ref: a1f40084f9dfdd45698dc139c7c481da29fb0b3a
parent: d7bf9d4daa4d40e0ece3213824507cd7ddb031ec
author: Bjørn Erik Pedersen <[email protected]>
date: Thu Feb 15 05:03:24 EST 2018
Release 0.36.1
--- /dev/null
+++ b/temp/0.36.1-relnotes-ready.md
@@ -1,0 +1,33 @@
+This release fixes a multi-thread issue when reprocessing and reusing images across pages. When doing something like this with the same image from a partial used in, say, both the home page and the single page:
+
+```bash
+{{ with $img }}+{{ $big := .Fill "1024x512 top" }}+{{ $small := $big.Resize "512x" }}+{{ end }}+```
+
+There would be timing issues making Hugo in some cases trying to process the same image twice at the same time.
+
+You would experience errors of type:
+
+```bash
+png: invalid format: not enough pixel data
+```
+
+This commit fixes that by adding a mutex per image. This should also improve the performance, sligthly, as it avoids duplicate work.
+
+The current workaround before this fix is to always operate on the original:
+
+```bash
+{{ with $img }}+{{ $big := .Fill "1024x512 top" }}+{{ $small := .Fill "512x256 top" }}+{{ end }}+```
+This error was rare (no reports on GitHub or the discussion forum), but very hard to debug for the end user.
+
+* Fix multi-threaded image processing issue [d8fdffb5](https://github.com/gohugoio/hugo/commit/d8fdffb55268464d54558d6f9cd3874b612dc7c7) [@bep](https://github.com/bep) [#4404](https://github.com/gohugoio/hugo/issues/4404)
+* Improve error message in .Render [08521dac](https://github.com/gohugoio/hugo/commit/08521dac8323403933a8fd11acfd16930af5f17d) [@bep](https://github.com/bep)
+* Bump Travis/Snapcraft to Go 1.9.4 [fc23a80f](https://github.com/gohugoio/hugo/commit/fc23a80ffd3878b9ba9a160ce37e0e1d8703faf3) [@bep](https://github.com/bep)
+* Improve error processing error message [2851af02](https://github.com/gohugoio/hugo/commit/2851af0225cdf6c4e47058979cd22949ed6d1fc0) [@bep](https://github.com/bep)
--- a/temp/0.36.1-relnotes.md
+++ /dev/null
@@ -1,32 +1,0 @@
-
-
-This is a bug-fix release with a couple of important fixes.
-
-
-Hugo now has:
-
-* 23397+ [stars](https://github.com/gohugoio/hugo/stargazers)
-* 448+ [contributors](https://github.com/gohugoio/hugo/graphs/contributors)
-* 197+ [themes](http://themes.gohugo.io/)
-
-## Enhancements
-
-### Core
-
-* Improve error message in .Render [08521dac](https://github.com/gohugoio/hugo/commit/08521dac8323403933a8fd11acfd16930af5f17d) [@bep](https://github.com/bep)
-
-### Other
-
-* Bump Travis/Snapcraft to Go 1.9.4 [fc23a80f](https://github.com/gohugoio/hugo/commit/fc23a80ffd3878b9ba9a160ce37e0e1d8703faf3) [@bep](https://github.com/bep)
-* Improve error processing error message [2851af02](https://github.com/gohugoio/hugo/commit/2851af0225cdf6c4e47058979cd22949ed6d1fc0) [@bep](https://github.com/bep)
-
-## Fixes
-
-### Other
-
-* Fix multi-threaded image processing issue [d8fdffb5](https://github.com/gohugoio/hugo/commit/d8fdffb55268464d54558d6f9cd3874b612dc7c7) [@bep](https://github.com/bep) [#4404](https://github.com/gohugoio/hugo/issues/4404)
-
-
-
-
-