[Bug 11751] New: chrt Segmentation fault

[Denys Vlasenko]

On Thu, Apr 4, 2019 at 5:48 PM <bugzilla at busybox.net> wrote:
>
> https://bugs.busybox.net/show_bug.cgi?id=11751
>
>             Bug ID: 11751
>            Summary: chrt Segmentation fault
>            Product: Busybox
>            Version: 1.29.x
>           Hardware: Other
>                 OS: Linux
>             Status: NEW
>           Severity: normal
>           Priority: P5
>          Component: Other
>           Assignee: unassigned at busybox.net
>           Reporter: yangtze31 at gmail.com
>                 CC: busybox-cvs at busybox.net
>   Target Milestone: ---
>
> chrt woks with Buildroot 2018.02.x, now Segmentation fault with Buildroot
> 2019.02.1
>
> I don't know how to debug.
>
> pid 198 is one of the four threads of mpd.
> chrt works with others pids, but with this one:
> # chrt -p 198
> Segmentation fault

can you strace this invocation?