printk is a function that prints messages and is used in the C Programming Language exclusively for the Linux Kernel. It accepts a string parameter called the format string, which specifies a method for rendering an arbitrary number of varied data type parameter(s) into a string. The string is then printed to the kernel log.
Questions tagged [printk]
94 questions
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Printk not printing in spite of properly set loglevel
my problem is, I am trying to build a driver into the kernel. I decided to test my code with a simple Hello World program. The code looks like:
#include
#include
#include
#include…
Rai
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printk in tcp_cubic.c
I have included the following printk statement in tcp_cubic.c
static u32 bictcp_recalc_ssthresh(struct sock *sk)
{
..
if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence)
ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE +…
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1 answer
where to add printk.time ?
This is a very simple question yet I have little knowledge in Linux and starting to build it .
I am trying to debug the kernel using printk times. I am following this website: http://elinux.org/Printk_Times and in the middle it says to use it: "When…
Louis
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printk messages don't appear if module loaded during boot
I have added some printk(KERN_ALERT "sample\n"); into a driver module. These prints appear if i manually insmod the driver. But if the same driver is loaded during boot, the messages do not appear.
I am sure that the same module is loaded during…
rohith_kugve
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