diff options
| author | Daniel Wagner <wagi@monom.org> | 2015-02-17 09:37:44 +0100 |
|---|---|---|
| committer | Anders Roxell <anders.roxell@linaro.org> | 2015-06-01 12:03:37 +0200 |
| commit | 2ed6f9ed786f5492c5813f98a8e37241f5c57777 (patch) | |
| tree | 28e60f3a3c822d4ef4bfb8443d50d6bf6af5aa2d /lib/locking-selftest.c | |
| parent | 2a48b7a55e80abcb26a7e0f37437199fa7733186 (diff) | |
thermal: Defer thermal wakups to threads
On RT the spin lock in pkg_temp_thermal_platfrom_thermal_notify will
call schedule while we run in irq context.
[<ffffffff816850ac>] dump_stack+0x4e/0x8f
[<ffffffff81680f7d>] __schedule_bug+0xa6/0xb4
[<ffffffff816896b4>] __schedule+0x5b4/0x700
[<ffffffff8168982a>] schedule+0x2a/0x90
[<ffffffff8168a8b5>] rt_spin_lock_slowlock+0xe5/0x2d0
[<ffffffff8168afd5>] rt_spin_lock+0x25/0x30
[<ffffffffa03a7b75>] pkg_temp_thermal_platform_thermal_notify+0x45/0x134 [x86_pkg_temp_thermal]
[<ffffffff8103d4db>] ? therm_throt_process+0x1b/0x160
[<ffffffff8103d831>] intel_thermal_interrupt+0x211/0x250
[<ffffffff8103d8c1>] smp_thermal_interrupt+0x21/0x40
[<ffffffff8169415d>] thermal_interrupt+0x6d/0x80
Let's defer the work to a kthread.
Cc: stable-rt@vger.kernel.org
Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
[bigeasy: reoder init/denit position. TODO: flush swork on exit]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Diffstat (limited to 'lib/locking-selftest.c')
0 files changed, 0 insertions, 0 deletions