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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