Trisquel 7 asks twice for user password

Just now I tried a couple of restarts, looking for messages during shutdown, and the double password request vanished. I had not asked for any software update/upgrades, however, so the behavior hasn't repeated. I was puzzled by the fact that the previous kernel, Linux-Libre 3.13.0-66-lowlatency, showed the same behavior this morning, as it had not done so previously.

Not crazy. Linux-Libre 3.13.0-67-lowlatency just did it again. Random negative reinforcement ?

Maddening. Does it randomly whichever kernel I choose from the Grub menu. Sometimes three starts in a row.

I just tried it on Linux-Libre 3.13.0-59-lowlatency. Same random behavior.

Must be some app that I installed yesterday; all from the Trisquel repository by apt-get install.

Something that needs to be run with authentication that's in the startup menu ? I'll look in BUM.

Research results from BUM:

Unchecking wicd, tor, clamav-freshclam, postfix, and hddtemp in BUM had no effect, but unchecking clamav-daemon did. Now I've gone through a half-dozen restarts without getting a second password request.

Still have no idea what's in store if I accede to that second request.

Nothing has changed; with no programs checked in BUM, the duplicate password requests proceed on a random basis. Sheesh.

Don't you simply mistype the password? Also, what is BUM? You can look at APT's logs in /var/log/apt.

The password prompt window usually has a clickable link that can display which component is asking the password.

One question: did you change the display manager from lightdm to gdm or others?
Is the previous Display manager on the system?

If that is so I might have the solution to your problem. Tell us all DMs you have installed and do not uninstall anything.

Mis-typed password: No - when I flub my password, the system tells me so and just repeats the same window without any intervening screen displays.

New display manager: No.

BUM is the bootup manager.

