I did not explain myself well. By thread I mean kernel thread, and user thread. What i want to get is a back trace of ALL the programs running in user and kernel space. Your example is a single program, and the trace ends in userspace. Sorry for the missunderstunding. On Wed, Feb 10, 2016 at 11:32 AM, Anupam Kapoor <anupam.kapoor@xxxxxxxxx> wrote: > >>>>>> [2016-02-10T15:06:30+0530]: "Ricardo Ribalda Delgado" (ricardo-delgado): > ,----[ ricardo-delgado ] > | Unfortunately not :( But thanks for trying :) > `---- > seems to work just fine on a trivial program here: > < aside: hopefully, i will not be judged too harshly for c++ :) > > > ,---- > | anupam@fatcat cpu-stuff % gdb obj/affine-thread-to-cpu > | GNU gdb (GDB) 7.10.1 > | Copyright (C) 2015 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-unknown-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"... > | Reading symbols from obj/affine-thread-to-cpu...done. > | (gdb) core core.11717 > | warning: core file may not match specified executable file. > | [New LWP 11717] > | [New LWP 11718] > | [New LWP 11720] > | [New LWP 11721] > | [New LWP 11719] > | warning: Could not load shared library symbols for linux-vdso.so.1. > | Do you need "set solib-search-path" or "set sysroot"? > | [Thread debugging using libthread_db enabled] > | Using host libthread_db library "/usr/lib/libthread_db.so.1". > | Core was generated by `./obj/affine-thread-to-cpu'. > | Program terminated with signal SIGSEGV, Segmentation fault. > | #0 0x00007f4a34f9170d in pthread_join () from /usr/lib/libpthread.so.0 > | [Current thread is 1 (Thread 0x7f4a3536f740 (LWP 11717))] > | (gdb) thread apply all > | Please specify a command following the thread ID list > | (gdb) thread apply all bt > | > | Thread 5 (Thread 0x7f4a33b4d700 (LWP 11719)): > | #0 0x00007f4a34f9965d in nanosleep () from /usr/lib/libpthread.so.0 > | #1 0x0000000000401534 in std::this_thread::sleep_for<long, std::ratio<1l, 1000l> > (__rtime=...) at /usr/include/c++/5.3.0/thread:292 > | #2 <lambda()>::operator() (__closure=0x24d8de8) at affine-thread-to-cpu.cpp:27 > | #3 std::_Bind_simple<main(int, char**)::<lambda()>()>::_M_invoke<> (this=0x24d8de8) at /usr/include/c++/5.3.0/functional:1531 > | #4 std::_Bind_simple<main(int, char**)::<lambda()>()>::operator() (this=0x24d8de8) at /usr/include/c++/5.3.0/functional:1520 > | #5 std::thread::_Impl<std::_Bind_simple<main(int, char**)::<lambda()>()> >::_M_run(void) (this=0x24d8dd0) at /usr/include/c++/5.3.0/thread:115 > | #6 0x00007f4a34cbff40 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimized out>) > | at /build/gcc/src/gcc-5.3.0/libstdc++-v3/src/c++11/thread.cc:84 > | #7 0x00007f4a34f904a4 in start_thread () from /usr/lib/libpthread.so.0 > | #8 0x00007f4a3443813d in clone () from /usr/lib/libc.so.6 > | > | Thread 4 (Thread 0x7f4a32b4b700 (LWP 11721)): > | #0 0x00007f4a34f9965d in nanosleep () from /usr/lib/libpthread.so.0 > | #1 0x0000000000401534 in std::this_thread::sleep_for<long, std::ratio<1l, 1000l> > (__rtime=...) at /usr/include/c++/5.3.0/thread:292 > | #2 <lambda()>::operator() (__closure=0x24d90c8) at affine-thread-to-cpu.cpp:27 > | #3 std::_Bind_simple<main(int, char**)::<lambda()>()>::_M_invoke<> (this=0x24d90c8) at /usr/include/c++/5.3.0/functional:1531 > | #4 std::_Bind_simple<main(int, char**)::<lambda()>()>::operator() (this=0x24d90c8) at /usr/include/c++/5.3.0/functional:1520 > | #5 std::thread::_Impl<std::_Bind_simple<main(int, char**)::<lambda()>()> >::_M_run(void) (this=0x24d90b0) at /usr/include/c++/5.3.0/thread:115 > | #6 0x00007f4a34cbff40 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimized out>) > | at /build/gcc/src/gcc-5.3.0/libstdc++-v3/src/c++11/thread.cc:84 > | #7 0x00007f4a34f904a4 in start_thread () from /usr/lib/libpthread.so.0 > | #8 0x00007f4a3443813d in clone () from /usr/lib/libc.so.6 > | > | Thread 3 (Thread 0x7f4a3334c700 (LWP 11720)): > | #0 0x00007f4a34f9965d in nanosleep () from /usr/lib/libpthread.so.0 > | #1 0x0000000000401534 in std::this_thread::sleep_for<long, std::ratio<1l, 1000l> > (__rtime=...) at /usr/include/c++/5.3.0/thread:292 > | #2 <lambda()>::operator() (__closure=0x24d8f58) at affine-thread-to-cpu.cpp:27 > | #3 std::_Bind_simple<main(int, char**)::<lambda()>()>::_M_invoke<> (this=0x24d8f58) at /usr/include/c++/5.3.0/functional:1531 > | #4 std::_Bind_simple<main(int, char**)::<lambda()>()>::operator() (this=0x24d8f58) at /usr/include/c++/5.3.0/functional:1520 > | #5 std::thread::_Impl<std::_Bind_simple<main(int, char**)::<lambda()>()> >::_M_run(void) (this=0x24d8f40) at /usr/include/c++/5.3.0/thread:115 > | #6 0x00007f4a34cbff40 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimized out>) > | at /build/gcc/src/gcc-5.3.0/libstdc++-v3/src/c++11/thread.cc:84 > | #7 0x00007f4a34f904a4 in start_thread () from /usr/lib/libpthread.so.0 > | #8 0x00007f4a3443813d in clone () from /usr/lib/libc.so.6 > | > | Thread 2 (Thread 0x7f4a3434e700 (LWP 11718)): > | #0 0x00007f4a34f9965d in nanosleep () from /usr/lib/libpthread.so.0 > | #1 0x0000000000401534 in std::this_thread::sleep_for<long, std::ratio<1l, 1000l> > (__rtime=...) at /usr/include/c++/5.3.0/thread:292 > | #2 <lambda()>::operator() (__closure=0x24d8c78) at affine-thread-to-cpu.cpp:27 > | #3 std::_Bind_simple<main(int, char**)::<lambda()>()>::_M_invoke<> (this=0x24d8c78) at /usr/include/c++/5.3.0/functional:1531 > | #4 std::_Bind_simple<main(int, char**)::<lambda()>()>::operator() (this=0x24d8c78) at /usr/include/c++/5.3.0/functional:1520 > | #5 std::thread::_Impl<std::_Bind_simple<main(int, char**)::<lambda()>()> >::_M_run(void) (this=0x24d8c60) at /usr/include/c++/5.3.0/thread:115 > | #6 0x00007f4a34cbff40 in std::(anonymous namespace)::execute_native_thread_routine (__p=<optimized out>) > | at /build/gcc/src/gcc-5.3.0/libstdc++-v3/src/c++11/thread.cc:84 > | #7 0x00007f4a34f904a4 in start_thread () from /usr/lib/libpthread.so.0 > | #8 0x00007f4a3443813d in clone () from /usr/lib/libc.so.6 > | > | Thread 1 (Thread 0x7f4a3536f740 (LWP 11717)): > | #0 0x00007f4a34f9170d in pthread_join () from /usr/lib/libpthread.so.0 > | #1 0x00007f4a34cbfe57 in __gthread_join (__value_ptr=0x0, __threadid=<optimized out>) > | at /build/gcc/src/gcc-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu/bits/gthr-default.h:668 > | #2 std::thread::join (this=this@entry=0x24d8c20) at /build/gcc/src/gcc-5.3.0/libstdc++-v3/src/c++11/thread.cc:107 > | #3 0x0000000000401248 in main (argc=<optimized out>, argv=<optimized out>) at affine-thread-to-cpu.cpp:45 > | (gdb) > | > `---- > > -- > > kind regards > anupam -- Ricardo Ribalda _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
