Messages in this thread |  | | | Date | Wed, 1 Jul 2009 18:34:52 -0700 | | From | Andrew Morton <> | | Subject | Re: [Bugme-new] [Bug 13690] New: nodes_clear cause hugepage unusable on non-NUMA machine |
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(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface).
On Thu, 2 Jul 2009 01:22:24 GMT bugzilla-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=13690 > > Summary: nodes_clear cause hugepage unusable on non-NUMA > machine > Product: Platform Specific/Hardware > Version: 2.5 > Kernel Version: 2.6.31-rc1 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: high > Priority: P1 > Component: i386 > AssignedTo: platform_i386@kernel-bugs.osdl.org > ReportedBy: alex.shi@intel.com > CC: yinghai@kernel.org > Regression: Yes > > > 73d60b7f747176dbdff826c4127d22e1fd3f9f74 commit introduced a nodes_clear > function for NUMA machine. But seems the commit omits non-NUMA machine. > If find_zone_movable_pfns_for_nodes/early_calculate_totalpages has no > chance to run. nodes_clear will block HUPEPAGE using in my specjbb2005 > testing on my Stoakely(i386/x86_64), waybridge(i386), IBM T61(i386) > > + /* > + * find_zone_movable_pfns_for_nodes/early_calculate_totalpages init > + * that node_mask, clear it at first > + */ > + nodes_clear(node_states[N_HIGH_MEMORY]);
Thanks.
fyi, with recently-occurring bugs and regressions of this nature, it is (I think) best to deal with them via email rather than bugzilla. Bugzilla is better-suited to longer-lived bugs where we have a need to track them, generate statistics, etc.
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