Pasha Tatashin pasha.tatashin@soleen.com writes:
Page Detective is a kernel debugging tool that provides detailed information about the usage and mapping of physical memory pages.
It operates through the Linux debugfs interface, providing access to both virtual and physical address inquiries. The output, presented via kernel log messages (accessible with dmesg), will help administrators and developers understand how specific pages are utilized by the system.
This tool can be used to investigate various memory-related issues, such as checksum failures during live migration, filesystem journal failures, general segfaults, or other corruptions.
Signed-off-by: Pasha Tatashin pasha.tatashin@soleen.com
Documentation/misc-devices/index.rst | 1 + Documentation/misc-devices/page_detective.rst | 78 ++
This seems like a strange place to bury this document - who will look for it here? Even if it is truly implemented as a misc device (I didn't look), the documentation would belong either in the admin guide or with the MM docs, it seems to me...?
Thanks,
jon