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Bug 1542450 - If IRQ disappears and reappears later the IRQ is not balanced correctly due to overflow in irq_count [rhel-7.4.z]
Summary: If IRQ disappears and reappears later the IRQ is not balanced correctly due t...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: irqbalance
Version: 7.5
Hardware: Unspecified
OS: Unspecified
urgent
high
Target Milestone: rc
: ---
Assignee: Kairui Song
QA Contact: Jiri Dluhos
Petr Bokoc
URL:
Whiteboard:
: 1503800 (view as bug list)
Depends On: 1536373
Blocks: 1507952 1507957
TreeView+ depends on / blocked
 
Reported: 2018-02-06 11:30 UTC by Oneata Mircea Teodor
Modified: 2022-03-13 14:41 UTC (History)
12 users (show)

Fixed In Version: irqbalance-1.0.7-10.el7_4.1
Doc Type: Bug Fix
Doc Text:
Previously, if a device disappeared and then reappeared, the "irq_count" interrupt request (IRQ) counter in irqbalance overflowed, which resulted in a failure to balance IRQs. This update adds a check which triggers a rescan of the IRQ database if the counter decreases. As a result, IRQs remain correctly balanced for disappearing and reappearing devices.
Clone Of: 1536373
Environment:
Last Closed: 2018-11-06 15:58:26 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2018:3508 0 None None None 2018-11-06 15:58:33 UTC

Description Oneata Mircea Teodor 2018-02-06 11:30:25 UTC 
This bug has been copied from bug #1536373 and has been proposed to be backported to 7.4 z-stream (EUS).
Comment 7 Kairui Song 2018-09-06 02:44:31 UTC 
*** Bug 1503800 has been marked as a duplicate of this bug. ***
Comment 12 Jiri Dluhos 2018-09-25 12:39:17 UTC 
Confirming that after removing and re-adding the audio driver, "irqbalance --onetime --debug" rebuilds the database (produces a list of Adding IRQ nn to database" messages).

Thanks kasong!
Comment 14 errata-xmlrpc 2018-11-06 15:58:26 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:3508
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