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SubjectRe: [PATCH 0/2] Allow crash dumps with crash_kexec_post_notifiers
On Wed, 13 Jul 2016 14:19:50 +0200
Petr Tesarik <ptesarik@suse.com> wrote:

> Hello all,
>
> this patch series makes it possible to save a kernel crash dump when the
> kernel command line includes "crash_kexec_post_notifiers".

Oh ... I forgot to add: This only applies to running Linux under Xen.
If you run on bare metal, you can always save the dump already, as you
certainly know.

Petr T

> There might
> be other approaches, but mine has the advantage that no new sysctl is
> required, and the behaviour is the same whether panic notifiers are run
> or not: If you load a crash kernel with kexec, it will be used, otherwise
> the hypervisor facility is used (using a hypercall).
>
> Feedback welcome!
>
> Petr T
>
> ---
>
> Petr Tesarik (2):
> Add a kexec_crash_loaded() function
> Allow kdump with crash_kexec_post_notifiers
>
>
> arch/x86/xen/enlighten.c | 3 ++-
> include/linux/kexec.h | 2 ++
> kernel/kexec_core.c | 5 +++++
> kernel/ksysfs.c | 2 +-
> 4 files changed, 10 insertions(+), 2 deletions(-)
>
> --
> Signature
>
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> kexec mailing list
> kexec@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/kexec

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