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0d83786f56
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 <houtao1@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20231215100708.2265609-4-houtao@huaweicloud.com |
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| .. | ||
| accounting | ||
| arch | ||
| bootconfig | ||
| bpf | ||
| build | ||
| certs | ||
| cgroup | ||
| counter | ||
| crypto/ccp | ||
| debugging | ||
| edid | ||
| firewire | ||
| firmware | ||
| gpio | ||
| hv | ||
| iio | ||
| include | ||
| kvm/kvm_stat | ||
| laptop | ||
| leds | ||
| lib | ||
| memory-model | ||
| mm | ||
| net/ynl | ||
| objtool | ||
| pci | ||
| pcmcia | ||
| perf | ||
| power | ||
| rcu | ||
| scripts | ||
| spi | ||
| testing | ||
| thermal | ||
| time | ||
| tracing | ||
| usb | ||
| verification | ||
| virtio | ||
| wmi | ||
| workqueue | ||
| Makefile | ||