* [Bug libc/13047] On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB
2011-07-31 1:11 [Bug libc/13047] New: On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB lsatenstein at yahoo dot com
@ 2011-07-31 1:12 ` lsatenstein at yahoo dot com
2011-07-31 18:58 ` aj at suse dot de
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: lsatenstein at yahoo dot com @ 2011-07-31 1:12 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13047
--- Comment #1 from Leslie Satenstein <lsatenstein at yahoo dot com> 2011-07-31 01:11:42 UTC ---
Large DVD Iso files can't be copied.
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* [Bug libc/13047] On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB
2011-07-31 1:11 [Bug libc/13047] New: On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB lsatenstein at yahoo dot com
2011-07-31 1:12 ` [Bug libc/13047] " lsatenstein at yahoo dot com
@ 2011-07-31 18:58 ` aj at suse dot de
2011-07-31 23:24 ` lsatenstein at yahoo dot com
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: aj at suse dot de @ 2011-07-31 18:58 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13047
Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |aj at suse dot de
Resolution| |INVALID
--- Comment #2 from Andreas Jaeger <aj at suse dot de> 2011-07-31 18:57:27 UTC ---
Not a bug in glibc but a limitation of a 32-bit system unless you use the
proper interfaces, see for example this web page:
http://www.suse.de/~aj/linux_lfs.html
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* [Bug libc/13047] On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB
2011-07-31 1:11 [Bug libc/13047] New: On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB lsatenstein at yahoo dot com
2011-07-31 1:12 ` [Bug libc/13047] " lsatenstein at yahoo dot com
2011-07-31 18:58 ` aj at suse dot de
@ 2011-07-31 23:24 ` lsatenstein at yahoo dot com
2011-08-01 7:22 ` aj at suse dot de
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: lsatenstein at yahoo dot com @ 2011-07-31 23:24 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13047
Leslie Satenstein <lsatenstein at yahoo dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
--- Comment #3 from Leslie Satenstein <lsatenstein at yahoo dot com> 2011-07-31 23:24:23 UTC ---
Here is my come-back. Since one can add a #define to allow using buffered IO
(fread, fwrite, etc) for files in excess of 2 gigabytes. then this define
should be permanent within stdio.h . I wanted to read an ISO DVD and could
not. I would refer the owner of this maintenance problem to the actual
libc.pdf file section 4.17, which makes no mention of the #define. (However in
respoonse to Andreas Jaeger, personal reply (which I appreciate receiving and
for which I thank him), using the search of the libc.PDF I did find a chapter
about large file support.
Something is wrong when today a large file is one measured in petabytes. Please
redirect this topic and this bug to the documentation project and of course to
a steering committee to update the stream IO functionality to handle very large
files, or to state that in the libc.pdf fopen() document, to refer to the large
file section.
I lost quite a few hours of digging to independently discoover the #define that
enables large file support. I would also ask why large file support is turned
on for 64 bit linux? Had 64 bit linux the same constraint, I would have not
been concerned. (I was porting code from 64bit to 32bit), for older systems.
Thank you again Andreas, for the prompt reply.
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* [Bug libc/13047] On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB
2011-07-31 1:11 [Bug libc/13047] New: On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB lsatenstein at yahoo dot com
` (2 preceding siblings ...)
2011-07-31 23:24 ` lsatenstein at yahoo dot com
@ 2011-08-01 7:22 ` aj at suse dot de
2011-08-07 17:57 ` bugdal at aerifal dot cx
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: aj at suse dot de @ 2011-08-01 7:22 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13047
Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID
--- Comment #4 from Andreas Jaeger <aj at suse dot de> 2011-08-01 07:21:49 UTC ---
This is how POSIX defines it. Changing it is not possible without breaking
programs.
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* [Bug libc/13047] On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB
2011-07-31 1:11 [Bug libc/13047] New: On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB lsatenstein at yahoo dot com
` (3 preceding siblings ...)
