LND crashes in atomic routine on armv7l after updating to master with arm fixes.

[vegardengen]

Background

Updated to master, starting node. Am able to start, but crashes after less than a minute.

Your environment

• lnd version 0.4.2-beta commit=80bdacbc7257211d722d59abd5cb808af8f8a119

• Linux thundroid 4.14.24-113 Fix name typo in README #1 SMP PREEMPT Mon Mar 5 12:21:35 UTC 2018 armv7l armv7l armv7l GNU/Linux

• bitcoind 0.16.0

• any other relevant environment details

Steps to reproduce

Patch to master on platform. Start.

Expected behaviour

Does not crash.

Actual behaviour

Crashes.

Here is the relevant crash:
2018-06-05 07:02:45.556 [INF] HSWC: ChannelLink(d50620a59920774c82aa95aff6fa35446048e88b60a89ce475babe7fb75f97a1:1) has exited
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x4 pc=0x11e44]

goroutine 1460 [running]:
sync/atomic.loadUint64(0x123046c4, 0x0, 0x11486120)
/usr/local/go/src/sync/atomic/64bit_arm.go:10 +0x3c
github.com/lightningnetwork/lnd/htlcswitch.(*packetQueue).TotalHtlcAmount(0x123046c0, 0x8954878, 0x0)
/home/admin/go/src/github.com/lightningnetwork/lnd/htlcswitch/queue.go:199 +0x24
github.com/lightningnetwork/lnd/htlcswitch.(*channelLink).Bandwidth(0x11b8a000, 0xa53974, 0x11b8a000)
/home/admin/go/src/github.com/lightningnetwork/lnd/htlcswitch/link.go:1646 +0x40
github.com/lightningnetwork/lnd/htlcswitch.(*channelLink).htlcManager(0x11b8a000)
/home/admin/go/src/github.com/lightningnetwork/lnd/htlcswitch/link.go:773 +0x54
created by github.com/lightningnetwork/lnd/htlcswitch.(*channelLink).Start
/home/admin/go/src/github.com/lightningnetwork/lnd/htlcswitch/link.go:425 +0x2c4