Hi All,
Now I am developing drivers on Linux 2.6.
My problem is that from time to time, I will get log meesage from
kernel: "scheduling while atomic ..." and the stack will be dumped by
the kernel.
Then I investigate the code in sched.c but don't understand. Anybody
can clarify this piece of code for me?
if (likely(!current->exit_state)) {
if (unlikely(in_atomic())) {
printk(KERN_ERR "scheduling while atomic: "
"%s/0x%08x/%d\n",
current->comm, preempt_count(), current->pid);
dump_stack();
}
}
Thanks a lot
Haixiang
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