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libbpf-tools/memleak: mmap allocation failed, not added to pointer map #5138

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Nov 14, 2024
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libbpf-tools/memleak: mmap allocation failed, not added to pointer map #5138

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2 changes: 1 addition & 1 deletion libbpf-tools/memleak.bpf.c
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Original file line number Diff line number Diff line change
Expand Up @@ -119,7 +119,7 @@ static int gen_alloc_exit2(void *ctx, u64 address)
info.size = *size;
bpf_map_delete_elem(&sizes, &tid);

if (address != 0) {
if (address != 0 && address != MAP_FAILED) {
info.timestamp_ns = bpf_ktime_get_ns();

info.stack_id = bpf_get_stackid(ctx, &stack_traces, stack_flags);
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1 change: 1 addition & 0 deletions libbpf-tools/memleak.h
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Expand Up @@ -4,6 +4,7 @@

#define ALLOCS_MAX_ENTRIES 1000000
#define COMBINED_ALLOCS_MAX_ENTRIES 10240
#define MAP_FAILED -1

struct alloc_info {
__u64 size;
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