Re: Zsh 4.3.12: subshell in midnight commander: precmd: 15: bad file descriptor

[Peter Stephenson <Peter.Stephenson@csr.com>]

On Mon, 18 Jul 2011 10:26:27 +0200
Pavel Reznicek <reznicek@ipnp.troja.mff.cuni.cz> wrote:
>    after upgrading to zsh 4.3.12 (in debian), I am having problems running 
> midnight commander in zsh (going back to zsh version 4.3.10 it works 
> fine). The symptom is that when trying to use the subshell in mc, it 
> complains about:
> 
> precmd: 15: bad file descriptor
> 
> and the mc session get hanged. Of course it could be bug in mc and not 
> zsh, but since this behaviour is not seen with zsh 4.3.10, the zsh updates 
> since that version can tell what is going on. Browsing the mc source code, 
> the precmd command defined in there is:
> 
> precmd(){ pwd>&%d;kill -STOP $$ }
> 
> Would some have an idea why this precmd command would cause the error 
> message above in connection of the updateds between zsh 4.3.10 and 4.3.12 
> ?

This could well be associated with a job control change which I hope was
fixed by Bart in zsh-workers/29481
(http://www.zsh.org/mla/workers/2011/msg00915.html).

If it does fix it, it might well be worth releasing a 4.3.13 with this
in.

-- 
Peter Stephenson <pws@csr.com>            Software Engineer
Tel: +44 (0)1223 692070                   Cambridge Silicon Radio Limited
Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, UK


Member of the CSR plc group of companies. CSR plc registered in England and Wales, registered number 4187346, registered office Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom
More information can be found at www.csr.com. Follow CSR on Twitter at http://twitter.com/CSR_PLC and read our blog at www.csr.com/blog