I suffer the same problem on my machine. Sometimes the system won't umount / before reboot/halt, Rarely the system freezes after a short period of time after resume from suspend-to-ram, Rarely the system freezes, period. In *any* case, I loose a bunch of data. Often this data is moved to /lost+found (between 250Mb and 1Gb of data) after an extremely long manual fsck (often many manual passes are needed for the FS to be totally clean), I must reinstall from backups.
Distro : Ubuntu Dapper, up-to-date. this problem has been happening regularly since i installed my first Dapper (Flight2). On Breezy it was very occasionnal (happened 2 or 3 times "only"). HW: IBM Thinkpad T40p (this has happened on IBM X31 too when i owned it), PATA Samsung 120Gb drive (this has happened with 40 and 80Gb samsung drives on both machines). Memory should be out of cause (memtest OK on obth machines), disks *could* be (smartctl tests ran without any problems, no SMART errors logged on any drives). ** Changed in: linux-source-2.6.15 (Ubuntu) Status: Unconfirmed => Confirmed -- ext3 partitions are getting corrupt more often than they should https://launchpad.net/bugs/53102 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs