Re: [RFC] [Patch 0/21] Non disruptive application core dumpinfrastructure

[Suzuki K. Poulose]

On Tue, 14 Dec 2010 12:54:05 +0200
Alexey Dobriyan <adobriyan@xxxxxxxxx> wrote:

> On Tue, Dec 14, 2010 at 03:22:59PM +0530, Suzuki K. Poulose wrote:
> > The interface is provided by a /proc/pid/core file, reading which can give the 
> 
> What happens when process opens /proc/self/core ?
The current thread will be skipped for freeze(), and all the others will be 
frozen.We fill in the register states with 0's for the active threads.

> What happens when process opens /proc/self/core and coredumps before close(2).

Thanks for pointing this out. With the current code, this causes a hang for the
 current process, waiting for the other threads to clear. I will think about 
a solution to this making use of the mm->core_state information.


Thanks a lot for the review.

Suzuki
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