x/build: linux-amd64-wsl builder failing

[dmitshur]

The linux-amd64-wsl builder (owned by @mengzhuo) flipped abruptly from almost always passing to almost always failing on December 13, 2022:

On the main branch, it happened first on CL 457055 on Dec 13. But it also started happening on 1.19 and 1.18 release branches on a completely unrelated change (CL 456560 and 456561) on Dec 14. This suggests that the failure is more likely to be caused by something that happened on that week rather than a particular code change.

The most common error is:

fatal error: trace: ReadTrace got invalid frequency

Here are the 3 most recent build logs:

• https://build.golang.org/log/fbc66b6fd21efece15fba6a5793ab39a5534a4dc
• https://build.golang.org/log/f11b716d9f72e7322f25bda7b946041b90370df5
• https://build.golang.org/log/4b224c4fdd65698d08c0e5a00a42bb952310f86f

@mengzhuo Do you know if there were changes to the builder or its environment around Dec 13?

CC @golang/runtime, @golang/release.

[mengzhuo]

The WSL builders were based on ESXi 6.7 before Dec 13th, however my license are expired on that day. So I changed to PVE instead now.

Maybe I can change to ESXi 7.0 for free usage.

[mengzhuo]

Updates: I've transfered all wsl builder to new esxi based server, but there is no new commit so I think we need to wait for it to close this issue.
2023-1-4: Ian upload a new commit but still failed on wsl. It turns out the firewall of Windows blocked all broadcast pacakge, I've disabled firewall.

[heschi]

Still looks busted? https://build.golang.org/log/2d1e14595ca6ef409f849aa8eab0afced9c43623

[heschi]

Note also that quite a few x/ repo tests are failing; debug, sys, net look real to me.

[mengzhuo]

@heschi One major difference is builders running on Ubuntu 22.04 LTS from Microsoft store, instead of 20.04 LTS.
I'll take a look at strace log in WSL builder