Re: cmake hanging

[Tom Ivar Helbekkmo <tih%hamartun.priv.no@localhost>]

Chavdar Ivanov <ci4ic4%gmail.com@localhost> writes:

> I am having the same cmake hangs as in this thread. I've attached the
> gdb 'thread apply all bt' output (collected with script).

That looks suspiciouly similar to the hangs I'm seeing with dhcpd on
amd64-current (note the mutex lock attempt, while nothing else looks
very interesting):

(gdb) thread apply all bt

Thread 7 (process 12269):
#0  0x00007e573a2a892a in ___lwp_park60 () from /usr/lib/libc.so.12
#1  0x00007e573e80a9a9 in pthread_cond_timedwait (cond=0x7e573fd67d08, mutex=0x7e573fd67cd8, abstime=0x0) at /usr/src/lib/libpthread/pthread_cond.c:167
#2  0x00007e573f01ed2e in isc_app_ctxrun (ctx=0x7e573fd67c80) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/app.c:340
#3  0x000000005664e624 in dispatch () at /usr/src/external/mpl/dhcp/lib/common/../../dist/common/dispatch.c:121
#4  0x000000005668aae7 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/external/mpl/dhcp/bin/server/../../dist/server/dhcpd.c:1114

Thread 6 (process 21463):
#0  0x00007e573a2a892a in ___lwp_park60 () from /usr/lib/libc.so.12
#1  0x00007e573e80a9a9 in pthread_cond_timedwait (cond=0x7e5740037850, mutex=0x7e5740037800, abstime=0x0) at /usr/src/lib/libpthread/pthread_cond.c:167
#2  0x00007e573f02a0a4 in dispatch (threadid=<optimized out>, manager=0x7e5740036800) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/task.c:1059
#3  run (queuep=<optimized out>) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/task.c:1346
#4  0x00007e573e80bee0 in pthread__create_tramp (cookie=0x7e574002e000) at /usr/src/lib/libpthread/pthread.c:560
#5  0x00007e573a2924e0 in ?? () from /usr/lib/libc.so.12
#6  0x0000000000400000 in ?? ()
#7  0x00007e5739800000 in ?? ()
#8  0x0000001003a0efff in ?? ()
#9  0x00007e57396000c0 in ?? ()
#10 0x00000000001fff40 in ?? ()
#11 0x0000000000000000 in ?? ()

Thread 5 (process 19116):
#0  0x00007e573a244d8a in _sys___kevent50 () from /usr/lib/libc.so.12
#1  0x00007e573e8079d8 in __kevent50 (fd=<optimized out>, ev=ev@entry=0x0, nev=nev@entry=0, rev=rev@entry=0x7e5740008000, nrev=nrev@entry=64, ts=ts@entry=0x0) at /usr/src/lib/libpthread/pthread_cancelstub.c:176
#2  0x00007e573f0223c4 in netthread (uap=0x7e5740039800) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/unix/socket.c:3519
#3  0x00007e573e80bee0 in pthread__create_tramp (cookie=0x7e574002fc00) at /usr/src/lib/libpthread/pthread.c:560
#4  0x00007e573a2924e0 in ?? () from /usr/lib/libc.so.12
#5  0x0000000000600000 in ?? ()
#6  0x00007e5739400000 in ?? ()
#7  0x0000002003a0efff in ?? ()
#8  0x00007e5737a000c0 in ?? ()
#9  0x00000000003fff40 in ?? ()
Backtrace stopped: Cannot access memory at address 0x7e5737800028

Thread 4 (process 25506):
#0  0x00007e573a2a892a in ___lwp_park60 () from /usr/lib/libc.so.12
#1  0x00007e573e80a9a9 in pthread_cond_timedwait (cond=0x7e574003a868, mutex=0x7e574003a810, abstime=0x0) at /usr/src/lib/libpthread/pthread_cond.c:167
#2  0x00007e573f028631 in run (uap=0x7e574003a800) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/timer.c:650
#3  0x00007e573e80bee0 in pthread__create_tramp (cookie=0x7e5740031800) at /usr/src/lib/libpthread/pthread.c:560
#4  0x00007e573a2924e0 in ?? () from /usr/lib/libc.so.12
Backtrace stopped: Cannot access memory at address 0x7e57367f0000

Thread 3 (process 26000):
#0  0x00007e573a2a892a in ___lwp_park60 () from /usr/lib/libc.so.12
#1  0x00007e573e80a9a9 in pthread_cond_timedwait (cond=0x7e573fd69cd0, mutex=0x7e573fd69c80, abstime=0x0) at /usr/src/lib/libpthread/pthread_cond.c:167
#2  0x00007e573f02a0a4 in dispatch (threadid=<optimized out>, manager=0x7e573fd68c80) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/task.c:1059
#3  run (queuep=<optimized out>) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/task.c:1346
#4  0x00007e573e80bee0 in pthread__create_tramp (cookie=0x7e5740033400) at /usr/src/lib/libpthread/pthread.c:560
#5  0x00007e573a2924e0 in ?? () from /usr/lib/libc.so.12
Backtrace stopped: Cannot access memory at address 0x7e57357e0000

Thread 2 (process 24520):
#0  0x00007e573a2a892a in ___lwp_park60 () from /usr/lib/libc.so.12
#1  0x00007e573e809791 in pthread__mutex_lock_slow (ptm=ptm@entry=0x7e573fd71158, ts=ts@entry=0x0) at /usr/src/lib/libpthread/pthread_mutex.c:363
#2  0x00007e573e809a44 in pthread_mutex_lock (ptm=0x7e573fd71158) at /usr/src/lib/libpthread/pthread_mutex.c:215
#3  pthread_mutex_lock (ptm=ptm@entry=0x7e573fd71158) at /usr/src/lib/libpthread/pthread_mutex.c:196
#4  0x00007e573f0224a8 in process_fd (writeable=false, readable=true, fd=<optimized out>, thread=0x7e573fd6bc80) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/unix/socket.c:3259
#5  process_fds (nevents=<optimized out>, events=<optimized out>, thread=0x7e573fd6bc80) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/unix/socket.c:3332
#6  netthread (uap=0x7e573fd6bc80) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/unix/socket.c:3621
#7  0x00007e573e80bee0 in pthread__create_tramp (cookie=0x7e5740027000) at /usr/src/lib/libpthread/pthread.c:560
#8  0x00007e573a2924e0 in ?? () from /usr/lib/libc.so.12
#9  0x0000000000200000 in ?? ()
#10 0x0000000000000000 in ?? ()

Thread 1 (process 9876):
#0  0x00007e573a2a892a in ___lwp_park60 () from /usr/lib/libc.so.12
#1  0x00007e573e80a9a9 in pthread_cond_timedwait (cond=0x7e573fd6cce8, mutex=0x7e573fd6cc90, abstime=0x0) at /usr/src/lib/libpthread/pthread_cond.c:167
#2  0x00007e573f028631 in run (uap=0x7e573fd6cc80) at /usr/src/external/mpl/bind/lib/libisc/../../dist/lib/isc/timer.c:650
#3  0x00007e573e80bee0 in pthread__create_tramp (cookie=0x7e5740028c00) at /usr/src/lib/libpthread/pthread.c:560
#4  0x00007e573a2924e0 in ?? () from /usr/lib/libc.so.12
Backtrace stopped: Cannot access memory at address 0x7e57331f0000

-tih
-- 
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