Re: [PATCH 08/12] add trace events for each syscall entry/exit

[Mathieu Desnoyers]

* Peter Zijlstra (peterz@xxxxxxxxxxxxx) wrote:
> On Tue, 2009-08-25 at 14:31 -0400, Mathieu Desnoyers wrote:
> > For instance, some
> > proprietary Linux driver does very odd things with system calls within
> > kernel threads, like invoking them with int 0x80.
> 
> So who is going to send the x86 patch to make int 0x80 from kernel space
> panic the machine? :-)

I'm pretty sure ATI or Nvidia already cooked something like this in the
past. Let's not bother too much with the proprietary aspect. Tracing
internal kernel invocations of sys_*() is actually the main point I was
trying to come to.

Mathieu

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/