Bug 1283832 - when call local_irq_disable（）; to block local cpu from all hard irq, it goes wrong!
Summary: when call local_irq_disable（）; to block local cpu from all hard irq, it goes ...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise MRG
Classification: Red Hat
Component: realtime-kernel
Version: 3.1
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
: ---
Assignee: Red Hat Real Time Maintenance
QA Contact: MRG Quality Engineering
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-11-20 04:08 UTC by lingfei
Modified: 2015-11-20 15:05 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-11-20 15:05:55 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
3.10.0-229.rt56.161.el6rt.x86_64/include/asm-generic/irqflags.h (1.47 KB, text/plain)
2015-11-20 04:08 UTC, lingfei 		no flags Details
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Description lingfei 2015-11-20 04:08:50 UTC 
Created attachment 1096988 [details]
3.10.0-229.rt56.161.el6rt.x86_64/include/asm-generic/irqflags.h

Description of problem:


Version-Release number of selected component (if applicable):
Kernel version ：Redhat-6.7 3.10.0-229.rt56.161.el6rt.x86_64 

How reproducible:

Programme a realtime programa,to shield a specific CPU from handling IRQs



Steps to Reproduce:
1.#include<linux/irqflags.h>
2.the main() funtion calls some thread functions.  
2.call local_irq_disable（）; in a thread function.
3.compile it with icc;

Actual results:
3.10.0-229.rt56.161.el6rt.x86_64/include/asm-generic/irqflags.h:46: undefined reference to `arch_local_irq_restore

Expected results:
with no error; 

Additional info:
It seems I just find the function declared but definited in the  include/asm-generic/irqflags.h
Comment 1 Clark Williams 2015-11-20 15:05:55 UTC 
the include file linux/irqflags.h is for use by kernel code only.

Application programs cannot disable interrupts.
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