This is the new iteration of Roland's utrace patch, this time
with rewrite-ptrace-via-utrace + cleanups in utrace core.
Tested-by: CAI Qian caiq...@redhat.com
On 12/22, Andrew Morton wrote:
On Fri, 18 Dec 2009 02:11:16 +0100
Oleg Nesterov o...@redhat.com wrote:
It allows for multiple separate tracing engines to work
in parallel without interfering with each other. Higher-level tracing
facilities can be implemented as loadable kernel modules
Well. I had a lot of technical discussions with Roland about utrace,
but I never asked him why he created this thing ;) To me, utrace
looks like vfs. Currently we have the single and very poor filesystem,
ptrace. Until we add the appropriate layer, we can't expect the
further improvements is
Do you have an estimate or better numbers how the overhead of
seccomp-over-utrace compares to the current in-tree seccomp?
I never measured it. I would estimate that any difference one way or
another is in the noise. The point of seccomp is to run a process that
almost never makes any system
On Fri, 18 Dec 2009 02:11:16 +0100
Oleg Nesterov o...@redhat.com wrote:
Hello.
This is the new iteration of Roland's utrace patch, this time
with rewrite-ptrace-via-utrace + cleanups in utrace core.
So... should we merge this?
I'll confess that I've rather forgotten why we might want
5/7 belongs first and I've already merged it as prerequisite to utrace.
We can send that upstream without delay. I hope it can get queued quickly
regardless of the review delays for the utrace and ptrace work.
All the other preparatory patches are just to introduce PT_PTRACED as the
distinction
On 10/27, Roland McGrath wrote:
5/7 belongs first and I've already merged it as prerequisite to utrace.
We can send that upstream without delay. I hope it can get queued quickly
regardless of the review delays for the utrace and ptrace work.
Agreed, I'll send it to Andrew.
All the other
On 10/26, Oleg Nesterov wrote:
For early review.
Patches 1-5 can be sent upstream right now. The last 2 patches
add the new implementation.
utrace.patch can come before or after, I think after is better.
Forgot to mention, this series is against Linus's tree.
Oleg.
