-----Original Message-----
> > > Crash utility currently does not supporting virtual to physical
> > > address translation for 1G huge pages on x86_64, This patch tries to
> > > address this issue by providing address translation support for huge
> > > pages in 'vtop' command.
> >
> > Good catch! I think it would be better to add the same behavior also to
> > x86_64_kvtop(). Could you do it?
> >
> > Thanks,
> > Kazu
> >
>
> Yes, I can. But how should I test?
You can get the kernel virtual address corresponding to the physical address
of a user virtual address with ptov command, and then do vtop again the kernel
virtual address. For example:
crash.1Ghuge> vtop 7f4780000000
VIRTUAL PHYSICAL
7f4780000000 1a00000000
PGD: 2fa32e47f0 => 8000002fb2f30067
PUD: 2fb2f308f0 => 8000001a000008e7
PAGE: 1a00000000 (1GB)
...
crash.1Ghuge> ptov 1a00000000
VIRTUAL PHYSICAL
ffff8fe580000000 1a00000000
crash.1Ghuge> vtop ffff8fe580000000
VIRTUAL PHYSICAL
ffff8fe580000000 1a00000000
PGD DIRECTORY: ffffffff92c0a000
PAGE DIRECTORY: 18b2001067
PUD: 18b2001cb0 => 8000001a000001e3
PMD: 1a00000000 => 706050403020100 <<-- should print "(1GB)" and PTE info
PAGE PHYSICAL MAPPING INDEX CNT FLAGS
fffffa1aa8000000 1a00000000 ffff8ffb525d0cb9 0 1 57ffffc001000c
uptodate,dirty,head
Thanks,
Kazu
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