I looked in today's system log, during which I started three times in order to get just one request for user authentication:
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These two sequences only happened during the first of the three startups:
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Nov 10 07:15:12 george-ThinkPad-T420 avahi-daemon[619]: Found user 'avahi' (UID 107) and group 'avahi' (GID 113).
Nov 10 07:15:12 george-ThinkPad-T420 avahi-daemon[619]: Successfully dropped root privileges.
Nov 10 07:15:12 george-ThinkPad-T420 avahi-daemon[619]: avahi-daemon 0.6.31 starting up.
Nov 10 07:15:12 george-ThinkPad-T420 avahi-daemon[619]: Successfully called chroot().
Nov 10 07:15:12 george-ThinkPad-T420 avahi-daemon[619]: Successfully dropped remaining capabilities.
Nov 10 07:15:12 george-ThinkPad-T420 bluetoothd[637]: Bluetooth daemon 4.101
Nov 10 07:15:12 george-ThinkPad-T420 bluetoothd[637]: Starting SDP server
Nov 10 07:15:12 george-ThinkPad-T420 avahi-daemon[619]: No service file found in /etc/avahi/services.
...
Nov 10 07:15:22 george-ThinkPad-T420 avahi-daemon[619]: New relevant interface wlan0.IPv6 for mDNS.
Nov 10 07:15:22 george-ThinkPad-T420 avahi-daemon[619]: Registering new address record for fe80::aa54:b2ff:fea7:643d on wlan0.*.
Nov 10 07:15:23 george-ThinkPad-T420 NetworkManager[1116]: Activation (wlan0) successful, device activated.
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These sequences happened in the first two startups:
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Startup 1 (asked for user authentication twice):
Nov 10 07:15:30 george-ThinkPad-T420 gnome-session[1677]: GLib-CRITICAL: g_environ_setenv: assertion 'value != NULL' failed
Nov 10 07:15:32 george-ThinkPad-T420 kernel: [ 49.337979] do_trap: 123 callbacks suppressed
Nov 10 07:15:32 george-ThinkPad-T420 kernel: [ 49.337983] traps: gnome-panel[1877] trap int3 ip:7fc9d7fc8c13 sp:7ffda6a9e560 error:0
Nov 10 07:15:33 george-ThinkPad-T420 gnome-session[1677]: WARNING: Application 'gnome-panel.desktop' killed by signal 5
Nov 10 07:15:33 george-ThinkPad-T420 kernel: [ 51.008657] traps: gnome-panel[1967] trap int3 ip:7f00b74c9c13 sp:7ffd660f0e60 error:0
Nov 10 07:15:33 george-ThinkPad-T420 ModemManager[826]: Creating modem with plugin 'Generic' and '1' ports
Nov 10 07:15:33 george-ThinkPad-T420 ModemManager[826]: Could not grab port (tty/ttyS4): 'Cannot add port 'tty/ttyS4', unhandled serial type'
Nov 10 07:15:33 george-ThinkPad-T420 ModemManager[826]: Couldn't create modem for device at '/sys/devices/pci0000:00/0000:00:16.3': Failed to find primary AT port
Nov 10 07:15:33 george-ThinkPad-T420 gnome-session[1677]: WARNING: App 'gnome-panel.desktop' respawning too quickly
Nov 10 07:15:33 george-ThinkPad-T420 gnome-session[1677]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Nov 10 07:15:33 george-ThinkPad-T420 bluetoothd[637]: Endpoint unregistered: sender=:1.63 path=/MediaEndpoint/HFPAG
Nov 10 07:15:33 george-ThinkPad-T420 bluetoothd[637]: Endpoint unregistered: sender=:1.63 path=/MediaEndpoint/HFPHS
Nov 10 07:15:33 george-ThinkPad-T420 bluetoothd[637]: Endpoint unregistered: sender=:1.63 path=/MediaEndpoint/A2DPSource
Nov 10 07:15:33 george-ThinkPad-T420 bluetoothd[637]: Endpoint unregistered: sender=:1.63 path=/MediaEndpoint/A2DPSink
Nov 10 07:15:33 george-ThinkPad-T420 colord: device removed: xrandr-LVDS1
Nov 10 07:15:33 george-ThinkPad-T420 colord: Profile removed: icc-26153eb0fd28abe9bd6a2287f37d5be7
Nov 10 07:15:33 george-ThinkPad-T420 colord: Profile removed: icc-fc5a5724d8e38a55136af5074661119d
Nov 10 07:15:34 george-ThinkPad-T420 acpid: client 1134[0:0] has disconnected
Nov 10 07:15:34 george-ThinkPad-T420 acpid: client connected from 1979[0:0]
Nov 10 07:15:34 george-ThinkPad-T420 acpid: 1 client rule loaded
Nov 10 07:15:40 george-ThinkPad-T420 NetworkManager[1116]: (wlan0): IP6 addrconf timed out or failed.
Nov 10 07:15:40 george-ThinkPad-T420 NetworkManager[1116]: Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Nov 10 07:15:40 george-ThinkPad-T420 NetworkManager[1116]: Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) started...
Nov 10 07:15:40 george-ThinkPad-T420 NetworkManager[1116]: Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Nov 10 07:15:41 george-ThinkPad-T420 dbus[581]: [system] Activating service name='org.freedesktop.systemd1' (using servicehelper)
Nov 10 07:15:41 george-ThinkPad-T420 dbus[581]: [system] Successfully activated service 'org.freedesktop.systemd1'
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Startup 2 (asked for user authentication twice):
Nov 10 07:16:51 george-ThinkPad-T420 gnome-session[1677]: GLib-CRITICAL: g_environ_setenv: assertion 'value != NULL' failed
