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| author | Hou Tao <[email protected]> | 2023-12-15 10:07:06 +0000 |
|---|---|---|
| committer | Daniel Borkmann <[email protected]> | 2023-12-15 21:54:55 +0000 |
| commit | 0d83786f5661154d015b498a3d23d4c37e30f6ef (patch) | |
| tree | d118f6335c36c98b0517901f93ee471125ee8bdc /tools/net/ynl/generated/devlink-user.c | |
| parent | bpf: Limit the number of kprobes when attaching program to multiple kprobes (diff) | |
| download | kernel-0d83786f5661154d015b498a3d23d4c37e30f6ef.tar.gz kernel-0d83786f5661154d015b498a3d23d4c37e30f6ef.zip | |
selftests/bpf: Add test for abnormal cnt during multi-uprobe attachment
If an abnormally huge cnt is used for multi-uprobes attachment, the
following warning will be reported:
------------[ cut here ]------------
WARNING: CPU: 7 PID: 406 at mm/util.c:632 kvmalloc_node+0xd9/0xe0
Modules linked in: bpf_testmod(O)
CPU: 7 PID: 406 Comm: test_progs Tainted: G ...... 6.7.0-rc3+ #32
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......
RIP: 0010:kvmalloc_node+0xd9/0xe0
......
Call Trace:
<TASK>
? __warn+0x89/0x150
? kvmalloc_node+0xd9/0xe0
bpf_uprobe_multi_link_attach+0x14a/0x480
__sys_bpf+0x14a9/0x2bc0
do_syscall_64+0x36/0xb0
entry_SYSCALL_64_after_hwframe+0x6e/0x76
......
</TASK>
---[ end trace 0000000000000000 ]---
So add a test to ensure the warning is fixed.
Signed-off-by: Hou Tao <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Diffstat (limited to 'tools/net/ynl/generated/devlink-user.c')
0 files changed, 0 insertions, 0 deletions