* nf_unregister_net_hook: hook not found!
@ 2015-12-28 20:05 Sander Eikelenboom
2015-12-30 0:12 ` Pablo Neira Ayuso
0 siblings, 1 reply; 5+ messages in thread
From: Sander Eikelenboom @ 2015-12-28 20:05 UTC (permalink / raw)
To: netdev, netfilter, linux-kernel
Hi,
Running a 4.4.0-rc6 kernel i encountered the warning below.
--
Sander
[ 13.740472] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 13.936237] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 13.945391] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 13.947434] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
[ 14.223990] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 14.232065] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 14.233570] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
[ 14.328141] systemd-logind[2485]: Failed to start user service:
Unknown unit: user@117.service
[ 14.356634] systemd-logind[2485]: New session c1 of user lightdm.
[ 14.357320] ------------[ cut here ]------------
[ 14.357327] WARNING: CPU: 2 PID: 102 at net/netfilter/core.c:143
netfilter_net_exit+0x25/0x50()
[ 14.357328] nf_unregister_net_hook: hook not found!
[ 14.357371] Modules linked in: iptable_security(+) iptable_raw
iptable_filter ip_tables x_tables input_polldev bnep binfmt_misc nfsd
auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc uvcvideo
videobuf2_vmalloc iTCO_wdt arc4 videobuf2_memops iTCO_vendor_support
intel_rapl iosf_mbi videobuf2_v4l2 x86_pkg_temp_thermal intel_powerclamp
btusb coretemp snd_hda_codec_hdmi iwldvm videobuf2_core btrtl kvm_intel
v4l2_common mac80211 videodev btbcm snd_hda_codec_conexant btintel media
kvm snd_hda_codec_generic bluetooth psmouse thinkpad_acpi iwlwifi
snd_hda_intel pcspkr serio_raw snd_hda_codec nvram cfg80211 snd_hwdep
snd_hda_core rfkill i2c_i801 lpc_ich snd_pcm mfd_core snd_timer evdev
snd soundcore shpchp tpm_tis tpm algif_skcipher af_alg crct10dif_pclmul
crc32_pclmul crc32c_intel aesni_intel
[ 14.357380] ehci_pci sdhci_pci aes_x86_64 glue_helper ehci_hcd
e1000e lrw ablk_helper sg sdhci cryptd sd_mod ptp mmc_core usbcore
usb_common pps_core
[ 14.357383] CPU: 2 PID: 102 Comm: kworker/u16:3 Tainted: G U
4.4.0-rc6-x220-20151224+ #1
[ 14.357384] Hardware name: LENOVO 42912ZU/42912ZU, BIOS 8DET69WW
(1.39 ) 07/18/2013
[ 14.357390] Workqueue: netns cleanup_net
[ 14.357393] ffffffff81a27dfd ffffffff81359c69 ffff88030e7cbd40
ffffffff81060297
[ 14.357395] ffff88030e820d80 ffff88030e7cbd90 ffffffff81c962d8
ffffffff81c962e0
[ 14.357397] ffff88030e7cbdf8 ffffffff81060317 ffffffff81a2c010
ffff880300000018
[ 14.357398] Call Trace:
[ 14.357405] [<ffffffff81359c69>] ? dump_stack+0x40/0x57
[ 14.357408] [<ffffffff81060297>] ? warn_slowpath_common+0x77/0xb0
[ 14.357410] [<ffffffff81060317>] ? warn_slowpath_fmt+0x47/0x50
[ 14.357416] [<ffffffff816f9549>] ? mutex_lock+0x9/0x30
[ 14.357418] [<ffffffff81641b35>] ? netfilter_net_exit+0x25/0x50
[ 14.357421] [<ffffffff8160b78e>] ? ops_exit_list.isra.6+0x2e/0x60
[ 14.357424] [<ffffffff8160c3eb>] ? cleanup_net+0x1ab/0x280
[ 14.357427] [<ffffffff81074b33>] ? process_one_work+0x133/0x330
[ 14.357429] [<ffffffff81074d90>] ? worker_thread+0x60/0x470
[ 14.357430] [<ffffffff81074d30>] ? process_one_work+0x330/0x330
[ 14.357434] [<ffffffff81079c0a>] ? kthread+0xca/0xe0
[ 14.357436] [<ffffffff81079b40>] ?
kthread_create_on_node+0x170/0x170
[ 14.357439] [<ffffffff816fb5cf>] ? ret_from_fork+0x3f/0x70
[ 14.357441] [<ffffffff81079b40>] ?
kthread_create_on_node+0x170/0x170
[ 14.357443] ---[ end trace 9984cc4b0e89f818 ]---
[ 14.357443] ------------[ cut here ]------------
[ 14.357446] WARNING: CPU: 2 PID: 102 at net/netfilter/core.c:143
netfilter_net_exit+0x25/0x50()
[ 14.357446] nf_unregister_net_hook: hook not found!
