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strange Problem dcachesize [message #31092] Wed, 18 June 2008 07:10 Go to next message
disaster is currently offline  disaster
Messages: 158
Registered: February 2006
Senior Member
Hello!

dcachesize fails even if the barrier and the limit are high enough. Kernel ist the latest .014 2.6.18

cat /proc/user_beancounters 
Version: 2.5
       uid  resource                     held              maxheld              barrier                limit              failcnt
      111:  kmemsize                  9504239             21956407            107374182            108422758                    0
            lockedpages                     0                    4                   32                   32                    0
            privvmpages                256334              1310798              4194304              4194304                    0
            shmpages                     8577                45441               131072               131072                    0
            dummy                           0                    0                    0                    0                    0
            numproc                        96                  180                  180                  190                    0
            physpages                   63900              1043818                    0               524288                    0
            vmguarpages                     0                    0               524288               524288                    0
            oomguarpages                63900              1043818               524288               524288                    0
            numtcpsock                     33                  106                  290                  290                    0
            numflock                        8                   25                  100                  110                    0
            numpty                          1                    3                   16                   16                    0
            numsiginfo                      0                  134                  256                  256                    0
            tcpsndbuf                   33024               526336               524288               576716                13802
            tcprcvbuf                  272384               737280              2097152              4194304                    0
            othersockbuf                46080               388096              1048576              1048576                    0
            dgramrcvbuf                     0                58880               132096               132096                    0
            numothersock                   29                  105                  180                  190                    0
            dcachesize                 918342              1809453             16777216             17563648             52092319
            numfile                      2489                 8100                16384                16384                    0
            dummy                           0                    0                    0                    0                    0
            dummy                           0                    0                    0                    0                    0
            dummy                           0                    0                    0                    0                    0
            numiptent                      13                   13                 4000                 4000                    0


df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/simfs             74G  9.0G   66G  13% /
tmpfs                 7.9G     0  7.9G   0% /lib/init/rw
tmpfs                 7.9G     0  7.9G   0% /dev/shm
simfs                  74G  9.0G   66G  13% /home/tmp
simfs                  74G  9.0G   66G  13% /home/var/tmp


df -i
Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/dev/simfs           1000000  228770  771230   23% /
tmpfs                2050797       2 2050795    1% /lib/init/rw
tmpfs                2050797       1 2050796    1% /dev/shm
simfs                1000000  228770  771230   23% /home/tmp
simfs                1000000  228770  771230   23% /home/var/tmp



on the HN i also received:

