Stuck in upload status, web page not displayed.

[dkerr64]

User reported this in Discord with attached crashlog.
crash.pdf

[dkerr64]

Decoding a couple of the stacks...

Exception Cause: 9  [LoadStoreAlignmentCause: Load or store to an unaligned address]

0x40202741: q_push at ??:?
0x40228214: homekit_server_on_url(http_parser*, char const*, unsigned int) at ??:?
0x4021b2e8: homekit_characteristic_notify at ??:?
0x4021e12f: notify_homekit_obstruction() at ??:?
0x4021e5a8: obstruction_timer() at ??:?
0x4021e5e0: service_timer_loop() at ??:?
0x4023373c: user_init at ??:?
0x401007d1: cont_wrapper at ??:?

and...

Exception Cause: 28  [LoadProhibited: A load referenced a page mapped with an attribute that does not permit loads]

0x4020272f: q_push at ??:?
0x4022820c: homekit_server_on_url(http_parser*, char const*, unsigned int) at ??:?
0x4021b2e8: homekit_characteristic_notify at ??:?
0x4021e12f: notify_homekit_obstruction() at ??:?
0x4021e5a8: obstruction_timer() at ??:?
0x4021e5e0: service_timer_loop() at ??:?
0x4023373c: user_init at ??:?
0x401007d1: cont_wrapper at ??:?

[dkerr64]

Observations...

1. User ask how to reboot when web page not displayed. Can do this with...
   curl -X POST http://<ipaddr>/reboot
2. Stack decode highlights that we should not call service_timer_loop() if we are in updateUnderway state. Reason is that we have shutdown the HomeKit server, and that loop attempts to send a HomeKit notification which feels like a bad idea. Made that change here.
3. Not sure why the logs show Firmware update underway, reject request. unless that is from another browser requesting the web page while an update is underway.

[dkerr64]

Traced this problem to our use of IRAM heap. Unfortunately. Combination of this and this backs it out.

[dkerr64]

Fixed in 1.3.6

[jgstroud]

I tagged the build v1.4.0. It's currently pre-release. If we see good feedback, I'll rebuild as an official release