[RFC PATCH v2 1/1] powerpc: update ppc_save_regs to save current r1 in pt_regs

[Michael Ellerman]

On Thu, 15 Jun 2023 14:40:47 +0530, Aditya Gupta wrote:
> ppc_save_regs() skips one stack frame while saving the CPU register states.
> Instead of saving current R1, it pulls the previous stack frame pointer.
> 
> When vmcores caused by direct panic call (such as `echo c >
> /proc/sysrq-trigger`), are debugged with gdb, gdb fails to show the
> backtrace correctly. On further analysis, it was found that it was because
> of mismatch between r1 and NIP.
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc: update ppc_save_regs to save current r1 in pt_regs
      https://git.kernel.org/powerpc/c/b684c09f09e7a6af3794d4233ef785819e72db79

cheers