On Thu, 2017-11-30 at 09:05:54 UTC, Mahesh J Salgaonkar wrote:
> From: Mahesh Salgaonkar <mah...@linux.vnet.ibm.com>
>
> radix__flush_tlb_all() is called only in kexec path in real mode and any
> tracepoints at this stage will make kexec to fail if enabled.
>
> To verify enable tlbie trace before kexec.
>
> $ echo 1 > /sys/kernel/debug/tracing/events/powerpc/tlbie/enable
> == kexec into new kernel and kexec fails.
>
> Fix this by not calling trace_tlbie from radix__flush_tlb_all().
>
> Fixes: 0428491cba92 ("powerpc/mm: Trace tlbie(l) instructions")
> Signed-off-by: Mahesh Salgaonkar <mah...@linux.vnet.ibm.com>
> Acked-by: Balbir Singh <bsinghar...@gmail.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/8d81296cfcce89013a714feb8d2500
cheers
