Messages in this thread | | | Date | Sun, 27 Sep 2015 09:37:05 +0200 | Subject | Re: [GIT PULL rcu/urgent] Fix two more 4.3 regressions | From | Sedat Dilek <> |
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On Sun, Sep 27, 2015 at 9:32 AM, Paul E. McKenney <paulmck@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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