[935248.026901] VFS: Busy inodes after unmount. sb = ffff8101e1658000, fs type = devpts, sb count = 1, sb->s_root = 
[935248.026961] inode = ffff810263f7eac8, inode->i_count = 1, inode->i_nlink = 1, inode->i_mode = 8592, inode->i_state = 0, inode->i_flags = 0, inode->i_devices.next = ffff810263f7eca8, inode->i_devices.prev = ffff810263f7eca8, inode->i_ino = 2
[935248.027063] inode dump: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b8 24 2c 2f 04 81 ff ff 60 d7 96 b3 01 81 ff ff 68 a5 e9 88 02 81 ff ff c0 80 65 e1 01 81 ff ff f8 ea f7 63 02 81 ff ff f8 ea f7 63 02 81 ff ff 02 00 00 00 00 00 00 00 01 00 00 00 90 21 00 00 01 00 00 00 00 00 00 00 05 00 00 00 00 00 80 08 00 00 00 00 00 00 00 00 82 b6 57 48 00 00 00 00 68 ec 6b 35 00 00 00 00 82 b6 57 48 00 00 00 00 68 ec 6b 35 00 00 00 00 82 b6 57 48 00 00 00 00 68 ec 6b 35 00 00 00 00 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00 88 eb f7 63 02 81 ff ff 88 eb f7 63 02 81 ff ff 00 00 00 00 01 00 00 00 a0 eb f7 63 02 81 ff ff a0 eb f7 63 02 81 ff ff 80 2a 42 80 ff ff ff ff a0 77 28 80 ff ff ff ff 00 80 65 e1 01 81 ff ff 00 00 00 00 00 00 00 00 d8 eb f7 63 02 81 ff ff c8 ea f7 63 02 81 ff ff 00 00 00 00 20 02 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 01 00 01 00 00 00 00 00 08 ec f7 63 02 81 ff ff 08 ec f7 63 02 81 ff ff 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 2b 42 80 ff ff ff ff d2 00 02 00 00 00 00 00 60 72 2f 80 ff ff ff ff 01 00 00 00 00 00 00 00 50 ec f7 63 02 81 ff ff 50 ec f7 63 02 81 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a8 ec f7 63 02 81 ff ff a8 ec f7 63 02 81 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d8 ec f7 63 02 81 ff ff d8 ec f7 63 02 81 ff ff 01 00 00 00 01 00 00 00 f0 ec f7 63 02 81 ff ff f0 ec f7 63 02 81 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d8 15 91 03 81 ff ff 
[935248.029805] inode = ffff810288e9a548, inode->i_count = 1, inode->i_nlink = 1, inode->i_mode = 8592, inode->i_state = 0, inode->i_flags = 0, inode->i_devices.next = ffff810288e9a728, inode->i_devices.prev = ffff810288e9a728, inode->i_ino = 2
[935248.029910] inode dump: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d8 90 56 1c 00 81 ff ff 60 6d 3a fe 03 81 ff ff c0 80 65 e1 01 81 ff ff e8 ea f7 63 02 81 ff ff 78 a5 e9 88 02 81 ff ff 78 a5 e9 88 02 81 ff ff 02 00 00 00 00 00 00 00 01 00 00 00 90 21 00 00 01 00 00 00 00 00 00 00 05 00 00 00 00 00 80 08 00 00 00 00 00 00 00 00 e3 b5 57 48 00 00 00 00 d0 63 7f 3a 00 00 00 00 e3 b5 57 48 00 00 00 00 d0 63 7f 3a 00 00 00 00 e3 b5 57 48 00 00 00 00 d0 63 7f 3a 00 00 00 00 0a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00 08 a6 e9 88 02 81 ff ff 08 a6 e9 88 02 81 ff ff 00 00 00 00 01 00 00 00 20 a6 e9 88 02 81 ff ff 20 a6 e9 88 02 81 ff ff 80 2a 42 80 ff ff ff ff a0 77 28 80 ff ff ff ff 00 80 65 e1 01 81 ff ff 00 00 00 00 00 00 00 00 58 a6 e9 88 02 81 ff ff 48 a5 e9 88 02 81 ff ff 00 00 00 00 20 02 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 01 00 01 00 00 00 00 00 88 a6 e9 88 02 81 ff ff 88 a6 e9 88 02 81 ff ff 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 2b 42 80 ff ff ff ff d2 00 02 00 00 00 00 00 60 72 2f 80 ff ff ff ff 01 00 00 00 00 00 00 00 d0 a6 e9 88 02 81 ff ff d0 a6 e9 88 02 81 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 28 a7 e9 88 02 81 ff ff 28 a7 e9 88 02 81 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 58 a7 e9 88 02 81 ff ff 58 a7 e9 88 02 81 ff ff 01 00 00 00 01 00 00 00 70 a7 e9 88 02 81 ff ff 70 a7 e9 88 02 81 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0 02 6f 03 81 ff ff 
[935248.032091] VFS: Busy inodes after unmount of devpts. Self-destruct in 5 seconds.  Have a nice day...


[Updated on: Wed, 18 June 2008 07:13]

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Re: strange Problem dcachesize [message #31694 is a reply to message #31092] Mon, 07 July 2008 08:37 Go to previous message
den is currently offline  den
Messages: 494
Registered: December 2005
Senior Member
The most important thing for me here is the following:
- do you have dcache size constantly increasing or not?

In the latter case you container traverses a lot of path and the usage of it can be arbitrary high. This is not the problem from the kernel point of view. Though if the usage is constantly increased and never decreased then we'll have a leak.

As for the "busy inodes after umount"... This is a weird problem Sad Is it reproducible?
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