2011-08-01 7:22 ` aj at suse dot de
@ 2011-08-07 17:57 ` bugdal at aerifal dot cx
2012-05-14 4:22 ` bugdal at aerifal dot cx
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: bugdal at aerifal dot cx @ 2011-08-07 17:57 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13047
Rich Felker <bugdal at aerifal dot cx> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bugdal at aerifal dot cx
--- Comment #5 from Rich Felker <bugdal at aerifal dot cx> 2011-08-07 17:56:48 UTC ---
Please reopen and rename this bug. It should be called "It's 2011 and
-D_FILE_OFFSET_BITS=64 is still not the default." Seriously, the attempt at
coexistence between programs compiled correctly and a few that mistakenly
omitted -D_FILE_OFFSET_BITS=64 is an endless source of subtle bugs - for
instance if a 32-bit-offset program inherits a file descriptor from a
64-bit-offset one, which happens basically anytime a properly built shell runs
a 32-bit-offset program.
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* [Bug libc/13047] On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB
2011-07-31 1:11 [Bug libc/13047] New: On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB lsatenstein at yahoo dot com
` (4 preceding siblings ...)
2011-08-07 17:57 ` bugdal at aerifal dot cx
@ 2012-05-14 4:22 ` bugdal at aerifal dot cx
2012-05-14 10:55 ` joseph at codesourcery dot com
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: bugdal at aerifal dot cx @ 2012-05-14 4:22 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13047
Rich Felker <bugdal at aerifal dot cx> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
--- Comment #6 from Rich Felker <bugdal at aerifal dot cx> 2012-05-14 04:22:36 UTC ---
As per my comment last year, I think this issue merits revisiting. Since the
intended protections against bad behavior/file corruption break down when file
descriptors are inherited between programs built with differing values for
_FILE_OFFSET_BITS, and since it's now 2012, I think there's a strong argument
to be made for making 64-bit off_t the default. I know a small but persistent
number of programs on Debian and other mainstream dists are still built without
any attention to _FILE_OFFSET_BITS, and this leads to broken corner case
issues. Fixing this at the libc level makes a lot more sense than fixing it in
every single program...
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* [Bug libc/13047] On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB
2011-07-31 1:11 [Bug libc/13047] New: On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB lsatenstein at yahoo dot com
` (5 preceding siblings ...)
2012-05-14 4:22 ` bugdal at aerifal dot cx
@ 2012-05-14 10:55 ` joseph at codesourcery dot com
2014-06-13 14:36 ` [Bug libc/13047] Make 64-bit off_t the default on i386 and others fweimer at redhat dot com
2014-06-13 14:37 ` fweimer at redhat dot com
8 siblings, 0 replies; 10+ messages in thread
From: joseph at codesourcery dot com @ 2012-05-14 10:55 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13047
--- Comment #7 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2012-05-14 10:55:19 UTC ---
Note that using _FILE_OFFSET_BITS=64 introduces namespace issues for which
I've filed bug 14106 (although hopefully not many real programs actually
do anything that would be affected by those issues).
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* [Bug libc/13047] Make 64-bit off_t the default on i386 and others
2011-07-31 1:11 [Bug libc/13047] New: On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB lsatenstein at yahoo dot com
` (6 preceding siblings ...)
2012-05-14 10:55 ` joseph at codesourcery dot com
@ 2014-06-13 14:36 ` fweimer at redhat dot com
2014-06-13 14:37 ` fweimer at redhat dot com
8 siblings, 0 replies; 10+ messages in thread
From: fweimer at redhat dot com @ 2014-06-13 14:36 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=13047
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |fweimer at redhat dot com
Summary|On 32 bit system (UBUNTU |Make 64-bit off_t the
|Natty) Cannot open a file |default on i386 and others
|of size 5GB |
Severity|critical |normal
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* [Bug libc/13047] Make 64-bit off_t the default on i386 and others
2011-07-31 1:11 [Bug libc/13047] New: On 32 bit system (UBUNTU Natty) Cannot open a file of size 5GB lsatenstein at yahoo dot com
` (7 preceding siblings ...)
2014-06-13 14:36 ` [Bug libc/13047] Make 64-bit off_t the default on i386 and others fweimer at redhat dot com
@ 2014-06-13 14:37 ` fweimer at redhat dot com
8 siblings, 0 replies; 10+ messages in thread
From: fweimer at redhat dot com @ 2014-06-13 14:37 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=13047
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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