* WARNING: CPU: 6 PID: 79 at fs/proc/generic.c:521 remove_proc_entry+0x170/0x180()
@ 2014-08-20 1:04 Christian Kujau
2014-08-20 2:50 ` Jiang Liu
0 siblings, 1 reply; 4+ messages in thread
From: Christian Kujau @ 2014-08-20 1:04 UTC (permalink / raw)
To: LKML; +Cc: viro, adobriyan, jiang.liu
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 ]---
--
BOFH excuse #285:
Telecommunications is upgrading.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: WARNING: CPU: 6 PID: 79 at fs/proc/generic.c:521 remove_proc_entry+0x170/0x180()
2014-08-20 1:04 WARNING: CPU: 6 PID: 79 at fs/proc/generic.c:521 remove_proc_entry+0x170/0x180() Christian Kujau
@ 2014-08-20 2:50 ` Jiang Liu
2014-08-20 3:13 ` Cong Wang
0 siblings, 1 reply; 4+ messages in thread
From: Jiang Liu @ 2014-08-20 2:50 UTC (permalink / raw)
To: Christian Kujau, LKML; +Cc: viro, adobriyan
Hi Kujau,
It seems like a different issue, something wrong with
void nfs_fs_proc_net_exit(struct net *net)
{
struct nfs_net *nn = net_generic(net, nfs_net_id);
remove_proc_entry("volumes", nn->proc_nfsfs);
remove_proc_entry("servers", nn->proc_nfsfs);
remove_proc_entry("fs/nfsfs", NULL);
}
But I'm not familiar with this piece of code.
Regards!
Gerry
On 2014/8/20 9:04, Christian Kujau wrote:
> 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 ]---
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: WARNING: CPU: 6 PID: 79 at fs/proc/generic.c:521 remove_proc_entry+0x170/0x180()
2014-08-20 2:50 ` Jiang Liu
@ 2014-08-20 3:13 ` Cong Wang
2014-08-20 5:22 ` Christian Kujau
0 siblings, 1 reply; 4+ messages in thread
From: Cong Wang @ 2014-08-20 3:13 UTC (permalink / raw)
To: Jiang Liu; +Cc: Christian Kujau, LKML, Al Viro, Alexey Dobriyan
On Tue, Aug 19, 2014 at 7:50 PM, Jiang Liu <jiang.liu@linux.intel.com> wrote:
> Hi Kujau,
> It seems like a different issue, something wrong with
> void nfs_fs_proc_net_exit(struct net *net)
http://marc.info/?l=linux-nfs&m=140821782107427&w=2
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: WARNING: CPU: 6 PID: 79 at fs/proc/generic.c:521 remove_proc_entry+0x170/0x180()
2014-08-20 3:13 ` Cong Wang
@ 2014-08-20 5:22 ` Christian Kujau
0 siblings, 0 replies; 4+ messages in thread
From: Christian Kujau @ 2014-08-20 5:22 UTC (permalink / raw)
To: Cong Wang; +Cc: Jiang Liu, LKML, Al Viro, Alexey Dobriyan
On Tue, 19 Aug 2014 at 20:13, Cong Wang wrote:
> On Tue, Aug 19, 2014 at 7:50 PM, Jiang Liu <jiang.liu@linux.intel.com> wrote:
> > Hi Kujau,
> > It seems like a different issue, something wrong with
> > void nfs_fs_proc_net_exit(struct net *net)
>
> http://marc.info/?l=linux-nfs&m=140821782107427&w=2
Thanks, that helped!
Christian.
--
BOFH excuse #182:
endothermal recalibration
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2014-08-20 5:22 UTC | newest]
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2014-08-20 1:04 WARNING: CPU: 6 PID: 79 at fs/proc/generic.c:521 remove_proc_entry+0x170/0x180() Christian Kujau
2014-08-20 2:50 ` Jiang Liu
2014-08-20 3:13 ` Cong Wang
2014-08-20 5:22 ` Christian Kujau
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