Nov 10 07:16:54 george-ThinkPad-T420 kernel: [ 50.342129] do_trap: 123 callbacks suppressed
Nov 10 07:16:54 george-ThinkPad-T420 kernel: [ 50.342133] traps: gnome-panel[1887] trap int3 ip:7fd8cd4ccc13 sp:7ffdb1224a60 error:0
Nov 10 07:16:54 george-ThinkPad-T420 ModemManager[830]: Creating modem with plugin 'Generic' and '1' ports
Nov 10 07:16:54 george-ThinkPad-T420 ModemManager[830]: Could not grab port (tty/ttyS4): 'Cannot add port 'tty/ttyS4', unhandled serial type'
Nov 10 07:16:54 george-ThinkPad-T420 ModemManager[830]: Couldn't create modem for device at '/sys/devices/pci0000:00/0000:00:16.3': Failed to find primary AT port
Nov 10 07:16:54 george-ThinkPad-T420 gnome-session[1677]: WARNING: Application 'gnome-panel.desktop' killed by signal 5
Nov 10 07:16:55 george-ThinkPad-T420 kernel: [ 51.481159] traps: gnome-panel[1986] trap int3 ip:7f53f154cc13 sp:7ffe5670ee00 error:0
Nov 10 07:16:55 george-ThinkPad-T420 gnome-session[1677]: WARNING: App 'gnome-panel.desktop' respawning too quickly
Nov 10 07:16:55 george-ThinkPad-T420 gnome-session[1677]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Nov 10 07:16:55 george-ThinkPad-T420 bluetoothd[619]: Endpoint unregistered: sender=:1.61 path=/MediaEndpoint/HFPAG
Nov 10 07:16:55 george-ThinkPad-T420 bluetoothd[619]: Endpoint unregistered: sender=:1.61 path=/MediaEndpoint/HFPHS
Nov 10 07:16:55 george-ThinkPad-T420 bluetoothd[619]: Endpoint unregistered: sender=:1.61 path=/MediaEndpoint/A2DPSource
Nov 10 07:16:55 george-ThinkPad-T420 bluetoothd[619]: Endpoint unregistered: sender=:1.61 path=/MediaEndpoint/A2DPSink
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.sleep-wake: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.enable-disable-wifi: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.enable-disable-wwan: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.enable-disable-wimax: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.network-control: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 colord: device removed: xrandr-LVDS1
Nov 10 07:16:55 george-ThinkPad-T420 colord: Profile removed: icc-26153eb0fd28abe9bd6a2287f37d5be7
Nov 10 07:16:55 george-ThinkPad-T420 colord: Profile removed: icc-fc5a5724d8e38a55136af5074661119d
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.wifi.share.protected: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.wifi.share.open: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.settings.modify.system: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.settings.modify.own: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 NetworkManager[1097]: error requesting auth for org.freedesktop.NetworkManager.settings.modify.hostname: (3) GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: GDBus.Error:org.freedesktop.DBus.Error.NameHasNoOwner: Could not get UID of name ':1.74': no such name
Nov 10 07:16:55 george-ThinkPad-T420 acpid: client 1103[0:0] has disconnected
Nov 10 07:16:55 george-ThinkPad-T420 acpid: client connected from 2024[0:0]
Nov 10 07:16:55 george-ThinkPad-T420 acpid: 1 client rule loaded
Nov 10 07:16:59 george-ThinkPad-T420 NetworkManager[1097]: (wlan0): IP6 addrconf timed out or failed.
Nov 10 07:16:59 george-ThinkPad-T420 NetworkManager[1097]: Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Nov 10 07:16:59 george-ThinkPad-T420 NetworkManager[1097]: Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) started...
Nov 10 07:16:59 george-ThinkPad-T420 NetworkManager[1097]: Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Nov 10 07:17:00 george-ThinkPad-T420 wpa_supplicant[1157]: wlan0: CTRL-EVENT-SCAN-STARTED
Nov 10 07:17:01 george-ThinkPad-T420 CRON[2167]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Nov 10 07:17:02 george-ThinkPad-T420 kernel: [ 58.254703] type=1400 audit(1447157822.082:53): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2175 comm="apparmor_parser"
Nov 10 07:17:02 george-ThinkPad-T420 kernel: [ 58.254709] type=1400 audit(1447157822.082:54): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2175 comm="apparmor_parser"
Nov 10 07:17:02 george-ThinkPad-T420 kernel: [ 58.255045] type=1400 audit(1447157822.082:55): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2175 comm="apparmor_parser"
Nov 10 07:17:02 george-ThinkPad-T420 colord: Profile added: HP-LaserJet-P1505n-Gray..
Nov 10 07:17:02 george-ThinkPad-T420 colord: Device added: cups-HP-LaserJet-P1505n
Nov 10 07:17:04 george-ThinkPad-T420 dbus[567]: [system] Activating service name='org.freedesktop.systemd1' (using servicehelper)
Nov 10 07:17:04 george-ThinkPad-T420 dbus[567]: [system] Successfully activated service 'org.freedesktop.systemd1'

