Technical data

System Dump Analyzer
SHOW PFN_DATA
SHOW PFN_DATA
Displays information that is contained in the page lists and PFN database.
Format
SHOW PFN_DATA [pfn] [/qualifier]
Parameter
pfn
Page frame number (PFN) of the physical page for which information is to be
displayed.
Qualifiers
/ALL
Displays the free page list, modified page list, and bad page list. This is the
default behavior of the SHOW PFN_DATA command. SDA precedes each list
with a count of the pages it contains and its low and high limits.
/BAD
Displays the bad page list. SDA precedes the list with a count of the pages it
contains, its low limit, and its high limit.
/FREE
Displays the free page list. SDA precedes the list with a count of the pages it
contains, its low limit, and its high limit.
/MODIFIED
Displays the modified page list. SDA precedes the list with a count of the pages
it contains, its low limit, and its high limit.
/SYSTEM
Displays the entire PFN database in order by page frame number, starting at
PFN 0000.
Description
For each page frame number it displays, the SHOW PFN_DATA command lists
information used in translating physical page addresses to virtual page addresses.
Table SDA–18 lists the contents of the display.
Table SDA–18 Page Frame Number Information in the SHOW PFN_DATA
Display
Item Contents
PFN Page frame number
PTE ADDRESS System virtual address of the page table entry that describes
the virtual page mapped into this physical page
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SDA–131