[linux-lvm] lvm snapshot fails

[Daniel Sully]

I'm attempting to create a snapshot volume for a 50GB partition, however
the lvcreate fails with the following error:

$ lvcreate -L1G -s -n wwwsnap /dev/vg00/www
lvcreate -- WARNING: the snapshot will be automatically disabled once it gets full
lvcreate -- INFO: using default snapshot chunk size of 64.00 KB for "/dev/vg00/wwwsnap"
File size limit exceeded

strace shows it's getting a EFBIG error -

open("/dev/sdc1", O_WRONLY)             = 4
_llseek(4, 214756169728, [214756169728], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 512) = -1 EFBIG (File too large)
--- SIGXFSZ (File size limit exceeded) ---
+++ killed by SIGXFSZ +++

This is with 2.4.17, patched with 1.0.1 and 1.0.1 userland tools.

Here's my pvscan:

pvscan -- reading all physical volumes (this may take a while...)
pvscan -- ACTIVE   PV "/dev/sdc1" of VG "vg00" [457.98 GB / 257.98 GB free]
pvscan -- total: 1 [457.99 GB] / in use: 1 [457.99 GB] / in no VG: 0 [0]

Is there a special 64bit flag I need to set somewhere to allow the
lvmtools to deal with a device that large?

-D
--
When Hell freezes over, I'll snowboard there too.