[Kernel-packages] [Bug 1803929] Re: Summary: Kernel bug (unhandled paging request) on "udisksctl power-off"
Seems to be fixed in 4.4.0-142-generic. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1810958 "xhci: Fix USB3 NULL pointer dereference at logical disconnect." -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1803929 Title: Summary: Kernel bug (unhandled paging request) on "udisksctl power- off" Status in linux package in Ubuntu: Confirmed Bug description: lsb_release -rd Description: Ubuntu 16.04.5 LTS Release: 16.04 uname -a Linux metabox 4.4.0-139-generic #165-Ubuntu SMP Wed Oct 24 10:58:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Steps (1) to reproduce: 1) Plug in a USB3 hard drive. 2) Right click on launcher icon. 3) Select "Safely Remove". After finding this: https://askubuntu.com/a/532691 ...the following steps also reproduce the problem. Steps (2) to reproduce: 1) Plugin in a USB3 hard drive. 2) udisksctl unmount -b /dev/sdXY 3) udisksctl power-off -b /dev/sdX System completely locks and becomes unresponsive, such that even the Magic SysRq key combination does nothing. Most of the time the fans on my laptop go crazy (so the CPU must get stuck in some loop), but once they did not and the system was just locked (without the fans going nuts). I can't get a textual copy of the kernel bug log (because I have to do a hard reset to regain control of the system and the output doesn't get flushed to disk), but I did manage to get a photo of some of it (please refer to attachment). --- ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC1D0p: matt 2754 F...m pulseaudio /dev/snd/controlC1: matt 2754 F pulseaudio /dev/snd/controlC0: matt 2754 F pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=f00235c0-ba8a-4403-91b1-64e9d87b76e0 InstallationDate: Installed on 2016-04-23 (940 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Notebook N150SD/N155SD NonfreeKernelModules: zfs zunicode zcommon znvpair zavl Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-139-generic root=UUID=beb9b9ce-39a7-464a-978c-ac4fb82a5a81 ro quiet splash ProcVersionSignature: Ubuntu 4.4.0-139.165-generic 4.4.160 RelatedPackageVersions: linux-restricted-modules-4.4.0-139-generic N/A linux-backports-modules-4.4.0-139-generic N/A linux-firmware 1.157.20 Tags: xenial Uname: Linux 4.4.0-139-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers wireshark _MarkForUpload: True dmi.bios.date: 03/31/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.03.05 dmi.board.asset.tag: Tag 12345 dmi.board.name: N150SD/N155SD dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.03.05:bd03/31/2015:svnNotebook:pnN150SD/N155SD:pvrNotApplicable:rvnNotebook:rnN150SD/N155SD:rvrNotApplicable:cvnNotebook:ct9:cvrN/A: dmi.product.name: N150SD/N155SD dmi.product.version: Not Applicable dmi.sys.vendor: Notebook To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803929/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1803929] Re: Summary: Kernel bug (unhandled paging request) on "udisksctl power-off"
** Attachment added: "trace.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803929/+attachment/5228879/+files/trace.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1803929 Title: Summary: Kernel bug (unhandled paging request) on "udisksctl power- off" Status in linux package in Ubuntu: Confirmed Bug description: lsb_release -rd Description: Ubuntu 16.04.5 LTS Release: 16.04 uname -a Linux metabox 4.4.0-139-generic #165-Ubuntu SMP Wed Oct 24 10:58:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Steps (1) to reproduce: 1) Plug in a USB3 hard drive. 