Messages in this thread | | | Subject | [PATCH 0/2] Allow crash dumps with crash_kexec_post_notifiers | From | Petr Tesarik <> | Date | Wed, 13 Jul 2016 14:19:50 +0200 |
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Hello all,
this patch series makes it possible to save a kernel crash dump when the kernel command line includes "crash_kexec_post_notifiers". 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
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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(-)
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