>On Thu, Sep 29, 2005 at 08:43:44AM +0800, Zhang, Yanmin wrote:
>> <<kprobe_incorrect_kprobe_mutex_2.6.14-rc2_x86_64.patch>> I found it
>> when reading the source codes. Basically, the bug could break
>> kprobe_insn_pages under multi-thread environment. PPC arch also has the
>> problem.
>Can you describe what the problem actually is?
Andi,
The up()/down() orders are incorrect in arch/x86_64/kprobes.c file while
trying to get/remove a kprobes instruction slot in arch_prepare_kprobe()
and arch_remove_kprobe() routines. Zhang's patch corrects this.
Thanks
Prasanna
--
Prasanna S Panchamukhi
Linux Technology Center
India Software Labs, IBM Bangalore
Ph: 91-80-25044636
<[email protected]>
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