shh_post RPC crashes geth: invalid memory address or nil pointer reference

[tinybike]

The specific RPC command sequence was shh_newFilter, shh_newIdentity, shh_post, which caused the following error in geth:

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x618adb]

goroutine 72 [running]:
github.com/ethereum/go-ethereum/xeth.(*whisperFilter).insert(0x0, 0xc82003ebb8, 0x1, 0x1)
    /home/jack/src/go-ethereum/build/_workspace/src/github.com/ethereum/go-ethereum/xeth/whisper_filter.go:72 +0x32b
github.com/ethereum/go-ethereum/xeth.(*XEth).NewWhisperFilter.func1(0xc8213b2180, 0xc820174400, 0x3d6, 0xc82154c1e0, 0x3, 0xc8219c02d0, 0x84, 0x560b8daa, 0x600, 0xc820d60280, ...)
    /home/jack/src/go-ethereum/build/_workspace/src/github.com/ethereum/go-ethereum/xeth/xeth.go:663 +0x161
github.com/ethereum/go-ethereum/xeth.(*Whisper).Watch.func1(0xc8213b2180)
    /home/jack/src/go-ethereum/build/_workspace/src/github.com/ethereum/go-ethereum/xeth/whisper.go:107 +0x5e
github.com/ethereum/go-ethereum/whisper.(*Whisper).Watch.func1(0xdc19c0, 0xc8213b2180)
    /home/jack/src/go-ethereum/build/_workspace/src/github.com/ethereum/go-ethereum/whisper/whisper.go:142 +0x3d
github.com/ethereum/go-ethereum/whisper.filterer.Trigger(0x0, 0x0, 0x0, 0x0, 0xc821812600, 0xc8217e9900, 0xdc19c0, 0xc8213b2180)
    /home/jack/src/go-ethereum/build/_workspace/src/github.com/ethereum/go-ethereum/whisper/filter.go:131 +0x30
github.com/ethereum/go-ethereum/whisper.(*filterer).Trigger(0xc821416a80, 0xdc19c0, 0xc8213b2180)
    <autogenerated>:2 +0xaa
github.com/ethereum/go-ethereum/event/filter.(*Filters).loop(0xc8206986e0)
    /home/jack/src/go-ethereum/build/_workspace/src/github.com/ethereum/go-ethereum/event/filter/filter.go:81 +0x42d
created by github.com/ethereum/go-ethereum/event/filter.(*Filters).Start
    /home/jack/src/go-ethereum/build/_workspace/src/github.com/ethereum/go-ethereum/event/filter/filter.go:49 +0x35

geth continued vomiting after this; the full post-mortem is at https://gist.github.com/tinybike/6846e87c033b065b2221.

[tinybike]

Addendum: the RPC command sequence (including shh_post, which returns true) is executed successfully, as far as I can tell.

[tinybike]

Addendum #2: this only seems to happen when I've created a filter with some topic X, then created another filter with the same topic X, then finally shh_post to topic X. Using shh_uninstallFilter before posting does not make a difference.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[tinybike]

This very likely is no longer relevant, especially with the whisper changes. Closing.