[Bug 195211] New: WARNING: CPU: 4 PID: 342 at fs/quota/dquot.c:619 dquot_writeback_dquots+0x25e/0x270

[Bug 195211] New: WARNING: CPU: 4 PID: 342 at fs/quota/dquot.c:619 dquot_writeback_dquots+0x25e/0x270

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=195211

            Bug ID: 195211
           Summary: WARNING: CPU: 4 PID: 342 at fs/quota/dquot.c:619
                    dquot_writeback_dquots+0x25e/0x270
           Product: File System
           Version: 2.5
    Kernel Version: 4.10.8
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: ReiserFS
          Assignee: reiserfs-devel@vger.kernel.org
          Reporter: edisonalvaringo@bol.com.br
        Regression: No

Since kernel 4.10 I get a trace in the reiserfs

------------[ cut here ]------------
[   30.160112] WARNING: CPU: 4 PID: 342 at fs/quota/dquot.c:619
dquot_writeback_dquots+0x25e/0x270
[   30.160113] Modules linked in: it87 hwmon_vid reiserfs fuse rtl818x_pci
mac80211 snd_hda_codec_via joydev snd_hda_codec_generic snd_hda_codec_hdmi
snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep edac_mce_amd edac_core
deadline_iosched snd_pcm kvm_amd snd_timer kvm r8169 mii snd shpchp cfg80211
eeprom_93cx6 rfkill soundcore i2c_piix4 fam15h_power k10temp irqbypass
crct10dif_pclmul crc32_pclmul crc32c_intel pcspkr ghash_clmulni_intel pcbc
acpi_cpufreq tpm_infineon aesni_intel aes_x86_64 tpm_tis crypto_simd
tpm_tis_core glue_helper fjes cryptd tpm button arc4 ppp_mppe hid_generic
usbhid sr_mod cdrom ata_generic bcache ohci_pci amdgpu pata_atiixp mfd_core
ohci_hcd ehci_pci i2c_algo_bit ehci_hcd xhci_pci xhci_hcd drm_kms_helper
syscopyarea sysfillrect sysimgblt fb_sys_fops usbcore ttm drm msr sg
ppp_generic
[   30.160179]  slhc efivarfs
[   30.160185] CPU: 4 PID: 342 Comm: kworker/4:2 Not tainted
4.10.8-ck1-5-default #1
[   30.160186] Hardware name: Gigabyte Technology Co., Ltd. To be filled by
O.E.M./970A-D3, BIOS FD 01/25/2013
[   30.160200] Workqueue: events_long flush_old_commits [reiserfs]
[   30.160202] Call Trace:
[   30.160209]  dump_stack+0x63/0x83
[   30.160213]  __warn+0xcb/0xf0
[   30.160216]  warn_slowpath_null+0x1d/0x20
[   30.160219]  dquot_writeback_dquots+0x25e/0x270
[   30.160223]  ? check_smt_siblings+0x3b/0x80
[   30.160233]  reiserfs_sync_fs+0x1b/0x60 [reiserfs]
[   30.160244]  flush_old_commits+0x47/0x50 [reiserfs]
[   30.160248]  process_one_work+0x1f3/0x4d0
[   30.160251]  worker_thread+0x48/0x4e0
[   30.160255]  kthread+0x101/0x140
[   30.160258]  ? process_one_work+0x4d0/0x4d0
[   30.160260]  ? kthread_create_on_node+0x40/0x40
[   30.160264]  ret_from_fork+0x2c/0x40
[   30.160267] ---[ end trace 4fe56fb4074365ea ]---


It's a separte partition for my tmp files
mount options

UUID=63d87b37-2a8d-4a03-9e50-01f273ac58b5  /tmp                 reiserfs  
defaults,nodev,nosuid,noexec,data=ordered  1 1


(I added data ordered to see if that helped because the message mentions
"writeback", previously there was no option on data)

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[Bug 195211] WARNING: CPU: 4 PID: 342 at fs/quota/dquot.c:619 dquot_writeback_dquots+0x25e/0x270

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=195211

--- Comment #1 from edisonalvaringo@bol.com.br ---
Apart from that. I don't notice any apparent performance problem or crashes of
any type.

