Re: bug with diff 2.8.1

[jdeifik]

Does your machine have 2gb or less physical memory?
I suspect it might matter.

I don't have access to that machine right now.
I do have the directory tree(s) that causes the problem.
I believe that diff dies on tree1/dev/sda1/11 or 12.
You will need two copies of the tree of course.

Here it is:

tree1:
total 12
   4 drwxr-xr-x    3 root     root         4096 Jun  5 13:58 .
   4 drwxr-xr-x    6 root     root         4096 Jun  5 15:52 ..
   4 drwxr-xr-x    6 root     root         4096 Jun  5 14:08 dev

tree1/dev:
total 24
   4 drwxr-xr-x    6 root     root         4096 Jun  5 14:08 .
   4 drwxr-xr-x    3 root     root         4096 Jun  5 13:58 ..
   4 drwxr-xr-x    2 root     root         4096 Jun  5 13:58 hdd1
   4 drwxr-xr-x    2 root     root         4096 Jun  5 13:58 hdd2
   4 drwxr-xr-x    2 root     root         4096 Jun  5 14:03 hdd3
   4 drwxr-xr-x    2 root     root         4096 Jun  5 15:50 sda1

tree1/dev/hdd1:
total 8024
   4 drwxr-xr-x    2 root     root         4096 Jun  5 13:58 .
   4 drwxr-xr-x    6 root     root         4096 Jun  5 14:08 ..
8016 -rw-r--r--    1 root     root      8193024 Jun  5 13:58 1

tree1/dev/hdd2:
total 997020
     4 drwxr-xr-x    2 root     root         4096 Jun  5 13:58 .
     4 drwxr-xr-x    6 root     root         4096 Jun  5 14:08 ..
997012 -rw-r--r--    1 root     root     1019934720 Jun  5 14:03 1

tree1/dev/hdd3:
total 997020
     4 drwxr-xr-x    2 root     root         4096 Jun  5 14:03 .
     4 drwxr-xr-x    6 root     root         4096 Jun  5 14:08 ..
997012 -rw-r--r--    1 root     root     1019934720 Jun  5 14:08 1

tree1/dev/sda1:
total 48740696
      4 drwxr-xr-x    2 root     root         4096 Jun  5 15:50 .
      4 drwxr-xr-x    6 root     root         4096 Jun  5 14:08 ..
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:09 1
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:21 10
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:23 11
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:24 12
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:25 13
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:27 14
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:28 15
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:29 16
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:31 17
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:32 18
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:33 19
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:10 2
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:35 20
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:36 21
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:38 22
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:39 23
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:40 24
 770540 -rw-r--r--    1 root     root     788258304 Jun  5 14:41 25
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:12 3
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:13 4
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:14 5
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:16 6
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:17 7
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:19 8
1998756 -rw-r--r--    1 root     root     2044723200 Jun  5 14:20 9

thanks,
jeff deifik

---- Paul Eggert <address@hidden> wrote: 
> <address@hidden> writes:
> 
> > I am using diff 2.8.1 on a knoppix gnu-linux system, version 5.1.
> > I have two directory trees of files, which are 1 gigabyte chunks of output 
> > from the dd command,
> > (binary files).
> >
> > My system has 2gb of ram.
> > I issue the command ‘diff –r tree1 tree2’
> > After a while, I get an out of memory error.
> 
> I can't reproduce the problem.  Perhaps you can try the following
> scenario and see whether the problem occurs with your host.
> (I am running Debian stable, if that matters.)
> 
> 523-penguin $ mkdir d e
> 524-penguin $ dd if=/etc/motd of=d/big obs=1 seek=1GB
> 0+1 records in
> 353+0 records out
> 353 bytes (353 B) copied, 0.0174142 s, 20.3 kB/s
> 525-penguin $ dd if=/etc/motd of=e/big obs=1 seek=1GB
> 0+1 records in
> 353+0 records out
> 353 bytes (353 B) copied, 0.00102449 s, 345 kB/s
> 526-penguin $ ls -al d e
> d:
> total 20
> drwxr-xr-x  2 eggert eggert       4096 Jun  5 16:26 .
> drwxr-xr-x 12 eggert eggert       4096 Jun  5 16:25 ..
> -rw-r--r--  1 eggert eggert 1000000353 Jun  5 16:26 big
> 
> e:
> total 20
> drwxr-xr-x  2 eggert eggert       4096 Jun  5 16:26 .
> drwxr-xr-x 12 eggert eggert       4096 Jun  5 16:25 ..
> -rw-r--r--  1 eggert eggert 1000000353 Jun  5 16:26 big
> 527-penguin $ diff -r d e
> 528-penguin $