Re: BUG: KASAN: stack-out-of-bounds in unwind_next_frame+0x1df5/0x2650

[Peter Zijlstra]

On Tue, Feb 02, 2021 at 07:09:44PM -0800, Ivan Babrou wrote:
> On Thu, Jan 28, 2021 at 7:35 PM Ivan Babrou <ivan@xxxxxxxxxxxxxx> wrote:

> > ==================================================================
> > [  128.368523][    C0] BUG: KASAN: stack-out-of-bounds in
> > unwind_next_frame (arch/x86/kernel/unwind_orc.c:371
> > arch/x86/kernel/unwind_orc.c:544)
> > [  128.369744][    C0] Read of size 8 at addr ffff88802fceede0 by task
> > kworker/u2:2/591

Can you pretty please not line-wrap console output? It's unreadable.

> edfd9b7838ba5e47f19ad8466d0565aba5c59bf0 is the first bad commit
> commit edfd9b7838ba5e47f19ad8466d0565aba5c59bf0

Not sure what tree you're on, but that's not the upstream commit.

> Author: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
> Date:   Tue Aug 18 15:57:52 2020 +0200
> 
>     tracepoint: Optimize using static_call()
> 

There's a known issue with that patch, can you try:

  http://lkml.kernel.org/r/20210202220121.435051654@xxxxxxxxxxx