Hello,
I've got a problem with stat (/usr/bin/stat) after updating my linux kernel from 2.6.18 to 2.6.21.3
The problem appeared while using find with the -mount option to exclude files which are not at the local drive.
With kernel 2.6.18 the command "find / -mount" stayed at local disc and didn't go down in paths mounted via nfs to my local filesystem.
After updating to kernel version 2.6.21.3 find no longer stays at local drive and goes down in all paths mounted via nfs.
I recognized that stat now no longer handles filesystems mounted via nfs to / with a different device id. The device id is the same as for /
Example:
Linux 2.6.18 (ok)
------------------------
stat / | grep Device
Device: ch/12d Inode: 552417276 Links: 26
/usr/www/tmp is mounted using nfs
stat /usr/www/tmp/ --filesystem | grep Type
ID: 0 Namelen: 255 Type: nfs
stat /usr/www/tmp/ | grep Device
Device: 17h/23d Inode: 671557496 Links: 2
/tmp/ is another partition at local disc mounted to /
stat /tmp/ --filesystem | grep Type
ID: 305 Namelen: 255 Type: xfs
stat /tmp/ | grep Device
Device: 305h/773d Inode: 128 Links: 6
other linux box
Linux 2.6.21.3 (not ok)
---------------------------------
stat / | grep Device
Device: eh/14d Inode: 1208534959 Links: 26
/usr/www/tmp is mounted using nfs
stat /usr/www/tmp/ --filesystem | grep Type
ID: 0 Namelen: 255 Type: nfs
stat /usr/www/tmp/ | grep Device
Device: eh/14d Inode: 671557496 Links: 2
/tmp/ is another partition at local disc mounted to /
stat /tmp/ --filesystem | grep Type
ID: 805 Namelen: 255 Type: xfs
stat /tmp/ | grep Device
Device: 805h/2053d Inode: 128 Links: 5
I have another box running with 2.6.20 and it behaves like the box running 2.6.18, everthing works fine.
Since no other changes than the kernel update was performed at the server, I think maybe sothing changed between 2.6.20 and 2.6.21 which leeds stat zu no longer mountet nfs shares with other device ids than the root device id.
I'm using SUSE LINUX 10.1 with a custom kernel form kernel.org.
Hopefully someone can give me a hint or can confirm my notice.
Because I have not subscribed the linux kernel mailing list, please send answers in CC to: [email protected]
If somebody needs futher information or tests, please let me know.
Thank you so far and may linux/opensource live forever.
Kind regards,
Tobias Mantel
Systemadministration/Netzwerk
Junior Level Linux Professional (LPIC-1)
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