Comments (4)
We can close the issue once https://bugs.launchpad.net/ubuntu/+source/dwarves/+bug/2025370 gets resolved.
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Tried to reproduce this on a VM installed from a Ubunut 23.04 desktop ISO and from main
pwru, no luck:
lorenz@lorenz-Standard-PC-Q35-ICH9-2009:~/pwru$ uname -a
Linux lorenz-Standard-PC-Q35-ICH9-2009 6.2.0-24-generic #24-Ubuntu SMP PREEMPT_DYNAMIC Fri Jun 16 12:03:50 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
lorenz@lorenz-Standard-PC-Q35-ICH9-2009:~/pwru$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 23.04
Release: 23.04
Codename: lunar
lorenz@lorenz-Standard-PC-Q35-ICH9-2009:~/pwru$ sudo ./pwru --output-tuple --output-meta --filter-track-skb --output-skb --output-limit-lines 1
2023/06/28 16:21:53 Per cpu buffer size: 4096 bytes
2023/06/28 16:21:53 Attaching kprobes (via kprobe-multi)...
1518 / 1518 [------------------------------------------------------------------------------] 100.00% ? p/s
2023/06/28 16:21:53 Attached (ignored 0)
2023/06/28 16:21:53 Listening for events..
SKB CPU PROCESS FUNC
0x0 3 [sshd] tcp_established_options netns=0 mark=0x0 ifindex=0 proto=0 mtu=0 len=0 :0->:0()
Can you try stracing the process?
sudo strace -f -e trace=bpf,%file -e signal='!all' ./pwru --output-tuple --output-meta --filter-track-skb --output-skb --output-limit-lines 1
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@lmb Thanks. You can follow the steps from #189 (comment). Also, it contains the strace log.
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a VM installed from a Ubunut 23.04 desktop ISO
I built a VM from a Ubuntu 23.04 server ISO.
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Related Issues (20)
- Add XDP support HOT 14
- Failed to inject filter ebpf for kprobe_skb_2: register r8 used twice HOT 11
- CI: use pwru built by "make release" when testing
- Trace skb with fragments. HOT 1
- Multi-arch container image HOT 3
- Would be nice if probe unloading was faster HOT 6
- Failing to load on bpf-next: calipso_skbuff_delattr: opening perf event: cannot assign requested address HOT 7
- option --filter-trace-tc not support HOT 2
- `cb[]` (array of values) is not printed correctly when dumping the full skb HOT 4
- Support --filter-mark mark/[/mask]
- Processes name stop displaying after some time HOT 6
- build error of "LoadKProbeMultiPWRUWithoutOutputSKB" and so on
- Track kfunc with parameter whose type is struct sock * HOT 3
- --filter-trace-tc option doesn't work with Cilium HOT 4
- Support for Openshift 4.12/13? HOT 1
- CPU utilization HOT 1
- Getting errors HOT 1
- CI flake: Test pcap filter using stack
- CI flake: Test --filter-ifname
- Bug: program kprobe_skb_2: load program: permission denied
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