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Bug#: 257738
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Status: RESOLVED
Resolution: FIXED
Assigned To: Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel@gentoo.org>
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Reporter: Gerhard Hintermayer <g.hintermayer@inode.at>
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Bug 257738 depends on: Show dependency tree
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Description:   Opened: 2009-02-05 07:30 0000 
a change in kernel version 2.6.27-r5 (i think) in the journaling daemon creates
disk activity on a otherwise idle disk (i.e. mounted ext3 fs with no activity).
so the unused disk never goes idle. going back to latest stable
gentoo-sources-2.6.24-r4 to let the disk spin down again. 

Reproducible: Always

Steps to Reproduce:
1. mount a disk with options noatime,commit=<high value>, filesystem ext3
2. set idle timer on above disk with hdparm -S ..
3. create activity on another disk with journaling file system

Actual Results:  
disk in step 1 never spins down

Expected Results:  
disk in step 1 should spin down

see kernel bug 12224 at http://bugzilla.kernel.org/show_bug.cgi?id=12224


there's already a patch, which should be ported to gentoo.

------- Comment #1 From Mike Pagano 2009-02-22 00:20:26 0000 ------- 
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=02ac597c9b86af49b2016aa98aee20ab59dbf0d2
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=8fe4cd0dc5ea43760c59eb256404188272cc95dd

------- Comment #2 From Mike Pagano 2009-03-08 11:31:55 0000 ------- 
Released in gentoo-sources-2.6.28-r3
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