FreeBSD/Linux Kernel Cross Reference
sys/man/memory_object_data_error.man

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    .\" HISTORY
    .\" $Log:       memory_object_data_error.man,v $
    .\" Revision 2.5  93/05/10  19:33:27  rvb
    .\"     updated
    .\"     [93/04/21  16:08:11  lli]
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    .\" Revision 2.4  91/05/14  17:08:46  mrt
    .\"     Correcting copyright
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    .\"     Changed to new Mach copyright
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    .\" Revision 2.2  90/08/07  18:39:36  rpd
    .\"     Created.
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    .TH memory_object_data_error 2 12/18/89
    .CM 4
    .SH NAME
    .nf
    memory_object_data_error  \-  indicates data retrieval failure
    .SH SYNOPSIS
    .nf
    .ft B
    #include <mach.h>
    
    .nf
    .ft B
    kern_return_t memory_object_data_error(memory_control,
                                    offset, size, reason);
            mach_port_t
                            memory_control;
            vm_offset_t     offset;
            vm_size_t       size;
            kern_return_t   reason;
    
    
    .fi
    .ft P
    .SH DESCRIPTION
    
    .B memory_object_data_error
    indicates that the memory manager cannot return
    the data requested for the given region, specifying a reason for the error.
    This is typically used when a hardware error is encountered.
    
    .SH ARGUMENTS
    .TP 15
    .B
    memory_control
    The port, provided by the kernel 
    in a 
    .B memory_object_init
    call, to which cache management requests may be issued.
    .TP 15
    .B
    offset
    An offset within a memory object, in bytes.  This must be
    page aligned.
    .TP 15
    .B
    size
    The amount of cached data (starting at 
    .B offset
    ) to be handled.
    This must be an integral multiple of the memory object page size.
    .TP 15
    .B
    reason
    Could be a Unix error code for a hardware error.
    
    .SH DIAGNOSTICS
    .TP 25
   KERN_SUCCESS
   This routine does not receive a reply message (and consequently
   has no return value), so only message transmission errors apply.
   
   .SH SEE ALSO
   .B memory_object_data_request, memory_object_data_provided
   
   .SH BUGS
   
   The error code is currently ignored.
   

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