kern/166071: High CPU Utilization on HylaFAX processes

Mark Linimon linimon at
Mon Apr 2 06:40:14 UTC 2012

The following reply was made to PR kern/166071; it has been noted by GNATS.

From: Mark Linimon <linimon at>
To: bug-followup at
Subject: Re: kern/166071: High CPU Utilization on HylaFAX processes
Date: Mon, 2 Apr 2012 01:37:53 -0500

 ----- Forwarded message from Ryan Noll <rnoll.bsd at> -----
 Date: Mon, 19 Mar 2012 18:18:00 -0700
 From: Ryan Noll <rnoll.bsd at>
 To: freebsd-bugs at
 Subject: Re: kern/166071: High CPU Utilization on HylaFAX processes
 The PR is available at:
 Below is some more information about this particular bug. I thought this
 could be a kernel bug, but maybe it could be a bug in the program that the
 9.0-RELEASE kernel exposed.
 If the faxq and hfaxd processes are started (via their startup script) and
 then faxgetty is started all appears fine.
 However, while sending a fax the faxgetty process is again at 100%. The
 truss output for faxgetty is not included because it is the same as stated
 earlier. After the fax has completed, faxgetty remains at 100%.
 Should this still be considered a kernel bug or should I try contacting the
 HylaFAX maintainers?
 Note that the configuration is run in a jail with a USB (cuaU0, MultiTech
 MultiModem MT9234ZBA-USB-CDC) and serial modem (cuau0, MultiTech MultiModem
 MT9234ZBA-NAM). This configuration did work under 8.2-RELEASE-p6. Also,
 this message is shown during the initial setup probe: stty: stdout appears
 redirected, but stdin is the control descriptor.
 Thank you for your time.
 ----- End forwarded message -----

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