On Monday 19 March 2007, James Bottomley wrote: >On Mon, 2007-03-19 at 17:47 -0400, Gene Heskett wrote: >> James, could this also be the cause of a tar based backup going crazy >> and thinking all data is new under any 2.6.21-rc* kernel I've tested >> so far with amanda, which in my case uses tar? I've tried the fedora >> patched tar-1.15-1, and one I hand built right after 1.15-1 came out >> over a year ago, and they both do it, but only when booted to a >> 2.6.21-rc* kernel. >> >> This obviously will be a show-stopper, either for amanda (and by >> inference, any app that uses tar), or for the migration of an amanda >> users machinery to a 2.6.21 kernel. > >Er, I don't think so .. that sounds like mtime miscompare, which is >either a problem with the filesystem or a problem with the way mtime is >stored in the tar archive. > >James Well, since the times reported by ls -l --full-time are sane [root@coyote pix]# ls -l --full-time total 924784 -rw-r--r-- 1 root root 985324 2002-06-09 18:14:54.000000000 -0400 0203.jpg [... the rest of a 100k listing, booted to 2.6.20.3-rdsl-0.31] And: [root@coyote pix]# ls -l --full-time total 924784 -rw-r--r-- 1 root root 985324 2002-06-09 18:14:54.000000000 -0400 0203.jpg booted to 2.6.21-rc4 allthough the fractional second is a string of .000000000, even when booted to a tar-unfriendly kernel, then it would tend to point at tar, but two differently built versions of tar have been confirmed as miss-behaving in the presence of a kernel in the 2.6.21 series so far, all of them. I'm going to reboot twice more tonight, once to verify that the output of an ls -l --full-time is as I said above, I'll save this and do that again and clip it in after a reboot to 2.6.21-rc4, and once to 2.6.20.4-rc1 to see if by chance one of those patches is the guilty party. I'll leave the latter running tonight for the amanda run & see what falls out. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Try to relax and enjoy the crisis. -- Ashleigh Brilliant - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
