From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleg Drokin Subject: Re: Crashes with corruption of disk data Date: Sun, 21 Jul 2002 22:26:35 +0400 Message-ID: <20020721222635.A22526@namesys.com> References: <20020721001030.GM229@hvs.envisage.co.za> Mime-Version: 1.0 Return-path: list-help: list-unsubscribe: list-post: Content-Disposition: inline In-Reply-To: <20020721001030.GM229@hvs.envisage.co.za> List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Hendrik Visage Cc: reiserfs-list@namesys.com Hello! This is a know issue. If you muck with FS data of mounted reiserfs filesystem, not using reiserfs in-kernel driver, you are asking for trouble. Bye, Oleg On Sun, Jul 21, 2002 at 02:10:30AM +0200, Hendrik Visage wrote: > > Hi there, > > I've came upon a crash situation (quite repeatable) with reiserfs, > but NOT with ext2/3. > > Using Vanilla 2.4.17 + XFS + EVMS-1.1.0-rc4 > > (1) using evmsn I created a logical volume, mkfs'd it, and > mounted it. FS used was ext3 & reiserfs > > (2) went into evmsn again & destroyed[b] the volume with a > unmkfs[a] > > (3) forced exited evmsn > > (4) tried to access the "still" mounted fs & umount it > > At this point, ext2/3 would let go of the mounted FS, > however, reiserfs consistently crashed into the SGI/XFS > Kernel debugger :( > > I'm of believe that this would be seen as a non check of the > validity of the underlying diskdata. I believe this test could > be repeated with a dd if=/dev/zero of=/dev/mounted/reiser but haven't > yet done so (sleep time), but would be able to report or help with > finding the errors if it is seen as a bug, as I haven't seen documentation > to the contrary. > > Greetz > Hendrik > > Notes > [a] because a miss assumption which are being fixed, this was > wrongly executed, but the "issue" still hold :( > [b] it weren't actually destroyed, though the unmks were run, > as the kernel wouldn't let go of a mounted volume, thus the > forced in (3)