> On 11-Sep-2023, at 2:44 PM, Aditya Gupta <[email protected]> wrote:
>
> Presently, while reading a vmcore, makedumpfile uses
> `cur_cpu_spec.mmu_features` to decide whether the crashed system had
> RADIX MMU or not.
>
> Currently, makedumpfile fails to get the `cur_cpu_spec` symbol (unless
> a vmlinux is passed with the `-x` flag to makedumpfile), and hence
> assigns offsets and shifts (such as pgd_offset_l4) incorrecly considering
> MMU to be hash MMU.
>
> Add `cur_cpu_spec` symbol and offset of `mmu_features` in the
> `cpu_spec` struct, to VMCOREINFO, so that the symbol address and offset
> is accessible to makedumpfile, without needing the vmlinux file
>
> Signed-off-by: Aditya Gupta <[email protected]>
> ---
Thanks for the patch. With this patch applied (along with makedumpfile changes)
I am able to capture vmcore against a kernel which contains commit 8dc9a0ad0c3e
Reported-by: Sachin Sant <[email protected]>
Tested-by: Sachin Sant <[email protected]>
- Sachin
