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commit 6a7c2cf3f00e32082a1ada300cc585740e2b4bbd
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Author: Daniel J Blueman <daniel@numascale.com>
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Date: Wed, 08 Apr 2015 05:30:55 +0200
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SEGV due to uninitialised mask
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As node_cpu_mask_v2 is not defined as local to the compilation unit with
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'static', it is not guaranteed to be initialised to zero (ie in the .bss).
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This was leading to some SEGVs we've seen.
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Also mark another internal function local to the compilation unit.
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Signed-off-by: Daniel J Blueman <daniel@numascale.com>
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diff -Nur -x '*.orig' -x '*~' numactl-2.0.10/libnuma.c numactl-2.0.10.new/libnuma.c
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--- numactl-2.0.10/libnuma.c 2015-04-10 13:06:03.878415799 +0200
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+++ numactl-2.0.10.new/libnuma.c 2015-04-10 13:06:28.650585381 +0200
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struct bitmask *numa_nodes_ptr = NULL;
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static struct bitmask *numa_memnode_ptr = NULL;
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static unsigned long *node_cpu_mask_v1[NUMA_NUM_NODES];
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-struct bitmask **node_cpu_mask_v2;
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+static struct bitmask **node_cpu_mask_v2;
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WEAK void numa_error(char *where);
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__asm__(".symver numa_parse_bitmap_v2,numa_parse_bitmap@@libnuma_1.2");
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init_node_cpu_mask_v2(void)
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int nnodes = numa_max_possible_node_v2_int() + 1;
added
removed
debian/patches/from-git-6a7c2cf3-fix-uninitialised-mask.patch