2) Right click on launcher icon. 3) Select "Safely Remove". After finding this: https://askubuntu.com/a/532691 ...the following steps also reproduce the problem. Steps (2) to reproduce: 1) Plugin in a USB3 hard drive. 2) udisksctl unmount -b /dev/sdXY 3) udisksctl power-off -b /dev/sdX System completely locks and becomes unresponsive, such that even the Magic SysRq key combination does nothing. Most of the time the fans on my laptop go crazy (so the CPU must get stuck in some loop), but once they did not and the system was just locked (without the fans going nuts). I can't get a textual copy of the kernel bug log (because I have to do a hard reset to regain control of the system and the output doesn't get flushed to disk), but I did manage to get a photo of some of it (please refer to attachment). --- ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC1D0p: matt 2754 F...m pulseaudio /dev/snd/controlC1: matt 2754 F pulseaudio /dev/snd/controlC0: matt 2754 F pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=f00235c0-ba8a-4403-91b1-64e9d87b76e0 InstallationDate: Installed on 2016-04-23 (940 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Notebook N150SD/N155SD NonfreeKernelModules: zfs zunicode zcommon znvpair zavl Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-139-generic root=UUID=beb9b9ce-39a7-464a-978c-ac4fb82a5a81 ro quiet splash ProcVersionSignature: Ubuntu 4.4.0-139.165-generic 4.4.160 RelatedPackageVersions: linux-restricted-modules-4.4.0-139-generic N/A linux-backports-modules-4.4.0-139-generic N/A linux-firmware 1.157.20 Tags: xenial Uname: Linux 4.4.0-139-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers wireshark _MarkForUpload: True dmi.bios.date: 03/31/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.03.05 dmi.board.asset.tag: Tag 12345 dmi.board.name: N150SD/N155SD dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.03.05:bd03/31/2015:svnNotebook:pnN150SD/N155SD:pvrNotApplicable:rvnNotebook:rnN150SD/N155SD:rvrNotApplicable:cvnNotebook:ct9:cvrN/A: dmi.product.name: N150SD/N155SD dmi.product.version: Not Applicable dmi.sys.vendor: Notebook To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803929/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1803929] Re: Summary: Kernel bug (unhandled paging request) on "udisksctl power-off"
I was also able to reproduce this in kernels 4.4.0-139, -140 and -141. Kernel 4.4.0-138 worked fine. On kernel 4.4.0-140, the freeze didn't occur instantly but after about 20 seconds, so I was able to capture a stacktrace. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1803929 Title: Summary: Kernel bug (unhandled paging request) on "udisksctl power- off" Status in linux package in Ubuntu: Confirmed Bug description: lsb_release -rd Description: Ubuntu 16.04.5 LTS Release: 16.04 uname -a Linux metabox 4.4.0-139-generic #165-Ubuntu SMP Wed Oct 24 10:58:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux Steps (1) to reproduce: 1) Plug in a USB3 hard drive. 2) Right click on launcher icon. 3) Select "Safely Remove". After finding this: https://askubuntu.com/a/532691 ...the following steps also reproduce the problem. Steps (2) to reproduce: 1) Plugin in a USB3 hard drive. 