----- Original Message -----
> From: "Antonio Rojas" <[email protected]>
> To: [email protected]
> Sent: Tuesday, August 21, 2018 8:00:43 PM
> Subject: Re: libssh 0.8.1 breaks amarok
>
> El martes, 21 de agosto de 2018 19:22:18 (CEST) Andreas Schneider escribió:
> >
> > FYI:
> >
> > mysql_library_init() is an alias for mysql_server_init() which calls
> > pthread_once(). pthread_once() returns an error. Would be interesting which
> > errno it returns!
>
> We are still on mariadb 10.1, which is significantly different. Here is the
> full trace of the amarok mysql_server_init call:
>
> Thread 1 "amarok" hit Breakpoint 1, mysql_server_init (argc=9,
> argv=0x555555d29b98, groups=0x0) at
> /usr/src/debug/mariadb-10.1.35/libmysql/libmysql.c:130
> 132 in /usr/src/debug/mariadb-10.1.35/libmysql/libmysql.c
> 133 in /usr/src/debug/mariadb-10.1.35/libmysql/libmysql.c
> 134 in /usr/src/debug/mariadb-10.1.35/libmysql/libmysql.c
> my_init () at /usr/src/debug/mariadb-10.1.35/mysys/my_init.c:78
> 80 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> 81 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> 82 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> 83 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> 86 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> 89 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> 92 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> init_glob_errs () at /usr/src/debug/mariadb-10.1.35/mysys/errors.c:64
> my_init () at /usr/src/debug/mariadb-10.1.35/mysys/my_init.c:94
> 96 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> 98 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> 99 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> 103 in /usr/src/debug/mariadb-10.1.35/mysys/my_init.c
> my_mutex_init () at /usr/src/debug/mariadb-10.1.35/mysys/thr_mutex.c:94
> 101 in /usr/src/debug/mariadb-10.1.35/mysys/thr_mutex.c
> 102 in /usr/src/debug/mariadb-10.1.35/mysys/thr_mutex.c
> 0x00007ffff3020440 in pthread_mutexattr_settype () from
> /usr/lib/libpthread.so.0
> Single stepping until exit from function pthread_mutexattr_settype,
> which has no line number information.
> my_init () at /usr/src/debug/mariadb-10.1.35/mysys/my_init.c:105
> my_thread_global_init () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:168
> 170 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 179 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 185 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 188 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> my_thread_init_internal_mutex () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:188
> 188 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed680
> <THR_LOCK_threads>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:616
> init_mutex_noop (key=0, identity=0x7fffa75ed680 <THR_LOCK_threads>) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:91
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed680
> <THR_LOCK_threads>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
> my_thread_init_internal_mutex () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:95
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed6c0
> <THR_LOCK_malloc>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:616
> init_mutex_noop (key=0, identity=0x7fffa75ed6c0 <THR_LOCK_malloc>) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:91
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed6c0
> <THR_LOCK_malloc>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
> my_thread_init_internal_mutex () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:96
> inline_mysql_cond_init (attr=0x0, that=0x7fffa75ed740 <THR_COND_threads>,
> key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:1114
> init_cond_noop (key=0, identity=0x7fffa75ed740 <THR_COND_threads>) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:113
> inline_mysql_cond_init (attr=0x0, that=0x7fffa75ed740 <THR_COND_threads>,
> key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:1118
> my_thread_global_init () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:190
> my_thread_init () at /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:275
> 275 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 282 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 295 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 300 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 301 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 302 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> my_thread_init_thr_mutex (var=0x555555d78320) at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:302
> 302 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 109 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> inline_mysql_mutex_init (attr=<optimized out>, that=0x555555d78360, key=0) at
> /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:616
> init_mutex_noop (key=0, identity=0x555555d78360) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:91
> inline_mysql_mutex_init (attr=<optimized out>, that=0x555555d78360,
> key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
> my_thread_init_thr_mutex (var=0x555555d78320) at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:110
> inline_mysql_cond_init (attr=0x0, that=0x555555d78328, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:1114
> init_cond_noop (key=0, identity=0x555555d78328) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:113
