[asterisk-bugs] [DAHDI-linux 0014808]: ioctls from 32bit userspace on 64bit kernel

[Asterisk Bug Tracker]

The following issue has been UPDATED. 
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http://bugs.digium.com/view.php?id=14808 
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Reported By:                tzafrir
Assigned To:                
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Project:                    DAHDI-linux
Issue ID:                   14808
Category:                   General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
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Date Submitted:             2009-04-01 18:38 CDT
Last Modified:              2009-04-01 18:40 CDT
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Summary:                    ioctls from 32bit userspace on 64bit kernel
Description: 
Copy an installation of a 32bit system onto a subdirectory (chroot_dir/ ,
for this example) of a 64bit system. 
Connect a DAHDI device and load its drivers.

Now run:

  mount -o bind /dev chroot_dir/dev
  chroot chroot_dir
  mount /proc
  mount /sys
  dahdi_genconf
  dahdi_cfg

The last command will generate errors:

DAHDI_CHANCONFIG failed on channel 1: Invalid argument (22)

Such a case should probably be handled through a compat_ioctl
(linux/compat.h). More reading is needed :-)

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Issue History 
Date Modified    Username       Field                    Change               
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2009-04-01 18:40 tzafrir        Additional Information Updated                  
 
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