The hash queue is used for gathering and verifying lists, and the
original count of 128 may be overwhelmed if a list is extremely
large. For example, on a 256GB system with 192GB of free pages,
the "kmem -f" command takes hours to complete; with this patch,
the time is reduced to a few minutes. In addition, a new command
line option "--hash <count>" has been added to allow a user to
override the default hash queue head count of 32768.
(anderson@redhat.com)
that that are configured with CONFIG_RANDOMIZE_BASE. When set to
"auto", the KASLR relocation value will be determined automatically
by comparing the "_stext" symbol value compiled into the vmlinux file
with the _stext symbol value stored in kdump vmcoreinfo data; on live
systems the comparison will be made with the "_stext" symbol value
that is found in /proc/kallsyms.
(ahonig@google.com, anderson@redhat.com)
X86_64 kernels that are configured with CONFIG_RANDOMIZE_BASE.
The offset value must be equal to the difference between the
symbol values compiled into the vmlinux file and their relocated
value.
(ahonig@google.com, anderson@redhat.com)
