[Bug 186114] net/mpd5 hangs after a certain number of users connect

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=186114

--- Comment #45 from Cassiano Peixoto <peixoto.cassiano at gmail.com> ---
(In reply to Eugene Grosbein from comment #43)
Hi Eugene,

I just got a stuck process this morning with uwrlck state. As i said before i'm
not using mpd web anymore.

Here is the bt result after it hangs:

#0  0x000000080248567c in _umtx_op_err () from /lib/libthr.so.3
#1  0x0000000802479c81 in __thr_rwlock_wrlock (rwlock=0x802694500, tsp=<value
optimized out>) at /usr/src/lib/libthr/thread/thr_umtx.c:325
#2  0x00000008024829f3 in _thr_rtld_wlock_acquire (lock=<value optimized out>)
at thr_umtx.h:239
#3  0x0000000800703c72 in wlock_acquire (lock=0x800918960,
lockstate=0x7fffdfffda58) at /usr/src/libexec/rtld-elf/rtld_lock.c:217
#4  0x00000008006fff4f in _rtld_allocate_tls (oldtls=0x0, tcbsize=32,
tcbalign=16) at /usr/src/libexec/rtld-elf/rtld.c:4802
#5  0x0000000802481b69 in _tcb_ctor (thread=0x807c7ba00, initial=<value
optimized out>) at /usr/src/lib/libthr/thread/thr_ctrdtr.c:45
#6  0x0000000802481110 in _thr_alloc (curthread=<value optimized out>) at
/usr/src/lib/libthr/thread/thr_list.c:170
#7  0x00000008024772a6 in _pthread_create (thread=0x80342fd78, attr=0x0,
start_routine=0x4b17c0 <paction_main>, arg=<value optimized out>) at
/usr/src/lib/libthr/thread/thr_create.c:78
#8  0x00000000004b1744 in paction_start (actionp=0x80cf7f3b8, mutex=0x7bee08,
handler=0x442f40 <AuthAccount>, finish=0x4430c0 <AuthAccountFinish>,
arg=0x807c20010) at contrib/libpdel/util/paction.c:115
#9  0x0000000000442eaa in AuthAccountStart (l=0x80cf7f010, type=3) at
auth.c:927
#10 0x0000000000442f31 in AuthAccountTimeout (arg=0x80cf7f010) at auth.c:949
#11 0x00000000004a0344 in TimerExpires (type=3, cookie=0x80cf7f120) at
timer.c:99
#12 0x0000000000462ed7 in EventHandler (arg=0x80cf7f120) at event.c:146
#13 0x00000000004b154e in pevent_ctx_execute (arg=0x807db6f08) at
contrib/libpdel/util/pevent.c:885
#14 0x00000000004b112f in pevent_ctx_service (ev=0x807db6f08) at
contrib/libpdel/util/pevent.c:774
#15 0x00000000004b0baf in pevent_ctx_main (arg=0x80322c008) at
contrib/libpdel/util/pevent.c:720
#16 0x0000000802477b55 in thread_start (curthread=<value optimized out>) at
/usr/src/lib/libthr/thread/thr_create.c:289

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