Nginx crashing with image filter and cache enabled

[Maxim Dounin]

Hello!

On Mon, Jun 11, 2018 at 08:53:49AM -0400, ayman wrote:

> When enabling the cache on image filter; nginx workers crash and keep
> getting 500.
> 
> I'm using Nginx 1.14.0
> 
> error log:
> 2018/06/11 12:30:49 [alert] 46105#0: worker process 46705 exited on signal
> 11 (core dumped)
> 
> proxy_cache_path /opt/nginx/img-cache/resized levels=1:2
> keys_zone=resizedimages:10m max_size=3G;
> 
> location ~ ^/resize/(\d+)x(\d+)/(.*) {
>                 proxy_pass                  https://proxypass/$3
>                 proxy_cache resizedimages;
>                 proxy_cache_key "$host$document_uri";
>                 proxy_temp_path off;
>                 proxy_cache_valid 200 1d;
>                 proxy_cache_valid any 1m;
>                 proxy_cache_use_stale error timeout invalid_header
> updating;
> 
>                 image_filter                resize $1 $2;
>                 image_filter_jpeg_quality   90;
>                 image_filter_buffer         20M;
>                 image_filter_interlace      on;
> 
> }
> 
> If i disable the cache it's working perfectly!
> 
> Do you recommend to change anything in the config? What could be the issue?

You may want to provide "nginx -V" output, backtrace as obtained 
from the core dump, and details on the GD library used.

-- 
Maxim Dounin
http://mdounin.ru/