Messages in this thread | | | Date | Mon, 29 Oct 2001 13:03:31 +0100 | From | Magnus Sundberg <> | Subject | Does VFS cache individual files? Is the linker involved? |
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Dear sirs,
QUESTION: Does VFS cache the content of a file?
Does VFS consult memory instead of disk, when accessing a file that is already linked to a process that is running?
RELATED INFORMATION: Operating system RedHat 7.1, kernel 2.4.3-12 (from RedHat RPM) My webserver runs tripwire for integrity test of critical files.
One night, when the PHP runtime of apache had crashed, tripwire reported checksum error of /usr/lib/apache/libphp4.so The next night, when apache was restarted, there where no checksum errors of the file.
I have seen checksum errors of /lib/libc-2.2.2.so, rpm also reported md5 checksum error when I used rpm to verify the installation of glibc.
Thank you for your time reading this
regards,
Magnus Sundberg
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