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Date: Tue, 18 Oct 2011 10:11:59 +0200 From: Gábor Lénárt <lgb@....hu> To: linux-kernel@...r.kernel.org Subject: barrier-based sync failed - disabling barriers Hi All, I have a kernel log entry I've never seen before: JBD: barrier-based sync failed on cciss!c0d0p3-8 - disabling barriers JBD: barrier-based sync failed on cciss!c0d0p1-8 - disabling barriers Should I worry? Can it be blamed for the poor I/O performance? How can I solve this problem? Even if it doesn't mean too much (what I should worry about), it's a bit annoying (as always) to see odd messages. The ext4 filesystems were created by the installer of an older (ubuntu) distribution, I guess, it can cause problems after the upgrade. Can I convert/modify the filesystem (like with tune2fs) not to have these messages and problem? Thanks a lot in advance for anyone who has some suggestion. Regards, Gábor Lénárt -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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