Messages in this thread | | | Date | Wed, 22 Sep 2010 21:54:30 -0300 | From | Cesar Eduardo Barros <> | Subject | Dirtiable inode bdi default != sb bdi btrfs |
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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 ---[ end trace 8907b335812c497b ]--- ------------[ 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 Tainted: G W 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 ---[ end trace 8907b335812c497c ]--- [...]
These are only the first two; they keep happening, with several different processes (it is not only find), but always btrfs (I have / and /home on btrfs and /boot on ext4). In case it makes any difference, /dev seems to be on devtmpfs, and everything uses relatime.
There is also the following one which is not on vfs_readdir:
------------[ 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: 1104, comm: mkdir Tainted: G W 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 [<ffffffffa01408c6>] btrfs_setattr+0x210/0x23a [btrfs] [<ffffffff8112865e>] notify_change+0x1a2/0x29d [<ffffffff81113794>] sys_fchmod+0xac/0xfd [<ffffffff811188e2>] ? sys_newfstat+0x2e/0x39 [<ffffffff81009c72>] system_call_fastpath+0x16/0x1b ---[ end trace 8907b335812c498d ]---
-- Cesar Eduardo Barros cesarb@cesarb.net cesar.barros@gmail.com
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