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Following is the same region of the startup record for the third (successful) startup:
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Startup 3 (only asked for user authentication once):
Nov 10 07:18:11 george-ThinkPad-T420 gnome-session[1663]: GLib-CRITICAL: g_environ_setenv: assertion 'value != NULL' failed
Nov 10 07:18:13 george-ThinkPad-T420 ModemManager[784]: Creating modem with plugin 'Generic' and '1' ports
Nov 10 07:18:14 george-ThinkPad-T420 ModemManager[784]: Could not grab port (tty/ttyS4): 'Cannot add port 'tty/ttyS4', unhandled serial type'
Nov 10 07:18:14 george-ThinkPad-T420 ModemManager[784]: Couldn't create modem for device at '/sys/devices/pci0000:00/0000:00:16.3': Failed to find primary AT port
Nov 10 07:18:15 george-ThinkPad-T420 dbus[573]: [system] Activating service name='org.freedesktop.UDisks2' (using servicehelper)
Nov 10 07:18:15 george-ThinkPad-T420 udisksd[1978]: udisks daemon version 2.1.3 starting
Nov 10 07:18:15 george-ThinkPad-T420 dbus[573]: [system] Successfully activated service 'org.freedesktop.UDisks2'
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Note that the third startup is to a different service than the first two.

What is the difference between org.freedesktop.systemd1 and org.freedesktop.UDisks2 ?

Taking a stab at answering my own question:
> What is the difference between org.freedesktop.systemd1 and org.freedesktop.UDisks2 ?

The latter makes it possible to mount a [Windows] hard drive without a password;
the former ? http://trisquel.info/en/forum/could-systemd-be-inconvenient-portability

Is this another wet pants-psychiatrist problem ?

Next time I'll just enter my password a second time and see what happens.

Last night I wrote:
> Next time I'll just enter my password a second time and see what happens.

OK. I did it, and I was asked to authenticate _three_ times.

All I can say is that I see these twice in the syslog:

> Nov 12 08:21:32 george-ThinkPad-T420 kernel: [ 53.726908] do_trap: 105 callbacks suppressed
> Nov 12 08:21:32 george-ThinkPad-T420 kernel: [ 53.726912] traps: gnome-panel[1873] trap int3 ip:7f266e18fc13 sp:7fff36dd0f40 error:0
> Nov 12 08:21:33 george-ThinkPad-T420 gnome-session[1677]: WARNING: Application 'gnome-panel.desktop' killed by signal 5
> Nov 12 08:21:33 george-ThinkPad-T420 kernel: [ 54.711111] traps: gnome-panel[1962] trap int3 ip:7f2eeb21ec13 sp:7fff27e3bd50 error:0
> Nov 12 08:21:33 george-ThinkPad-T420 gnome-session[1677]: WARNING: App 'gnome-panel.desktop' respawning too quickly
> Nov 12 08:21:33 george-ThinkPad-T420 gnome-session[1677]: CRITICAL: We failed, but the fail whale is dead. Sorry....

> Nov 12 08:21:47 george-ThinkPad-T420 kernel: [ 68.892798] traps: gnome-panel[2337] trap int3 ip:7f87feb1ac13 sp:7ffebee3f880 error:0
> Nov 12 08:21:47 george-ThinkPad-T420 dbus[930]: [system] Activating service name='org.freedesktop.UDisks2' (using servicehelper)
> Nov 12 08:21:47 george-ThinkPad-T420 gnome-session[2133]: WARNING: Application 'gnome-panel.desktop' killed by signal 5
> Nov 12 08:21:47 george-ThinkPad-T420 kernel: [ 69.144803] traps: gnome-panel[2451] trap int3 ip:7feaedad2c13 sp:7ffc44a8d2f0 error:0
> Nov 12 08:21:48 george-ThinkPad-T420 gnome-session[2133]: WARNING: App 'gnome-panel.desktop' respawning too quickly
> Nov 12 08:21:48 george-ThinkPad-T420 gnome-session[2133]: CRITICAL: We failed, but the fail whale is dead. Sorry....

