Yes, that machine has a 64bit processor and a 64 bit kernel. Here's the uname -a output:
Linux frodo 3.10-2-amd64 #1 SMP Debian 3.10.7-1 (2013-08-17) x86_64 GNU/Linux 2013/9/9 Kevin Brightwell <[email protected]> > First question, might be stupid, but are you compiling in 64-bit? 32-bit > will definitely crash, and unreliably do so. > > Second, in a bit of PD, I think this might have something to do with it: > > private: > std::ifstream m_file; > std::string m_current_line; ///< Buffer the image pixels > const char * m_pos; > unsigned int m_pnm_type, m_max_val; // shouldn't this be long? > > bool read_file_scanline (void * data); > bool read_file_header (); > }; > > > and this shows up here: > > Line 267: > if (m_max_val > std::numeric_limits<unsigned char>::max()) > raw_to_raw ((unsigned short *)&buf[0], (unsigned short *) > data, > nsamples, (unsigned short)m_max_val); > else > raw_to_raw ((unsigned char *)&buf[0], (unsigned char *) > data, > nsamples, (unsigned char)m_max_val); // > casting to a char? > break; > > Lots of places show up that could cause problems with massive file sizes. > I'm no expert. > > Kevin > > > On Mon, Sep 9, 2013 at 11:16 AM, Ramiro Pereira de Magalhães < > [email protected]> wrote: > >> Hi, >> >> I have just learned about OIIO and I wrote a simple program with >> OpenImageIO to load a 10GB PGM file into memory. To try things out I wrote >> a simple program to load a 10GB PGM (yeah, PGM) file into memory. Sadly, >> the program crashes prior to completing its task with a Segmentation Fault. >> The machine where this is running has 64GB RAM, most of it free. Can anyone >> help me figure out this issue? >> >> Bellow is the program I wrote. It is pretty simple: load the image given >> as argument to it into a buffer, then close the file, clean the buffers and >> leave. >> >> ================CODE================ >> #include <iostream> >> #include <string> >> #include <sstream> >> #include <OpenImageIO/imageio.h> >> >> OIIO_NAMESPACE_USING >> >> int main(int argc, char* args[]) >> { >> if (argc != 2) >> { >> return 1; >> } >> const std::string filePath = args[1]; >> >> ImageInput *in = ImageInput::open (filePath); >> const ImageSpec & spec = in->spec(); >> const int size = spec.width * spec.height; >> >> unsigned char * pixels = new unsigned char[size]; >> in->read_image(TypeDesc::UCHAR, pixels); >> std::cout << "Done reading." << std::endl; >> in->close(); >> std::cout << "Closed file." << std::endl; >> >> delete in; >> delete pixels; >> >> std::cout << "Outta here." << std::endl; >> return 0; >> } >> ================CODE================ >> >> >> Segfault happens at line 173 of onminput.cpp. Here is the call stack >> given by Qt Builder: >> >> 0 OpenImageIO::v1_3::raw_to_raw<unsigned char> pnminput.cpp >> 173 0x7ffff798c1e6 >> 1 OpenImageIO::v1_3::PNMInput::read_file_scanline pnminput.cpp >> 272 0x7ffff798b09c >> 2 OpenImageIO::v1_3::PNMInput::read_native_scanline pnminput.cpp >> 385 0x7ffff798b91e >> 3 OpenImageIO::v1_3::ImageInput::read_native_scanlines >> imageinput.cpp 260 0x7ffff76d9280 >> 4 OpenImageIO::v1_3::ImageInput::read_scanlines imageinput.cpp >> 197 0x7ffff76d8c24 >> 5 OpenImageIO::v1_3::ImageInput::read_scanlines imageinput.cpp >> 165 0x7ffff76d8977 >> 6 OpenImageIO::v1_3::ImageInput::read_image imageinput.cpp >> 631 0x7ffff76db3c8 >> 7 main show.cpp 31 0x4012b7 >> >> >> I compiled OIIO from the git commit >> d64b9ac8a63261040ae0263b0709924d8fecf4df (Tue Sep 3 12:53:12 2013 -0700). >> >> I appreciate any help. >> >> _______________________________________________ >> Oiio-dev mailing list >> [email protected] >> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org >> >> > > > -- > Kevin Brightwell > *BESc. and BSc. Candidate 2015* > Western University www.westernu.ca <http://www.uwo.ca> > e. [email protected] c. 226.678.4927 > > _______________________________________________ > Oiio-dev mailing list > [email protected] > http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org > >
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