[patch 0/3] Protect crashkernel against BSS overlap
bwalle at suse.de
Tue Oct 16 12:28:57 EDT 2007
I observed the problem that even when you choose the default 16M as
crashkernel base address and the kernel is very big, the reserved area may
overlap with the kernel BSS. Currently, this is not checked at runtime, so the
kernel just crashes when you load the panic kernel in the sys_kexec call.
This three patches check this at runtime. The patches are against current git,
but with the patches
from -mm tree applied since they are marked to be merged in 2.6.24.
I know that the implementation of both patches is only x86 (i386 and x86-64),
but if you agree that it's the way to go, I'll modify the patch for all
Signed-off-by: Bernhard Walle <bwalle at suse.de>
More information about the kexec