[ 14.357472] Modules linked in: iptable_security(+) iptable_raw
iptable_filter ip_tables x_tables input_polldev bnep binfmt_misc nfsd
auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc uvcvideo
videobuf2_vmalloc iTCO_wdt arc4 videobuf2_memops iTCO_vendor_support
intel_rapl iosf_mbi videobuf2_v4l2 x86_pkg_temp_thermal intel_powerclamp
btusb coretemp snd_hda_codec_hdmi iwldvm videobuf2_core btrtl kvm_intel
v4l2_common mac80211 videodev btbcm snd_hda_codec_conexant btintel media
kvm snd_hda_codec_generic bluetooth psmouse thinkpad_acpi iwlwifi
snd_hda_intel pcspkr serio_raw snd_hda_codec nvram cfg80211 snd_hwdep
snd_hda_core rfkill i2c_i801 lpc_ich snd_pcm mfd_core snd_timer evdev
snd soundcore shpchp tpm_tis tpm algif_skcipher af_alg crct10dif_pclmul
crc32_pclmul crc32c_intel aesni_intel
[ 14.357478] ehci_pci sdhci_pci aes_x86_64 glue_helper ehci_hcd
e1000e lrw ablk_helper sg sdhci cryptd sd_mod ptp mmc_core usbcore
usb_common pps_core
[ 14.357480] CPU: 2 PID: 102 Comm: kworker/u16:3 Tainted: G U W
4.4.0-rc6-x220-20151224+ #1
[ 14.357481] Hardware name: LENOVO 42912ZU/42912ZU, BIOS 8DET69WW
(1.39 ) 07/18/2013
[ 14.357484] Workqueue: netns cleanup_net
[ 14.357486] ffffffff81a27dfd ffffffff81359c69 ffff88030e7cbd40
ffffffff81060297
[ 14.357488] ffff88030e820db8 ffff88030e7cbd90 ffffffff81c962d8
ffffffff81c962e0
[ 14.357489] ffff88030e7cbdf8 ffffffff81060317 ffffffff81a2c010
ffff880300000018
[ 14.357490] Call Trace:
[ 14.357493] [<ffffffff81359c69>] ? dump_stack+0x40/0x57
[ 14.357495] [<ffffffff81060297>] ? warn_slowpath_common+0x77/0xb0
[ 14.357497] [<ffffffff81060317>] ? warn_slowpath_fmt+0x47/0x50
[ 14.357499] [<ffffffff816f9549>] ? mutex_lock+0x9/0x30
[ 14.357501] [<ffffffff81641b35>] ? netfilter_net_exit+0x25/0x50
[ 14.357504] [<ffffffff8160b78e>] ? ops_exit_list.isra.6+0x2e/0x60
[ 14.357507] [<ffffffff8160c3eb>] ? cleanup_net+0x1ab/0x280
[ 14.357509] [<ffffffff81074b33>] ? process_one_work+0x133/0x330
[ 14.357511] [<ffffffff81074d90>] ? worker_thread+0x60/0x470
[ 14.357512] [<ffffffff81074d30>] ? process_one_work+0x330/0x330
[ 14.357514] [<ffffffff81079c0a>] ? kthread+0xca/0xe0
[ 14.357517] [<ffffffff81079b40>] ?
kthread_create_on_node+0x170/0x170
[ 14.357519] [<ffffffff816fb5cf>] ? ret_from_fork+0x3f/0x70
[ 14.357521] [<ffffffff81079b40>] ?
kthread_create_on_node+0x170/0x170
[ 14.357522] ---[ end trace 9984cc4b0e89f819 ]---
[ 14.357523] ------------[ cut here ]------------
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: nf_unregister_net_hook: hook not found!
2015-12-28 20:05 nf_unregister_net_hook: hook not found! Sander Eikelenboom
@ 2015-12-30 0:12 ` Pablo Neira Ayuso
2015-12-30 2:39 ` Eric W. Biederman
0 siblings, 1 reply; 5+ messages in thread
From: Pablo Neira Ayuso @ 2015-12-30 0:12 UTC (permalink / raw)
To: Sander Eikelenboom
Cc: netdev, netfilter, linux-kernel, netfilter-devel,
Eric W. Biederman
On Mon, Dec 28, 2015 at 09:05:03PM +0100, Sander Eikelenboom wrote:
> Hi,
>
> Running a 4.4.0-rc6 kernel i encountered the warning below.
Cc'ing Eric Biederman.
@Sander, could you provide a way to reproduce this?
Thanks.
> [ 13.740472] ip_tables: (C) 2000-2006 Netfilter Core Team
> [ 13.936237] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
> [ 13.945391] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
> [ 13.947434] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
> [ 14.223990] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
> [ 14.232065] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
> [ 14.233570] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
> [ 14.328141] systemd-logind[2485]: Failed to start user service: Unknown
> unit: user@117.service
> [ 14.356634] systemd-logind[2485]: New session c1 of user lightdm.
> [ 14.357320] ------------[ cut here ]------------
> [ 14.357327] WARNING: CPU: 2 PID: 102 at net/netfilter/core.c:143
> netfilter_net_exit+0x25/0x50()
> [ 14.357328] nf_unregister_net_hook: hook not found!
