BMC/Intel-BMC/linux.git/arch/um/kernel/kmsg_dump.c, branch dev-4.7Intel OpenBMC Linux kernel source tree (mirror)https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev-4.72015-04-13T19:17:37+00:00um: add a kmsg_dumper2015-04-13T19:17:37+00:00Thomas Meyerthomas@m3y3r.de2015-03-28T09:07:37+00:00urn:sha1:04a418495e0852263d77c4fb82adf470feaafef3
Add a kmsg_dumper, that dumps the kmsg buffer to stdout, when no console
is available. This an enables the printing of early panic() calls
triggered in uml_postsetup().
When a panic() call happens so early in the UML kernel no
earlyprintk/console is available yet, but with a kmsg_dumper in place
the kernel message buffer will be outputted to the user, to give a
better hint, of what the failure was.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Richard Weinberger <richard@nod.at>