We're using the same systems with the same OS (well okay, actually CentOS 4) and aren't seeing the same thing. 2.6.14.3 #1 SMP PREEMPT Thu Dec 8 10:34:08 PST 2005 i686 i686 i386 GNU/Linux ..Chuck.. > -----Original Message----- > From: tweeks [mailto:tweeks@xxxxxxxxxxxxx] > Sent: Tuesday, September 05, 2006 1:54 PM > To: ext3-users@xxxxxxxxxx > Subject: IO lockups and ext3 readonly filecorruption on RHEL4 > (pre and postU4) > > Has anyone been seeing IO lockup problems on EL4? > > I've tried multiple IO scheduler options (elevator=) in the > boot... I'm seeing the same behavior regardless. Independent > of hardware. Whitebox ATA, HA enclosure with dedicated SCSI, > megaraid RAID hardware, Dell 2850s... same > behavior: > > A semi-busy system will suddenly go into some kind of IO > la-la land where nothing can be written to disk for >1hour. > Of course when this happens, the > ext3 kernel module freaks out and remounts all the > filesystems as readonly. > Then when the system is rebooted, if the system is allowed to > fsck, the journal is hosed and the filesystem eats itself. > Moving them off the RH kernel all together seems to fix the > problem, but I have not found a way to reproduce the problem > yet (burning and stress testing doesn't seem to make it > appear), so real re-testing is difficult at best. > > It's become so big of a problem that we're moving some > customers that require rock solid systems either over to > RHEL3, or off RH and over to SLES or other distro with a > non-RH kernel. > > Just the ext3 problem (minus the IO lockup part) can be seen > in other BZ > tickets: > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=175877 > (when the filesystem fills up) > > Has anyone seen these type of IO lockups + ext3 corruption on RHEL4? > Can you reproduce it? > > Tweeks > > _______________________________________________ > Ext3-users mailing list > Ext3-users@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/ext3-users > _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
