Messages in this thread | | | Date | Tue, 18 Apr 2006 15:23:01 +0800 | From | "Liu haixiang" <> | Subject | Question on Schedule and Preemption |
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Hi All,
Now I am developing the driver on Linux kernel 2.6.11. And I met the problem that kernel will dump my stack from time to time. And the kernel log will give me messages like "scheduling while atomic: ...".
Then I found the code in sched.c:
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(); } }
Anybody can explain above code for me?
Thanks
best regards
Haixiang Liu - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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