Hi
I´m trying to debug a i386 kernel hang using qemu.Problem happens when,inside my guest, i send a SIGKILL to a realtime process (openais aisexec cluster daemon).This hangs kernel exactly as in real hardware!.
So I do :
gdb ./vmlinux
(gdb) target remote localhost:1234
(gdb) continue
but when I send the signal from guest shell nothing happens in gdb.I´ve used the GDB "handle 9 pass" option with same result.If I do a CTRL+C in gdb and a backtrace, I´m not sure if that shows the kernel status when i sent kill -9 or is the status when that SIGINT is received what I see.
Using qemu...how could I know backtrace when the SIGKILL signal is received?.What it the backtrace I see when I do a CTRL+C
inside gdb?
Thank you