lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Fri, 28 Oct 2016 01:31:33 +0200
From:   Alexis Berlemont <alexis.berlemont@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Alexis Berlemont <alexis.berlemont@...il.com>,
        peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com
Subject: [PATCH v2] perf, x86-mm: declare page-faults tracepoints like irq-vectors ones

So, would you be OK with the following patch ? 

There is a symmetry just like irq_vectors tracepoints:

# perf list | grep -E "exception|irq_vectors"
  exceptions:page_fault_kernel_entry                 [Tracepoint event]
  exceptions:page_fault_kernel_exit                  [Tracepoint event]
  exceptions:page_fault_user_entry                   [Tracepoint event]
  exceptions:page_fault_user_exit                    [Tracepoint event]
  irq_vectors:call_function_entry                    [Tracepoint event]
  irq_vectors:call_function_exit                     [Tracepoint event]
...

Maybe 2 tracepoints (instead of 4) should have been enough; however,
there were already 1 tracepoint per mode before.

Alexis.

Alexis Berlemont (1):
  perf, x86-mm: declare page-faults tracepoints like irq-vectors ones

 arch/x86/include/asm/trace/exceptions.h | 17 ++++++++++++++++-
 arch/x86/mm/fault.c                     | 17 ++++++++++++++---
 2 files changed, 30 insertions(+), 4 deletions(-)

-- 
2.10.1

Powered by blists - more mailing lists