sim:nxwm Test failure

[btashton]

For the sim:nxwm target the simulation crashes

❯ ./nuttx 
nxwm_main: Initialize the NSH library
ERROR: Failed to register oneshot at /dev/oneshot: -17
createTaskbar: Create CTaskbar instance
createTaskbar: Connect CTaskbar instance to the NX server
createTaskbar: Initialize CTaskbar instance
Segmentation fault (core dumped)

[xiaoxiang781216]

May relate to my timer reconstruction, let's take a look.

[sebastianene07]

It doesn't seem to be from the timer, that error from the boot log can be suppressed by disabling CONFIG_NSH_ARCHINIT. In this case the up_oneshot registration is not called twice from the boardctl logic.

I investigated this a little bit, here are some logs:

Program received signal SIGSEGV, Segmentation fault.
                                                    0x00005555555920b5 in nxmu_sendwindow (wnd=0x0, msg=0x7ffff3ccfdb0, msglen=16) at nxmu/nxmu_sendwindow.c:87
87	  if (!NXBE_ISBLOCKED(wnd))
(gdb) bt
#0  0x00005555555920b5 in nxmu_sendwindow (wnd=0x0, msg=0x7ffff3ccfdb0, msglen=16) at nxmu/nxmu_sendwindow.c:87
#1  0x000055555559248d in nx_getposition (hwnd=0x0) at nxmu/nx_getposition.c:94
#2  0x000055555556fe13 in NXWidgets::CWidgetControl::waitGeoData (this=0x7ffff3cd5038) at src/cwidgetcontrol.cxx:950
#3  0x00005555555a8ec8 in NXWidgets::CWidgetControl::getWindowSize (this=0x7ffff3cd5038, size=0x7ffff3ccfe6c)
    at /home/seb/repos/incubator-nuttx-apps/include/graphics/nxwidgets/cwidgetcontrol.hxx:730
#4  0x000055555556d367 in NXWidgets::CNxWindow::getSize (this=0x7ffff3cd51b0, pSize=0x7ffff3ccfe6c) at src/cnxwindow.cxx:165
#5  0x0000555555564a3a in NxWM::CTaskbar::createBackgroundImage (this=0x7ffff3cd01f0) at src/ctaskbar.cxx:1001
#6  0x0000555555563dad in NxWM::CTaskbar::initWindowManager (this=0x7ffff3cd01f0) at src/ctaskbar.cxx:224
#7  0x000055555556359a in createTaskbar () at src/nxwm_main.cxx:181
#8  0x000055555556395c in nxwm_main (argc=1, argv=0x7ffff3ccff60) at src/nxwm_main.cxx:524
#9  0x000055555556110a in nxtask_startup (entrypt=0x5555555638fd <nxwm_main(int, char**)>, argc=1, argv=0x7ffff3ccff60)
    at sched/task_startup.c:165
#10 0x000055555555d34f in nxtask_start () at task/task_start.c:144
#11 0x0000000000000000 in ?? ()
(gdb) f 0
#0  0x00005555555920b5 in nxmu_sendwindow (wnd=0x0, msg=0x7ffff3ccfdb0, msglen=16) at nxmu/nxmu_sendwindow.c:87
87	  if (!NXBE_ISBLOCKED(wnd))
(gdb) p wnd
$1 = (struct nxbe_window_s *) 0x0

Also, the up_oneshot driver registration seems to be called twice from boarctl logic (this is the reason why is failing)

from:

#0  oneshot_register (devname=0x0, lower=0x5555555b3a07) at timers/oneshot.c:345
#1  0x00005555555a698e in sim_bringup () at sim_bringup.c:225
#2  0x00005555555a68e1 in board_app_initialize (arg=0) at sim_appinit.c:80
#3  0x000055555559bb4a in boardctl (cmd=65281, arg=0) at boardctl.c:326
#4  0x000055555557410d in nsh_initialize () at nsh_init.c:103
#5  0x0000555555567cd2 in NxWM::nshlibInitialize () at src/cnxterm.cxx:682
#6  0x0000555555563935 in nxwm_main (argc=1, argv=0x7ffff3ccff60) at src/nxwm_main.cxx:515

and from :

#0  oneshot_register (devname=0x0, lower=0x5555555b3a07) at timers/oneshot.c:345
#1  0x00005555555a698e in sim_bringup () at sim_bringup.c:225
#2  0x00005555555a68e1 in board_app_initialize (arg=0) at sim_appinit.c:80
#3  0x000055555559bb4a in boardctl (cmd=65281, arg=0) at boardctl.c:326
#4  0x000055555556391f in nxwm_main (argc=1, argv=0x7ffff3ccff60) at src/nxwm_main.cxx:508

[sebastianene07]

I have a fix for this but I cannot link it to the ticket because it's in a separate repo:
apache/nuttx-apps#456

[xiaoxiang781216]

@sebastianene07 thanks to find the fix.

[btashton]

This is not fully resolved until apache/nuttx-apps#456
Is merged correct?

[sebastianene07]

This is not fully resolved until apache/incubator-nuttx-apps#456
Is merged correct?

I confirm

[btashton]

App side backport that will close this issue out apache/nuttx-apps#458

@sebastianene07 thanks for taking care of this one.