On 06.06.2011 19:11, Ingo Molnar wrote:
* Peter Zijlstra<peterz@xxxxxxxxxxxxx> wrote:
+void printk_tick(void) +{ + if (!__this_cpu_read(printk_pending)) + return; + + /* + * Try to acquire and then immediately release the + * console semaphore. The release will do all the + * actual magic (print out buffers, wake up klogd, + * etc). + */ + if (console_trylock_for_printk(smp_processor_id())) { + console_unlock(); + __this_cpu_write(printk_pending, 0); + } +}Arne does this fix the hang you are seeing?
What do you want me to test? just replace printk_tick with the above version? If I do that, the machine doesn't even boot up any more. -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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