Re: Very Large File Splatter

2013/2/22 Brian Smither <bhsmither@gmail.com> > PHP 5.4.4-TS-VC9 on Windows XP SP3 NTFS non-system drive with 18GB free. > > I dare not try to replicate this. As such, I cannot firmly place the blame > on PHP. > > I have peppered a PHP application with a call to a function which > appends-only to a logfile the parameters passed to it. Each pass of the > application creates many MB of content. > > It is conceivable that I ran out of hard drive space. > > When that which what I was working on seemed to be acting very weird, I > rebooted the computer only to see thousands of lines scroll by from Windows > repairing the file system. > > I discovered logfile contents in many dozens of files. The timestamp and > filesize of the damaged files were not changed. Only the contents replaced > with slices of the logfile. > > Again, I'm not going to try to 'intentionally' replicate this, so I ask: > > Has PHP's interface with the NTFS file sub-system ever been reported to > splatter a file across the contents of a drive? > Is the PHP-interpreter even possible to create something like this? As far as I know PHP utilizes the common OS-syscalls to interact with the filesystem, so it doesn't interact with the harddrive directly, but online with the FS-driver. Did you shutdown the system cleanly, when you recognized this behaviour? If not, it would explain, that the windows assumes the filesystem must be repaired. I can imagine, that this "repair process" associated the broken data with the wrong file-entries in the fs-table, which could be an explanation for the behaviour you described. Regards, Sebastian > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- github.com/KingCrunch