Bug 1496585 - rgw_file: fix a special overlapped i/o case, increasing coverage
Summary: rgw_file: fix a special overlapped i/o case, increasing coverage
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: RGW
Version: 3.0
Hardware: All
OS: All
low
medium
Target Milestone: rc
: 3.0
Assignee: Matt Benjamin (redhat)
QA Contact: Tejas
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-09-27 21:08 UTC by Matt Benjamin (redhat)
Modified: 2017-12-05 23:46 UTC (History)
11 users (show)

Fixed In Version: RHEL: ceph-12.2.1-3.el7cp Ubuntu: ceph_12.2.1-10redhat1xenial
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2017-12-05 23:46:00 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Ceph Project Bug Tracker 21455 0 None None None 2017-09-27 21:08:54 UTC
Red Hat Product Errata RHBA-2017:3387 0 normal SHIPPED_LIVE Red Hat Ceph Storage 3.0 bug fix and enhancement update 2017-12-06 03:03:45 UTC

Description Matt Benjamin (redhat) 2017-09-27 21:08:55 UTC 
Description of problem:
An upstream RGW NFS user reported that he had observed a Linux NFS client, mount -osync, re-sending an already-sent write segment overlapping a page boundary, along with a fix which detects and corrects this special case.  Since this case looks to the NFS server identical to one where an application does the same thing (e.g., we've observed gnu tar to do this when writing into NFS space), the fix for this bug also widens application coverage slightly.

How reproducible:
Not consistently reproducible.
Comment 19 errata-xmlrpc 2017-12-05 23:46:00 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-2017:3387
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