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Instead of KProbes based profiler using DebugMon Exception to trap probed address, we might want to use offline profiler, which is able to build function table and profile table, distribute profile hi…
jserv updated
10 years ago
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### Zig Version
0.9.0
### Steps to Reproduce
For this to work you must have a Linux kernel with `CONFIG_BPF_KPROBE_OVERRIDE=y`. Apparently this is the default on Arch Linux, but for NixOS I had to …
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### Description
**What happened**:
While testing out the new https://goteleport.com/docs/server-access/guides/bpf-session-recording/, I was unable to get Teleport to work using our standard Syst…
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I'm testing bio tools on riscv cpu with kenel 6.1, and get failures
```
~ # uname -a
Linux formosa 6.1.31+ #8 SMP Thu Jun 15 09:10:38 CST 2023 riscv64 GNU/Linux
~ # biosnoop
libbpf: prog 'blk_acc…
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Starting from kernel 5.5, a new type of bpf programs is supported, called BPF_PROG_TYPE_TRACING, which uses fentry/fexit for attachment (https://lwn.net/Articles/804937/)
Such programs have zero over…
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**Motivation**
Currently, Falco traces every supported system call using kernel tracepoints, both in the kernel module and eBPF probe.
This works well, but in some specific cases it can lead to po…
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## Current situation
IG does not have a way to export internal metrics to Prometheus:
- How much memory it is using (and where: ebpf maps, ring buffers, etc.)
- How many gadgets it is currently r…
alban updated
1 month ago
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Note that this is a VM on a Mac M1 running Ubuntu 21.10 (GNU/Linux 5.13.0-23-generic aarch64). I compiled this bee binary on the same vm it's running on.
```
$ file /usr/local/bin/bee
/usr/local/…
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i try this command，not working
root@localhost:/usr/share# killsnoop
cannot attach kprobe, Function not implemented
Traceback (most recent call last):
File "/usr/share/bcc/tools/killsnoop", lin…
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For rx received traffic, I can use xdpdump to see if packets have reached the nic card. But how can I troubleshoot tx sent packets? Currently, I can only use tcpdump at the destination nic to check fo…