JIT rebalance plugin crash

2020-02-02T00:29:43.059Z **BROKEN** lightningd: Plugin for htlc_accepted returned non-result response {"jsonrpc": "2.0", "id": 34, "error": "Error while processing htlc_accepted: ValueError('Millisatoshi must be >= 0')"}
2020-02-02T00:29:43.461Z **BROKEN** lightningd: FATAL SIGNAL 6 (version v0.8.0-136-gf3600d2)
2020-02-02T00:29:43.461Z **BROKEN** lightningd: backtrace: common/daemon.c:46 (send_backtrace) 0x56132d104049
2020-02-02T00:29:43.461Z **BROKEN** lightningd: backtrace: common/daemon.c:54 (crashdump) 0x56132d104099
2020-02-02T00:29:43.461Z **BROKEN** lightningd: backtrace: (null):0 ((null)) 0x7f515e4030ff
2020-02-02T00:29:43.461Z **BROKEN** lightningd: backtrace: (null):0 ((null)) 0x7f515e403081
2020-02-02T00:29:43.461Z **BROKEN** lightningd: backtrace: (null):0 ((null)) 0x7f515e3ee534
2020-02-02T00:29:43.461Z **BROKEN** lightningd: backtrace: lightningd/log.c:819 (fatal) 0x56132d0d6b83
2020-02-02T00:29:43.461Z **BROKEN** lightningd: backtrace: lightningd/plugin_hook.c:83 (plugin_hook_callback) 0x56132d0f8b4f
2020-02-02T00:29:43.461Z **BROKEN** lightningd: backtrace: lightningd/plugin.c:241 (plugin_response_handle) 0x56132d0f4d33
2020-02-02T00:29:43.461Z **BROKEN** lightningd: backtrace: lightningd/plugin.c:339 (plugin_read_json_one) 0x56132d0f4edb
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: lightningd/plugin.c:371 (plugin_read_json) 0x56132d0f502e
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: ccan/ccan/io/io.c:59 (next_plan) 0x56132d157eee
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: ccan/ccan/io/io.c:407 (do_plan) 0x56132d158a6f
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: ccan/ccan/io/io.c:417 (io_ready) 0x56132d158aad
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: ccan/ccan/io/poll.c:445 (io_loop) 0x56132d15ac79
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: lightningd/io_loop_with_timers.c:24 (io_loop_with_timers) 0x56132d0cd38c
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: lightningd/lightningd.c:871 (main) 0x56132d0d4176
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: (null):0 ((null)) 0x7f515e3efbba
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: (null):0 ((null)) 0x56132d0b84a9
2020-02-02T00:29:43.462Z **BROKEN** lightningd: backtrace: (null):0 ((null)) 0xffffffffffffffff

[darosior]

I’ll grep for it (didn’t think about it the first time…) EDIT: actually that the first thing I did but no backtrace, the plugin crashes lightningd but not itself.

I’ll try to reproduce ASAP if I’m able to…

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ Le mardi, février 11, 2020 12:49 PM, Christian Decker [e-mail] a écrit :

There should be a python stacktrace somewhere in the logs before the crash. Can you share that? Or even better maybe there is a good way to reproduce this issue in a test? That’d be perfect to get it fixed 😃

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[cdecker]

That sounds like a key error, in which we try to access a dict field that is not set. Really strange that there is no traceback