> [ 14.357371] Modules linked in: iptable_security(+) iptable_raw
> iptable_filter ip_tables x_tables input_polldev bnep binfmt_misc nfsd
> auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc uvcvideo
> videobuf2_vmalloc iTCO_wdt arc4 videobuf2_memops iTCO_vendor_support
> intel_rapl iosf_mbi videobuf2_v4l2 x86_pkg_temp_thermal intel_powerclamp
> btusb coretemp snd_hda_codec_hdmi iwldvm videobuf2_core btrtl kvm_intel
> v4l2_common mac80211 videodev btbcm snd_hda_codec_conexant btintel media kvm
> snd_hda_codec_generic bluetooth psmouse thinkpad_acpi iwlwifi snd_hda_intel
> pcspkr serio_raw snd_hda_codec nvram cfg80211 snd_hwdep snd_hda_core rfkill
> i2c_i801 lpc_ich snd_pcm mfd_core snd_timer evdev snd soundcore shpchp
> tpm_tis tpm algif_skcipher af_alg crct10dif_pclmul crc32_pclmul crc32c_intel
> aesni_intel
> [ 14.357380] ehci_pci sdhci_pci aes_x86_64 glue_helper ehci_hcd e1000e
> lrw ablk_helper sg sdhci cryptd sd_mod ptp mmc_core usbcore usb_common
> pps_core
> [ 14.357383] CPU: 2 PID: 102 Comm: kworker/u16:3 Tainted: G U
> 4.4.0-rc6-x220-20151224+ #1
> [ 14.357384] Hardware name: LENOVO 42912ZU/42912ZU, BIOS 8DET69WW (1.39 )
> 07/18/2013
> [ 14.357390] Workqueue: netns cleanup_net
> [ 14.357393] ffffffff81a27dfd ffffffff81359c69 ffff88030e7cbd40
> ffffffff81060297
> [ 14.357395] ffff88030e820d80 ffff88030e7cbd90 ffffffff81c962d8
> ffffffff81c962e0
> [ 14.357397] ffff88030e7cbdf8 ffffffff81060317 ffffffff81a2c010
> ffff880300000018
> [ 14.357398] Call Trace:
> [ 14.357405] [<ffffffff81359c69>] ? dump_stack+0x40/0x57
> [ 14.357408] [<ffffffff81060297>] ? warn_slowpath_common+0x77/0xb0
> [ 14.357410] [<ffffffff81060317>] ? warn_slowpath_fmt+0x47/0x50
> [ 14.357416] [<ffffffff816f9549>] ? mutex_lock+0x9/0x30
> [ 14.357418] [<ffffffff81641b35>] ? netfilter_net_exit+0x25/0x50
> [ 14.357421] [<ffffffff8160b78e>] ? ops_exit_list.isra.6+0x2e/0x60
> [ 14.357424] [<ffffffff8160c3eb>] ? cleanup_net+0x1ab/0x280
> [ 14.357427] [<ffffffff81074b33>] ? process_one_work+0x133/0x330
> [ 14.357429] [<ffffffff81074d90>] ? worker_thread+0x60/0x470
> [ 14.357430] [<ffffffff81074d30>] ? process_one_work+0x330/0x330
> [ 14.357434] [<ffffffff81079c0a>] ? kthread+0xca/0xe0
> [ 14.357436] [<ffffffff81079b40>] ? kthread_create_on_node+0x170/0x170
> [ 14.357439] [<ffffffff816fb5cf>] ? ret_from_fork+0x3f/0x70
> [ 14.357441] [<ffffffff81079b40>] ? kthread_create_on_node+0x170/0x170
> [ 14.357443] ---[ end trace 9984cc4b0e89f818 ]---
> [ 14.357443] ------------[ cut here ]------------
> [ 14.357446] WARNING: CPU: 2 PID: 102 at net/netfilter/core.c:143
> netfilter_net_exit+0x25/0x50()
> [ 14.357446] nf_unregister_net_hook: hook not found!
