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Re: using dev_coredumpv

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On Mon, 2015-09-07 at 11:47 +0200, Arend van Spriel wrote:
> Hi Johannes,
> 
> I am looking at devcoredump subsystem and I was wondering about the
> lifetime of the devcd folder. With dev_coredumpm() the description says:
> "If a previous one hasn't been read yet, the new coredump is
> discarded.". I am wondering what "read" means here. For testing I call
> dev_coredumpv() every second, but when I hexdump the data file it does
> not create a new devcd folder. That only occurs after 5 minutes. Is that
> expected?

I suppose "read" should say "discarded by userspace", but I always
assumed userspace would read the file and then discard the coredump by
writing (anything iirc) to the file.

IOW - yes, this is expected, you should write to the data file which
makes it (and the folder) disappear and allows creating a new one.

johannes
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