Re: [ANNOUNCE] 3.18.7-rt2
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: 2015-02-26 10:53:10
Also in:
lkml
* Mike Galbraith | 2015-02-26 09:02:05 [+0100]:
I found what was breaking my core2 lappy in 4.0-rt as well, namely the
4.0-rt? So you are a time traveler?
locking, ww_mutex: fix ww_mutex vs self-deadlock If the caller already holds the mutex, task_blocks_on_rt_mutex() returns -EDEADLK, we proceed directly to rt_mutex_handle_deadlock() where it's instant game over.
The EDDEADLK / ELREADY seem to got broken duering the rtmutex rework.
Now I see:
| Wound/wait tests |
---------------------
ww api failures: ok | ok | ok |
ww contexts mixing: ok | ok |
finishing ww context: ok | ok | ok | ok |
locking mismatches: ok | ok | ok |
EDEADLK handling: ok | ok | ok | ok | ok | ok | ok | ok | ok | ok |
spinlock nest unlocked: ok |
with no backtrace from the ww code which I haven't seen before that
patch. Applied.
Sebastian