Messages in this thread | | | Date | Sat, 5 Jun 1999 13:29:23 +0200 | From | Pavel Machek <> | Subject | Re: files >4gig -- 2.2.9 is corrupting disk! |
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Hi!
> So I created a 17 gig file using Linux 2.2.9 & a file in /tmp. Interestingly > enough at 17 gig I get an error 22 ( still have space & inodes > available ) .
Reproduced on my 2.2.9/i386. Program does something different than it claims to (due to limited ranges of ints etc), but causes corruption. When I did ls -l c after run I saw rwx-----T or something this crazy. I tried it twice, worked both times.
If you don't want to trash your harddisk, be sure to sync; killall bdflush; sync; run test; look what it caused and then _POWER OFF WITHOUT SYNCING_.
> #include <stdio.h> > #include <errno.h> > #include <fcntl.h> > #include <unistd.h> > /******************** BE CAREFULL ******************************/ > /* This can kill the superblock on the partition the file is written on */ > /* Which may not be recoverable gat 6/5/99 */ > /******************** BE CAREFULL *******************************/ > > main() > { > long l,r; > int e, w; > int fd; > fd = open("c",O_RDWR|O_CREAT|O_TRUNC); > > for ( l=0; l < 64000000000L; l+=1000000) { > r = lseek(fd, l, 0); > w = write(fd,"a",1); > fprintf(stderr,"r=%lx, w=%d, l=%ld\n", r,w,l); > } > }
-- I'm really pavel@ucw.cz. Look at http://195.113.31.123/~pavel. Pavel Hi! I'm a .signature virus! Copy me into your ~/.signature, please!
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