Following Mario's steps, I was blocked in the fourth step. The program hanged out and it doesn't work to press ctrl + c:
PID UTIL. PR NI VIRT RES SHR S %CPU %MEM TEMPS+ COM. 17208 root 20 0 236256 10632 9352 R 99,3 0,1 2:51.77 fwupd 17756 root 20 0 236256 10732 9456 R 99,0 0,1 1:35.75 fwupd 17740 root 20 0 236256 10816 9536 R 92,0 0,1 2:01.69 fwupd root@erkang-XPS-13-9343:~# gdb 2>&1 | tee gdb-fwupd.txt GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1 Copyright (C) 2016 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-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. 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". (gdb) handle SIG33 pass nostop noprint Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) set pagination 0 (gdb) attach 17208 Attaching to process 17208 [New LWP 17219] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". __stpcpy_sse2 () at ../sysdeps/x86_64/multiarch/../strcpy.S:29 29 ../sysdeps/x86_64/multiarch/../strcpy.S: Aucun fichier ou dossier de ce type. (gdb) continue Continuing. ^C ^C ^C ^C Following Richard's indication, the command simply blocked.. I didn't get any output: root@erkang-XPS-13-9343:~# appstream-util search notgoingtoexist --verbose -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1591868 Title: fwupd consuming 100% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fwupd/+bug/1591868/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