2) udisksctl unmount -b /dev/sdXY 3) udisksctl power-off -b /dev/sdX System completely locks and becomes unresponsive, such that even the Magic SysRq key combination does nothing. Most of the time the fans on my laptop go crazy (so the CPU must get stuck in some loop), but once they did not and the system was just locked (without the fans going nuts). I can't get a textual copy of the kernel bug log (because I have to do a hard reset to regain control of the system and the output doesn't get flushed to disk), but I did manage to get a photo of some of it (please refer to attachment). --- ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC1D0p: matt 2754 F...m pulseaudio /dev/snd/controlC1: matt 2754 F pulseaudio /dev/snd/controlC0: matt 2754 F pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=f00235c0-ba8a-4403-91b1-64e9d87b76e0 InstallationDate: Installed on 2016-04-23 (940 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Notebook N150SD/N155SD NonfreeKernelModules: zfs zunicode zcommon znvpair zavl Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-139-generic root=UUID=beb9b9ce-39a7-464a-978c-ac4fb82a5a81 ro quiet splash ProcVersionSignature: Ubuntu 4.4.0-139.165-generic 4.4.160 RelatedPackageVersions: linux-restricted-modules-4.4.0-139-generic N/A linux-backports-modules-4.4.0-139-generic N/A linux-firmware 1.157.20 Tags: xenial Uname: Linux 4.4.0-139-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers wireshark _MarkForUpload: True dmi.bios.date: 03/31/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1.03.05 dmi.board.asset.tag: Tag 12345 dmi.board.name: N150SD/N155SD dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.03.05:bd03/31/2015:svnNotebook:pnN150SD/N155SD:pvrNotApplicable:rvnNotebook:rnN150SD/N155SD:rvrNotApplicable:cvnNotebook:ct9:cvrN/A: dmi.product.name: N150SD/N155SD dmi.product.version: Not Applicable dmi.sys.vendor: Notebook To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803929/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1508510] Re: Something in the Kernel crashes when I try to mount via NFS
I can confirm that, too. No issue with kernel 3.13.0-67 from trusty- proposed. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-lts-utopic in Ubuntu. https://bugs.launchpad.net/bugs/1508510 Title: Something in the Kernel crashes when I try to mount via NFS Status in linux package in Ubuntu: Invalid Status in linux-lts-utopic package in Ubuntu: Invalid Status in linux source package in Precise: Fix Committed Status in linux-lts-utopic source package in Precise: Invalid Status in linux source package in Trusty: Fix Committed Status in linux-lts-utopic source package in Trusty: Fix Committed Bug description: I have a vagrant virtual machine that mounts a directory on my computer via NFS, this does not work and the reason seems to be this. My System is using SMP, reverting to the kernel before solves the problem. Broken: Linux paul-ThinkPad-T430s 3.13.0-66-generic Working: Broken: Linux paul-ThinkPad-T430s 3.13.0-65-generic BUG: unable to handle kernel NULL pointer dereference at 0008 [ 84.360198] IP: [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360224] PGD 0 [ 84.360232] Oops: [#1] SMP [ 84.360246] Modules linked in: ctr ccm pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vmw_vsock_vmci_transport vsock vmw_vmci rfcomm bnep arc4 iwldvm mac80211 hid_generic usbhid hid snd_hda_codec_hdmi snd_hda_codec_realtek iwlwifi cfg80211 binfmt_misc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache nls_iso8859_1 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev cdc_mbim cdc_ncm usbnet mii cdc_wdm cdc_acm btusb bluetooth intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev serio_raw snd_hda_intel snd_hda_codec snd_hwdep thinkpad_acpi nvram snd_pcm snd_seq_midi lpc_ich snd_seq_midi_event snd_rawmidi shpchp snd_page_alloc mei_me mei i915 snd_seq drm_kms_helper drm i2c_algo_bit parport_pc wmi snd_seq_device snd_timer ppdev snd soundcore lp mac_hid parport video