Re: «run_pending_traps: bad value in trap_list» when `jobs` is run a trap

[Gioele Barabucci]

On 03/07/24 15:33, Chet Ramey wrote:
> On 7/1/24 4:45 PM, Gioele Barabucci wrote:
> > the following script (reduced from <https://bugs.debian.org/417946>)
> >
> >      #!/bin/bash
> >      childfinished () { echo "jobs: $(jobs)"; }
> >      trap childfinished SIGCHLD
> >      sleep 1 &
> >      wait
> >
> > causes bash 5.2.21 to output
> >
> >      ./par.sh: line 2: warning: run_pending_traps:
> >      bad value in trap_list[17]: 0x5625e6fa43d0
> >
> > Does this warning hint at something like a dangling reference that 
> > should be fixed, or can it be safely ignored?
>
> It's warning you that you're recursively calling the SIGCHLD trap handler.
> It's clearer when the debugging messages are enabled:

Could the message be reworded to mention that explicitly?

line 2: warning: SIGCHLD trap handled called recursively

Regards,

--
Gioele Barabucci