On Sun, Sep 27, 2015 at 9:32 AM, Paul E. McKenney
<paul...@linux.vnet.ibm.com> wrote:
> On Sun, Sep 27, 2015 at 08:28:39AM +0200, Sedat Dilek wrote:
>> Hi,
>>
>> as I have observed here some lockdep issues (one could be solved in
>> netdev) I wanted to try this patchset.
>>
>> Unfortunately, you cannot pull from...
>>
>> "These changes are available in the git repository at:
>>
>>   git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git 
>> for-mingo
>>
>> for you to fetch changes up to 19a5ecde086a6a5287978b12ae948fa691b197b7:
>>
>>   rcu: Suppress lockdep false positive for rcp->exp_funnel_mutex
>> (2015-09-20 21:01:22 -0700)
>>
>> ----------------------------------------------------------------
>> Oleg Nesterov (1):
>>       rcu: Change _wait_rcu_gp() to work around GCC bug 67055
>>
>> Paul E. McKenney (1):
>>       rcu: Suppress lockdep false positive for rcp->exp_funnel_mutex
>>
>>  include/linux/rcupdate.h | 11 +++++------
>>  kernel/rcu/tree.c        |  5 +++++
>>  2 files changed, 10 insertions(+), 6 deletions(-)"
>>
>> So, I have stolen them from linux-next.git.
>>
>> Please look at this, Thanks.
>
> Does it work better now?  (Forgot to actually push the new name...)
>

Hi Paul,

now for-mingo Git branch has this two fixes.
I just booted into my new kernel with the "stolen" rcu.fixes from -next.

For the lockdep problems I will do a CONFIG_DEBUG_LOCKDEP=y to see if
I get some more infos on the workqueue trouble.

[   23.874836] BUG: sleeping function called from invalid context at
kernel/workqueue.c:2678
[   23.874902] in_atomic(): 0, irqs_disabled(): 1, pid: 1411, name: acpid

$ grep LOCKDEP /boot/config-4.3.0-rc2-438.1-llvmlinux-amd64
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_LOCKDEP=y
# CONFIG_DEBUG_LOCKDEP is not set

So, CLANG is a bit different compiler :-).

Thanks for taking care.

Regards,
- Sedat -

>>
>> [1] http://marc.info/?l=linux-kernel&m=144332758307978&w=2
>> [2] 
>> http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/patch/?id=66e8c57da6bf6b847a48a5a6fda59512f733ed78
>> [3] 
>> http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/patch/?id=19a5ecde086a6a5287978b12ae948fa691b197b7
>>
>
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