Hi, this is one of the 'I really had a bug' problems. I don't know what I have done, but md5sum works know. I swear that I had this problem and that it was reproducable. I will give you any feedback if I know more.
thanks for fast help Daniel Am Samstag, 15. Juli 2006 17:58 schrieb Philip Rowlands: > On Sat, 15 Jul 2006, Daniel wrote: > > If I run md5sum on big files (>700MB) it freezes the system. There are > > no logs, no panic, nothing. It only shows the last screen. > > This will be difficult to diagnose if the problem occurs only on your > system. Are you able to reproduce it on another computer? > > When you say freeze, is the computer entirely unresponsive? Can you > interrupt (Ctrl-C) md5sum to get back to the shell prompt? > > 700MB is a reasonably large amount of data, which might longer than > you'd expect to process on an older system, say, with slow disk. > > > I runned md5sum with strace and gdb because I want to know what > > happens - but everything was fine and md5sum returns the hash. > > Although I don't expect this is an md5sum bug, I'll need to convince you > of that. Is 700MB the smallest file that breaks? Is it any 700MB file, > or a specific one on your disk? The following commands may help narrow > down the cause: > > (I'm going to name the problematic 700MB file "badfile") > $ cat badfile > /dev/null > (should return to the prompt with no output) > > $ dd bs=1M count=700 if=/dev/zero | md5sum > 700+0 records in > 700+0 records out > 734003200 bytes (734 MB) copied, 3.92202 seconds, 187 MB/s > 7fe5ca2a051d6dbb9ef191fbee0af98c - > (tests md5sum handling 700MB of non-disk data) > > $ dd bs=1M count=700 if/dev/zero > /tmp/bigfile > $ md5sum /tmp/bigfile badfile > > > So, can anyone of you explain this behavior? What happens there? Why > > is md5sum running fine if it is under control? Are there ways to get > > some more informations? > > The above tests should isolate whether it's md5sum or the specific file > which triggers your problem. > > > PS: it is _no_ hardware defect ;) > > How can you be sure? > > > Cheers, > Phil > > > _______________________________________________ > Bug-coreutils mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/bug-coreutils _______________________________________________ Bug-coreutils mailing list [email protected] http://lists.gnu.org/mailman/listinfo/bug-coreutils
