linux.kernel Google Group

Re: latent problem in free_init_pages()

ar...@linux.intel.com (Arjan van de Ven) — Fri, 19 Mar 2010 14:10:02 UT

if you change the linker script to move the section, you should also move it to
keep the end page aligned.
solving that at link time (like is done now) is obviously nicer than solving it at runtime ;-)

Re: [PATCH] Netfilter: Remove unused headers in net/ipv6/netfilter/ip6t_LOG.c

ka...@trash.net (Patrick McHardy) — Fri, 19 Mar 2010 14:10:02 UT

Agreed, if you plan on sending more of these patches I'd prefer a combined
patch too.

[PATCH 19/19] Staging: comedi: fix brace coding style issue in adl_pci9118.c

mauricedawson2...@googlemail.com (Maurice Dawson) — Fri, 19 Mar 2010 14:00:02 UT

This is a patch to the adl_pci9118.c file that fixes up all brace warnings found by the checkpatch.pl tool
Signed-off-by: Maurice Dawson <mauricedawson2...@googlemail. com>
---
drivers/staging/comedi/drivers /adl_pci9118.c | 62 ++++++++++++--------------
1 files changed, 28 insertions(+), 34 deletions(-)

Re: [PATCH] tree/tiny rcu: Add debug RCU head option (v2)

mathieu.desnoy...@efficios.com (Mathieu Desnoyers) — Fri, 19 Mar 2010 14:00:02 UT

Hrm.. looking into the port to debugobjects, there are a few things that are not
precisely well set at the moment for it:
- We need to have two distinct active states, with a check that we move between
the two. This does not seem to be currently supported by debugobjects.
- RCU heads are never explicitely freed. So yeah, that means we will have to

Re: [PATCH -tip v5] tracepoint: Add signal coredump tracepoint

o...@redhat.com (Oleg Nesterov) — Fri, 19 Mar 2010 13:40:01 UT

(add Neil)
Oh.
Masami, may I ask you to delay these changes a bit?
This patch conflicts very much with other changes (hopefully in -mm soon)
we are doing.
If your patch comes first, we have to redo 12 patches. Besides, this patch
complicates do_coredump() even more while it really needs the cleanups.

Re: [PATCH] Fix a typo in sound/pci/hda/hda_local.h

justinmatt...@gmail.com (Justin P. mattock) — Fri, 19 Mar 2010 13:30:02 UT

ahh.. so it is pin
your welcome.
Justin P. Mattock

Re: Linux Checkpoint-Restart - v19

j...@dependable-os.net (Jiro SEKIBA) — Fri, 19 Mar 2010 13:20:03 UT

Hi,
OK, I've checked differences of dmesg when self_restart does well and doesn't.
When it goes well, the filename is /tmp/cr-self.out
[ 401.522556] [2307:2307:c/r:ckpt_read_fname :571] read filename '/tmp/cr-self.out'
[ 401.522558] [2307:2307:c/r:restore_open_fn ame:594] fname '/tmp/cr-self.out' flags 0x2

Re: [PATCH] fixed sparkling issue on lcd panel when fb_blank mode is changed.

rpur...@rpsys.net (Richard Purdie) — Fri, 19 Mar 2010 13:20:02 UT

Hi,
So to summarise the problem more succinctly the LCD and the display
controllers power off in the wrong order causing visual defects
(sparkling) on the display.
I was a bit worried about event order and loops with this change so I
checked and there are three consumers of these events in the kernel:

[PATCH -tip v5] tracepoint: Add signal coredump tracepoint

mhira...@redhat.com (Masami Hiramatsu) — Fri, 19 Mar 2010 13:20:02 UT

Add signal coredump tracepoint which shows signal number,
mm->flags, core file size limitation, the result of
coredump, and core file name.
This tracepoint requirement comes mainly from the viewpoint of
administrators. Since now we have introduced many coredump
configurations (e.g. dumpable, coredump_filter, core_pattern,

Re: [PATCH] move tty_kref_put() outside of __cleanup_signal()

o...@redhat.com (Oleg Nesterov) — Fri, 19 Mar 2010 13:20:03 UT

I think signal->tty should be freed (and nullified under ->siglock) when the
last thread exits.
The goal is to make ->signal immutable, so that it would be always safe to
dereference task->signal if you have a reference to task_struct. But I don't
think get_task_struct() should defer tty_kref_put(), and besides put_task_struct()

Can not boot with CONFIG_NO_BOOTMEM=y on i686

sgrus...@redhat.com (Stanislaw Gruszka) — Fri, 19 Mar 2010 13:20:01 UT

Hello.
After update to 2.6.34-rc1, I was experimented by strange oopses during
boot, what looked like memory corruption. Bisection shows that first bad
commit is 59be5a8e8ce765cf739ec7f0717621 9972de7481 ("x86: Make 32bit
support NO_BOOTMEM"). When I disable CONFIG_NO_BOOTMEM I'm able to start
system. Not sure what info is need to track down this issue, so please

Re: [RFC] Unify KVM kernel-space and user-space code into a single project

anth...@codemonkey.ws (Anthony Liguori) — Fri, 19 Mar 2010 13:10:02 UT

If you want to improve this, you need to do the following:
1) Add a userspace daemon that uses vmchannel that runs in the guest and
can fetch kallsyms and arbitrary modules. If that daemon lives in
tools/perf, that's fine.
2) Add a QMP interface in qemu to interact with such daemon
3) Add a default QMP port in a well known location[1]

Re: [PATCH] tree/tiny rcu: Add debug RCU head option (v2)

mathieu.desnoy...@efficios.com (Mathieu Desnoyers) — Fri, 19 Mar 2010 13:00:02 UT

Yep, that hurts. I think we'll have to move to debugobjects more quickly than
expected.
Thanks,
Matheiu

Re: [PATCH RFC 00/11] lock monitor: Separate features related to lock

mathieu.desnoy...@efficios.com (Mathieu Desnoyers) — Fri, 19 Mar 2010 13:00:01 UT

Even without the static jump patching, the compiler takes care of putting the
stack setup after the branch is checked. That worked with a standard test on a
variable, with immediate values and should still work with asm gotos.
I already did some presentations around these question. You can refer to my OLS

Re: [PATCH] tree/tiny rcu: Add debug RCU head option (v2)

c...@linux-foundation.org (Christoph Lameter) — Fri, 19 Mar 2010 12:40:01 UT

Right. I like the smallness of the RCU structure but if you must
increase its size then we could:
A) put the rcu structure at the end of each page like SLOB
but that will take away memory that could be used by objects.
B) Move the rcu object up by a word so that it overloads the index field
in the page struct. That would give another exact fit but will cause