Built against master branch 801dd40666d1e6009920ad3ff755c7bb993b2a62:

    $ ./bitcoind -wallet=/tmp/wallet.dat
    Error: Error loading wallet /tmp/wallet.dat. -wallet parameter must only specify a filename (not a path).
    Segmentation fault
    $ 

It's crashing here:

    Thread 1 "bitcoin-shutoff" received signal SIGSEGV, Segmentation fault.
    CConnman::Stop (this=0x0) at net.cpp:2405
    2405	    if (threadMessageHandler.joinable())
    (gdb) where
    #0  CConnman::Stop (this=0x0) at net.cpp:2405
    #1  0x00005555555a57fb in Shutdown () at init.cpp:197
    #2  0x00005555555997fb in AppInit (argc=<optimized out>, argv=<optimized out>) at bitcoind.cpp:183
    #3  0x0000555555599a39 in main (argc=0, argv=0x0) at bitcoind.cpp:195
    (gdb) 
#if defined(HAVE_CONFIG_H)
#include "config/bitcoin-config.h"
#endif
#include "init.h"
#include "addrman.h"
#include "amount.h"
#include "chain.h"
#include "chainparams.h"
#include "checkpoints.h"
#include "compat/sanity.h"
#include "consensus/validation.h"
#include "fs.h"
#include "httpserver.h"
#include "httprpc.h"
#include "key.h"
#include "validation.h"
#include "miner.h"
#include "netbase.h"
#include "net.h"
#include "net_processing.h"
#include "policy/feerate.h"
#include "policy/fees.h"
#include "policy/policy.h"
#include "rpc/server.h"
#include "rpc/register.h"
#include "rpc/safemode.h"
#include "rpc/blockchain.h"
#include "script/standard.h"
#include "script/sigcache.h"