mmc_block psmouse e1000e ahci sdhci_pci libahc i ptp sdhci pps_core [ 84.360613] CPU: 2 PID: 1507 Comm: nfsd Tainted: G OX 3.13.0-66-generic #108-Ubuntu [ 84.360643] Hardware name: LENOVO 2355CTO/2355CTO, BIOS G7ET95WW (2.55 ) 07/10/2013 [ 84.360673] task: 880036929800 ti: 880036b7a000 task.ti: 880036b7a000 [ 84.360696] RIP: 0010:[] [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360728] RSP: 0018:880036b7bbc0 EFLAGS: 00010216 [ 84.360743] RAX: RBX: 880035910700 RCX: [ 84.360762] RDX: RSI: 0030 RDI: 88038e23ab00 [ 84.360781] RBP: 880036b7bbf8 R08: R09: 62e59d1a [ 84.360800] R10: R11: 0004 R12: 0008 [ 84.360819] R13: 88038e23ab00 R14: 0028 R15: 88038e23ab00 [ 84.360838] FS: () GS:88043e28() knlGS: [ 84.360859] CS: 0010 DS: ES: CR0: 80050033 [ 84.360874] CR2: 0008 CR3: 000425ea CR4: 001427e0 [ 84.360893] Stack: [ 84.360900] 81616f66 81616fb0 880035910700 880036b7bdf8 [ 84.360924] 0028 88038e23ab00 880036b7bc60 [ 84.360948] 8168b2ec 880426f8c028 880035910770 0002 [ 84.360972] Call Trace: [ 84.360984] [] ? skb_checksum+0x26/0x30 [ 84.361005] [] ? skb_push+0x40/0x40 [ 84.361025] [] udp_recvmsg+0x1dc/0x380 [ 84.361046] [] inet_recvmsg+0x6c/0x80 [ 84.361065] [] sock_recvmsg+0x9a/0xd0 [ 84.361087] [] ? del_timer_sync+0x4a/0x60 [ 84.361106] [] ? schedule_timeout+0x17d/0x2d0 [ 84.361126] [] kernel_recvmsg+0x3a/0x50 [ 84.361164] [] svc_udp_recvfrom+0x89/0x440 [sunrpc] [ 84.361185] [] ? _raw_spin_unlock_bh+0x1b/0x40 [ 84.361211] [] ? svc_get_next_xprt+0xd8/0x310 [sunrpc] [ 84.361237] [] svc_recv+0x4a0/0x5c0 [sunrpc] [ 84.361255] [] ? recalc_sigpending+0x1b/0x50 [ 84.361276] [] nfsd+0xad/0x130 [nfsd] [ 84.361295] [] ? nfsd_destroy+0x80/0x80 [nfsd] [ 84.361313] [] kthread+0xd2/0xf0 [ 84.361328] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361346] [] ret_from_fork+0x58/0x90 [ 84.361362] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361383] Code: 44 00 00 55 31 c0 48 89 e5 41 57 41 56 41 55 49 89 fd 41 54 41 89 f4 53 48 83 ec 10 8b 77 68 41 89 f6 45 29 e6 0f 84 89 00 00 00 <48> 8b 42 08 48 89 d3 48 85 c0 75 14 0f 1f 80 00 00 00 00 48 83 [ 84.361514] RIP [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.361546] RSP [ 84.361557] CR2: 0008 [ 84.366322] ---[ end trace
[Kernel-packages] [Bug 1508510] Re: Something in the Kernel crashes when I try to mount via NFS
Thanks @marius888. Yes, behaviour and the log-messages were exactly the same under 3.16.0-51, as you can see in marius' stacktrace. We were both facing this using vagrant-built virtualbox-machines with NFS-shares on Lenovo Thinkpads W520/30. I will try to reproduce it also on lts-vivid shortly. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1508510 Title: Something in the Kernel crashes when I try to mount via NFS Status in linux package in Ubuntu: Confirmed Bug description: I have a vagrant virtual machine that mounts a directory on my computer via NFS, this does not work and the reason seems to be this. My System is using SMP, reverting to the kernel before solves the problem. Broken: Linux paul-ThinkPad-T430s 3.13.0-66-generic Working: Broken: Linux paul-ThinkPad-T430s 3.13.0-65-generic BUG: unable to handle kernel NULL pointer dereference at 0008 [ 84.360198] IP: [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360224] PGD 0 [ 84.360232] Oops: [#1] SMP [ 84.360246] Modules linked in: ctr ccm pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vmw_vsock_vmci_transport vsock vmw_vmci rfcomm bnep arc4 iwldvm mac80211 hid_generic usbhid hid snd_hda_codec_hdmi snd_hda_codec_realtek iwlwifi cfg80211 binfmt_misc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache