[haiku-bugs] Re: [Haiku] #8460: ISO9660 can not read CDs bigger than 4.7G
- From: "scdbackup" <trac@xxxxxxxxxxxx>
- Date: Tue, 10 Apr 2012 19:18:24 -0000
#8460: ISO9660 can not read CDs bigger than 4.7G
-------------------------------------+----------------------------
Reporter: jahaiku | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: File Systems/ISO 9660 | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
-------------------------------------+----------------------------
Comment (by scdbackup):
4.7 GB is a strange threshhold for an error. Is there a module which
does not believe in larger DVDs and silently fiddles with the addresses ?
Function iterative_io_get_vecs_hook() in iso9660/kernel_interface.cpp
looks as if it computes the start byte of the data of a file.
Its computation would yield the correct byte address in the image
if parameter "offset" is 0, and type "off_t" has 64 bits.
Maybe one should trace some info there.
E.g. the values of
{{{
offset, node->startLBN[FS_DATA_FORMAT]
}}}
and the resulting value of
{{{
vecs->offset
}}}
--
Ticket URL: <http://dev.haiku-os.org/ticket/8460#comment:12>
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