github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-05 04:56:13 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

selftests/bpf: Fix verifier_arena_globals1 failure with 64K page

Browse Source 
With 64K page on arm64, verifier_arena_globals1 failed like below:
  ...
  libbpf: map 'arena': failed to create: -E2BIG
  ...
  #509/1   verifier_arena_globals1/check_reserve1:FAIL
  ...

For 64K page, if the number of arena pages is (1UL << 20), the total
memory will exceed 4G and this will cause map creation failure.
Adjusting ARENA_PAGES based on the actual page size fixed the problem.

Cc: Emil Tsalapatis <emil@etsalapatis.com>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Link: https://lore.kernel.org/r/20260113061033.3798549-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Yonghong Song 2026-01-12 22:10:33 -08:00 committed by Alexei Starovoitov
parent d2f7cd20a7
commit 951d79017e
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/testing/selftests/bpf/progs/verifier_arena_globals1.c
View File

@ -9,7 +9,7 @@
#include "bpf_arena_common.h"
#include "bpf_misc.h"
#define ARENA_PAGES (1UL<< (32 - 12))
#define ARENA_PAGES (1UL<< (32 - __builtin_ffs(__PAGE_SIZE) + 1))
#define GLOBAL_PAGES (16)
struct {