On Wed, 2011-11-16 at 17:42 +0800, Yong Zhang wrote: > Otherwise we will get below warning: > > BUG: sleeping function called from invalid context at /build/linux/kernel/rtmutex.c:645 > in_atomic(): 1, irqs_disabled(): 1, pid: 1054, name: migration/9 > no locks held by migration/9/1054. > irq event stamp: 36 > hardirqs last enabled at (35): [<ffffffff815f5b50>] _raw_spin_unlock_irq+0x30/0x70 > hardirqs last disabled at (36): [<ffffffff810b7eaf>] stop_machine_cpu_stop+0x8f/0x110 > softirqs last enabled at (0): [<ffffffff81051b53>] copy_process+0x6d3/0x1640 > softirqs last disabled at (0): [< (null)>] (null) > Pid: 1054, comm: migration/9 Not tainted 3.2.0-rc1-rt2-11312-gbf51260-dirty #12 > Call Trace: Thomas, doesn't printk not print to serial in atomic contexts? Or did that change? -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