nls_iso8859_1 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev cdc_mbim cdc_ncm usbnet mii cdc_wdm cdc_acm btusb bluetooth intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev serio_raw snd_hda_intel snd_hda_codec snd_hwdep thinkpad_acpi nvram snd_pcm snd_seq_midi lpc_ich snd_seq_midi_event snd_rawmidi shpchp snd_page_alloc mei_me mei i915 snd_seq drm_kms_helper drm i2c_algo_bit parport_pc wmi snd_seq_device snd_timer ppdev snd soundcore lp mac_hid parport video mmc_block psmouse e1000e ahci sdhci_pci libahc i ptp sdhci pps_core [ 84.360613] CPU: 2 PID: 1507 Comm: nfsd Tainted: G OX 3.13.0-66-generic #108-Ubuntu [ 84.360643] Hardware name: LENOVO 2355CTO/2355CTO, BIOS G7ET95WW (2.55 ) 07/10/2013 [ 84.360673] task: 880036929800 ti: 880036b7a000 task.ti: 880036b7a000 [ 84.360696] RIP: 0010:[] [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360728] RSP: 0018:880036b7bbc0 EFLAGS: 00010216 [ 84.360743] RAX: RBX: 880035910700 RCX: [ 84.360762] RDX: RSI: 0030 RDI: 88038e23ab00 [ 84.360781] RBP: 880036b7bbf8 R08: R09: 62e59d1a [ 84.360800] R10: R11: 0004 R12: 0008 [ 84.360819] R13: 88038e23ab00 R14: 0028 R15: 88038e23ab00 [ 84.360838] FS: () GS:88043e28() knlGS: [ 84.360859] CS: 0010 DS: ES: CR0: 80050033 [ 84.360874] CR2: 0008 CR3: 000425ea CR4: 001427e0 [ 84.360893] Stack: [ 84.360900] 81616f66 81616fb0 880035910700 880036b7bdf8 [ 84.360924] 0028 88038e23ab00 880036b7bc60 [ 84.360948] 8168b2ec 880426f8c028 880035910770 0002 [ 84.360972] Call Trace: [ 84.360984] [] ? skb_checksum+0x26/0x30 [ 84.361005] [] ? skb_push+0x40/0x40 [ 84.361025] [] udp_recvmsg+0x1dc/0x380 [ 84.361046] [] inet_recvmsg+0x6c/0x80 [ 84.361065] [] sock_recvmsg+0x9a/0xd0 [ 84.361087] [] ? del_timer_sync+0x4a/0x60 [ 84.361106] [] ? schedule_timeout+0x17d/0x2d0 [ 84.361126] [] kernel_recvmsg+0x3a/0x50 [ 84.361164] [] svc_udp_recvfrom+0x89/0x440 [sunrpc] [ 84.361185] [] ? _raw_spin_unlock_bh+0x1b/0x40 [ 84.361211] [] ? svc_get_next_xprt+0xd8/0x310 [sunrpc] [ 84.361237] [] svc_recv+0x4a0/0x5c0 [sunrpc] [ 84.361255] [] ? recalc_sigpending+0x1b/0x50 [ 84.361276] [] nfsd+0xad/0x130 [nfsd] [ 84.361295] [] ? nfsd_destroy+0x80/0x80 [nfsd] [ 84.361313] [] kthread+0xd2/0xf0 [ 84.361328] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361346] [] ret_from_fork+0x58/0x90 [ 84.361362] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361383] Code: 44 00 00 55 31 c0 48 89 e5 41 57 41 56 41 55 49 89 fd 41 54 41 89 f4 53 48 83 ec 10 8b 77 68 41 89 f6 45 29 e6 0f 84 89 00 00 00 <48> 8b 42 08 48 89 d3 48 85 c0 75 14 0f 1f 80 00 00 00 00 48 83 [ 84.361514] RIP [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.361546] RSP [ 84.361557] CR2: 0008 [ 84.366322] ---[ end trace f8aceef52c8aecd1 ]--- ProblemType: Bug DistroRelease: Ubuntu 14.04 Package:
[Kernel-packages] [Bug 1508510] Re: Something in the Kernel crashes when I try to mount via NFS
You are right, no problems, neither with 3.19.0-31 nor with 3.19.0-30. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-lts-utopic in Ubuntu. https://bugs.launchpad.net/bugs/1508510 Title: Something in the Kernel crashes when I try to mount via NFS Status in linux package in Ubuntu: Invalid Status in linux-lts-utopic package in Ubuntu: Invalid Status in linux source package in Precise: Triaged Status in linux-lts-utopic source package in Precise: Invalid Status in linux source package in Trusty: Triaged Status in linux-lts-utopic source package in Trusty: Triaged Bug description: I have a vagrant virtual machine that mounts a directory on my computer via NFS, this does not work and the reason seems to be this. My System is using