<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> David Stephens wrote: <blockquote cite="mid:9ffb61520911051008s4960b292pbe5817f6782630b1@mail.gmail.com" type="cite">Thankfully I haven't encountered this problem, but I haven't tried saving any large files. After following these posts I am planning to revert back to ext3. <br> <br> <br> <br> <div class="gmail_quote">On Thu, Nov 5, 2009 at 1:02 PM, Tommy Hjalmarsson <span dir="ltr"><<a moz-do-not-send="true" href="mailto:tommy.h@bredband.net">tommy.h@bredband.net</a>></span> wrote:<br> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div bgcolor="#ffffff" text="#000000"> <div> <div class="h5">Robin Darlington wrote: <blockquote type="cite">Ok I have had a quick look at that bug and I have a few questions. <div><br> <div>First of all I am running <span style="font-family: Verdana,sans-serif;">2.6.31-rt kernel and the bug is said to affect </span><span style="font-family: Verdana,sans-serif;">2.6.32-rc1 and above is it still possible that it may be the same bug?</span><br> <br> </div> <div>How can I fix it? Should I reinstall with ext3 filesystem? will ext3 perform as well as ext4 for Audio  ?</div> <div><br> </div> <div>Thanks,<br> Robin</div> <div><br> <div class="gmail_quote">2009/11/5 Tommy Hjalmarsson <span dir="ltr"><<a moz-do-not-send="true" href="mailto:tommy.h@bredband.net" target="_blank">tommy.h@bredband.net</a>></span><br> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div bgcolor="#ffffff" text="#000000"> <div> <div>Robin Darlington wrote: <blockquote type="cite">Hi everyone, <div>I am running a fresh install of Ubuntu Studio Karmic and I have now experienced filesystem errors twice.</div> <div>The first time I put my computer to sleep and upon waking up it would not accept my password (not due to keyboard layout : i checked by typing it in username field) so I restarted and then  I had to run fsck manually to fix the Filesystem errors. The seccond time I was trying to install some software in the terminal via sudo apt-get and the sudo was just getting ignored. So i restarted and once again had to run fsck in order for my system to boot. I installed with a ext4 filesystem.</div> <div><br> </div> <div>Does anyone have any ideas what is going on here? and how to fix it?</div> <div>Has this happened to anybody else? Could it be to do with the fact that I am using to <a moz-do-not-send="true" href="http://ubuntu-tweak.com/" target="_blank">tweak ubuntu</a>  to install third party software (Opera, VirtualBox, Code Blocks etc.) ?</div> <div><br> </div> <div>Thank you for your time,</div> <div>Robin</div> </blockquote> </div> </div> Here is a bugg comment:<br> <span><i>Comment <a moz-do-not-send="true" name="124c5834eaa6e31f_124c54f60579b301_c6" href="http://bugzilla.kernel.org/show_bug.cgi?id=14354#c6" target="_blank">#6</a> From <span> <a moz-do-not-send="true" href="mailto:bug-track@fisher-privat.net" target="_blank">Alexey Fisher</a> </span> 2009-10-10 16:48:58</i> <span>-------</span> </span> <pre>Ok, i think i know now how it's happed. I nneded some time to play to reproduce it. There is _no_difference_ if you just boot 2.6.32 kernel run fsck and then boot 2.6.31 kernel and run fsck again - nothing will happen. here is the way i reproduced it: 1. crash (reset or poweroff) 2.6.32-rc3 kernel, 2. start again in 2.6.32-rc3 3. run fsck it well looks clean.. but some progrums will lost it setting. 4. reboot and start with 2.6.31 kernel 5. run fsck and this will find that ext4 is brocken. 6. after fsck fix it.. many fils will be lost. >From the website: <a moz-do-not-send="true" href="http://bugzilla.kernel.org/show_bug.cgi?id=14354" target="_blank">http://bugzilla.kernel.org/show_bug.cgi?id=14354</a> </pre> <br> </div> <br> --<br> Ubuntu-Studio-users mailing list<br> <a moz-do-not-send="true" href="mailto:Ubuntu-Studio-users@lists.ubuntu.com" target="_blank">Ubuntu-Studio-users@lists.ubuntu.com</a><br> Modify settings or unsubscribe at: <a moz-do-not-send="true" href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users</a><br> <br> </blockquote> </div> <br> </div> </div> </blockquote> </div> </div> I don't think it's a big difference between ext3 and ext4 in audio performance, but it's only my guess.<br> <br> And more rapport about Ext4 problem in Ubuntu 9.10 are coming in.<br> <br> <h2>Possible corruption of large files with ext4 filesystem</h2> <span></span><span></span> There have been some reports of data corruption with fresh (not upgraded) ext4 file systems using the Ubuntu 9.10 kernel when writing to large files (over 512MB). The issue is under investigation, and if confirmed will be resolved in a post-release update. Users who routinely manipulate large files may want to consider using ext3 file systems until this issue is resolved. (<a moz-do-not-send="true" title="Bug" href="https://bugs.launchpad.net/bugs/453579" target="_blank">453579</a>) <br> <br> >From the website:<br> <a moz-do-not-send="true" href="http://www.ubuntu.com/getubuntu/releasenotes/910" target="_blank">http://www.ubuntu.com/getubuntu/releasenotes/910</a><br> <br> I had this problem my self.<br> <br> </div> <br> --<br> Ubuntu-Studio-users mailing list<br> <a moz-do-not-send="true" href="mailto:Ubuntu-Studio-users@lists.ubuntu.com">Ubuntu-Studio-users@lists.ubuntu.com</a><br> Modify settings or unsubscribe at: <a moz-do-not-send="true" href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users</a><br> <br> </blockquote> </div> <br> <br clear="all"> <br> -- <br> “When you get to the end of all the light you know and it's time to step into the darkness of the unknown, faith is knowing that one of two things shall happen: either you will be given something solid to stand on, or you will be taught how to fly.” -- Dr. Edward Teller<br> </blockquote> Better to be safe than sorry:)<br> </body> </html>