Re^5: FUSE, fuse_get_context and private = dangling pointer woes

Hello Anonymous Monk,

Let me show you a complete error output, maybe you can see something that I am missing.

Debug:

FUSE library version: 2.9.2
nullpath_ok: 0
nopath: 0
utime_omit_ok: 0
unique: 1, opcode: INIT (26), nodeid: 0, insize: 56, pid: 0
INIT: 7.22
flags=0x0000f7fb
max_readahead=0x00020000
   INIT: 7.19
   flags=0x00000011
   max_readahead=0x00020000
   max_write=0x00020000
   max_background=0
   congestion_threshold=0
   unique: 1, success, outsize: 40
unique: 2, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 2, success, outsize: 32
unique: 3, opcode: LOOKUP (1), nodeid: 1, insize: 47, pid: 2907
LOOKUP /.Trash
getattr /.Trash
   unique: 3, error: -2 (No such file or directory), outsize: 16
unique: 4, opcode: LOOKUP (1), nodeid: 1, insize: 57, pid: 4122
LOOKUP /.xdg-volume-info
getattr /.xdg-volume-info
   unique: 4, error: -2 (No such file or directory), outsize: 16
unique: 5, opcode: LOOKUP (1), nodeid: 1, insize: 52, pid: 2907
LOOKUP /.Trash-1000
getattr /.Trash-1000
   unique: 5, error: -2 (No such file or directory), outsize: 16
unique: 6, opcode: LOOKUP (1), nodeid: 1, insize: 52, pid: 4121
LOOKUP /autorun.inf
getattr /autorun.inf
   unique: 6, error: -2 (No such file or directory), outsize: 16
unique: 7, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 7, error: -38 (Function not implemented), outsize: 16
unique: 8, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 8, success, outsize: 16
unique: 9, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 9, success, outsize: 32
unique: 10, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 10, error: -38 (Function not implemented), outsize: 16
unique: 11, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 11, success, outsize: 16
unique: 12, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 12, success, outsize: 32
unique: 13, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 13, error: -38 (Function not implemented), outsize: 16
unique: 14, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 14, success, outsize: 16
unique: 15, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 15, success, outsize: 32
unique: 16, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 16, error: -38 (Function not implemented), outsize: 16
unique: 17, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 17, success, outsize: 16
unique: 18, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 18, success, outsize: 32
unique: 19, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 19, error: -38 (Function not implemented), outsize: 16
unique: 20, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 20, success, outsize: 16
unique: 21, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 21, success, outsize: 32
unique: 22, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 22, error: -38 (Function not implemented), outsize: 16
unique: 23, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 23, success, outsize: 16
unique: 24, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 24, success, outsize: 32
unique: 25, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 25, error: -38 (Function not implemented), outsize: 16
unique: 26, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 26, success, outsize: 16
unique: 27, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 27, success, outsize: 32
unique: 28, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 28, error: -38 (Function not implemented), outsize: 16
unique: 29, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 29, success, outsize: 16
unique: 30, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 30, success, outsize: 32
unique: 31, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 31, error: -38 (Function not implemented), outsize: 16
unique: 32, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 32, success, outsize: 16
unique: 33, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 33, success, outsize: 32
unique: 34, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 34, error: -38 (Function not implemented), outsize: 16
unique: 35, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 35, success, outsize: 16
unique: 36, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 36, success, outsize: 32
unique: 37, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 37, error: -38 (Function not implemented), outsize: 16
unique: 38, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 38, success, outsize: 16
unique: 39, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 39, success, outsize: 32
unique: 40, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 40, error: -38 (Function not implemented), outsize: 16
unique: 41, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 41, success, outsize: 16
unique: 42, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 42, success, outsize: 32
unique: 43, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 43, error: -38 (Function not implemented), outsize: 16
unique: 44, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 44, success, outsize: 16
unique: 45, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 45, success, outsize: 32
unique: 46, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 46, error: -38 (Function not implemented), outsize: 16
unique: 47, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 47, success, outsize: 16
unique: 48, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 48, success, outsize: 32
unique: 49, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 49, error: -38 (Function not implemented), outsize: 16
unique: 50, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 50, success, outsize: 16
unique: 51, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 51, success, outsize: 32
unique: 52, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 52, error: -38 (Function not implemented), outsize: 16
unique: 53, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 53, success, outsize: 16
unique: 54, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 54, success, outsize: 32
unique: 55, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 55, error: -38 (Function not implemented), outsize: 16
unique: 56, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 56, success, outsize: 16
unique: 57, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 57, success, outsize: 32
unique: 58, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 58, error: -38 (Function not implemented), outsize: 16
unique: 59, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 59, success, outsize: 16
unique: 60, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 60, success, outsize: 32
unique: 61, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 61, error: -38 (Function not implemented), outsize: 16
unique: 62, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 62, success, outsize: 16
unique: 63, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 63, success, outsize: 32
unique: 64, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 64, error: -38 (Function not implemented), outsize: 16
unique: 65, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 65, success, outsize: 16
unique: 66, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 2799
   unique: 66, success, outsize: 32
unique: 67, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 2799
   unique: 67, error: -38 (Function not implemented), outsize: 16
unique: 68, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 68, success, outsize: 16
unique: 69, opcode: OPENDIR (27), nodeid: 1, insize: 48, pid: 4122
   unique: 69, success, outsize: 32
unique: 70, opcode: READDIR (28), nodeid: 1, insize: 80, pid: 4121
   unique: 70, error: -38 (Function not implemented), outsize: 16
unique: 71, opcode: RELEASEDIR (29), nodeid: 1, insize: 64, pid: 0
   unique: 71, success, outsize: 16
unique: 72, opcode: LOOKUP (1), nodeid: 1, insize: 52, pid: 4122
LOOKUP /autorun.inf
getattr /autorun.inf
   unique: 72, error: -2 (No such file or directory), outsize: 16
[download]

The script is the one that I posted above, the only modification is this:

my $mountpoint = "/home/thanos/test_fuse";
#$mountpoint = $ARGV[1] or die "You forgot to provide the mountpoint!\
+n";
[download]

I am running on:

Linux OS 3.13.0-38-generic #65-Ubuntu SMP Thu Oct 9 11:36:50 UTC 2014 
+x86_64 x86_64 x86_64 GNU/Linux
[download]

Perl Version:

This is perl 5, version 18, subversion 2 (v5.18.2) built for x86_64-li
+nux-gnu-thread-multi
[download]

Hope this gives more information in possible representation of error. If you have any possible thoughts on how to get over this error please let me know. Thanks in advance.

Seeking for Perl wisdom...on the process of learning...not there...yet!

Comment on Re^5: FUSE, fuse_get_context and private = dangling pointer woes Select or Download Code

Replies are listed 'Best First'.
Re^6: FUSE, fuse_get_context and private = dangling pointer woes by CandyAngel (Initiate) on Oct 13, 2014 at 23:50 UTC
I'm not sure what you are regarding to be an error.. "Function not implemented" is returned by the Fuse module by default if you don't provide a callback for that function, which you haven't done (it would be handled by Fuse::main (getdir => ...);	[reply]