> [ 14.357472] Modules linked in: iptable_security(+) iptable_raw
> iptable_filter ip_tables x_tables input_polldev bnep binfmt_misc nfsd
> auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc uvcvideo
> videobuf2_vmalloc iTCO_wdt arc4 videobuf2_memops iTCO_vendor_support
> intel_rapl iosf_mbi videobuf2_v4l2 x86_pkg_temp_thermal intel_powerclamp
> btusb coretemp snd_hda_codec_hdmi iwldvm videobuf2_core btrtl kvm_intel
> v4l2_common mac80211 videodev btbcm snd_hda_codec_conexant btintel media kvm
> snd_hda_codec_generic bluetooth psmouse thinkpad_acpi iwlwifi snd_hda_intel
> pcspkr serio_raw snd_hda_codec nvram cfg80211 snd_hwdep snd_hda_core rfkill
> i2c_i801 lpc_ich snd_pcm mfd_core snd_timer evdev snd soundcore shpchp
> tpm_tis tpm algif_skcipher af_alg crct10dif_pclmul crc32_pclmul crc32c_intel
> aesni_intel
> [ 14.357478] ehci_pci sdhci_pci aes_x86_64 glue_helper ehci_hcd e1000e
> lrw ablk_helper sg sdhci cryptd sd_mod ptp mmc_core usbcore usb_common
> pps_core
> [ 14.357480] CPU: 2 PID: 102 Comm: kworker/u16:3 Tainted: G U W
> 4.4.0-rc6-x220-20151224+ #1
> [ 14.357481] Hardware name: LENOVO 42912ZU/42912ZU, BIOS 8DET69WW (1.39 )
> 07/18/2013
> [ 14.357484] Workqueue: netns cleanup_net
> [ 14.357486] ffffffff81a27dfd ffffffff81359c69 ffff88030e7cbd40
> ffffffff81060297
> [ 14.357488] ffff88030e820db8 ffff88030e7cbd90 ffffffff81c962d8
> ffffffff81c962e0
> [ 14.357489] ffff88030e7cbdf8 ffffffff81060317 ffffffff81a2c010
> ffff880300000018
> [ 14.357490] Call Trace:
> [ 14.357493] [<ffffffff81359c69>] ? dump_stack+0x40/0x57
> [ 14.357495] [<ffffffff81060297>] ? warn_slowpath_common+0x77/0xb0
> [ 14.357497] [<ffffffff81060317>] ? warn_slowpath_fmt+0x47/0x50
> [ 14.357499] [<ffffffff816f9549>] ? mutex_lock+0x9/0x30
> [ 14.357501] [<ffffffff81641b35>] ? netfilter_net_exit+0x25/0x50
> [ 14.357504] [<ffffffff8160b78e>] ? ops_exit_list.isra.6+0x2e/0x60
> [ 14.357507] [<ffffffff8160c3eb>] ? cleanup_net+0x1ab/0x280
> [ 14.357509] [<ffffffff81074b33>] ? process_one_work+0x133/0x330
> [ 14.357511] [<ffffffff81074d90>] ? worker_thread+0x60/0x470
> [ 14.357512] [<ffffffff81074d30>] ? process_one_work+0x330/0x330
> [ 14.357514] [<ffffffff81079c0a>] ? kthread+0xca/0xe0
> [ 14.357517] [<ffffffff81079b40>] ? kthread_create_on_node+0x170/0x170
> [ 14.357519] [<ffffffff816fb5cf>] ? ret_from_fork+0x3f/0x70
> [ 14.357521] [<ffffffff81079b40>] ? kthread_create_on_node+0x170/0x170
> [ 14.357522] ---[ end trace 9984cc4b0e89f819 ]---
> [ 14.357523] ------------[ cut here ]------------
>
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@vger.kernel.org
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: nf_unregister_net_hook: hook not found!
2015-12-30 0:12 ` Pablo Neira Ayuso
@ 2015-12-30 2:39 ` Eric W. Biederman
2015-12-30 18:15 ` Sander Eikelenboom
0 siblings, 1 reply; 5+ messages in thread
From: Eric W. Biederman @ 2015-12-30 2:39 UTC (permalink / raw)
To: Pablo Neira Ayuso
Cc: Sander Eikelenboom, netdev, netfilter, linux-kernel,
netfilter-devel
Pablo Neira Ayuso <pablo@netfilter.org> writes:
> On Mon, Dec 28, 2015 at 09:05:03PM +0100, Sander Eikelenboom wrote:
>> Hi,
>>
>> Running a 4.4.0-rc6 kernel i encountered the warning below.
>
> Cc'ing Eric Biederman.
>
> @Sander, could you provide a way to reproduce this?
I am on vacation until the new year, but if this is reproducible we
should be able to print out reg, reg->pf, reg->hooknum, reg->hook
to figure out which hook is having something very weird happen to it.
This is happening in some network namespace exit.
Eric
> Thanks.
>
>> [ 13.740472] ip_tables: (C) 2000-2006 Netfilter Core Team
>> [ 13.936237] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
>> [ 13.945391] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
>> [ 13.947434] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
>> [ 14.223990] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
>> [ 14.232065] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
>> [ 14.233570] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
>> [ 14.328141] systemd-logind[2485]: Failed to start user service: Unknown
>> unit: user@117.service
>> [ 14.356634] systemd-logind[2485]: New session c1 of user lightdm.
>> [ 14.357320] ------------[ cut here ]------------
>> [ 14.357327] WARNING: CPU: 2 PID: 102 at net/netfilter/core.c:143
>> netfilter_net_exit+0x25/0x50()
>> [ 14.357328] nf_unregister_net_hook: hook not found!
