On Thu, 17 Jun 2021 13:55:06 -0400, Athira Rajeev wrote:
> On systems without any specific PMU driver support registered, running
> perf record causes Oops.
>
> The relevant portion from call trace:
>
> BUG: Kernel NULL pointer dereference on read at 0x0040
> Faulting instruction address:
On systems without any specific PMU driver support registered, running
perf record causes Oops.
The relevant portion from call trace:
BUG: Kernel NULL pointer dereference on read at 0x0040
Faulting instruction address: 0xc0021f0c
Oops: Kernel access of bad area, sig: 11 [#1]
BE PAGE_SIZE=4K