Hello everyone,
I am wondering whether it is possible to reserve a particular physical
page in the kernel.
The GFP pages can start from _any_ location, and i cannot find a way to
specify a starting pfn.
I need a few dozen pages to store a bitmap starting at a particular physical
page
);
the offset need in page units, vm_pgoff is the offset in page.
to map nth mem, you need to do (n-1)PAGE_SHIFT(n-1* page size
specific to arch). in mmap call, ultimately in the kernel vm_pgoff =
offset PAGE_SHIFT which is index into uio_mem array.
thanks,
thayumanavar s
/sections/.data
cat /sys/module/mymod/sections/.bss
Recent kernel versions contain kgdb as part of the mainline kernel and
no need to apply any kernel patches if you use this kernel.
Thanks,
Thayumanavar S.
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and
you have set kdump level to dump everything.
thx,thayumanavar s.
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