``` # gdb `which nettop` core GNU gdb (Gentoo 8.1 p1) 8.1 Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-pc-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <https://bugs.gentoo.org/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/sbin/nettop...(no debugging symbols found)...done. [New LWP 29876] [New LWP 29874] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `nettop'. Program terminated with signal SIGFPE, Arithmetic exception. #0 0x00000000004028a0 in ?? () [Current thread is 1 (Thread 0x7ffff6ac8700 (LWP 29876))] (gdb) bt #0 0x00000000004028a0 in ?? () #1 0x0000000000403d6e in ?? () #2 0x00007ffff7bbf92a in start_thread (arg=0x7ffff6ac8700) at pthread_create.c:465 #3 0x00007ffff772c1df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 (gdb) ```
Created attachment 520556 [details] emerge --info nettop
Do not CC architecture teams yourself. It's completely pointless.
(In reply to Xuefer from comment #0) > Program terminated with signal SIGFPE, Arithmetic exception. > #0 0x00000000004028a0 in ?? () Could you re-emerge with CFLAGS=-g so we can see what "??" is?
``` Program terminated with signal SIGFPE, Arithmetic exception. #0 0x00000000004028f0 in screen_update () at nettop.c:484 484 valp = (sorted[i]->count * 10000) / sump; [Current thread is 1 (LWP 3193)] (gdb) bt #0 0x00000000004028f0 in screen_update () at nettop.c:484 #1 0x0000000000403dbe in ui_run () at nettop.c:670 #2 0x00007ffff7bbda76 in start_thread () from /lib64/libpthread.so.0 #3 0x00007ffff772605f in clone () from /lib64/libc.so.6 ```
Created attachment 520870 [details] build.log.gz
(In reply to Xuefer from comment #4) > ``` > Program terminated with signal SIGFPE, Arithmetic exception. > #0 0x00000000004028f0 in screen_update () at nettop.c:484 > 484 valp = (sorted[i]->count * 10000) / sump; > [Current thread is 1 (LWP 3193)] > (gdb) bt > #0 0x00000000004028f0 in screen_update () at nettop.c:484 valp = (sorted[i]->count * 10000) / sump; Apparently sump can be 0 sometimes.
