Bug 477985 - incorrect ioctl use causes tool abort
incorrect ioctl use causes tool abort
Status: CLOSED NOTABUG
Product: Fedora
Classification: Fedora
Component: hdparm (Show other bugs)
10
All Linux
low Severity medium
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Assigned To: Karsten Hopp
Fedora Extras Quality Assurance
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2008-12-26 18:27 EST by John Mellor
Modified: 2008-12-29 15:30 EST (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2008-12-29 15:30:34 EST
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Description John Mellor 2008-12-26 18:27:00 EST
Description of problem:
hdparm is incorrectly coded for use in F10, as shown by the following output:
# hdparm -d --direct /dev/sda
/dev/sda:
 HDIO_GET_DMA failed: Inappropriate ioctl for device


Version-Release number of selected component (if applicable):
hdparm-8.6-1.fc9.i386


How reproducible:
every time


Steps to Reproduce:
1.see above

  
Actual results:
ioctl usage error


Expected results:
hdparm functionality, as documented.


Additional info:
Comment 1 Karsten Hopp 2008-12-29 15:30:34 EST
You can't use hdparm to set DMA mode on SCSI devices or scsi emulated devices.
AFAIK DMA is enabled per default for most hard disks with the exception of some blacklisted disks. hdparm can't tell you if SCSI devices have DMA enabled or disabled, but maybe sdparm can do that.

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