Re: [RFC] [PATCH] To vunmap correct address in text_poke()(kprobes)

On Wed, Jul 25, 2007 at 12:21:49PM +0530, Srinivasa Ds wrote: > > When I was testing kprobes on x86_64 and I come across the below error > message > on latest 2.6.23-rc1 kernel. > == > Trying to vfree() bad address (c20002233199) > WARNING: at mm/vmal

Re: [patch 3/3] Text Edit Lock - kprobes i386

On Tue, Jul 03, 2007 at 12:38:22PM -0400, Mathieu Desnoyers wrote: > Kprobes can use the text edit lock to insure mutual exclusion when edition the > code and make sure the pages are writable. Linus suggested for splitting ro-data and ro-text; And allow ro-text only if kprobes is not configured. P

Re: [1/2] 2.6.22-rc5: known regressions with patches

On Wed, Jun 20, 2007 at 10:23:21PM -0700, Arjan van de Ven wrote: > On Wed, 2007-06-20 at 16:50 -0700, Linus Torvalds wrote: > > > > On Wed, 20 Jun 2007, Arjan van de Ven wrote: > > > > > > the real fix would be something like this instead: > > > > If people can test this, and confirm it works,

Re: [patch 2/2] kprobes x86_64 quick fix mark-ro-data

On Tue, Jun 19, 2007 at 06:44:30AM -0700, Arjan van de Ven wrote: > On Tue, 2007-06-19 at 09:30 -0400, Mathieu Desnoyers wrote: > > * Arjan van de Ven ([EMAIL PROTECTED]) wrote: > > > On Tue, 2007-06-19 at 15:38 +0530, S. P. Prasanna wrote: > > > > This patch is a

Re: [patch 2/2] kprobes x86_64 quick fix mark-ro-data

This patch is a quick fix for x86_64 to enable kprobes only if DEBUG_RODATA is not configured. Since DEBUG_RODATA markes the kernel text pages as read-only. Signed-off-by: Prasanna S P. <[EMAIL PROTECTED]> arch/x86_64/Kconfig |6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff

Re: [patch 1/2] kprobes i386 quick fix mark-ro-data

On Mon, Jun 18, 2007 at 09:32:56PM +0200, Andi Kleen wrote: > On Monday 18 June 2007 20:56:32 Andrew Morton wrote: > > On Mon, 18 Jun 2007 14:44:57 -0400 > > Chuck Ebbert <[EMAIL PROTECTED]> wrote: > > > > > > I fancy it's done by the kprobe_page_fault handler, but I do not see > > > > clearly how

Re: [2.6 patch] include/linux/kprobes.h: always offer show_registers() prototype

On Mon, Jun 18, 2007 at 01:43:04AM +0200, Adrian Bunk wrote: > Allow gcc to perform show_registers() type checking also with > CONFIG_KPROBES=n. > Adrian, Please implement it as Andrew suggested, when this was patch was posted eariler. Refer this discussion thread below. http://lkml.org/lkml/2

Re: [PATCH] Kprobes x86_64 fix for mark ro data

This patch fixes the problem of page protection introduced by CONFIG_DEBUG_RODATA for x86_64 architecture. As per Andi Kleen's suggestion, the kernel text pages are marked writeable only for a short duration to insert or remove the breakpoints. Signed-off-by: Prasanna S P<[EMAIL PROTECTED]> Ack-e

Re: [PATCH] Kprobes i386 fix for mark ro data

On Thu, Jun 07, 2007 at 11:12:32AM +1200, Ian McDonald wrote: > On 6/7/07, Chuck Ebbert <[EMAIL PROTECTED]> wrote: > >On 06/06/2007 04:47 PM, Ian McDonald wrote: > >> Hi there, > >> > >> We've seen a report of a problem with dccp_probe as shown below. The > >> user has also verified that it occurs

Re: [PATCH] Kwatch: kernel watchpoints using CPU debug registers

On Wed, Feb 21, 2007 at 03:35:13PM -0500, Alan Stern wrote: > Going back to something you mentioned earlier... > [...] > On Fri, 9 Feb 2007, Roland McGrath wrote: > There are two things I am uncertain about: vm86 mode and kprobes. I don't > know anything about how either of them works. Judging f

Re: [PATCH 0/4 update] kprobes and traps

On Tue, Jan 16, 2007 at 04:27:40PM -0500, Mathieu Desnoyers wrote: > Hi, > > I have looked at kprobes code and have some questions for you. I would really > like to use it to patch dynamically my marker immediate value by doing code > patching. Using an int3 seems like the right way to handle this

Re: Kwatch patch available for 2.6.20?

On Sun, Jan 07, 2007 at 01:00:08PM -0500, Alan Stern wrote: > Has the kwatch patch (hardware watchpooint debugging for x86) been updated > to the current kernel? Is it available anywhere? Hi Alan, On Sun, Jan 07, 200