[Mono-bugs] [Bug 76192][Nor] Changed - Can't write files past 2gb on AMD64 (x86_64)

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Changed by brion at pobox.com.

http://bugzilla.ximian.com/show_bug.cgi?id=76192

--- shadow/76192	2005-09-22 17:05:15.000000000 -0400
+++ shadow/76192.tmp.8835	2005-09-22 17:09:56.000000000 -0400
@@ -2,13 +2,13 @@
 Product: Mono: Runtime
 Version: 1.1
 OS: GNU/Linux [Other]
 OS Details: Fedora Core 3 x86_64
 Status: NEW   
 Resolution: 
-Severity: 
+Severity: Unknown
 Priority: Normal
 Component: io-layer
 AssignedTo: dick at ximian.com                            
 ReportedBy: brion at pobox.com               
 QAContact: mono-bugs at ximian.com
 TargetMilestone: ---
@@ -55,6 +55,20 @@
 
 
 ------- Additional Comments From brion at pobox.com  2005-09-22 17:05 -------
 Created an attachment (id=15778)
 Patch to mono/io-layer/io.c which appears to fix the problem
 
+
+------- Additional Comments From brion at pobox.com  2005-09-22 17:09 -------
+To demo sign extension problem:
+$ gcc -o try `pkg-config --cflags glib-2.0` try.c  && ./try
+offset -1149239296  highmovedistance 0  distance -1149239296
+offset 3145728000  highmovedistance 0  distance -1149239296
+
+First line is as the code is written in io.c; second line is as patched.
+
+Attached patch seems to get the offset flowing positively again and I can successfully write 
+out a 3000MB file on amd64 with it applied against 1.1.9. It's unclear to me whether 
+file_seek() is supposed to accept negative values here or what will happen to them, so this 
+might not be a totally correct patch.
+