root syncthing hangs app_process

[blaueente]

When running syncthing with root enabled, my phone fills up with "app_process" processes.
They fill up RAM, and slow down the phone, until either the phone restarts, or I kill the processes.

Version Information

App Version: 0.14.50-dirty
Syncthing Version: 0.10.14
Android Version: Android 6.0

root@p1:/proc # ps | grep app_process
root 7768 1 1920916 6140 futex_wait 7f8d0bd250 S app_process
root 7787 1 1920916 6060 futex_wait 7fb09c9250 S app_process
root 7843 1 1920916 6032 futex_wait 7fb2ae3250 S app_process
root 7893 1 1920916 6112 futex_wait 7f918a1250 S app_process
root 7894 1 1920916 6196 futex_wait 7fa55b3250 S app_process
root 7975 1 1920916 6060 futex_wait 7f84c45250 S app_process
root 14800 1 1920916 6248 futex_wait 7f940bf250 S app_process
root 14860 1 1920916 6340 futex_wait 7fa86d5250 S app_process
root 14973 1 1920916 6104 futex_wait 7f77def250 S app_process
root 15318 1 1920916 6236 futex_wait 7fb375d250 S app_process
root 15367 1 1920916 6336 futex_wait 7f818d9250 S app_process
root 15381 1 1920916 6220 futex_wait 7fad23f250 S app_process
root 15424 1 1920916 6284 futex_wait 7f7f9d7250 S app_process
root 15427 1 1920916 6400 futex_wait 7f7a011250 S app_process
root 15453 1 1920916 6172 futex_wait 7f98eb9250 S app_process
root 22901 1 1920916 12300 futex_wait 7f8b0c3250 S app_process
root 22953 1 1920916 12372 futex_wait 7fabf3b250 S app_process
root 23001 1 1920916 12232 futex_wait 7f86d55250 S app_process
root 23326 1 1920916 12232 futex_wait 7fa0b23250 S app_process
root 23359 1 1920916 12240 futex_wait 7fb4107250 S app_process
root 23388 1 1920916 12244 futex_wait 7f7faff250 S app_process
root 23416 1 1920916 12244 futex_wait 7f9d6ad250 S app_process
root 23419 1 1920916 12244 futex_wait 7f909b9250 S app_process
root 23455 1 1920916 12356 futex_wait 7fa03d5250 S app_process
root 26029 1 1920916 12572 futex_wait 7f8b315250 S app_process
root 26087 1 1920916 12568 futex_wait 7fafa47250 S app_process
root 26188 1 1920916 12472 futex_wait 7fafa3b250 S app_process
root 26379 1 1920916 12460 futex_wait 7f7c54d250 S app_process
root 26405 1 1920916 12472 futex_wait 7fb1229250 S app_process
root 26454 1 1920916 12596 futex_wait 7f8b10f250 S app_process
root 26473 1 1920916 12612 futex_wait 7fb711f250 S app_process
root 26513 1 1920916 12460 futex_wait 7f7bf45250 S app_process
root 26514 1 1920916 12480 futex_wait 7f94b05250 S app_process
root 26534 1 1920916 12476 futex_wait 7f901e7250 S app_process
root 29599 1 1920916 14940 futex_wait 7fa60bd250 S app_process
root 29624 1 1920916 14896 futex_wait 7f87347250 S app_process

All of them stem from syncthing, as can be seen from the respective /proc/*/cmdline:

root@p1:/proc/23388 # cat cmdline
app_process/system/bincom.android.commands.am.Ambroadcast--user0-aeu.chainfire.supersu.NativeAccess--essu_appnamecom.nutomic.syncthingandroid--eisu_fromuid10414--eisu_access1--eisu_touid0--essu_cmdINTERACTIVE--eisu_code469526--eisu_uid_mismatch0-neu.chainfire.supersu/.NativeAccessReceiver--receiver-replace-pending--include-stopped-packages

I am glad to provide any additional information you think could be helpful.