On 4 Mar 2013 at 13:21, Ian Malone wrote: Date sent: Mon, 4 Mar 2013 13:21:03 +0000 Subject: Re: fedora 16, ext4 corruption From: Ian Malone <ibmalone@xxxxxxxxx> To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx> > On 22 January 2013 11:08, Ian Malone <ibmalone@xxxxxxxxx> wrote: > > Hi, > > > > Is anyone else seeing problems with F16 ext4? I recently moved my > > install onto a new harddisc (which is reporting SMART is fine after > > running a full test) and did that by making a new ext4 fs > > (previously ext3) then rsyncing across. I'm now seeing occasional > > system 'freezes' (not hard freezes, but programs can fail to start > > or freeze. Yesterday the desktop completely stopped, but I was able > > to switch to a virtual console). dmesg reports errors to do with > > failing to write the journal and remounting read-only. On reboot an > > fsck is required, which finds some fixable problems. Obviously I'm > > wondering if it's the OS or the new disc. Was planning an F18 > > install soon which might help with one problem but not the other. > > Don't know if it's the 'ext4 data corruption bug' or if that's been > > fixed. http://www.phoronix.com/scan.php?page=news_item&px=MTIxNDQ > > > > After a clean install of F18 I'm still having problems, though the > symptoms are different. dmesg shows "READ FPDMA QUEUED" and "skipping > hard reset" type errors. When this happens the entire desktop pauses > for a while then recovers. The exact behaviour seems to have changed > through the course of a number of kernel updates (most notably the > system seems to recover stably after it happens now). It's either a > hardware problem (though I've tried changing cables and the hard-disc > mounting, port was working with the previous drive) or a kernel one > (possibly buggy disc NCQ implementation needs workaround). Will file a > bug, but thought I should follow up here. > > -- Don't know if it is a similar problem, but I had a Fedora 16 machine that would find no smartctl error on a full scan, but was getting lots of smartctl error counts. Replaced the disk and was still getting the errors. Took the old disk, and put it in another system no new problems. Took the new disk, and same no problems. Finally put a PCI sata controller in the machine, and hooked the disk to it, and no more errors. I am assuming it is a problem with the onboard controller, but not clear what or why there is not other error than the smartctl. smartctl -a /dev/sda | grep "ATA Error Count" The count got up to 2108, but since changing controller card has not reported any issues and number remains the same. > imalone > http://ibmalone.blogspot.co.uk > -- > users mailing list > users@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe or change subscription options: > https://admin.fedoraproject.org/mailman/listinfo/users > Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have > a question? Ask away: http://ask.fedoraproject.org +----------------------------------------------------------+ Michael D. Setzer II - Computer Science Instructor Guam Community College Computer Center mailto:mikes@xxxxxxxxxxxxxxxx mailto:msetzerii@xxxxxxxxx http://www.guam.net/home/mikes Guam - Where America's Day Begins G4L Disk Imaging Project maintainer http://sourceforge.net/projects/g4l/ +----------------------------------------------------------+ http://setiathome.berkeley.edu (Original) Number of Seti Units Returned: 19,471 Processing time: 32 years, 290 days, 12 hours, 58 minutes (Total Hours: 287,489) BOINC@HOME CREDITS SETI 14037786.926241 | EINSTEIN 10213341.419852 ROSETTA 6334215.936318 | ABC 15897563.521593 -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
