[Bug 913695] New: possible memory leak in kernel 3.16.7
http://bugzilla.suse.com/show_bug.cgi?id=913695 Bug ID: 913695 Summary: possible memory leak in kernel 3.16.7 Classification: openSUSE Product: openSUSE Distribution Version: 13.2 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: mbenes@suse.com QA Contact: qa-bugs@suse.de CC: mhocko@suse.cz Found By: --- Blocker: --- openSUSE 13.2 with the latest kernel 3.16.7-7 got to the state where there was not enough free memory available. Swap was full and no process held the memory at first glance. The system ran for several weeks. There was no page allocation failure or out of memory message in the log. /proc/meminfo, slabinfo and zoneinfo are attached with the list of processes. According to Michal Hocko it could be fixed by 5ddacbe92b806cd5b4f8f154e8e46ac267fff55c in upstream kernel. It is not present in 3.16.7 version. Unfortunately I had to turn off the computer due to power down in the building and cannot reproduce it again. -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.suse.com/show_bug.cgi?id=913695 --- Comment #1 from Miroslav Beneš <mbenes@suse.com> --- Created attachment 620006 --> http://bugzilla.suse.com/attachment.cgi?id=620006&action=edit meminfo -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.suse.com/show_bug.cgi?id=913695 --- Comment #2 from Miroslav Beneš <mbenes@suse.com> --- Created attachment 620007 --> http://bugzilla.suse.com/attachment.cgi?id=620007&action=edit slabinfo -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.suse.com/show_bug.cgi?id=913695 --- Comment #3 from Miroslav Beneš <mbenes@suse.com> --- Created attachment 620008 --> http://bugzilla.suse.com/attachment.cgi?id=620008&action=edit zoneinfo -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.suse.com/show_bug.cgi?id=913695 --- Comment #4 from Miroslav Beneš <mbenes@suse.com> --- Created attachment 620009 --> http://bugzilla.suse.com/attachment.cgi?id=620009&action=edit processes -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.suse.com/show_bug.cgi?id=913695 --- Comment #8 from Miroslav Beneš <mbenes@suse.com> --- So I am in the same situation after two weeks. This is the relevant part of /proc/vmstat thp_fault_alloc 9500 thp_fault_fallback 107474 thp_collapse_alloc 3284 thp_collapse_alloc_failed 17798 thp_split 2167 thp_zero_page_alloc 21 thp_zero_page_alloc_failed 1751 I am going to install kernel with the fix and see what happens. -- You are receiving this mail because: You are on the CC list for the bug.
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