Re: toolchain/56330: amd64 gdb issues

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR toolchain/56330; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: toolchain/56330: amd64 gdb issues
Date: Wed, 7 Dec 2022 19:45:37 +0100

 This is not a plain gdb issue, the ptrace part causes serious kernel
 trouble. After trying to gdb a hanging firefox in -current (easily 
 reproducable) I ended up with all firefox procs as zombies and no
 progress made:
 
   PID TTY   STAT     TIME COMMAND
 [..]
  9579 ?     DXEl  0:54.86 (firefox)
  3117 ?     Z     0:00.00 - (firefox)
  4376 ?     Z     0:00.00 - (firefox)
  6129 ?     Z     0:00.00 - (firefox)
  8782 ?     Z     0:00.00 - (firefox)
  9735 ?     Z     0:00.00 - (firefox)
 10601 ?     Z     0:00.00 - (firefox)
 10994 ?     Z     0:00.00 - (firefox)
 11404 ?     Z     0:00.00 - (firefox)
 11824 ?     Z     0:00.00 - (firefox)
 
 Everything else was still working fine. Process 9579 is still considered being
 traced (X) and uninteruptible waiting (D) and already exiting (E), but making
 no progress with that. Besides a reboot not much that I can do to fix it - duh!
 
 Martin