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IDProjectCategoryView StatusLast Update
0015740CentOS-6kernelpublic2019-01-28 14:31
Reportercardoe 
PrioritylowSeveritymajorReproducibilityalways
Status newResolutionopen 
Product Version6.10 
Target VersionFixed in Version 
Summary0015740: kernel memory leak when performing xenstore operations
DescriptionThe CentOS 6.10 kernels (and RHEL 6.10) all have a memory leak that occurs with every operation on the /proc/xen/xenbus file. These operations can happen whenever CentOS 6.10 is running as a VM on any Xen system (the open source Xen Project and XenServer).
Steps To Reproduce1. install CentOS 6.10 as a VM on Xen
2. install Xen guest tools
3. run any xenstore operation (e.g. xenstore-ls data)
4. observe Sunreclaim (/proc/meminfo) climb until the kernel consumes all of memory and the OOM killer has killed all of users pace
Additional InformationOpened with RHEL as well at https://bugzilla.redhat.com/show_bug.cgi?id=1661666
I have also opened a support case with RHEL. They have created a patch which I have validated. It is not in a released kernel.
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Issue History

Date Modified Username Field Change
2019-01-24 14:47 cardoe New Issue
2019-01-24 14:47 cardoe Tag Attached: 2.6.32-754.2.1.el6.x86_64
2019-01-28 14:31 cardoe Tag Detached: 2.6.32-754.2.1.el6.x86_64