SMP, reverting to the kernel before solves the problem. Broken: Linux paul-ThinkPad-T430s 3.13.0-66-generic Working: Broken: Linux paul-ThinkPad-T430s 3.13.0-65-generic BUG: unable to handle kernel NULL pointer dereference at 0008 [ 84.360198] IP: [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360224] PGD 0 [ 84.360232] Oops: [#1] SMP [ 84.360246] Modules linked in: ctr ccm pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vmw_vsock_vmci_transport vsock vmw_vmci rfcomm bnep arc4 iwldvm mac80211 hid_generic usbhid hid snd_hda_codec_hdmi snd_hda_codec_realtek iwlwifi cfg80211 binfmt_misc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache nls_iso8859_1 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev cdc_mbim cdc_ncm usbnet mii cdc_wdm cdc_acm btusb bluetooth intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev serio_raw snd_hda_intel snd_hda_codec snd_hwdep thinkpad_acpi nvram snd_pcm snd_seq_midi lpc_ich snd_seq_midi_event snd_rawmidi shpchp snd_page_alloc mei_me mei i915 snd_seq drm_kms_helper drm i2c_algo_bit parport_pc wmi snd_seq_device snd_timer ppdev snd soundcore lp mac_hid parport video mmc_block psmouse e1000e ahci sdhci_pci libahc i ptp sdhci pps_core [ 84.360613] CPU: 2 PID: 1507 Comm: nfsd Tainted: G OX 3.13.0-66-generic #108-Ubuntu [ 84.360643] Hardware name: LENOVO 2355CTO/2355CTO, BIOS G7ET95WW (2.55 ) 07/10/2013 [ 84.360673] task: 880036929800 ti: 880036b7a000 task.ti: 880036b7a000 [ 84.360696] RIP: 0010:[] [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360728] RSP: 0018:880036b7bbc0 EFLAGS: 00010216 [ 84.360743] RAX: RBX: 880035910700 RCX: [ 84.360762] RDX: RSI: 0030 RDI: 88038e23ab00 [ 84.360781] RBP: 880036b7bbf8 R08: R09: 62e59d1a [ 84.360800] R10: R11: 0004 R12: 0008 [ 84.360819] R13: 88038e23ab00 R14: 0028 R15: 88038e23ab00 [ 84.360838] FS: () GS:88043e28() knlGS: [ 84.360859] CS: 0010 DS: ES: CR0: 80050033 [ 84.360874] CR2: 0008 CR3: 000425ea CR4: 001427e0 [ 84.360893] Stack: [ 84.360900] 81616f66 81616fb0 880035910700 880036b7bdf8 [ 84.360924] 0028 88038e23ab00 880036b7bc60 [ 84.360948] 8168b2ec 880426f8c028 880035910770 0002 [ 84.360972] Call Trace: [ 84.360984] [] ? skb_checksum+0x26/0x30 [ 84.361005] [] ? skb_push+0x40/0x40 [ 84.361025] [] udp_recvmsg+0x1dc/0x380 [ 84.361046] [] inet_recvmsg+0x6c/0x80 [ 84.361065] [] sock_recvmsg+0x9a/0xd0 [ 84.361087] [] ? del_timer_sync+0x4a/0x60 [ 84.361106] [] ? schedule_timeout+0x17d/0x2d0 [ 84.361126] [] kernel_recvmsg+0x3a/0x50 [ 84.361164] [] svc_udp_recvfrom+0x89/0x440 [sunrpc] [ 84.361185] [] ? _raw_spin_unlock_bh+0x1b/0x40 [ 84.361211] [] ? svc_get_next_xprt+0xd8/0x310 [sunrpc] [ 84.361237] [] svc_recv+0x4a0/0x5c0 [sunrpc] [ 84.361255] [] ? recalc_sigpending+0x1b/0x50 [ 84.361276] [] nfsd+0xad/0x130 [nfsd] [ 84.361295] [] ? nfsd_destroy+0x80/0x80 [nfsd] [ 84.361313] [] kthread+0xd2/0xf0 [ 84.361328] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361346] [] ret_from_fork+0x58/0x90 [ 84.361362] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361383] Code: 44 00 00 55 31 c0 48 89 e5 41 57 41 56 41 55 49 89 fd 41 54 41 89 f4 53 48 83 ec 10 8b 77 68 41 89 f6 45 29 e6 0f 84 89 00 00 00 <48> 8b 42 08 48 89 d3 48 85 c0 75 14 0f 1f 80 00 00 00 00 48 83 [ 84.361514] RIP [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.361546] RSP [ 84.361557] CR2: 0008 [ 84.366322] ---[ end trace f8aceef52c8aecd1 ]---
[Kernel-packages] [Bug 1508657] Re: NULL pointer dereference in kernel in response to NFS traffic
