lnd crashes while syncing channels with panic: runtime error: invalid memory address or nil pointer dereference (segmentation fault) #1124
Description
Background
After a clean stop of lnd (via lnrpc stop), and then restarting lnd, the node runs for a few minutes, but then crashes with the message and dump:
2018-04-24 10:12:44.022 [INF] HSWC: ChannelLink(1e49eb55a996b60dde39686e36cdc7e3039bf8b49454093265367b6ba7a28bac:0) has exited
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x58 pc=0x8b07ff]
goroutine 40072 [running]:
github.com/lightningnetwork/lnd/lnwallet.(*LightningChannel).evaluateHTLCView(0xc420271200, 0xc421ef4030, 0xc42a2fd518, 0xc42a2fd510, 0x43, 0x1, 0xc421dd7f80)
/Users/roasbeef/gocode/src/github.com/lightningnetwork/lnd/lnwallet/channel.go:2392 +0x1cf
github.com/lightningnetwork/lnd/lnwallet.(*LightningChannel).computeView(0xc420271200, 0xc421ef4030, 0x1, 0xc421ef4030, 0xc42403b020, 0xc42a2fde80, 0xc42a2fd5d0, 0x429d69)
/Users/roasbeef/gocode/src/github.com/lightningnetwork/lnd/lnwallet/channel.go:3267 +0x179
github.com/lightningnetwork/lnd/lnwallet.(*LightningChannel).validateCommitmentSanity(0xc420271200, 0x14, 0x20, 0x1, 0x0, 0x40c32e, 0xc420271368)
/Users/roasbeef/gocode/src/github.com/lightningnetwork/lnd/lnwallet/channel.go:3357 +0x116
github.com/lightningnetwork/lnd/lnwallet.(*LightningChannel).SignNextCommitment(0xc420271200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
/Users/roasbeef/gocode/src/github.com/lightningnetwork/lnd/lnwallet/channel.go:2851 +0x224
github.com/lightningnetwork/lnd/htlcswitch.(*channelLink).updateCommitTx(0xc433670780, 0x3, 0x0)
/Users/roasbeef/gocode/src/github.com/lightningnetwork/lnd/htlcswitch/link.go:1440 +0x9d
github.com/lightningnetwork/lnd/htlcswitch.(*channelLink).htlcManager(0xc433670780)
/Users/roasbeef/gocode/src/github.com/lightningnetwork/lnd/htlcswitch/link.go:879 +0x6cf
created by github.com/lightningnetwork/lnd/htlcswitch.(*channelLink).Start
/Users/roasbeef/gocode/src/github.com/lightningnetwork/lnd/htlcswitch/link.go:391 +0x14e
Your environment
- lnd 0.4.1-beta
- 4.13.0-1011-azure 14-Ubuntu SMP Thu Feb 15 16:15:39 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
- bitcoind 0.16.0
Steps to reproduce
Did not happen more than once (yet)
I had 65 open channels, on restart, received the above message.
Full log of the session is attached (logging level only at info).