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| author | Raghavendra K T <[email protected]> | 2016-01-15 19:01:23 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2016-01-19 07:42:20 +0000 |
| commit | 9c03ee147193645be4c186d3688232fa438c57c7 (patch) | |
| tree | 19a89176131252f5b846687a21a80b6f1961cbf8 /net/unix/garbage.c | |
| parent | Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/ker... (diff) | |
| download | kernel-9c03ee147193645be4c186d3688232fa438c57c7.tar.gz kernel-9c03ee147193645be4c186d3688232fa438c57c7.zip | |
sched: Fix crash in sched_init_numa()
The following PowerPC commit:
c118baf80256 ("arch/powerpc/mm/numa.c: do not allocate bootmem memory for non existing nodes")
avoids allocating bootmem memory for non existent nodes.
But when DEBUG_PER_CPU_MAPS=y is enabled, my powerNV system failed to boot
because in sched_init_numa(), cpumask_or() operation was done on
unallocated nodes.
Fix that by making cpumask_or() operation only on existing nodes.
[ Tested with and w/o DEBUG_PER_CPU_MAPS=y on x86 and PowerPC. ]
Reported-by: Jan Stancek <[email protected]>
Tested-by: Jan Stancek <[email protected]>
Signed-off-by: Raghavendra K T <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Link: http://lkml.kernel.org/r/1452884483-11676-1-git-send-email-raghavendra.kt@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'net/unix/garbage.c')
0 files changed, 0 insertions, 0 deletions