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August 26, 2015 MmFile : Is this std.mmFile BUG? | ||||
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Hi, all. I have a question. When 'testdic' file does' t exist, something wrong. --- import std.mmFile; int main() { auto x = new MmFile("testdic",MmFile.Mode.readWrite,0,null); return 0; } --- OSX 10.10.3 , DMD64 D Compiler v2.069-devel-d0327d9 After testdic file (size=0) was made, Segmentation Fault: 11 . I don't know whether this code is typical use. Is this Phobos BUG? or BY DESIGN? |
August 26, 2015 Re: MmFile : Is this std.mmFile BUG? | ||||
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Posted in reply to Junichi Nakata | On Wednesday, 26 August 2015 at 15:49:23 UTC, Junichi Nakata wrote:
> Hi, all.
> I have a question.
> When 'testdic' file does' t exist, something wrong.
>
> ---
> import std.mmFile;
>
> int main() {
> auto x = new MmFile("testdic",MmFile.Mode.readWrite,0,null);
> return 0;
> }
>
> ---
> OSX 10.10.3 ,
> DMD64 D Compiler v2.069-devel-d0327d9
>
> After testdic file (size=0) was made, Segmentation Fault: 11 .
>
> I don't know whether this code is typical use.
> Is this Phobos BUG? or BY DESIGN?
Note that mmap-ing a zero-length range is invalid on Linux. Dunno about OSX; it shouldn't segfault though.
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August 26, 2015 Re: MmFile : Is this std.mmFile BUG? | ||||
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Posted in reply to Alex Parrill | On Wednesday, 26 August 2015 at 17:30:29 UTC, Alex Parrill wrote: > On Wednesday, 26 August 2015 at 15:49:23 UTC, Junichi Nakata wrote: >> Hi, all. >> I have a question. >> When 'testdic' file does' t exist, something wrong. >> >> --- >> import std.mmFile; >> >> int main() { >> auto x = new MmFile("testdic",MmFile.Mode.readWrite,0,null); >> return 0; >> } >> >> --- >> OSX 10.10.3 , >> DMD64 D Compiler v2.069-devel-d0327d9 >> >> After testdic file (size=0) was made, Segmentation Fault: 11 . >> >> I don't know whether this code is typical use. >> Is this Phobos BUG? or BY DESIGN? > > Note that mmap-ing a zero-length range is invalid on Linux. Dunno about OSX; it shouldn't segfault though. https://issues.dlang.org/show_bug.cgi?id=14968 |
August 27, 2015 Re: MmFile : Is this std.mmFile BUG? | ||||
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Posted in reply to rsw0x | On Wednesday, 26 August 2015 at 22:07:01 UTC, rsw0x wrote: > On Wednesday, 26 August 2015 at 17:30:29 UTC, Alex Parrill wrote: >> On Wednesday, 26 August 2015 at 15:49:23 UTC, Junichi Nakata wrote: >>> Hi, all. >>> I have a question. >>> When 'testdic' file does' t exist, something wrong. >>> >>> --- >>> import std.mmFile; >>> >>> int main() { >>> auto x = new MmFile("testdic",MmFile.Mode.readWrite,0,null); >>> return 0; >>> } >>> >>> --- >>> OSX 10.10.3 , >>> DMD64 D Compiler v2.069-devel-d0327d9 >>> >>> After testdic file (size=0) was made, Segmentation Fault: 11 . >>> >>> I don't know whether this code is typical use. >>> Is this Phobos BUG? or BY DESIGN? >> >> Note that mmap-ing a zero-length range is invalid on Linux. Dunno about OSX; it shouldn't segfault though. > > From OS X 10.10.3 manage on mmap: ERRORS ... [EINVAL] The len argument was negative. append to https://issues.dlang.org/show_bug.cgi?id=14968 thanks. |
September 01, 2015 Re: MmFile : Is this std.mmFile BUG? | ||||
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Posted in reply to Alex Parrill | On Wednesday, 26 August 2015 at 17:30:29 UTC, Alex Parrill wrote: > it shouldn't segfault though. The segfault is because of: https://issues.dlang.org/show_bug.cgi?id=14993 It "should've" been an InvalidMemoryOperationError, which in turn was caused by: https://issues.dlang.org/show_bug.cgi?id=14994 https://issues.dlang.org/show_bug.cgi?id=14995 |
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