> inline_mysql_cond_init (attr=0x0, that=0x555555d78328, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:1118
> my_thread_init () at /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:304
> 307 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> inline_mysql_mutex_lock (that=0x7fffa75ed680 <THR_LOCK_threads>,
> src_file=0x7fffa67f7dc8
> "/build/mariadb/src/mariadb-10.1.35/mysys/my_thr_init.c",
> src_line=307) at
> /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:662
> my_thread_init () at /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:307
> inline_mysql_mutex_lock (that=0x7fffa75ed680 <THR_LOCK_threads>,
> src_file=0x7fffa67f7dc8
> "/build/mariadb/src/mariadb-10.1.35/mysys/my_thr_init.c",
> src_line=307) at
> /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:693
> 696 in /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h
> my_thread_init () at /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:308
> 309 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> 310 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> inline_mysql_mutex_unlock (that=0x7fffa75ed680 <THR_LOCK_threads>) at
> /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:756
> 765 in /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h
> my_thread_init () at /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:311
> my_thread_global_init () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:193
> 193 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> get_thread_lib () at /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:193
> 193 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> confstr (__len=64, __buf=0x7fffffffdce0 "\b\336\377\377\377\177", __name=3)
> at /usr/include/bits/unistd.h:250
> 250 return __confstr_alias (__name, __buf, __len);
> get_thread_lib () at /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:467
> 195 in /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c
> my_thread_init_common_mutex () at
> /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed780
> <THR_LOCK_lock>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:616
> init_mutex_noop (key=0, identity=0x7fffa75ed780 <THR_LOCK_lock>) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:91
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed780
> <THR_LOCK_lock>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
> my_thread_init_common_mutex () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:62
> inline_mysql_mutex_init (attr=0x0, that=0x7fffa75ed600 <THR_LOCK_myisam>,
> key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:616
> init_mutex_noop (key=0, identity=0x7fffa75ed600 <THR_LOCK_myisam>) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:91
> inline_mysql_mutex_init (attr=0x0, that=0x7fffa75ed600 <THR_LOCK_myisam>,
> key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
> my_thread_init_common_mutex () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:63
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed700
> <THR_LOCK_myisam_mmap>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:616
> init_mutex_noop (key=0, identity=0x7fffa75ed700 <THR_LOCK_myisam_mmap>) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:91
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed700
> <THR_LOCK_myisam_mmap>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
> my_thread_init_common_mutex () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:64
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed7c0
> <THR_LOCK_heap>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:616
> init_mutex_noop (key=0, identity=0x7fffa75ed7c0 <THR_LOCK_heap>) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:91
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed7c0
> <THR_LOCK_heap>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
> my_thread_init_common_mutex () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:65
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed640
> <THR_LOCK_net>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:616
> init_mutex_noop (key=0, identity=0x7fffa75ed640 <THR_LOCK_net>) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:91
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed640
> <THR_LOCK_net>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
> my_thread_init_common_mutex () at
> /usr/src/debug/mariadb-10.1.35/mysys/my_thr_init.c:66
> inline_mysql_mutex_init (attr=<optimized out>, that=0x7fffa75ed840
> <THR_LOCK_charset>, key=<optimized out>)
> at /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:616
> init_mutex_noop (key=0, identity=0x7fffa75ed840 <THR_LOCK_charset>) at
> /usr/src/debug/mariadb-10.1.35/mysys/psi_noop.c:91
> my_thread_init_common_mutex () at
> /usr/src/debug/mariadb-10.1.35/include/mysql/psi/mysql_thread.h:625
>
Thank you again for the traces. Apparently, the execution is interrupted due to
an error in:
https://github.com/MariaDB/server/blob/10.1/libmysql/libmysql.c#L134
We can see the execution reached the call in:
https://github.com/MariaDB/server/blob/10.1/mysys/my_init.c#L105
inside my_thread_global_init, it reaches:
https://github.com/MariaDB/server/blob/10.1/mysys/my_thr_init.c#L195
So, I believe my_thread_global_init() should return zero. But it is not the
case, since the execution do not continue further. I am still trying to figure
out how is it possible.
I will try to create a smaller reproducer to be able to debug faster.
