Bug 800484

Summary: regression in 6.2's HDIO_DRIVE_CMD ioctl
Product: Red Hat Enterprise Linux 6 Reporter: Levente Farkas <lfarkas>
Component: kernelAssignee: Prarit Bhargava <prarit>
Status: CLOSED NOTABUG QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.2CC: bubrown, cww
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2014-05-21 13:13:55 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Levente Farkas 2012-03-06 14:47:49 UTC 
until now (this means from rhel 5.0-rhel 6.1) both this command works:
hdparm -I /dev/sda
hdparm -I /dev/sda1
after rhel-6.2 the second is not working. the core reason is the 
ioctl(fd, HDIO_DRIVE_CMD, args);
kernel ioctl command which no longer works when called with the /dev/sda1's fd, but still working when use the /dev/sda's fd).
Comment 4 RHEL Program Management 2012-05-03 04:46:10 UTC 
Since RHEL 6.3 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.