Where do you test recordH validity after the DmQueryRecord call?
----- Original Message -----
From: "Praveen Potineni" <[EMAIL PROTECTED]>
Newsgroups: palm-dev-forum
To: "Palm Developer Forum" <[EMAIL PROTECTED]>
Sent: Thursday, September 13, 2001 8:29 PM
Subject: Re: Bus Error
> Tom,
> This is what i see in the debugger stack....
>
> For first error
> "*** just read from memory location 0x00000006, which is in low
> memory.",
> i think is occuring at DmQueryRecord method... in the code:
>
> SiteDB=DmOpenDatabaseByTypeCreator(SiteDeptDBType, creator,
> dmModeReadWrite);
> //Assign global variables SiteID, DeptID here
> recordH = DmQueryRecord(SiteDB, 0);
> recordP =(SiteDeptRecordTypePtr)MemHandleLock(recordH);
> SiteID = recordP->siteID;
> DeptID = recordP->deptID;
> MemHandleUnlock(recordH);
>
>
> and when i continue the debugger i get second error
> 2)"*** just read from memory location 0x47121113, causing a bus error."
>
> Second error on the Debugger stack shows this: PrvRecordEntryPtr(But i'm
not
> sure what it is.)
>
> Any ideas/help on this...
>
> Thanks
> Praveen
>
> > "Tom Hoelscher" <[EMAIL PROTECTED]> wrote in message
> > news:62390@palm-dev-forum...
> > >
> > > What are you doing right before the first error?
> > >
> > > If you are reading from (or moving data from) some kind of handle,
it's
> > > possible you are stepping outside the handle...
> > >
> > > You may also be manipulating a handle/var that you haven't allocated
yet
> > (or
> > > have deallocated).
> > >
> > >
> > >
> > > on 9/13/01 15:42, Praveen Potineni at [EMAIL PROTECTED] wrote:
> > >
> > > > Hi All,
> > > >
> > > > I am trying to debug an application using pose 3.2 and i'm getting
> these
> > > > errors:
> > > >
> > > > 1)"*** just read from memory location 0x00000006, which is in low
> > memory."
> > > > and when i continue the debugger i get second error
> > > > 2)"*** just read from memory location 0x47121113, causing a bus
> error."
> > > >
> > > > Can u help me with this..i'm new to palm development and i'm not yet
> > quite
> > > > sure how to debug and find unintialized variables...
> > > >
> > > > Thanks
> > > > Praveen
>
>
>
>
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