>> [ 14.357371] Modules linked in: iptable_security(+) iptable_raw
>> iptable_filter ip_tables x_tables input_polldev bnep binfmt_misc nfsd
>> auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc uvcvideo
>> videobuf2_vmalloc iTCO_wdt arc4 videobuf2_memops iTCO_vendor_support
>> intel_rapl iosf_mbi videobuf2_v4l2 x86_pkg_temp_thermal intel_powerclamp
>> btusb coretemp snd_hda_codec_hdmi iwldvm videobuf2_core btrtl kvm_intel
>> v4l2_common mac80211 videodev btbcm snd_hda_codec_conexant btintel media kvm
>> snd_hda_codec_generic bluetooth psmouse thinkpad_acpi iwlwifi snd_hda_intel
>> pcspkr serio_raw snd_hda_codec nvram cfg80211 snd_hwdep snd_hda_core rfkill
>> i2c_i801 lpc_ich snd_pcm mfd_core snd_timer evdev snd soundcore shpchp
>> tpm_tis tpm algif_skcipher af_alg crct10dif_pclmul crc32_pclmul crc32c_intel
>> aesni_intel
>> [ 14.357380] ehci_pci sdhci_pci aes_x86_64 glue_helper ehci_hcd e1000e
>> lrw ablk_helper sg sdhci cryptd sd_mod ptp mmc_core usbcore usb_common
>> pps_core
>> [ 14.357383] CPU: 2 PID: 102 Comm: kworker/u16:3 Tainted: G U
>> 4.4.0-rc6-x220-20151224+ #1
>> [ 14.357384] Hardware name: LENOVO 42912ZU/42912ZU, BIOS 8DET69WW (1.39 )
>> 07/18/2013
>> [ 14.357390] Workqueue: netns cleanup_net
>> [ 14.357393] ffffffff81a27dfd ffffffff81359c69 ffff88030e7cbd40
>> ffffffff81060297
>> [ 14.357395] ffff88030e820d80 ffff88030e7cbd90 ffffffff81c962d8
>> ffffffff81c962e0
>> [ 14.357397] ffff88030e7cbdf8 ffffffff81060317 ffffffff81a2c010
>> ffff880300000018
>> [ 14.357398] Call Trace:
>> [ 14.357405] [<ffffffff81359c69>] ? dump_stack+0x40/0x57
>> [ 14.357408] [<ffffffff81060297>] ? warn_slowpath_common+0x77/0xb0
>> [ 14.357410] [<ffffffff81060317>] ? warn_slowpath_fmt+0x47/0x50
>> [ 14.357416] [<ffffffff816f9549>] ? mutex_lock+0x9/0x30
>> [ 14.357418] [<ffffffff81641b35>] ? netfilter_net_exit+0x25/0x50
>> [ 14.357421] [<ffffffff8160b78e>] ? ops_exit_list.isra.6+0x2e/0x60
>> [ 14.357424] [<ffffffff8160c3eb>] ? cleanup_net+0x1ab/0x280
>> [ 14.357427] [<ffffffff81074b33>] ? process_one_work+0x133/0x330
>> [ 14.357429] [<ffffffff81074d90>] ? worker_thread+0x60/0x470
>> [ 14.357430] [<ffffffff81074d30>] ? process_one_work+0x330/0x330
>> [ 14.357434] [<ffffffff81079c0a>] ? kthread+0xca/0xe0
>> [ 14.357436] [<ffffffff81079b40>] ? kthread_create_on_node+0x170/0x170
>> [ 14.357439] [<ffffffff816fb5cf>] ? ret_from_fork+0x3f/0x70
>> [ 14.357441] [<ffffffff81079b40>] ? kthread_create_on_node+0x170/0x170
>> [ 14.357443] ---[ end trace 9984cc4b0e89f818 ]---
>> [ 14.357443] ------------[ cut here ]------------
>> [ 14.357446] WARNING: CPU: 2 PID: 102 at net/netfilter/core.c:143
>> netfilter_net_exit+0x25/0x50()
>> [ 14.357446] nf_unregister_net_hook: hook not found!
