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copied!<p>Three memory leaks are detected by mdb and libumem with your code here:</p> <pre><code>cat > leak.c <<% int main() { void *buff; buff = malloc(128); buff = malloc(60); buff = malloc(30); buff = malloc(16); free(buff); sleep(180); } % gcc -g leak.c -o leak pkill leak UMEM_DEBUG=default UMEM_LOGGING=transaction LD_PRELOAD=libumem.so.1 leak & sleep 5 rm -f core.leak.* gcore -o core.leak $(pgrep leak) mdb leak core.leak.* <<% ::findleaks -d % gcore: core.leak.1815 dumped CACHE LEAKED BUFCTL CALLER 0807f010 1 0808b4b8 main+0x29 0807d810 1 0808d088 main+0x39 0807d010 1 08092cd0 main+0x49 ------------------------------------------------------------------------ Total 3 buffers, 280 bytes umem_alloc_160 leak: 1 buffer, 160 bytes ADDR BUFADDR TIMESTAMP THREAD CACHE LASTLOG CONTENTS 808b4b8 8088f28 1af921ab662 1 807f010 806c000 0 libumem.so.1`umem_cache_alloc_debug+0x144 libumem.so.1`umem_cache_alloc+0x19a libumem.so.1`umem_alloc+0xcd libumem.so.1`malloc+0x2a main+0x29 _start+0x83 umem_alloc_80 leak: 1 buffer, 80 bytes ADDR BUFADDR TIMESTAMP THREAD CACHE LASTLOG CONTENTS 808d088 808cf68 1af921c11eb 1 807d810 806c064 0 libumem.so.1`umem_cache_alloc_debug+0x144 libumem.so.1`umem_cache_alloc+0x19a libumem.so.1`umem_alloc+0xcd libumem.so.1`malloc+0x2a main+0x39 _start+0x83 umem_alloc_40 leak: 1 buffer, 40 bytes ADDR BUFADDR TIMESTAMP THREAD CACHE LASTLOG CONTENTS 8092cd0 808efc8 1af921f2bd2 1 807d010 806c0c8 0 libumem.so.1`umem_cache_alloc_debug+0x144 libumem.so.1`umem_cache_alloc+0x19a libumem.so.1`umem_alloc+0xcd libumem.so.1`malloc+0x2a main+0x49 _start+0x83 </code></pre>

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