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    SubjectRe: [PATCH] exec: Make do_coredump more robust and safer when using pipes in core_pattern
    On Wed, Jul 29, 2009 at 04:13:02PM +0100, Scott James Remnant wrote:
    > On Mon, 2009-06-22 at 13:28 -0400, Neil Horman wrote:
    >
    > > 2) Allow for the kernel to wait for a core_pattern process to complete. One of
    > > the things core_pattern processes might do is interrogate the status of a
    > > crashing process via its /proc/pid directory. To ensure that that directory is
    > > not removed prematurely, we wait for the process to exit prior to cleaning it
    > > up.
    > >
    > Would this mean that the kernel would wait for the pattern process to
    > complete before PANIC in the case of init core dumping?
    >
    > I'd find that useful :-)
    >
    Not without additional work. If init crashed in the initramfs, I don't think
    theres a way to handle that. If it crashes at some later time, I think it just
    gets restarted IIRC. I'm sure you can change that behavior, but this patch
    doesn't address that.

    If you want to debug a custom init process, why not run a wrapper program as
    init, that just forks the init you want to run and captures the core when it
    crashes?
    Neil

    > Scott
    > --
    > Scott James Remnant
    > scott@canonical.com




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