>The mutex functions are not async-signal safe. What this means is that they should not be called from a signal handler. In particular, calling pthread_mutex_lock or pthread_mutex_unlock from a signal handler may deadlock the calling thread. 这里提到 async-signal-safe 的概念,一个函数是 asy...
Linux 上的程序可以注册信号处理函数(signal handler)用于处理信号,signal handler 不能随便调用,否则可能一不留神就死锁了,我们曾在这个问题上反复踩坑。...
#5 <signal handler called> #6 0x00007f3ee2ae5795 in malloc_consolidate () from /lib64/libc.so.6 #7 0x00007f3ee2ae8612 in _int_malloc () from /lib64/libc.so.6 #8 0x00007f3ee2ae9a3d in malloc () from /lib64/libc.so.6 ...
(exitval=1) at main.c:1750#4 0x00007f9047442520 in <signal handler called> () at /lib/x86_64-linux-gnu/libc.so.6#5 object_clear (obj=0x559d1cba7720) at vim9class.c:1494#6 object_unref (obj=0x559d1cba7720) at vim9class.c:1511#7 0x0000559d1b00051a in clear_tv (varp=varp@...
(gdb) backtrace #0 0x00000008014b09df in ?? () <snip> # 1505 <signal handler called> # 1506 0x0000000000000000 in ?? () Previous frame inner to this frame (corrupt stack?) (gdb) (gdb) quit This looks like a stack overflow, but there's not really much we can do ...
If the signal causes a handler to be called, raise() will only return after the signal handler has returned. 函数参数 sig 函数返回值 raise() returns 0 on success, and non-zero for failure. 成功返回0,失败返回非0值。/*** >File Name : test.c >Author : Mindtechnist >Company : Mindtech...
(sig=6) at /export/home/pb2/build/sb_0-17781605-1454370718.35/mysql-5.7.11/sql/signal_handler.cc:220 #3 <signal handler called> #4 0x00007f2e0c9365d7 in raise () from /lib64/libc.so.6 #5 0x00007f2e0c937cc8 in abort () from /lib64/libc.so.6 #6 0x0000000001a337a7 in ut...
(gdb) fr 3 #3 handler::ha_statistic_increment (this=0x2ab90cb0, offset=&system_status_var::ha_write_count) at /export/home/pb2/build/sb_0-10188268-1378799579.95/rpm/BUILD/mysql-5.6.14/mysql-5.6.14/sql/handler.cc:2387 2387 /export/home/pb2/build/sb_0-10188268-1378799579.95/rpm/BUIL...
(gdb) where#0 0x60000000e3051cd0:1 in signal_handler_catch () at ousig.c:606#1 <signal handler called>#2 0x60000000e3051cd0:1 in signal_handler_catch () at ousig.c:606#3 <signal handler called>#4 0x60000000e25fa580:1 in real_malloc+0x1c1 () from /usr/lib/hpu...
() [Current thread is 1 (Thread 0x7ffff7f7b700 (LWP 6355))] (gdb) bt #0 0x000000000043e590 in ?? () #1 0x00000000004422e3 in ?? () #2 <signal handler called> #3 0x00007ffff7e2dfef in select () from /lib64/libc.so.6 #4 0x00007ffff7f82471 in wait_data (readfd=<...