named pipes memory leak?

Lukas Ertl l.ertl at univie.ac.at
Mon Nov 10 14:00:55 PST 2003


On Mon, 10 Nov 2003, Don Lewis wrote:

> On 10 Nov, Lukas Ertl wrote:
> >
> > The following shell script freezes a machine in several minutes and needs
> > a power cycle.  You can see the increasing memory in vmstat -z (unpcb) and
> > netstat -u.  The kernel is FreeBSD 5.1-CURRENT Tue Nov 4 14:08:23 CET 2003.
> >
> > ---8<---
> > #/bin/sh
> >
> > FIFO=/tmp/foo
> >
> > for i in `jot 50000 1`; do
> >    mkfifo ${FIFO}
> >    echo blubb > ${FIFO} &
> >    kill $!
> >    rm ${FIFO}
> > done
> > ---8<---
>
> If fifo_open() is interrupted, fifo_close() never gets called, and the
> resources are not recovered.  I wish doing the resource recovery in
> fifo_inactive() would have worked ...
>
> Try this patch:

Thanks, your patch seems so solve this problem effectively.

regards,
le

-- 
Lukas Ertl                             eMail: l.ertl at univie.ac.at
UNIX Systemadministrator               Tel.:  (+43 1) 4277-14073
Vienna University Computer Center      Fax.:  (+43 1) 4277-9140
University of Vienna                   http://mailbox.univie.ac.at/~le/


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