堆栈跟踪除了在Debian上使用gdb从核心转储中获取__nanosleep_nocancel之外，什么都没有显示。分析内核生成的coredump中的线程堆栈跟踪时会观察到这种情况，发现异常时会从应用程序触发该跟踪
Thread 5 (Thread 0x7f8b307bf700 (LWP 27000)):
#0 ......Application function .....
#1......Application function .....
#2 ......Application function .....
#3 ......Application function .....
#4 0x00007f8b303c9494 in start_thread () from /lib/x86_64-linux- gnu/libpthread.so.0
#5 0x00007f8b2f666aff in __libc_ifunc_impl_list () from /lib/x86_64-linux-gnu/libc.so.6
#6 0x0000000000000000 in ?? ()
Thread 3 (Thread 0x7f8b30685700 (LWP 27025)):
#0 0x00007f8b303d27dd in __nanosleep_nocancel () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x0000000000000000 in ?? ()
Thread 2 (Thread 0x7f8b2eb31700 (LWP 27032)):
#0 0x00007f8b303d27dd in __nanosleep_nocancel () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x0000000000000000 in ?? ()
Thread 1 (Thread 0x7f8b306c3700 (LWP 27022)):
#0 0x00007f8b303d2f9f in raise () from /lib/x86_64-linux- gnu/libpthread.so.0
这里的线程2和3的堆栈跟踪显示__nanosleep_nocancel，我希望其中的堆栈跟踪类似于线程5。
对此，任何线索都将不胜感激。