INSIST(qs->s_wbuf == NULL) failed

[Simon Waters]

Éric Allard wrote:
> 
> What is the problem and what is the solution?

The INSIST is a mechanism ISC use to ensure the program doesn't
reach inappropriate conditions. Your BIND program just hit the
software equivalent of a safety guard.

The temporary fix is to put named restart in a loop, so it
restarts automatically on crashing :(

I dare say ISC will want more details of under what condition
this occurs. Does it claim to be doing anything special or
unusual at the point it fails?

I don't have the 8.3.1 source to hand, I run BIND 9, which also
presents another approach to not having this particular problem!
BIND 9 comes with a nanny script to restart it automatically if
it fails, but it has never crashed on me (or any of it's
development versions either).