* Frederic Weisbecker <fweis...@gmail.com> wrote:
> Ingo,
>
> Please pull the printk support in dynticks mode patches that can
> be found at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
> tags/printk-dynticks-for-mingo-v2
>
> for you to fetch changes up to 74876a98a87a115254b3a66a14b27320b7f0acaa:
>
> printk: Wake up klogd using irq_work (2012-11-18 01:01:49 +0100)
>
> It is based on v3.7-rc4.
>
> Changes since previous pull request include support for irq
> work flush on CPU offlining and acks from Steve. The rest
> hasn't changed except some comment fix.
Since this changes kernel/printk.c it needs Linus's ack.
I looked through the older submissions but found no good summary
of these changes: it would be nice if you could write up a good
high level description of these changes - why has printk based
kernel message logging become problematic on nohz, what are the
symptoms to users, and what are the solution alternatives you
found and please justify the irq_work extension variant you
picked.
I more or less accept the fact that fixes are needed here, but
the linecount appears a bit high. It's possibly unavoidable, but
would be nice to have a discussion of it, as printk is something
we really, really want to keep as simple as possible.
Thanks,
Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
