Messages in this thread | | | Date | Wed, 26 Aug 2009 13:10:18 -0400 | From | Mathieu Desnoyers <> | Subject | Re: [PATCH 08/12] add trace events for each syscall entry/exit |
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* Peter Zijlstra (peterz@infradead.org) 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
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