Bug 241880 – sys-kernel/gentoo-sources-2.6.27: XFS Barrier support broken

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Toei Rei 2008-10-14 07:16:07 UTC]

dmesg shows a message like that:

Filesystem "hda3": xlog_iodone: Barriers are no longer supported by device. Disabling barriers



Reproducible: Always

Steps to Reproduce:
1. format a partition with the XFS Filesystem
2. boot a 2.6.27 kernel
3. dmesg

Actual Results:  
Bug already reported to the xfs team


function xlog_iodone broken. 

If a buffer gets the XBF_ORDERED flag cleared, they assume that barriers are not supported. But this can be the case not only for buffers where the barrier failed, but also the first buffer of a split log write in case of a log wraparound.

[Comment 1 Toei Rei 2008-10-14 07:17:42 UTC]

Created attachment 168362 [details, diff]
Fix Barrier Fail Detection Patch

This is the patch from the xfs team

[Comment 2 Wormo (RETIRED) 2008-10-15 06:18:43 UTC]

Thanks for reporting this bug and its upstream patch -- assigning to maintainers.

[Comment 3 Toei Rei 2008-10-15 11:57:13 UTC]

Regarding the git-log on kernel.org, the patch is already included as commit 73f6aa4d44ab6157badc456ddfa05b31e58de5f0

See http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.27-git1.log

[Comment 4 Mike Pagano 2008-10-16 17:29:15 UTC]

By the time I do a gentoo-sources-2.6.27-r1, this patch will probably be included from mainline.

I will keep this open in the event I do a new release and it's not in there. But it's highly unlikely, IMO.

[Comment 5 Toei Rei 2008-10-17 06:11:07 UTC]

Just for your info: 2.6.27.1 was released, having just that e1000 patch. So I guess it will take some more time.

[Comment 6 Mike Pagano 2008-10-23 15:23:49 UTC]

Now included in gentoo-sources-2.6.27-r1