Re: [stable 4.19] [PANIC]: tracing: Centralize preemptirq tracepoints and unify their usage

[Greg Kroah-Hartman]

On Fri, Sep 25, 2020 at 10:13:05AM +0530, Naresh Kamboju wrote:
> >From stable rc 4.18.1 onwards to today's stable rc 4.19.147
> 
> There are two problems  while running LTP tracing tests
> 1) kernel panic  on i386, qemu_i386, x86_64 and qemu_x86_64 [1]
> 2) " segfault at 0 ip " and "Code: Bad RIP value" on x86_64 and qemu_x86_64 [2]
> Please refer to the full test logs from below links.
> 
> The first bad commit found by git bisect.
>    commit: c3bc8fd637a9623f5c507bd18f9677effbddf584
>    tracing: Centralize preemptirq tracepoints and unify their usage
> 
> Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>

So this also is reproducable in 5.4 and Linus's tree right now?

Or are newer kernels working fine?

thanks,

greg k-h