On Sat, 27 Feb 2016, Mike Galbraith wrote: > [ 0.221225] ------------[ cut here ]------------ > [ 0.221241] WARNING: CPU: 1 PID: 69 at kernel/sched/core.c:7733 __might_sleep+0x7f/0x90() > [ 0.221253] do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff8106edc4>] rescuer_thread+0x64/0x340 > [ 0.221263] Modules linked in: > [ 0.221272] CPU: 1 PID: 69 Comm: khelper Not tainted 4.0.0-rt4-lockdep #71 > [ 0.221273] Hardware name: IBM System x3550 M3 -[7944K3G]-/69Y5698 , BIOS -[D6E150AUS-1.10]- 12/15/2010 > [ 0.221280] ffffffff81a2269f ffff8801789a7cc8 ffffffff81605182 0000000000000002 > [ 0.221282] ffff8801789a7d18 ffff8801789a7d08 ffffffff81053cda ffff8801789a7d48 > [ 0.221284] ffffffff81a23b44 0000000000000394 0000000000000000 0000000000000000 > [ 0.221284] Call Trace: > [ 0.221288] [<ffffffff81605182>] dump_stack+0x4f/0x9d > [ 0.221291] [<ffffffff81053cda>] warn_slowpath_common+0x8a/0xe0 > [ 0.221293] [<ffffffff81053d76>] warn_slowpath_fmt+0x46/0x50 > [ 0.221295] [<ffffffff8106edc4>] ? rescuer_thread+0x64/0x340 > [ 0.221296] [<ffffffff8106edc4>] ? rescuer_thread+0x64/0x340 > [ 0.221298] [<ffffffff810794ef>] __might_sleep+0x7f/0x90 > [ 0.221299] [<ffffffff8106ed60>] ? worker_thread+0x4d0/0x4d0 > [ 0.221301] [<ffffffff8160b4d4>] rt_spin_lock+0x24/0x70 > [ 0.221304] [<ffffffff8107fddd>] ? migrate_disable+0x7d/0xe0 > [ 0.221305] [<ffffffff8106ee09>] rescuer_thread+0xa9/0x340 > [ 0.221307] [<ffffffff8106ed60>] ? worker_thread+0x4d0/0x4d0 > [ 0.221308] [<ffffffff8106ed60>] ? worker_thread+0x4d0/0x4d0 > [ 0.221311] [<ffffffff81073721>] kthread+0xe1/0x100 > [ 0.221312] [<ffffffff8160b1e0>] ? _raw_spin_unlock_irq+0x30/0x70 > [ 0.221315] [<ffffffff81073640>] ? __kthread_parkme+0xa0/0xa0 > [ 0.221317] [<ffffffff8160be88>] ret_from_fork+0x58/0x90 > [ 0.221319] [<ffffffff81073640>] ? __kthread_parkme+0xa0/0xa0 > [ 0.221320] ---[ end trace 0000000000000001 ]--- Hmm. That looks wrong. Spinlocks are state preserving on RT. So I need to figure out why that thingy triggers here. Thanks, tglx -- 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