>> [ 14.357472] Modules linked in: iptable_security(+) iptable_raw
>> iptable_filter ip_tables x_tables input_polldev bnep binfmt_misc nfsd
>> auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc uvcvideo
>> videobuf2_vmalloc iTCO_wdt arc4 videobuf2_memops iTCO_vendor_support
>> intel_rapl iosf_mbi videobuf2_v4l2 x86_pkg_temp_thermal intel_powerclamp
>> btusb coretemp snd_hda_codec_hdmi iwldvm videobuf2_core btrtl kvm_intel
>> v4l2_common mac80211 videodev btbcm snd_hda_codec_conexant btintel media kvm
>> snd_hda_codec_generic bluetooth psmouse thinkpad_acpi iwlwifi snd_hda_intel
>> pcspkr serio_raw snd_hda_codec nvram cfg80211 snd_hwdep snd_hda_core rfkill
>> i2c_i801 lpc_ich snd_pcm mfd_core snd_timer evdev snd soundcore shpchp
>> tpm_tis tpm algif_skcipher af_alg crct10dif_pclmul crc32_pclmul crc32c_intel
>> aesni_intel
>> [ 14.357478] ehci_pci sdhci_pci aes_x86_64 glue_helper ehci_hcd e1000e
>> lrw ablk_helper sg sdhci cryptd sd_mod ptp mmc_core usbcore usb_common
>> pps_core
>> [ 14.357480] CPU: 2 PID: 102 Comm: kworker/u16:3 Tainted: G U W
>> 4.4.0-rc6-x220-20151224+ #1
>> [ 14.357481] Hardware name: LENOVO 42912ZU/42912ZU, BIOS 8DET69WW (1.39 )
>> 07/18/2013
>> [ 14.357484] Workqueue: netns cleanup_net
>> [ 14.357486] ffffffff81a27dfd ffffffff81359c69 ffff88030e7cbd40
>> ffffffff81060297
>> [ 14.357488] ffff88030e820db8 ffff88030e7cbd90 ffffffff81c962d8
>> ffffffff81c962e0
>> [ 14.357489] ffff88030e7cbdf8 ffffffff81060317 ffffffff81a2c010
>> ffff880300000018
>> [ 14.357490] Call Trace:
>> [ 14.357493] [<ffffffff81359c69>] ? dump_stack+0x40/0x57
>> [ 14.357495] [<ffffffff81060297>] ? warn_slowpath_common+0x77/0xb0
>> [ 14.357497] [<ffffffff81060317>] ? warn_slowpath_fmt+0x47/0x50
>> [ 14.357499] [<ffffffff816f9549>] ? mutex_lock+0x9/0x30
>> [ 14.357501] [<ffffffff81641b35>] ? netfilter_net_exit+0x25/0x50
>> [ 14.357504] [<ffffffff8160b78e>] ? ops_exit_list.isra.6+0x2e/0x60
>> [ 14.357507] [<ffffffff8160c3eb>] ? cleanup_net+0x1ab/0x280
>> [ 14.357509] [<ffffffff81074b33>] ? process_one_work+0x133/0x330
>> [ 14.357511] [<ffffffff81074d90>] ? worker_thread+0x60/0x470
>> [ 14.357512] [<ffffffff81074d30>] ? process_one_work+0x330/0x330
>> [ 14.357514] [<ffffffff81079c0a>] ? kthread+0xca/0xe0
>> [ 14.357517] [<ffffffff81079b40>] ? kthread_create_on_node+0x170/0x170
>> [ 14.357519] [<ffffffff816fb5cf>] ? ret_from_fork+0x3f/0x70
>> [ 14.357521] [<ffffffff81079b40>] ? kthread_create_on_node+0x170/0x170
>> [ 14.357522] ---[ end trace 9984cc4b0e89f819 ]---
>> [ 14.357523] ------------[ cut here ]------------
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe netdev" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: nf_unregister_net_hook: hook not found!
2015-12-30 2:39 ` Eric W. Biederman
@ 2015-12-30 18:15 ` Sander Eikelenboom
2016-01-19 21:58 ` Joe Stringer
0 siblings, 1 reply; 5+ messages in thread
From: Sander Eikelenboom @ 2015-12-30 18:15 UTC (permalink / raw)
To: ebiederm
Cc: Pablo Neira Ayuso, netdev, netfilter, linux-kernel,
netfilter-devel
On 2015-12-30 03:39, ebiederm@xmission.com wrote:
> Pablo Neira Ayuso <pablo@netfilter.org> writes:
>
>> On Mon, Dec 28, 2015 at 09:05:03PM +0100, Sander Eikelenboom wrote:
>>> Hi,
>>>
>>> Running a 4.4.0-rc6 kernel i encountered the warning below.
>>
>> Cc'ing Eric Biederman.
>>
>> @Sander, could you provide a way to reproduce this?
>
> I am on vacation until the new year, but if this is reproducible we
> should be able to print out reg, reg->pf, reg->hooknum, reg->hook
> to figure out which hook is having something very weird happen to it.
>
> This is happening in some network namespace exit.
>
> Eric
>
Unfortunately i have found no way to reproduce,
13 seconds implies it was at boot, but i only have seen this once.
--
Sander
>> Thanks.
>>
>>> [ 13.740472] ip_tables: (C) 2000-2006 Netfilter Core Team
>>> [ 13.936237] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
>>> [ 13.945391] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
>>> [ 13.947434] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
>>> [ 14.223990] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
>>> [ 14.232065] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
>>> [ 14.233570] iwlwifi 0000:03:00.0: Radio type=0x2-0x1-0x0
>>> [ 14.328141] systemd-logind[2485]: Failed to start user service:
>>> Unknown
>>> unit: user@117.service
>>> [ 14.356634] systemd-logind[2485]: New session c1 of user lightdm.
>>> [ 14.357320] ------------[ cut here ]------------
>>> [ 14.357327] WARNING: CPU: 2 PID: 102 at net/netfilter/core.c:143
>>> netfilter_net_exit+0x25/0x50()
>>> [ 14.357328] nf_unregister_net_hook: hook not found!
