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SubjectRe: Dirtiable inode bdi default != sb bdi btrfs
On 2010-09-23 21:38, Andrew Morton wrote:
>
> (Cc stable@kernel.org)
>
> On Wed, 22 Sep 2010 21:54:30 -0300
> Cesar Eduardo Barros <cesarb@cesarb.net> wrote:
>
>> This started appearing for me on v2.6.36-rc5-49-gc79bd89; it did not
>> happen on v2.6.36-rc5-33-g1ce1e41, probably because it does not have
>> commit 692ebd17c2905313fff3c504c249c6a0faad16ec which introduces the
>> warning.
>>
>> [...]
>> device fsid 44d595920ddedfa-3ece6b56e80f689e devid 1 transid 22342
>> /dev/mapper/vg_cesarbinspiro-lv_home
>> SELinux: initialized (dev dm-3, type btrfs), uses xattr
>> ------------[ cut here ]------------
>> WARNING: at fs/fs-writeback.c:87 inode_to_bdi+0x62/0x6d()
>> Hardware name: Inspiron N4010
>> Dirtiable inode bdi default != sb bdi btrfs
>> Modules linked in: ipv6 kvm_intel kvm uinput arc4 ecb
>> snd_hda_codec_intelhdmi snd_hda_codec_realtek iwlagn snd_hda_intel
>> iwlcore snd_hda_codec uvcvideo snd_hwdep mac80211 videodev snd_seq
>> snd_seq_device v4l1_compat snd_pcm atl1c v4l2_compat_ioctl32 btusb
>> cfg80211 snd_timer i2c_i801 bluetooth iTCO_wdt dell_wmi dell_laptop snd
>> pcspkr wmi dcdbas shpchp iTCO_vendor_support soundcore snd_page_alloc
>> rfkill joydev microcode btrfs zlib_deflate libcrc32c cryptd aes_x86_64
>> aes_generic xts gf128mul dm_crypt usb_storage i915 drm_kms_helper drm
>> i2c_algo_bit i2c_core video output [last unloaded: scsi_wait_scan]
>> Pid: 1073, comm: find Not tainted 2.6.36-rc5+ #8
>> Call Trace:
>> [<ffffffff8104d0e4>] warn_slowpath_common+0x85/0x9d
>> [<ffffffff8104d19f>] warn_slowpath_fmt+0x46/0x48
>> [<ffffffff811308b7>] inode_to_bdi+0x62/0x6d
>> [<ffffffff81131b48>] __mark_inode_dirty+0xd0/0x177
>> [<ffffffff81127168>] touch_atime+0x107/0x12a
>> [<ffffffff81122384>] ? filldir+0x0/0xd0
>> [<ffffffff8112259b>] vfs_readdir+0x8d/0xb4
>> [<ffffffff8112270b>] sys_getdents+0x81/0xd1
>> [<ffffffff81009c72>] system_call_fastpath+0x16/0x1b
>
> Thanks. 692ebd17c2905313fff3c504c249c6a0faad16ec had a cc:stable in
> the changelog. I'd suggest it not be merged into -stable until this
> regression is sorted out!

It was just added, I'm discussing this with Chris on irc as I type this.
But yes, lets not replace a regression with a new regression :-). So
Greg, please hold off on these for a little while.

--
Jens Axboe



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