On Mon, 22 Mar 2021 11:08:47 +0100 David Hildenbrand <david@xxxxxxxxxx> wrote: > > Wonder if "echo c > /proc/sysrq-trigger" already existed and would have > worked back then. :) > > Looks like sysrq-c was added in 2005: commit 86b1ae38c0a62 ("kdump: sysrq trigger mechanism for kexec based crashdumps") Thus the answer is "No, it would not have worked back then". -- Steve