Re: Linux 2.6.23-rc9 and a heads-up for the 2.6.24 series..
- From: Mel Gorman <mel@xxxxxxxxx>
- Date: Tue, 02 Oct 2007 13:07:38 +0100
On Mon, 2007-10-01 at 20:41 -0700, Linus Torvalds wrote:
I said I was hoping that -rc8 was the last -rc, and I hate doing this, but
we've had more changes since -rc8 than we had in -rc8. And while most of
them are pretty trivial, I really couldn't face doing a 2.6.23 release and
take the risk of some really stupid brown-paper-bag thing.
Dirt. Booting with "profile=sleep,2" is broken in 2.6.23-rc9 and
2.6.23-rc8 but working in 2.6.22. I was checking it out as part of a
discussion in another thread and noticed it broken in -mm as well
(2.6.23-rc8-mm2). Bisect is in progress but suggestions as to the prime
candidates are welcome or preferably, pointing out that I'm an idiot
because I missed twiddling some config change.
2.6.22 output
gringo:~# readprofile | sort -rn
69604 total 0.0309
27287 m_start 243.6339
16430 sync_page 205.3750
13161 sync_buffer 205.6406
4035 sys_init_module 0.6121
2842 msleep 88.8125
2573 call_usermodehelper_keys 10.7208
1554 ps2_sendbyte 6.0703
803 log_wait_commit 2.7882
378 do_lookup 0.9844
160 do_get_write_access 0.1111
89 synchronize_rcu 1.3906
76 ps2_command 0.0792
66 ide_do_drive_cmd 0.2292
59 do_fork 0.1085
54 congestion_wait 0.3750
29 __rtnl_unlock 1.8125
4 kthread 0.0357
2 *unknown*
2 journal_stop 0.0038
1 kthreadd 0.0035
1 kthread_create 0.0063
latest git output
gringo:~# readprofile
0 *unknown*
0 total 0.0000
I checked the obvious stuff like DEBUG options being set,
CONFIG_PROFILING being set etc.
So there's a final -rc out there, and right now my plan is to make this
series really short, and release 2.6.23 in a few days. So please do give
it a last good testing, and holler about any issues you find!
This is also a good time to warn about the fact that we're doing the x86
merge very soon (as in the next day or two) after 2.6.23 is out, so if you
have pending patches for the next series that touch arch/i386 or x86-64,
you should get in touch with Thomas Gleixner and Ingo Molnar, who are the
keepers of the merge scripts, and will help you prepare..
Doing it as early as possible in the 2.6.24-rc4 series (basically I'll do
it first thing) will mean that we'll have the maximum amount of time to
sort out any issues, and the thing is, Thomas and Ingo already have a tree
ready to go, so people can check their work against that, and don't need
to think that they have to do any fixups after it his *my* tree. It would
be much better if everybody was just ready for it, and not taken by
surprise.
In other words, people who know they may be affected and would want to
prepare can look at (for example)
git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86.git x86
and generally get ready for the switch-over.
Linus
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