>>> [ 14.357371] Modules linked in: iptable_security(+) iptable_raw
>>> iptable_filter ip_tables x_tables input_polldev bnep binfmt_misc nfsd
>>> auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc
>>> uvcvideo
>>> videobuf2_vmalloc iTCO_wdt arc4 videobuf2_memops iTCO_vendor_support
>>> intel_rapl iosf_mbi videobuf2_v4l2 x86_pkg_temp_thermal
>>> intel_powerclamp
>>> btusb coretemp snd_hda_codec_hdmi iwldvm videobuf2_core btrtl
>>> kvm_intel
>>> v4l2_common mac80211 videodev btbcm snd_hda_codec_conexant btintel
>>> media kvm
>>> snd_hda_codec_generic bluetooth psmouse thinkpad_acpi iwlwifi
>>> snd_hda_intel
>>> pcspkr serio_raw snd_hda_codec nvram cfg80211 snd_hwdep snd_hda_core
>>> rfkill
>>> i2c_i801 lpc_ich snd_pcm mfd_core snd_timer evdev snd soundcore
>>> shpchp
>>> tpm_tis tpm algif_skcipher af_alg crct10dif_pclmul crc32_pclmul
>>> crc32c_intel
>>> aesni_intel
>>> [ 14.357380] ehci_pci sdhci_pci aes_x86_64 glue_helper ehci_hcd
>>> e1000e
>>> lrw ablk_helper sg sdhci cryptd sd_mod ptp mmc_core usbcore
>>> usb_common
>>> pps_core
>>> [ 14.357383] CPU: 2 PID: 102 Comm: kworker/u16:3 Tainted: G U
>>> 4.4.0-rc6-x220-20151224+ #1
>>> [ 14.357384] Hardware name: LENOVO 42912ZU/42912ZU, BIOS 8DET69WW
>>> (1.39 )
>>> 07/18/2013
>>> [ 14.357390] Workqueue: netns cleanup_net
>>> [ 14.357393] ffffffff81a27dfd ffffffff81359c69 ffff88030e7cbd40
>>> ffffffff81060297
>>> [ 14.357395] ffff88030e820d80 ffff88030e7cbd90 ffffffff81c962d8
>>> ffffffff81c962e0
>>> [ 14.357397] ffff88030e7cbdf8 ffffffff81060317 ffffffff81a2c010
>>> ffff880300000018
>>> [ 14.357398] Call Trace:
>>> [ 14.357405] [<ffffffff81359c69>] ? dump_stack+0x40/0x57
>>> [ 14.357408] [<ffffffff81060297>] ? warn_slowpath_common+0x77/0xb0
>>> [ 14.357410] [<ffffffff81060317>] ? warn_slowpath_fmt+0x47/0x50
>>> [ 14.357416] [<ffffffff816f9549>] ? mutex_lock+0x9/0x30
>>> [ 14.357418] [<ffffffff81641b35>] ? netfilter_net_exit+0x25/0x50
>>> [ 14.357421] [<ffffffff8160b78e>] ? ops_exit_list.isra.6+0x2e/0x60
>>> [ 14.357424] [<ffffffff8160c3eb>] ? cleanup_net+0x1ab/0x280
>>> [ 14.357427] [<ffffffff81074b33>] ? process_one_work+0x133/0x330
>>> [ 14.357429] [<ffffffff81074d90>] ? worker_thread+0x60/0x470
>>> [ 14.357430] [<ffffffff81074d30>] ? process_one_work+0x330/0x330
>>> [ 14.357434] [<ffffffff81079c0a>] ? kthread+0xca/0xe0
>>> [ 14.357436] [<ffffffff81079b40>] ?
>>> kthread_create_on_node+0x170/0x170
>>> [ 14.357439] [<ffffffff816fb5cf>] ? ret_from_fork+0x3f/0x70
>>> [ 14.357441] [<ffffffff81079b40>] ?
>>> kthread_create_on_node+0x170/0x170
>>> [ 14.357443] ---[ end trace 9984cc4b0e89f818 ]---
>>> [ 14.357443] ------------[ cut here ]------------
>>> [ 14.357446] WARNING: CPU: 2 PID: 102 at net/netfilter/core.c:143
>>> netfilter_net_exit+0x25/0x50()
>>> [ 14.357446] nf_unregister_net_hook: hook not found!
