Statistics on snapshot not working

Jack007 · May 19, 2026, 11:02am

Hi,

Since the last few snapshot versions the luci-statistics package doesn't seem to work. When selecting Statistics-graphs in Luci it only displays " loading data....".

When repeatedly clicking between pages and selecting statistics Luci seems to get unresponsive or crashes, the webgui isn't loaded anymore. The device seems to function correctly.

It occurs on both my MT6000 (on latest snapshot). A Zyxel NWA55AXE (also on latest snapshot) seems unaffected.

Both MT6000 on 25.12.4 work fine.

egc · May 19, 2026, 11:33am

It is a known problem

github.com/openwrt/luci

luci-base/luci-app-statistics: luci timeout and web server crash on Statistics page

opened 12:57PM - 13 May 26 UTC

lorand-horvath

### Is there an existing issue for this? - [x] I have searched among all existi…ng issues (including closed issues) ### screenshots or captures _No response_ ### Actual behaviour When I navigate to the Statistics page (installed via luci-app-statistics), an XHR request aborted error blocks the request and only the spinning loader shows. If I force by retrying too many times (on Setup page or Sensors), it crashes LuCI completely and I have to reboot the router. This issue appeared out of the blue about 3 days ago, I'm not sure what could cause this. ### Expected behaviour The Statistics page should load normally. ### Steps to reproduce Try to navigate to Statistics -> Setup or Statistics -> Graph -> Wireless or Sensors and notice spinner, locking up the web server after a while. ### Additional Information ```shell latest SNAPSHOT ``` ### What browsers do you see the problem on? Firefox ### Relevant log output ```shell ```

github.com/openwrt/uhttpd

cgi, file: fix crash due to field_len type mismatch with libubox (#24)

master ← AndyChiang888:calloc_a

opened 09:48AM - 18 May 26 UTC

AndyChiang888

+15 -1

In libubox commit https://github.com/openwrt/libubox/commit/9b488010c4a74202a85e…d24e01108fe069bd42e4, the type of `alloc_len` in `calloc_a` was changed to `size_t`. Since uhttpd still defined `field_len` as returning `int`, this type mismatch caused uhttpd to crash. So change `field_len` type to `size_t` and add NULL check. Fixes: https://github.com/openwrt/luci/issues/8629 Fixes: https://github.com/openwrt/libubox/pull/45

Jack007 · May 19, 2026, 11:44am

Ah OK, Thanks for letting me know.