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