Hi, Now I get a crash because receiving signal SIGSEGV as below.
#0 arena_alloc (arena=<optimized out>) at /usr/src/debug/liburcu/0.9.1+git5fd33b1e5003ca316bd314ec3fd1447f6199a282-r0/git/urcu-bp.c:432 #1 add_thread () at /usr/src/debug/liburcu/0.9.1+git5fd33b1e5003ca316bd314ec3fd1447f6199a282-r0/git/urcu-bp.c:462 #2 rcu_bp_register () at /usr/src/debug/liburcu/0.9.1+git5fd33b1e5003ca316bd314ec3fd1447f6199a282-r0/git/urcu-bp.c:541 I read the code of urcu-bp.c and found that "if (chunk->data_len - chunk->used < len)" is in 432 line. So I guess that the chunk is a illegal pointer. Below is the function rcu_bp_exit(). static void rcu_bp_exit(void) { mutex_lock(&init_lock); if (!--rcu_bp_refcount) { struct registry_chunk *chunk, *tmp; int ret; cds_list_for_each_entry_safe(chunk, tmp, ®istry_arena.chunk_list, node) { munmap(chunk, chunk->data_len + sizeof(struct registry_chunk)); } ret = pthread_key_delete(urcu_bp_key); if (ret) abort(); } mutex_unlock(&init_lock); } My question is below. Why did not delete the chunk from registry_arena.chunk_list before munmap a chunk? Thanks, xin
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