Not able to get metrics from Virtualized Environment

[enrico-nxw]

Bug description

Hello,
I have a NUC (Intel(R) Core(TM) i7-6770HQ CPU @ 2.60GHz) and I created a VM with ubuntu24.04 using KVM (libvirt). I'm not able to get measurements from the VM using "scaphandre --vm".
I get the following error:

ubuntu@vm:~/repo-scaphandre/target/debug$ sudo RUST_BACKTRACE=full ./scaphandre --vm stdout -t 5 scaphandre::sensors::powercap_rapl: Couldn't find domain folders from powercap. Fallback on socket folders. scaphandre::sensors::powercap_rapl: Scaphandre will not be able to provide per-domain data. scaphandre::sensors::powercap_rapl: Could'nt find any RAPL PKG domain (nor psys). scaphandre::sensors: Sysinfo sees 2 thread 'main' panicked at src/sensors/mod.rs:303:53: Trick: if you are running on a vm, do not forget to use --vm parameter invoking scaphandre at the command line stack backtrace: 0: 0x6437f6bc76fa - std::backtrace_rs::backtrace::libunwind::trace::h99efb0985cae5d78 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 1: 0x6437f6bc76fa - std::backtrace_rs::backtrace::trace_unsynchronized::he2c1aa63b3f7fad8 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x6437f6bc76fa - std::sys::backtrace::_print_fmt::h8a221d40f5e0f88b at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:66:9 3: 0x6437f6bc76fa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h304520fd6a30aa07 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:39:26 4: 0x6437f6beef5b - core::fmt::rt::Argument::fmt::h5da9c218ec984eaf at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/fmt/rt.rs:177:76 5: 0x6437f6beef5b - core::fmt::write::hf5713710ce10ff22 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/fmt/mod.rs:1178:21 6: 0x6437f6bc4143 - std::io::Write::write_fmt::hda708db57927dacf at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/io/mod.rs:1823:15 7: 0x6437f6bc88a2 - std::sys::backtrace::BacktraceLock::print::hbcdbec4d97c91528 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:42:9 8: 0x6437f6bc88a2 - std::panicking::default_hook::{{closure}}::he1ad87607d0c11c5 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:266:22 9: 0x6437f6bc850e - std::panicking::default_hook::h81c8cd2e7c59ee33 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:293:9 10: 0x6437f6bc912f - std::panicking::rust_panic_with_hook::had2118629c312a4a at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:797:13 11: 0x6437f6bc8e17 - std::panicking::begin_panic_handler::{{closure}}::h7fa5985d111bafa2 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:671:13 12: 0x6437f6bc7bd9 - std::sys::backtrace::__rust_end_short_backtrace::h704d151dbefa09c5 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:170:18 13: 0x6437f6bc8aa4 - rust_begin_unwind at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:662:5 14: 0x6437f5cd7fe3 - core::panicking::panic_fmt::h3eea515d05f7a35e at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panicking.rs:74:14 15: 0x6437f5cd7fab - core::panicking::panic_display::h43c6507275b9b865 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panicking.rs:264:5 16: 0x6437f5cd7fab - core::option::expect_failed::h6d726c0eb3b486db at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/option.rs:2025:5 17: 0x6437f5cff522 - core::option::Option<T>::expect::h3dd85dfbe342ccaa at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/option.rs:928:21 18: 0x6437f5dde379 - scaphandre::sensors::Topology::add_cpu_cores::h5fb4a4a3c2c35f49 at /home/ubuntu/scaphandre/src/sensors/mod.rs:303:28 19: 0x6437f5d039a8 - <scaphandre::sensors::powercap_rapl::PowercapRAPLSensor as scaphandre::sensors::Sensor>::generate_topology::h8c69cc8fc64aea6f at /home/ubuntu/scaphandre/src/sensors/powercap_rapl.rs:286:9 20: 0x6437f5d06af0 - <scaphandre::sensors::powercap_rapl::PowercapRAPLSensor as scaphandre::sensors::Sensor>::get_topology::hbacb983c7e2462b8 at /home/ubuntu/scaphandre/src/sensors/powercap_rapl.rs:292:24 21: 0x6437f5daf9d8 - scaphandre::exporters::stdout::StdoutExporter::new::he68d05cbca21634e at /home/ubuntu/scaphandre/src/exporters/stdout.rs:88:20 22: 0x6437f5cd9e59 - scaphandre::build_exporter::hfc10533acadc8382 at /home/ubuntu/scaphandre/src/main.rs:247:22 23: 0x6437f5cd9c6a - scaphandre::parse_cli_and_run_exporter::h53527dcc74977a7f at /home/ubuntu/scaphandre/src/main.rs:236:24 24: 0x6437f5cd9b16 - scaphandre::main::hb6a75900ada5b16a at /home/ubuntu/scaphandre/src/main.rs:228:5 25: 0x6437f5cddebb - core::ops::function::FnOnce::call_once::h19a1a6ab842c33bd at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/ops/function.rs:250:5 26: 0x6437f5ce23ce - std::sys::backtrace::__rust_begin_short_backtrace::hc0bd8f865041b007 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:154:18 27: 0x6437f5ce2351 - std::rt::lang_start::{{closure}}::h7c82916212d2a4db at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/rt.rs:164:18 28: 0x6437f6bbe420 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h08ecba131ab90ec4 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/ops/function.rs:284:13 29: 0x6437f6bbe420 - std::panicking::try::do_call::hf33a59fd8ce953f4 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:554:40 30: 0x6437f6bbe420 - std::panicking::try::h5005ce80ce949fd8 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:518:19 31: 0x6437f6bbe420 - std::panic::catch_unwind::hfbae19e2e2c5b7ed at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panic.rs:345:14 32: 0x6437f6bbe420 - std::rt::lang_start_internal::{{closure}}::ha0331c3690741813 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/rt.rs:143:48 33: 0x6437f6bbe420 - std::panicking::try::do_call::hcdcbdb616b4d0295 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:554:40 34: 0x6437f6bbe420 - std::panicking::try::h3f2f1725a07d2256 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:518:19 35: 0x6437f6bbe420 - std::panic::catch_unwind::h51869e04b56b2dc3 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panic.rs:345:14 36: 0x6437f6bbe420 - std::rt::lang_start_internal::h4d90db0530245041 at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/rt.rs:143:20 37: 0x6437f5ce232a - std::rt::lang_start::hc1838b47337668ed at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/rt.rs:163:17 38: 0x6437f5cdde4e - main 39: 0x7e627842a1ca - <unknown> 40: 0x7e627842a28b - __libc_start_main 41: 0x6437f5cd8b55 - _start 42: 0x0 - <unknown>

To Reproduce

1. access the VM
2. clone the repository (https://github.com/hubblo-org/scaphandre)
3. ubuntu@vm:~$ sudo ./scaphandre/target/debug/scaphandre --vm stdout // the same for prometheus

Expected behavior

The metrics printed in stdout or exposed in http in case of prometheus

Environment

• Ubuntu 24.04
• Linux vm 6.8.0-48-generic # 48-Ubuntu SMP PREEMPT_DYNAMIC Fri Sep 27 14:04:52 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

Additional context

• I executed also: $sudo apt install linux-modules-extra-$(uname -r) && sudo modprobe intel_rapl_common
• The same steps works fine in the host machine.
• In the host machine I have a scaphandre instance running as: ubuntu@ubuntu:~/scaphandre/target/debug$ sudo ./scaphandre prometheus --qemu
• It also not works on WLS2