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SubjectWARNING: CPU: 6 PID: 79 at fs/proc/generic.c:521 remove_proc_entry+0x170/0x180()
Hi,

the warning below appeared while booting 3.17.0-rc1. I haven't seen the
warning before, but found a recent report on oops.kernel.org:

http://oops.kernel.org/oops/warning-at-fs-proc-generic-c521-remove_proc_entry0x18f-0x1a0/

and also reports from July 2014, where the issue was reported to be fixed:

https://lkml.org/lkml/2014/7/16/9
https://lkml.org/lkml/2014/7/18/116

And the patch really made it into 3.17.0-rc1, so maybe it's something else
this time. Details and .config: http://nerdbynature.de/bits/3.17-rc1/

Thanks,
Christian.

------------[ cut here ]------------
WARNING: CPU: 6 PID: 79 at /usr/local/src/linux-git/fs/proc/generic.c:521 remove_proc_entry+0x170/0x180()
remove_proc_entry: removing non-empty directory 'fs/nfsfs', leaking at least 'volumes'
Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_core v4l2_common btusb videodev bluetooth hid_logitech_dj
sha256_ssse3 sha256_generic twofish_generic twofish_avx_x86_64 twofish_x86_64_3way twofish_x86_64 twofish_common
nfs xts lockd sunrpc arc4 coretemp x86_pkg_temp_thermal usbhid
intel_powerclamp hid iwldvm kvm_intel
mac80211 kvm snd_hda_codec_hdmi i2c_i801 iwlwifi cfg80211 thinkpad_acpi
snd_hda_codec_conexant snd_hda_codec_generic nvram hwmon led_class wmi
rtc_cmos i915 snd_hda_intel
i2c_algo_bit snd_hda_controller drm_kms_helper snd_hda_codec drm snd_hwdep
snd_pcm i2ccore snd_timer snd soundcore fuse autofs4 btrfs xor raid6_pq
aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd sr_mod cdrom sg ehci_pci
ehci_hcd xhci_hcd
CPU: 6 PID: 79 Comm: kworker/u16:6 Not tainted 3.17.0-rc1 #1
Hardware name: LENOVO 6277CTO/6277CTO, BIOS HEET42WW (1.23 ) 01/27/2014
Workqueue: netns cleanup_net
0000000000000009 ffffffff8149c1e2 ffff880406c8fd18 ffffffff8104ee6d
ffff880406701580 ffff880406c8fd68 0000000000000005 ffffffffc0883bae
ffffffffc0883bb1 ffffffff8104eed7 ffffffff815b1578 ffff880400000030
Call Trace:
[<ffffffff8149c1e2>] ? dump_stack+0x41/0x51
[<ffffffff8104ee6d>] ? warn_slowpath_common+0x6d/0x90
[<ffffffff8104eed7>] ? warn_slowpath_fmt+0x47/0x50
[<ffffffff811955d1>] ? proc_entry_rundown+0x41/0x80
[<ffffffff81199b50>] ? remove_proc_entry+0x170/0x180
[<ffffffffc0873a79>] ? nfs_net_exit+0x9/0x20 [nfs]
[<ffffffff813e5951>] ? ops_exit_list.isra.2+0x31/0x60
[<ffffffff813e6150>] ? cleanup_net+0x100/0x1e0
[<ffffffff8106316b>] ? process_one_work+0x16b/0x3b0
[<ffffffff81063ed3>] ? worker_thread+0x63/0x490
[<ffffffff81063e70>] ? rescuer_thread+0x280/0x280
[<ffffffff8106848a>] ? kthread+0xca/0xe0
[<ffffffff810683c0>] ? kthread_create_on_node+0x170/0x170
[<ffffffff814a1b7c>] ? ret_from_fork+0x7c/0xb0
[<ffffffff810683c0>] ? kthread_create_on_node+0x170/0x170
---[ end trace c92165dd3f372cf6 ]---


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