Himadri Chhaya-Shailesh <[email protected]> 于 2026年3月12日周四 05:58写道：
> On Saturday, March 7th, 2026 at 9:33 AM, Yuao Ma [email protected] > wrote: > > Hi all, > > Please find attached the writeup for the Experiment-0(1-2 done, 3-4 > > WIP). Feel free to take a look whenever you get a chance. > > Thanks, > > Yuao > > Hi Yuao, > > Thanks for the update. Your experiment set-up looks good. > > Himadri > Thanks for the review! Unfortunately, I'm running into an issue with my `trace-cmd` environment setup. When I configure the agent on the guest and record on the host, I consistently get the following error: $ sudo trace-cmd record --verbose=all -e sched -A 3:823 --name vm1 -e sched sleep 1 libtraceevent: No such file or directory [kvm:kvm_inj_exception] bad op token } libtraceevent: No such file or directory Error: expected type 5 (DELIM) but read 0 (ERROR) Negotiated ptp time sync protocol with guest vm1 libtracecmd: No such file or directory reading client -110 (Unknown error -110) trace-cmd: No such file or directory cannot create output handle For reference, both my host and guest are running Fedora 43 (to minimize kernel differences). Note that my host server is itself a VM with nested virtualization enabled. I'm not sure whether my setup is misconfigured or if something else is going on - could you help take a look? For example, sharing your kernel version or trace-cmd version would be a great start. Thanks in advance, Yuao