>>> [ 14.357472] Modules linked in: iptable_security(+) iptable_raw
>>> iptable_filter ip_tables x_tables input_polldev bnep binfmt_misc nfsd
>>> auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc
>>> uvcvideo
>>> videobuf2_vmalloc iTCO_wdt arc4 videobuf2_memops iTCO_vendor_support
>>> intel_rapl iosf_mbi videobuf2_v4l2 x86_pkg_temp_thermal
>>> intel_powerclamp
>>> btusb coretemp snd_hda_codec_hdmi iwldvm videobuf2_core btrtl
>>> kvm_intel
>>> v4l2_common mac80211 videodev btbcm snd_hda_codec_conexant btintel
>>> media kvm
>>> snd_hda_codec_generic bluetooth psmouse thinkpad_acpi iwlwifi
>>> snd_hda_intel
>>> pcspkr serio_raw snd_hda_codec nvram cfg80211 snd_hwdep snd_hda_core
>>> rfkill
>>> i2c_i801 lpc_ich snd_pcm mfd_core snd_timer evdev snd soundcore
>>> shpchp
>>> tpm_tis tpm algif_skcipher af_alg crct10dif_pclmul crc32_pclmul
>>> crc32c_intel
>>> aesni_intel
>>> [ 14.357478] ehci_pci sdhci_pci aes_x86_64 glue_helper ehci_hcd
>>> e1000e
>>> lrw ablk_helper sg sdhci cryptd sd_mod ptp mmc_core usbcore
>>> usb_common
>>> pps_core
>>> [ 14.357480] CPU: 2 PID: 102 Comm: kworker/u16:3 Tainted: G U
>>> W
>>> 4.4.0-rc6-x220-20151224+ #1
>>> [ 14.357481] Hardware name: LENOVO 42912ZU/42912ZU, BIOS 8DET69WW
>>> (1.39 )
>>> 07/18/2013
>>> [ 14.357484] Workqueue: netns cleanup_net
>>> [ 14.357486] ffffffff81a27dfd ffffffff81359c69 ffff88030e7cbd40
>>> ffffffff81060297
>>> [ 14.357488] ffff88030e820db8 ffff88030e7cbd90 ffffffff81c962d8
>>> ffffffff81c962e0
>>> [ 14.357489] ffff88030e7cbdf8 ffffffff81060317 ffffffff81a2c010
>>> ffff880300000018
>>> [ 14.357490] Call Trace:
>>> [ 14.357493] [<ffffffff81359c69>] ? dump_stack+0x40/0x57
>>> [ 14.357495] [<ffffffff81060297>] ? warn_slowpath_common+0x77/0xb0
>>> [ 14.357497] [<ffffffff81060317>] ? warn_slowpath_fmt+0x47/0x50
>>> [ 14.357499] [<ffffffff816f9549>] ? mutex_lock+0x9/0x30
>>> [ 14.357501] [<ffffffff81641b35>] ? netfilter_net_exit+0x25/0x50
>>> [ 14.357504] [<ffffffff8160b78e>] ? ops_exit_list.isra.6+0x2e/0x60
>>> [ 14.357507] [<ffffffff8160c3eb>] ? cleanup_net+0x1ab/0x280
>>> [ 14.357509] [<ffffffff81074b33>] ? process_one_work+0x133/0x330
>>> [ 14.357511] [<ffffffff81074d90>] ? worker_thread+0x60/0x470
>>> [ 14.357512] [<ffffffff81074d30>] ? process_one_work+0x330/0x330
>>> [ 14.357514] [<ffffffff81079c0a>] ? kthread+0xca/0xe0
>>> [ 14.357517] [<ffffffff81079b40>] ?
>>> kthread_create_on_node+0x170/0x170
>>> [ 14.357519] [<ffffffff816fb5cf>] ? ret_from_fork+0x3f/0x70
>>> [ 14.357521] [<ffffffff81079b40>] ?
>>> kthread_create_on_node+0x170/0x170
>>> [ 14.357522] ---[ end trace 9984cc4b0e89f819 ]---
>>> [ 14.357523] ------------[ cut here ]------------
>>>
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe netdev" in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: nf_unregister_net_hook: hook not found!
2015-12-30 18:15 ` Sander Eikelenboom
@ 2016-01-19 21:58 ` Joe Stringer
0 siblings, 0 replies; 5+ messages in thread
From: Joe Stringer @ 2016-01-19 21:58 UTC (permalink / raw)
To: Sander Eikelenboom
Cc: ebiederm, Pablo Neira Ayuso, netdev, netfilter, linux-kernel,
netfilter-devel
On 30 December 2015 at 10:15, Sander Eikelenboom <linux@eikelenboom.it> wrote:
> On 2015-12-30 03:39, ebiederm@xmission.com wrote:
>>
>> Pablo Neira Ayuso <pablo@netfilter.org> writes:
>>
>>> On Mon, Dec 28, 2015 at 09:05:03PM +0100, Sander Eikelenboom wrote:
>>>>
>>>> Hi,
>>>>
>>>> Running a 4.4.0-rc6 kernel i encountered the warning below.
>>>
>>>
>>> Cc'ing Eric Biederman.
>>>
>>> @Sander, could you provide a way to reproduce this?
>>
>>
>> I am on vacation until the new year, but if this is reproducible we
>> should be able to print out reg, reg->pf, reg->hooknum, reg->hook
>> to figure out which hook is having something very weird happen to it.
>>
>> This is happening in some network namespace exit.
>>
>> Eric
>>
>
> Unfortunately i have found no way to reproduce,
> 13 seconds implies it was at boot, but i only have seen this once.
How about this script?
#!/bin/sh
ip netns add at_ns0
ip netns del at_ns0
modprobe nf_conntrack_ipv4
modprobe -r nf_conntrack_ipv4
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-01-19 22:01 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-12-28 20:05 nf_unregister_net_hook: hook not found! Sander Eikelenboom
2015-12-30 0:12 ` Pablo Neira Ayuso
2015-12-30 2:39 ` Eric W. Biederman
2015-12-30 18:15 ` Sander Eikelenboom
2016-01-19 21:58 ` Joe Stringer
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