There were three numbered gnome-sessions, and org.freedesktop.systemd1 won out in the end.

I tried dmesg |tail:

[ 37.597201] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 37.838924] init: samba-ad-dc main process (1347) terminated with status 1
[ 53.726908] do_trap: 105 callbacks suppressed
[ 53.726912] traps: gnome-panel[1873] trap int3 ip:7f266e18fc13 sp:7fff36dd0f40 error:0
[ 54.711111] traps: gnome-panel[1962] trap int3 ip:7f2eeb21ec13 sp:7fff27e3bd50 error:0
[ 68.892798] traps: gnome-panel[2337] trap int3 ip:7f87feb1ac13 sp:7ffebee3f880 error:0
[ 69.144803] traps: gnome-panel[2451] trap int3 ip:7feaedad2c13 sp:7ffc44a8d2f0 error:0
[ 1390.920079] type=1400 audit(1447335829.661:59): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=3443 comm="apparmor_parser"
[ 1390.920091] type=1400 audit(1447335829.661:60): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=3443 comm="apparmor_parser"
[ 1390.920976] type=1400 audit(1447335829.662:61): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=3443 comm="apparmor_parser"

There are a bunch of bugs related to "gnome-panel trap int3" but I see no solutions.

I ran Software-updater and got Linux-Libre 3.13.0-678lowlatency, etc.

Still asking for the password twice ...

Here's what seems to be the trouble in the syslog:

> Nov 12 12:52:05 george-ThinkPad-T420 kernel: [ 51.353770] traps: gnome-panel[1974] trap int3 ip:7fe5b372dc13 sp:7ffd3b78b250 error:0
> Nov 12 12:52:05 george-ThinkPad-T420 gnome-session[1669]: WARNING: App 'gnome-panel.desktop' respawning too quickly
> Nov 12 12:52:05 george-ThinkPad-T420 gnome-session[1669]: CRITICAL: We failed, but the fail whale is dead. Sorry....

Here's what I get with dmesg, in part:

[ 38.663736] wlan0: authenticate with 00:7f:28:26:11:a1
[ 39.097440] wlan0: send auth to 00:7f:28:26:11:a1 (try 1/3)
[ 39.099319] wlan0: authenticated
[ 39.100327] wlan0: associate with 00:7f:28:26:11:a1 (try 1/3)
[ 39.103900] wlan0: RX AssocResp from 00:7f:28:26:11:a1 (capab=0x431 status=0 aid=1)
[ 39.116132] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 39.116270] wlan0: associated
[ 39.147136] wlan0: deauthenticating from 00:7f:28:26:11:a1 by local choice (reason=2)
[ 39.294825] cfg80211: Calling CRDA for country: US
[ 39.294922] wlan0: authenticate with 00:7f:28:26:11:a1
[ 39.570701] wlan0: send auth to 00:7f:28:26:11:a1 (try 1/3)
[ 39.572553] wlan0: authenticated
[ 39.573410] wlan0: associate with 00:7f:28:26:11:a1 (try 1/3)
[ 39.576934] wlan0: RX AssocResp from 00:7f:28:26:11:a1 (capab=0x431 status=0 aid=1)
[ 39.591218] wlan0: associated
[ 47.912367] do_trap: 105 callbacks suppressed
[ 47.912372] traps: gnome-panel[1874] trap int3 ip:7ffad67b2c13 sp:7ffd85afc550 error:0
[ 51.353770] traps: gnome-panel[1974] trap int3 ip:7fe5b372dc13 sp:7ffd3b78b250 error:0

These multiple password requests seem to be coming from wlan0.

SuperTramp83 suggested that I see the the proverbial psychiatrist about a problem that appears to be mine alone, so I can let my system keep on doing the double-password thing without having it get under my skin. He's right !

In the meantime I'm gradually stashing my important data in safe places ... when that's accomplished, I'll probably _really_ not care much about the double passwords any more. After all, it's just the authorization of wlan0.

Solved. Everybody except the developer[s?] gave up on this issue, and so it went away. Dunno why ...