Qt-embedded-interest Archive, November 2006
Qt-embedded application on ETRAX-100LX board
Message 1 in thread
hi,
We cross compiled qt-embedded application using cris arch. When i runs the
application on board ETRAX-100LX(CRIS architecture)
./aclock -qws
it will give the following error
Cannot create semaphore /tmp/qtembedded-root/QtEmbedded-0 'd'
Error 38 Function not implemented
Cannot get display lock
Can anybody tell us what's the problem and how to resolve it.
Thanks and Regards,
Niranjan.
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Message 2 in thread
Do you have a /tmp directory on the system that is read/write?
Ralph Walden
> -----Original Message-----
> From: niranjank@xxxxxxxxxxxx [mailto:niranjank@xxxxxxxxxxxx]
> Sent: Monday, November 06, 2006 6:59 AM
> To: qt-embedded-interest@xxxxxxxxxxxxx
> Cc: swapnil@xxxxxxxxxxxx; vishalp@xxxxxxxxxxxx
> Subject: Qt-embedded application on ETRAX-100LX board
>
> hi,
>
> We cross compiled qt-embedded application using cris arch.
> When i runs the
> application on board ETRAX-100LX(CRIS architecture)
>
> ./aclock -qws
>
> it will give the following error
>
> Cannot create semaphore /tmp/qtembedded-root/QtEmbedded-0 'd'
> Error 38 Function not implemented
>
> Cannot get display lock
>
>
> Can anybody tell us what's the problem and how to resolve it.
>
> Thanks and Regards,
> Niranjan.
>
> To unsubscribe - send "unsubscribe" in the subject to
> qt-embedded-interest-request@xxxxxxxxxxxxx
>
>
> --
> This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
>
>
To unsubscribe - send "unsubscribe" in the subject to qt-embedded-interest-request@xxxxxxxxxxxxx
Message 3 in thread
Try deleting all of the contents of /tmp and run again.
With "rm -rf /tmp/*"
I've seen stale lock files (or whatever Qt does out there) make it not
run.
Ralph Walden
> -----Original Message-----
> From: swapnil@xxxxxxxxxxxx [mailto:swapnil@xxxxxxxxxxxx]
> Sent: Monday, November 06, 2006 10:47 PM
> To: Ralph Walden
> Subject: RE: Qt-embedded application on ETRAX-100LX board
>
> Dear sir,
> /tmp directory having permision
> drwxrwxrwt
> The simple program runs succesfully but when program contains
> "QApplication"
> statement gives that 3 error..
>
> > Do you have a /tmp directory on the system that is read/write?
> >
> > Ralph Walden
> >
> >> -----Original Message-----
> >> From: niranjank@xxxxxxxxxxxx [mailto:niranjank@xxxxxxxxxxxx]
> >> Sent: Monday, November 06, 2006 6:59 AM
> >> To: qt-embedded-interest@xxxxxxxxxxxxx
> >> Cc: swapnil@xxxxxxxxxxxx; vishalp@xxxxxxxxxxxx
> >> Subject: Qt-embedded application on ETRAX-100LX board
> >>
> >> hi,
> >>
> >> We cross compiled qt-embedded application using cris arch.
> >> When i runs the
> >> application on board ETRAX-100LX(CRIS architecture)
> >>
> >> ./aclock -qws
> >>
> >> it will give the following error
> >>
> >> Cannot create semaphore /tmp/qtembedded-root/QtEmbedded-0 'd'
> >> Error 38 Function not implemented
> >>
> >> Cannot get display lock
> >>
> >>
> >> Can anybody tell us what's the problem and how to resolve it.
> >>
> >> Thanks and Regards,
> >> Niranjan.
> >>
> >> To unsubscribe - send "unsubscribe" in the subject to
> >> qt-embedded-interest-request@xxxxxxxxxxxxx
> >>
> >>
> >> --
> >> This message has been scanned for viruses and
> >> dangerous content by MailScanner, and is
> >> believed to be clean.
> >>
> >>
> >
>
>
> --
> This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
>
>
To unsubscribe - send "unsubscribe" in the subject to qt-embedded-interest-request@xxxxxxxxxxxxx
Message 4 in thread
> >> -----Original Message-----
> >> From: swapnil@xxxxxxxxxxxx [mailto:swapnil@xxxxxxxxxxxx]
> >> Sent: Monday, November 06, 2006 10:47 PM
> >> To: Ralph Walden
> >> Subject: RE: Qt-embedded application on ETRAX-100LX board
> >>
> >> Dear sir,
> >> /tmp directory having permision
> >> drwxrwxrwt
> >> The simple program runs succesfully but when program contains
> >> "QApplication"
> >> statement gives that 3 error..
> >>
> >> > Do you have a /tmp directory on the system that is read/write?
> >> >
> >> > Ralph Walden
> >> >
> >> >> -----Original Message-----
> >> >> From: niranjank@xxxxxxxxxxxx [mailto:niranjank@xxxxxxxxxxxx]
> >> >> Sent: Monday, November 06, 2006 6:59 AM
> >> >> To: qt-embedded-interest@xxxxxxxxxxxxx
> >> >> Cc: swapnil@xxxxxxxxxxxx; vishalp@xxxxxxxxxxxx
> >> >> Subject: Qt-embedded application on ETRAX-100LX board
> >> >>
> >> >> hi,
> >> >>
> >> >> We cross compiled qt-embedded application using cris arch.
> >> >> When i runs the
> >> >> application on board ETRAX-100LX(CRIS architecture)
> >> >>
> >> >> ./aclock -qws
> >> >>
> >> >> it will give the following error
> >> >>
> >> >> Cannot create semaphore /tmp/qtembedded-root/QtEmbedded-0 'd'
> >> >> Error 38 Function not implemented
> >> >>
> >> >> Cannot get display lock
> >> >>
> >> >>
> >> >> Can anybody tell us what's the problem and how to resolve it.
> >> >>
> >> >> Thanks and Regards,
> >> >> Niranjan.
> >> >>
> >> >> To unsubscribe - send "unsubscribe" in the subject to
> >> >> qt-embedded-interest-request@xxxxxxxxxxxxx
> >> >>
> >> >>
> >> >> --
> >> >> This message has been scanned for viruses and
> >> >> dangerous content by MailScanner, and is
> >> >> believed to be clean.
Do you have free space on / ?
In looking at the error message further, it seems like the semaphore is
not implemented in your kernel.
I'm not quite sure which option in config to look for, perhaps "System V
IPC" under General Setup?
Ralph Walden
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