Bug 1023668

Created attachment 816441 [details]
init the neon library one time only

mirall systematically crashes in ne_sock_exit(), when 1/ an owncloud folder is currently updated 2/ the owncloud server uses ssl 3/ and the settings window is open (with the info window displaying the sync protocol live).

According to http://www.webdav.org/neon/doc/html/refsockinit.html, it is unsafe to unload neon, when using gnutls, but it seems to me that it's what happens each time a call to owncloud_commit() is made.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffbb0fd700 (LWP 756)]
__GI___libc_free (mem=0x25) at malloc.c:2892
2892	  if (chunk_is_mmapped(p))                       /* release mmapped memory. */
(gdb) bt
#0  __GI___libc_free (mem=0x25) at malloc.c:2892
#1  0x00007fffd1dc0f0a in mp_clear_multi (a=a@entry=0x7fffac0caec0)
    at multi.c:38
#2  0x00007fffd1dc250a in ecc_del_point (p=0x7fffac0caec0) at ecc_points.c:62
#3  0x00007fffd1dc1b7a in _ecc_wmnaf_cache_entry_free (p=<optimized out>)
    at ecc_mulmod_cached.c:55
#4  ecc_wmnaf_cache_free () at ecc_mulmod_cached.c:70
#5  0x00007fffd1dc0805 in gnutls_crypto_deinit () at init.c:44
#6  0x00007fffd1d2c7e1 in gnutls_global_deinit () at gnutls_global.c:304
#7  0x00007fffd828c444 in owncloud_commit ()
    at /usr/src/debug/ocsync-0.90.2/modules/csync_owncloud.c:1752
#8  0x00007ffff329306c in csync_commit (ctx=0xb2c210)
    at /usr/src/debug/ocsync-0.90.2/src/csync.c:820
#9  0x00007ffff3500016 in Mirall::CSyncRunScopeHelper::~CSyncRunScopeHelper()
    () from /lib64/libowncloudsync.so.0
#10 0x00007ffff34ff98a in Mirall::CSyncThread::startSync() ()
   from /lib64/libowncloudsync.so.0
#11 0x00007ffff351d07c in Mirall::CSyncThread::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /lib64/libowncloudsync.so.0