory.
on my machine there are
/usr/include/x86_64-linux-gnu/sys/stat.h
/usr/lib/syslinux/com32/include/sys/stat.h
I think the first one is what you are looking for? it comes with gnu gcc I think