On Mon, 2008-08-11 at 08:59 +0800, Huang Ying wrote:
On Fri, 2008-08-08 at 12:13 +0200, Peter Zijlstra wrote:
On Fri, 2008-08-08 at 14:52 +0800, Huang Ying wrote:
Replace local_irq_disable() with raw_local_irq_disable() to prevent
lockdep complain.
Uhhm, please provide more information
On Mon, 2008-08-11 at 08:09 +0200, Peter Zijlstra wrote:
On Mon, 2008-08-11 at 08:59 +0800, Huang Ying wrote:
On Fri, 2008-08-08 at 12:13 +0200, Peter Zijlstra wrote:
On Fri, 2008-08-08 at 14:52 +0800, Huang Ying wrote:
Replace local_irq_disable() with raw_local_irq_disable() to prevent
On Mon, 11 Aug 2008, Huang Ying wrote:
Hi, Steven,
On Fri, 2008-08-08 at 10:30 -0400, Steven Rostedt wrote:
[...]
The only problem with this approach is what happens if the user changes
the enabled in between these two calls. This would make ftrace
inconsistent.
I have a patch
On Mon, Aug 11, 2008 at 09:22:21AM +0800, Huang Ying wrote:
Hi, Steven,
On Fri, 2008-08-08 at 10:30 -0400, Steven Rostedt wrote:
[...]
The only problem with this approach is what happens if the user changes
the enabled in between these two calls. This would make ftrace
inconsistent.
Add guide to using the kexec and kdump facility in xen.
Signed-off-by: Simon Horman [EMAIL PROTECTED]
---
I the work on this document using an ia64 machine and qemu emulating x86_32.
I am yet to verify it on x86_32 hardware or x86_64.
Index: xen-unstable.hg/docs/misc/kexec_and_kdump.txt
Hi, Vivek,
On Mon, 2008-08-11 at 09:51 -0400, Vivek Goyal wrote:
[...]
So you want to use a non-locked version from optimization point of view?
So that we don't end up taking and release a lock?
Not from optimization point of view. machine_kexec() may be called from
crash_kexec(), where it is
Hi Subrata,
From: Subrata Modak [EMAIL PROTECTED]
Subject: Re: [LTP] [RFC] [KDUMP] [PROPOSED WORK] kdump on Xen hypervisor and
guests, more tests for utilities, like makedumpfile, mkdumprd, kexec etc
Date: Mon, 11 Aug 2008 19:02:47 +0530
Cai,
Any headway in this front ?
I have all test
Move if (kexec_image-preserve_context) { ... } into #ifdef
CONFIG_KEXEC_JUMP to make code looks cleaner.
Fix no longer correct comments of kernel_kexec().
Signed-off-by: Huang Ying [EMAIL PROTECTED]
Acked-by: Vivek Goyal [EMAIL PROTECTED]
---
kernel/kexec.c | 17 -
1 file
Ftrace depends on some processor state that we destroyed during kexec
and restored by restore_processor_state(). So save_processor_state()
and restore_processor_state() are moved into machine_kexec() and
ftrace is restored after restore_processor_state().
Signed-off-by: Huang Ying [EMAIL
Hi,
This patchset fixes some issues of kexec jump for 2.6.27.
It is based on 2.6.27-rc2 and has been tested on i386 platform.
ChangeLog:
v3:
- Merge added file vmlinux_check_32.lds.S into vmlinux_32.lds.S.
- Add comments about lock for ftrace code.
v2:
- Check control code size at link
Add __ftrace_enabled_save/restore, used to disable ftrace for a
while. Now, this is used by kexec jump, which need a version without
lock, for general situation, a locked version should be used.
Signed-off-by: Huang Ying [EMAIL PROTECTED]
---
include/linux/ftrace.h | 21 +
Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because
control page is used for not only code on some platform. For example
in kexec jump, it is used for data and stack too.
Signed-off-by: Huang Ying [EMAIL PROTECTED]
---
arch/arm/include/asm/kexec.h |2 +-
Call kernel_restart_prepare() in kernel_kexec() instead of duplicating
the code.
Signed-off-by: Huang Ying [EMAIL PROTECTED]
Acked-by: Pavel Machek [EMAIL PROTECTED]
Acked-by: Vivek Goyal [EMAIL PROTECTED]
---
include/linux/reboot.h |1 +
kernel/kexec.c |6 +-
kernel/sys.c
Add device_pm_lock() and device_pm_unlock() in kernel_kexec() in sync
with current hibernation implementation.
Signed-off-by: Huang Ying [EMAIL PROTECTED]
---
kernel/kexec.c |2 ++
1 file changed, 2 insertions(+)
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1457,6 +1457,7 @@ int
Kexec/Kexec-jump require code size in control page is less than
PAGE_SIZE/2. This patch add link-time checking for this.
ASSERT() of ld link script is used as the link-time checking
mechanism.
Signed-off-by: Huang Ying [EMAIL PROTECTED]
---
arch/x86/kernel/machine_kexec_32.c |2 +-
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