On 07/04/2016 1:38 PM, Yuxuan Shui wrote:
I have a D shared library which is loaded by a C shared library, which
is in turn loaded by my main program.

When the D library tries to allocate something, the whole program get an
SIGSEGV in __GI___pthread_mutex_lock.

Stack trace:

(gdb) bt
#0  __GI___pthread_mutex_lock (mutex=0x7fffffffc1b8) at
../nptl/pthread_mutex_lock.c:66
#1  0x00007fffe19cbeef in
gc.gc.GC.__T9runLockedS47_D2gc2gc2GC12mallocNoSyncMFNbmkKmxC8TypeInfoZPvS21_D2gc2gc10mallocTimelS21_D2gc2gc10numMallocslTmTkTmTxC8TypeInfoZ.runLocked()
() from /var/services/homes/.../install/linux/lib64/libphobos2.so.0.70
#2  0x00007fffe19c4f66 in gc.gc.GC.malloc() () from
/var/services/homes/.../install/linux/lib64/libphobos2.so.0.70
#3  0x00007fffe19cda18 in gc_qalloc () from
/var/services/homes/.../install/linux/lib64/libphobos2.so.0.70
#4  0x00007fffe19e17dd in rt.lifetime.__arrayAlloc() () from
/var/services/homes/.../install/linux/lib64/libphobos2.so.0.70
#5  0x00007fffe19e6d26 in _d_arrayliteralTX () from
/var/services/homes/.../install/linux/lib64/libphobos2.so.0.70

What can be the problem?

Have you started D's runtime?

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