I have an Ubuntu 16.04 VM running in Virtualbox. I'm building kernel from git using make deb-pkg. After I install all the deb packages (including debug symbols) on the VM and restart it, I can see in uname -r output that the appropriate kernel was booted from. I'm passing the following parameters to the kernel: > kgdboc=ttyS0,115200 kgdbwait Once the kernel boots, I am able to connect to it via socat + gdb from host. I'm using the full uncompressed vmlinux file to start the gdb which contains all the debugging symbols. However, I can't see any of the symbols in backtrace etc. > $ du -sh vmlinux > 425M vmlinux > $ gdb vmlinux > 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 [gnu.org] > [...] > For help, type "help". > Type "apropos word" to search for commands related to "word"... > Reading symbols from vmlinux...done. > (gdb) target remote /dev/pts/2 > Remote debugging using /dev/pts/2 > 0xffffffffb113c5b4 in ?? () > (gdb) bt > #0 0xffffffffb113c5b4 in ?? () > #1 0xffffb035421c7dd0 in ?? () > #2 0xffffffffb113c60c in ?? () > #3 0xffffb035421c7e00 in ?? () > #4 0xffffffffb153035a in ?? () > #5 0x0000000000000002 in irq_stack_union () > #6 0x00000000013a7408 in ?? () > #7 0xffff8fb8bd0d3b00 in ?? () > #8 0xffffb035421c7e18 in ?? () > #9 0xffffffffb15307df in ?? () > #10 0xffff8fb8b8779900 in ?? () > #11 0xffffb035421c7e38 in ?? () > #12 0xffffffffb12ab412 in ?? () > #13 0xffff8fb8bd0d3b00 in ?? () Any ideas what am I doing wrong? Thanks, Kamran. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
