Expected behavior
bitcoin-qt starts GUI as usual.
Actual behavior
from source:
0user@host:~$ .//bitcoin-qt
1Killed
0echo $?
1137
from snap
0user@host:~$ /snap/bitcoin-core/current/bin/bitcoin-qt
1Killed
To reproduce
Install Debian buster netinst.
Install kicksecure-xfce
System information
Bitcoin Core version v0.19.0.1 (64-bit)
Librem 15 ME cleaned Intel I7
XFCE
0user@host:~/Bitcoin/bitcoin-0.19.0.1/bin$ cat ~/.bitcoin/debug.log
02019-12-12T12:17:14Z Bitcoin Core version v0.19.0.1 (release build)
12019-12-12T12:17:14Z Assuming ancestors of block 00000000000000000005f8920febd3925f8272a6a71237563d78c2edfdd09ddf have valid signatures.
22019-12-12T12:17:14Z Setting nMinimumChainWork=000000000000000000000000000000000000000008ea3cf107ae0dec57f03fe8
32019-12-12T12:17:14Z Using the 'sse4(1way),sse41(4way),avx2(8way)' SHA256 implementation
42019-12-12T12:17:14Z Using RdSeed as additional entropy source
52019-12-12T12:17:14Z Using RdRand as an additional entropy source
62019-12-12T12:17:14Z Default data directory /home/user/.bitcoin
72019-12-12T12:17:14Z Using data directory /home/user/.bitcoin
82019-12-12T12:17:14Z Config file: /home/user/.bitcoin/bitcoin.conf (not found, skipping)
92019-12-12T12:17:14Z Using at most 125 automatic connections (1024 file descriptors available)
102019-12-12T12:17:14Z Using 16 MiB out of 32/2 requested for signature cache, able to store 524288 elements
112019-12-12T12:17:14Z Using 16 MiB out of 32/2 requested for script execution cache, able to store 524288 elements
122019-12-12T12:17:14Z Using 2 threads for script verification
132019-12-12T12:17:14Z Using wallet directory /home/user/.bitcoin/wallets
142019-12-12T12:17:14Z init message: Verifying wallet(s)...
152019-12-12T12:17:14Z Using BerkeleyDB version Berkeley DB 4.8.30: (April 9, 2010)
162019-12-12T12:17:14Z Using wallet /home/user/.bitcoin/wallets
172019-12-12T12:17:14Z BerkeleyEnvironment::Open: LogDir=/home/user/.bitcoin/wallets/database ErrorFile=/home/user/.bitcoin/wallets/db.log
182019-12-12T12:17:14Z scheduler thread start
192019-12-12T12:17:14Z init message: Loading banlist...
202019-12-12T12:17:14Z Cache configuration:
212019-12-12T12:17:14Z * Using 2.0 MiB for block index database
222019-12-12T12:17:14Z * Using 8.0 MiB for chain state database
232019-12-12T12:17:14Z * Using 440.0 MiB for in-memory UTXO set (plus up to 286.1 MiB of unused mempool space)
242019-12-12T12:17:14Z init message: Loading block index...
252019-12-12T12:17:14Z Opening LevelDB in /home/user/.bitcoin/blocks/index
262019-12-12T12:17:14Z Opened LevelDB successfully
272019-12-12T12:17:14Z Using obfuscation key for /home/user/.bitcoin/blocks/index: 0000000000000000
282019-12-12T12:17:14Z LoadBlockIndexDB: last block file = 0
292019-12-12T12:17:14Z LoadBlockIndexDB: last block file info: CBlockFileInfo(blocks=1, size=293, heights=0...0, time=2009-01-03...2009-01-03)
302019-12-12T12:17:14Z Checking all blk files are present...
312019-12-12T12:17:14Z Opening LevelDB in /home/user/.bitcoin/chainstate
322019-12-12T12:17:14Z Opened LevelDB successfully
332019-12-12T12:17:14Z Using obfuscation key for /home/user/.bitcoin/chainstate: 586dde031140e211
342019-12-12T12:17:14Z Loaded best chain: hashBestChain=000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f height=0 date=2009-01-03T18:15:05Z progress=0.000000
352019-12-12T12:17:14Z init message: Rewinding blocks...
362019-12-12T12:17:14Z init message: Verifying blocks...
372019-12-12T12:17:14Z block index 38ms
382019-12-12T12:17:14Z init message: Loading wallet...
392019-12-12T12:17:14Z BerkeleyEnvironment::Open: LogDir=/home/user/.bitcoin/wallets/database ErrorFile=/home/user/.bitcoin/wallets/db.log
402019-12-12T12:17:14Z [default wallet] Wallet File Version = 169900
412019-12-12T12:17:14Z [default wallet] Keys: 2001 plaintext, 0 encrypted, 2001 w/ metadata, 2001 total. Unknown wallet records: 0
422019-12-12T12:17:14Z [default wallet] Wallet completed loading in 111ms
432019-12-12T12:17:14Z [default wallet] setKeyPool.size() = 2000
442019-12-12T12:17:14Z [default wallet] mapWallet.size() = 0
452019-12-12T12:17:14Z [default wallet] mapAddressBook.size() = 0
462019-12-12T12:17:14Z block tree size = 1
472019-12-12T12:17:14Z nBestHeight = 0
482019-12-12T12:17:14Z Bound to [::]:8333
492019-12-12T12:17:14Z Bound to 0.0.0.0:8333
502019-12-12T12:17:14Z init message: Loading P2P addresses...
512019-12-12T12:17:14Z Imported mempool transactions from disk: 0 succeeded, 0 failed, 0 expired, 0 already there
522019-12-12T12:17:14Z torcontrol thread start
532019-12-12T12:17:14Z Loaded 6638 addresses from peers.dat 36ms
542019-12-12T12:17:14Z init message: Starting network threads...
552019-12-12T12:17:14Z init message: Done loading
562019-12-12T12:17:14Z GUI: Platform customization: "other"
572019-12-12T12:17:14Z opencon thread start
582019-12-12T12:17:14Z net thread start
592019-12-12T12:17:14Z dnsseed thread start
602019-12-12T12:17:14Z msghand thread start
612019-12-12T12:17:14Z addcon thread start
62user@host:~/Bitcoin/bitcoin-0.19.0.1/bin$
How to debug this issue?