From: Yonghong Song Date: Wed, 10 Jun 2026 05:18:31 +0000 (-0700) Subject: selftests/bpf: Fix bpf_iter/task_vma test X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2e8ad1ff712d2a397e407c9fde60901f68d077dc;p=thirdparty%2Flinux.git selftests/bpf: Fix bpf_iter/task_vma test For selftest bpf_iter/task_vma, I got a failure like below on my qemu run: test_task_vma_common:FAIL:compare_output unexpected compare_output: actual '561593546000-561593585000r--p0000000000:241256579534/root/devshare/bpf-next/tools/testing/selftests/bpf/test_progs' != expected '561593546000-561593585000r--p0000000000:245551546830/root/devshare/bpf-next/tools/testing/selftests/bpf/test_progs' Further debugging found out file->f_inode->i_ino value may exceed 32bit, e.g., i_ino = 0x14c2eae35, but the format string is '%u'. This caused inode mismatch between bpf iter and proc result. Fix the issue by using format string '%llu' to accommodate 64bit i_ino. Fixes: e8168840e16c ("selftests/bpf: Add test for bpf_iter_task_vma") Signed-off-by: Yonghong Song Acked-by: Leon Hwang Link: https://lore.kernel.org/r/20260610051831.1346659-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov --- diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c index d64ba7ddaed5..d7fb561ed4fb 100644 --- a/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c +++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c @@ -52,7 +52,7 @@ SEC("iter/task_vma") int proc_maps(struct bpf_iter__task_vma *ctx) bpf_d_path(&file->f_path, d_path_buf, D_PATH_BUF_SIZE); BPF_SEQ_PRINTF(seq, "%08llx ", vma->vm_pgoff << 12); - BPF_SEQ_PRINTF(seq, "%02x:%02x %u", MAJOR(dev), MINOR(dev), + BPF_SEQ_PRINTF(seq, "%02x:%02x %llu", MAJOR(dev), MINOR(dev), file->f_inode->i_ino); BPF_SEQ_PRINTF(seq, "\t%s\n", d_path_buf); } else {