Re: [PATCH] ACPI / HOTPLUG: fix device->physical_node_lock deadlock

2015-04-07 Thread Rafael J. Wysocki
On Tuesday, April 07, 2015 01:22:52 PM Rafael J. Wysocki wrote: > On Tuesday, April 07, 2015 05:03:12 PM Xie XiuQi wrote: > > I meet a deadlock during cpu hotplug. The code path is bellow: > > > > Call Trace: > > [] dump_stack+0x19/0x1b > > [] validate_chain.isra.43+0xf4a/0x1120 > > [] ? sched_

Re: [PATCH] ACPI / HOTPLUG: fix device->physical_node_lock deadlock

2015-04-07 Thread Rafael J. Wysocki
On Tuesday, April 07, 2015 05:03:12 PM Xie XiuQi wrote: > I meet a deadlock during cpu hotplug. The code path is bellow: > > Call Trace: > [] dump_stack+0x19/0x1b > [] validate_chain.isra.43+0xf4a/0x1120 > [] ? sched_clock+0x9/0x10 > [] ? sched_clock_local+0x1d/0x80 > [] ? sched_clock_cpu+0xa

[PATCH] ACPI / HOTPLUG: fix device->physical_node_lock deadlock

2015-04-07 Thread Xie XiuQi
I meet a deadlock during cpu hotplug. The code path is bellow: Call Trace: [] dump_stack+0x19/0x1b [] validate_chain.isra.43+0xf4a/0x1120 [] ? sched_clock+0x9/0x10 [] ? sched_clock_local+0x1d/0x80 [] ? sched_clock_cpu+0xa8/0x100 [] __lock_acquire+0x3c6/0xb70 [] ? sched_clock_cpu+0xa8/0x100