0.64: process hangs up on "Building sites" line

[artch]

What version of Hugo are you using (hugo version)?

$ hugo version
Hugo Static Site Generator v0.63.0/extended windows/amd64 BuildDate: unknown

My site is unable to build using Hugo 0.63 extended version. It worked fine on 0.62.2.

Building sites … ERROR 2020/01/23 16:16:37 [BUG] Got panic:
runtime error: invalid memory address or nil pointer dereference
goroutine 110 [running]:
runtime/debug.Stack(0x1e639c8, 0x2, 0xc006bb5600)
	/usr/local/go/src/runtime/debug/stack.go:24 +0xa4
github.com/gohugoio/hugo/hugolib.newPageContentOutput.func1.1(0xc006bb5f20, 0xc0015ef050)
	/root/project/hugo/hugolib/page__per_output.go:93 +0xce
panic(0x1bec8c0, 0x19a2f70)
	/usr/local/go/src/runtime/panic.go:679 +0x1c0
github.com/gohugoio/hugo/tpl/tplimpl.(*templateNamespace).parse(0x0, 0xc00afe5740, 0x35, 0xc012522000, 0xb899, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/root/project/hugo/tpl/tplimpl/template.go:797 +0x55
github.com/gohugoio/hugo/tpl/tplimpl.(*templateHandler).AddLateTemplate(0xc0008252c0, 0xc00afe5740, 0x35, 0xc012522000, 0xb899, 0x0, 0x0)
	/root/project/hugo/tpl/tplimpl/template.go:280 +0x195
github.com/gohugoio/hugo/hugolib.(*pageContentOutput).addSelfTemplate(0xc0047c5dc0, 0xc003b1be80, 0x31)
	/root/project/hugo/hugolib/page__per_output.go:433 +0x173
github.com/gohugoio/hugo/hugolib.newPageContentOutput.func1(0x22beb80, 0xc01100db00)
	/root/project/hugo/hugolib/page__per_output.go:200 +0x5c3
github.com/gohugoio/hugo/hugolib.newPageContentOutput.func2(0x22e7040, 0xc0111b5b00, 0x1e63941, 0x1, 0x4, 0xc0009abfa8)
	/root/project/hugo/hugolib/page__per_output.go:215 +0x2d
github.com/gohugoio/hugo/lazy.(*Init).withTimeout.func1(0xc003f36070, 0x22e7040, 0xc0111b5b00, 0xc0111b5b60)
	/root/project/hugo/lazy/init.go:177 +0x4e
created by github.com/gohugoio/hugo/lazy.(*Init).withTimeout
	/root/project/hugo/lazy/init.go:176 +0x115
Built in 3272 ms

[bep]

Please revise the title of this issue (I assume no one died) and provide more detail as to "what".

[bep]

Hey, the stacktrace tells me the "what" but not the "why", and I'm not able to reproduce this.

I suspect that I need to see your site's source to be able to track down this issue.

[bep]

I'm guessing you have multiple languages with some plain HTML templates inside /content. Maybe.

[bep]

I have committed a fix that I'm guessing will fix this, but I failed to create a failing test, so it is a little bit guesswork.

[artch]

Thank you for quick response! I'm sorry I couldn't follow it yesterday.

I don't have any ideas about "what" and "why" as I'm simply using Hugo, not developing it. It was intended to be a user bug report, and not the insightful debug session. I can help with debugging, but only within my limited knowledge.

"Fatal" in that sense means it's a fatal error, i.e. a crash, meaning the process exits and is unable to gracefully handle the error and continue. Nobody died for sure! 🙂

We have a pretty complex web site with two languages and thousands of pages. Many of them are indeed HTML. Its structure looks like this:

                   |  EN  |  RU
+------------------+------+------+
  Pages            | 1414 | 2796
  Paginator pages  |   56 |   74
  Non-page files   |  343 |  391
  Static files     |   21 |   21
  Processed images | 1437 | 1068
  Aliases          |  721 |  880
  Sitemaps         |    2 |    1
  Cleaned          |    0 |    0

Do you have a binary for me to test? I don't have any Go environment to build Hugo on my own.

[artch]

Sorry, I've just realized there is a new 0.63.1 release already. I checked it, and there is no fatal error leading to a process crash, but instead the process hangs up on Building sites ... line.

[bep]

With the information I have, I'm not able to reproduce or fix this. Maybe others will.

[artch]

Is there some way to enable any debug output to figure out what exactly is hanging up there?

[artch]

Still reproducible on 0.64 - hugo doesn't render my site and hangs up infinitely.

[moorereason]

@artch, can you provide access to the site source?

[artch]

This is complicated, it's intellectual property and I would have to request approval for that. Can I build hugo with some verbose output enabled to help you debug?

[artch]

This is fixed in v0.65.0.

[SMUsamaShah]

I am having the same problem in current version. There is no stack trace I can diagnose with either.

https://github.com/AbdulRafayZaidi/AbdulRafayZaidi.github.io/runs/2337541258?check_suite_focus=true

[jmooring]

@SMUsamaShah

You are experiencing a different problem.

Please use the forum (https://discourse.gohugo.io) for questions and troubleshooting. We prefer to use GitHub for verified bugs and vetted enhancements.

[github-actions]

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