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[Bug 195211] WARNING: CPU: 4 PID: 342 at fs/quota/dquot.c:619 dquot_writeback_dquots+0x25e/0x270

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=195211

Claudio Cuqui (claudio@c3systems.com.br) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |claudio@c3systems.com.br

--- Comment #2 from Claudio Cuqui (claudio@c3systems.com.br) ---
Same here. Fedora 25 kernel 4.10.13-200.fc25.x86_64. So far, no side effects,
crashes or fs corruptions noted (beside the warning):

[   18.478413] WARNING: CPU: 5 PID: 220 at fs/quota/dquot.c:619
dquot_writeback_dquots+0x25a/0x260
[   18.478414] Modules linked in: mac80211 dell_wmi sparse_keymap dell_laptop
dell_smbios intel_rapl x86_pkg_temp_thermal intel_powerclamp iwlwifi coretemp
iTCO_wdt iTCO_vendor_support kvm_intel dcdbas kvm snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec
irqbypass snd_hda_core intel_cstate snd_hwdep intel_uncore intel_rapl_perf
snd_seq snd_seq_device snd_pcm mei_me snd_timer mei snd i2c_i801 cfg80211
joydev soundcore rfkill tpm_tis tpm_tis_core lpc_ich tpm shpchp dell_smo8800
binfmt_misc reiserfs dm_crypt i915 i2c_algo_bit drm_kms_helper crct10dif_pclmul
crc32_pclmul crc32c_intel drm ghash_clmulni_intel r8169 serio_raw mii wmi fjes
video
[   18.478441] CPU: 5 PID: 220 Comm: kworker/5:1 Not tainted
4.10.13-200.fc25.x86_64 #1
[   18.478442] Hardware name: Dell Inc.          Dell System XPS L502X/0NJT03,
BIOS A12 09/07/2012
[   18.478448] Workqueue: events_long flush_old_commits [reiserfs]
[   18.478449] Call Trace:
[   18.478453]  dump_stack+0x63/0x86
[   18.478455]  __warn+0xcb/0xf0
[   18.478456]  warn_slowpath_null+0x1d/0x20
[   18.478457]  dquot_writeback_dquots+0x25a/0x260
[   18.478460]  reiserfs_sync_fs+0x2a/0x90 [reiserfs]
[   18.478463]  flush_old_commits+0x3e/0x50 [reiserfs]
[   18.478464]  process_one_work+0x197/0x450
[   18.478465]  worker_thread+0x4e/0x4a0
[   18.478467]  kthread+0x109/0x140
[   18.478468]  ? process_one_work+0x450/0x450
[   18.478469]  ? kthread_park+0x90/0x90
[   18.478479]  ret_from_fork+0x2c/0x40
[   18.478480] ---[ end trace ad0bdfa3c7d95ef1 ]---

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[Bug 195211] WARNING: CPU: 4 PID: 342 at fs/quota/dquot.c:619 dquot_writeback_dquots+0x25e/0x270

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=195211

menefis (platunovae+kernel@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |platunovae+kernel@gmail.com

--- Comment #3 from menefis (platunovae+kernel@gmail.com) ---
ArchLinux, same here:

------------[ cut here ]------------
WARNING: CPU: 1 PID: 270 at fs/quota/dquot.c:620
dquot_writeback_dquots+0x29b/0x2a0
Modules linked in: xfs nls_iso8859_1 nls_cp437 vfat fat btusb btrtl btbcm
btintel joydev bluetooth mousedev crc16 amdgpu arc4 iTCO_wdt
iTCO_vendor_support intel_rapl x86_pk
 sg acpi_call(O) ip_tables x_tables sd_mod hid_generic usbhid hid
rtsx_pci_sdmmc mmc_core serio_raw atkbd libps2 ahci libahci xhci_pci xhci_hcd
libata ehci_pci ehci_hcd scs
CPU: 1 PID: 270 Comm: kworker/1:2 Tainted: G           O    4.11.6-3-ARCH #1
Hardware name: LENOVO 20B3A02SRT/20B3A02SRT, BIOS GPET70WW (1.70 ) 05/04/2017
Workqueue: events_long flush_old_commits [reiserfs]
Call Trace:
 dump_stack+0x63/0x81
 __warn+0xcb/0xf0
 warn_slowpath_null+0x1d/0x20
 dquot_writeback_dquots+0x29b/0x2a0
 reiserfs_sync_fs+0x2a/0x90 [reiserfs]
 ? finish_task_switch+0x78/0x200
 flush_old_commits+0x47/0x50 [reiserfs]
 process_one_work+0x1e0/0x490
 worker_thread+0x48/0x4e0
 kthread+0x125/0x140
 ? process_one_work+0x490/0x490
 ? kthread_create_on_node+0x70/0x70
 ret_from_fork+0x2c/0x40
---[ end trace 17b60446368cc5d8 ]---

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[Bug 195211] WARNING: CPU: 4 PID: 342 at fs/quota/dquot.c:619 dquot_writeback_dquots+0x25e/0x270

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=195211

higuita (higuita@gmx.net) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |higuita@gmx.net

--- Comment #4 from higuita (higuita@gmx.net) ---
same problem here on 4.11.7

is this something that we should worry or just really a small warning?
for me, i can mount that old raiserfs read-only, as this partition is mostly
old data/archive partition

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