[Gluster-devel] Segmentation fault occurred in glusterfs_getxattr.

[Raghavendra G]

Hi,

On Wed, Aug 26, 2009 at 1:07 PM, Minjae Shin <mjshin at hostway.co.kr> wrote:

>  Hello,
>
>
>
> 1. When I call glusterfs_getxattr, I received 'Segmentation fault' error
> like the following:
>
> -------------------------------------------
>
> Program received signal SIGSEGV, Segmentation fault.
>
> [Switching to Thread -1209996640 (LWP 16114)]
>
> 0xb7ebc046 in free () from /lib/tls/libc.so.6
>
> (gdb) bt
>
> #0  0xb7ebc046 in free () from /lib/tls/libc.so.6
>
> #1  0xb7f9c611 in __glusterfs_glh_getxattr (handle=0xb7f854c0,
>
>     path=0x808fc80 "/r/rest_test_nodelete/hello_70301.txt",
>
>     name=0x8090206 "hello_70301.txt", value=0x804a008, size=1024,
> whichop=1)
>
>     at libglusterfsclient.c:2273
>
> #2  0xb7f9c944 in glusterfs_getxattr (
>
>     path=0x8048af8
> "/home/minjae/gluster_test/libglusterfs/mount/r/rest_test_nodelete/hello_70301.txt",
> name=0x8048bbd "user.test", value=0x804a008, size=1024)
>
>     at libglusterfsclient.c:2327
>
> #3  0x0804886d in main () at test.c:54
>
> -------------------------------------------
>
> The attribute name was "user.test" in #3, but this was changed to
> "hello_70301.txt" in #2.
>
> About some files, glusterfs_getxattr is working well, but sometimes working
> strange including this.
>
Progress on this bug can be tracked at
http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=228

>
>
>
>
> 2. This is about glusterfs_flistxattr, and here is my code :
>
> -------------------------------------------
>
>     ssize_t bufsize = 1024;
>
>     char *buffer = NULL;
>
>     buffer = calloc( bufsize, sizeof(char) );
>
>
>
>     ret = glusterfs_flistxattr( fd, buffer, bufsize );
>
> -------------------------------------------
>
> The 'ret' is 38 with Success, but buffer is empty.
>
glusterfs_flistxattr is not implemented, It just returns ENOSYS. The correct
way should've been returning -1 with errno set to ENOSYS. A bug is filed at
http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=229


>
>
> Here is the log:
>
> [2009-08-26 17:21:59] D [dht-common.c:161:dht_lookup_dir_cbk] distribute:
> fixing assignment on /
>
> [2009-08-26 17:21:59] D [dht-selfheal.c:435:dht_selfheal_directory]
> distribute: 2 subvolumes down -- not fixing
>
> [2009-08-26 17:21:59] D [libglusterfsclient.c:1410:libgf_vmp_search_entry]
> libglusterfsclient: VMP Entry found:
> /home/minjae/gluster_test/libglusterfs/mount/r/rest_test_nodelete/hello_70301.txt:
> /home/minjae/gluster_test/libglusterfs/mount/
>
> [2009-08-26 17:21:59] D [libglusterfsclient-dentry.c:245:__do_path_resolve]
> libglusterfsclient-dentry: resolved
> path(/r/rest_test_nodelete/hello_70301.txt) till 1(/). sending lookup for
> remaining path
>
> [2009-08-26 17:21:59] D [dht-layout.c:101:dht_layout_search] distribute: no
> subvolume for hash (value) = 250795985
>
> [2009-08-26 17:21:59] D [dht-helper.c:228:dht_subvol_get_hashed]
> distribute: could not find subvolume for path=/r
>
> [2009-08-26 17:21:59] D [dht-common.c:820:dht_lookup] distribute: no
> subvolume in layout for path=/r, checking on all the subvols to see if it is
> a directory
>
>
>
>
>
> Could you check these, please?
>
> I'm using glusterfs 2.0.6
>
>
>
> Thanks in advnace!
>
> --
>
> Minjae Shin
>
>
>
> _______________________________________________
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>
>


-- 
Raghavendra G
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