Am 29.03.2015 um 15:47 schrieb Waldemar Brodkorb:
Hi Stefan,
Stefan Weil wrote,
You can debug the kernel panic by attaching a cross debugger to the
running kernel.
If you have a kernel image with debug symbols, this is very comfortable.
How would I do this?
Tried to start qemu with -s -S and then attach with my cross-gdb
using the kernel with debug symbols. But gdb does not recognize the
panic:
Command: mdev -s
Command: ifconfig lo 127.0.0.1 up
Execution Finished, Exiting
Sash command shell (version 1.1.1)
/> Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
---[ end Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
Yes, the cross gdb won't recognize a kernel panic.
But you can set a breakpoint on the kernel code
which handles such panics, on one of the functions
shown in the kernel panic backtrace, or on printk.
Regards
Stefan
