Re: [PATCH] coredump: Retry writes where appropriate
From: Alan Cox
Date: Sun May 31 2009 - 06:19:21 EST
On Sun, 31 May 2009 01:33:39 -0400
Paul Smith <paul@xxxxxxxxxxxxxxxxx> wrote:
> coredump: Retry writes where appropriate
> Core dump write operations (especially to a pipe) can be incomplete due
> to signal reception or possibly recoverable partial writes.
> Previously any incomplete write in the ELF core dumper caused the core
> dump to stop, giving short cores in these cases. Modify the core dumper
> to retry the write where appropriate.
The existing behaviour is an absolute godsend when you've something like
a core dump stuck on an NFS mount or something trying to core dump to
very slow media.
In fact the signals checks were *purposefully added* some time ago.
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