*** This bug is a duplicate of bug 1508510 *** https://bugs.launchpad.net/bugs/1508510 ** This bug has been marked a duplicate of bug 1508510 Something in the Kernel crashes when I try to mount via NFS -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1508657 Title: NULL pointer dereference in kernel in response to NFS traffic Status in linux package in Ubuntu: Confirmed Bug description: I have a badly behaving NFS client device(an embedded system mounting it's root filesystem off my Ubuntu development machine) which is causing a NULL pointer dereference in the kernel. After this occurs, the NFS server becomes unresponsive. Sending a SIGKILL to the various NFS daemons does not kill the processes. '/etc/init.d/nfs-kernel- server restart' does not work to restore NFS server functionality. Here is the output of dmesg: [63517.096117] BUG: unable to handle kernel NULL pointer dereference at 0008 [63517.096127] IP: [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [63517.096136] PGD 0 [63517.096140] Oops: [#1] SMP [63517.096144] Modules linked in: nfsv3 rpcsec_gss_krb5 nfsv4 vmnet(OX) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OX) autofs4 rfcomm bnep bluetooth pl2303 joydev usbserial hid_microsoft nfsd auth_rpcgss nfs_acl nfs snd_hda_codec_hdmi lockd sunrpc fscache nls_iso8859_1 hid_generic snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep usbhid x86_pkg_temp_thermal hid intel_powerclamp coretemp mxm_wmi snd_pcm eeepc_wmi asus_wmi sparse_keymap kvm_intel video snd_page_alloc kvm uvcvideo videobuf2_vmalloc videobuf2_memops snd_seq_midi videobuf2_core videodev snd_seq_midi_event crct10dif_pclmul crc32_pclmul snd_rawmidi ghash_clmulni_intel aesni_intel aes_x86_64 lrw snd_seq gf128mul glue_helper ablk_helper cryptd serio_raw snd_seq_device sb_edac snd_timer edac_core mei_me nvidia(POX) mei snd lpc_ich soundcore drm shpchp mac_hid wmi parport_pc ppdev lp parport psmouse r8169 ahci mii libahci [63517.096222] CPU: 0 PID: 1498 Comm: nfsd Tainted: P OX 3.13.0-66-generic #108-Ubuntu [63517.096226] Hardware name: System manufacturer System Product Name/P9X79 LE, BIOS 4608 12/24/2013 [63517.096229] task: 8807ff194800 ti: 88003d996000 task.ti: 88003d996000 [63517.096231] RIP: 0010:[] [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [63517.096237] RSP: 0018:88003d997bc0 EFLAGS: 00010216 [63517.096239] RAX: RBX: 8807e654 RCX: 04f0 [63517.096241] RDX: RSI: 1080 RDI: 8807deab4400 [63517.096243] RBP: 88003d997bf8 R08: R09: 0d03f2fc [63517.096246] R10: 04c0 R11: 0004 R12: 0008 [63517.096248] R13: 8807deab4400 R14: 1078 R15: 8807deab4400 [63517.096251] FS: () GS:88082fc0() knlGS: [63517.096254] CS: 0010 DS: ES: CR0: 80050033 [63517.096256] CR2: 0008 CR3: 02c0e000 CR4: 001407f0 [63517.096258] Stack: [63517.096260] 81616f66 81616fb0 8807e654 88003d997df8 [63517.096266] 1078 8807deab4400 88003d997c60 [63517.096271] 8168b2ec 88003d9ca028 8807e6540070 0002 [63517.096276] Call Trace: [63517.096284] [] ? skb_checksum+0x26/0x30 [63517.096289] [] ? skb_push+0x40/0x40 [63517.096296] [] udp_recvmsg+0x1dc/0x380 [63517.096303] [] inet_recvmsg+0x6c/0x80 [63517.096308] [] sock_recvmsg+0x9a/0xd0 [63517.096314] [] ? del_timer_sync+0x4a/0x60 [63517.096319] [] ? schedule_timeout+0x17d/0x2d0 [63517.096324] [] kernel_recvmsg+0x3a/0x50 [63517.096347] [] svc_udp_recvfrom+0x89/0x440 [sunrpc] [63517.096353] [] ? _raw_spin_unlock_bh+0x1b/0x40 [63517.096375] [] ? svc_get_next_xprt+0xd8/0x310 [sunrpc] [63517.096393] [] svc_recv+0x4a0/0x5c0 [sunrpc] [63517.096404] [] nfsd+0xad/0x130 [nfsd] [63517.096413] [] ? nfsd_destroy+0x80/0x80 [nfsd] [63517.096418] [] kthread+0xd2/0xf0 [63517.096423] [] ? kthread_create_on_node+0x1c0/0x1c0 [63517.096428] [] ret_from_fork+0x58/0x90 [63517.096433] [] ? kthread_create_on_node+0x1c0/0x1c0 [63517.096435] Code: 44 00 00 55 31 c0 48 89 e5 41 57 41 56 41 55 49 89 fd 41 54 41 89 f4 53 48 83 ec 10 8b 77 68 41 89 f6 45 29 e6 0f 84 89 00 00 00 <48> 8b 42 08 48 89 d3 48 85 c0 75 14 0f 1f 80 00 00 00 00 48 83 [63517.096477] RIP [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [63517.096481] RSP [63517.096483] CR2: 0008 [63517.096487] ---[ end trace 15884e761cd443a7 ]--- I understand that my NFS client is probably sending malformed data to the NFS server, but this should *never* *ever* result in a NULL pointer dereference in the kernel. I do
[Kernel-packages] [Bug 1508510] Re: Something in the Kernel crashes when I try to mount via NFS
Yes, this patch solves the issue for me. Mount command works as expected and kernel-log stays quiet. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1508510 Title: Something in the Kernel crashes when I try to mount via NFS Status in linux package in Ubuntu: Confirmed Bug description: I have a vagrant virtual machine that mounts a directory on my computer via NFS, this does not work and the reason seems to be this. My System is using SMP, reverting to the kernel before solves the problem. Broken: Linux paul-ThinkPad-T430s 3.13.0-66-generic Working: Broken: Linux paul-ThinkPad-T430s 3.13.0-65-generic BUG: unable to handle kernel NULL pointer dereference at 0008 [ 84.360198] IP: [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360224] PGD 0 [ 84.360232] Oops: [#1] SMP [ 84.360246] Modules linked in: ctr ccm pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vmw_vsock_vmci_transport vsock vmw_vmci rfcomm bnep arc4 iwldvm mac80211 hid_generic usbhid hid snd_hda_codec_hdmi snd_hda_codec_realtek iwlwifi cfg80211 binfmt_misc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache nls_iso8859_1 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev cdc_mbim cdc_ncm usbnet mii cdc_wdm cdc_acm btusb bluetooth intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev serio_raw snd_hda_intel snd_hda_codec snd_hwdep thinkpad_acpi nvram snd_pcm snd_seq_midi lpc_ich snd_seq_midi_event snd_rawmidi shpchp snd_page_alloc mei_me mei i915 snd_seq drm_kms_helper drm i2c_algo_bit parport_pc wmi snd_seq_device snd_timer ppdev snd soundcore lp mac_hid parport video mmc_block psmouse e1000e ahci sdhci_pci libahc i ptp sdhci pps_core [ 84.360613] CPU: 2 PID: 1507 Comm: nfsd Tainted: G OX 3.13.0-66-generic #108-Ubuntu [ 84.360643] Hardware name: LENOVO 2355CTO/2355CTO, BIOS G7ET95WW (2.55 ) 07/10/2013 [ 84.360673] task: 880036929800 ti: 880036b7a000 task.ti: 880036b7a000 [ 84.360696] RIP: 0010:[] [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360728] RSP: 0018:880036b7bbc0 EFLAGS: 00010216 [ 84.360743] RAX: RBX: 880035910700 RCX: [ 84.360762] RDX: RSI: 0030 RDI: 88038e23ab00 [ 84.360781] RBP: 880036b7bbf8 R08: R09: 62e59d1a [ 84.360800] R10: R11: 0004 R12: 0008 [ 84.360819] R13: 88038e23ab00 R14: 0028 R15: 88038e23ab00 [ 84.360838] FS: () GS:88043e28() knlGS: [ 84.360859] CS: 0010 DS: ES: CR0: 80050033 [ 84.360874] CR2: 0008 CR3: 000425ea CR4: 001427e0 [ 84.360893] Stack: [ 84.360900] 81616f66 81616fb0 880035910700 880036b7bdf8 [ 84.360924] 0028 88038e23ab00 880036b7bc60 [ 84.360948] 8168b2ec 880426f8c028 880035910770 0002 [ 84.360972] Call Trace: [ 84.360984] [] ? skb_checksum+0x26/0x30 [ 84.361005] [] ? skb_push+0x40/0x40 [ 84.361025] [] udp_recvmsg+0x1dc/0x380 [ 84.361046] [] inet_recvmsg+0x6c/0x80 [ 84.361065] [] sock_recvmsg+0x9a/0xd0 [ 84.361087] [] ? del_timer_sync+0x4a/0x60 [ 84.361106] [] ? schedule_timeout+0x17d/0x2d0 [ 84.361126] [] kernel_recvmsg+0x3a/0x50 [ 84.361164] [] svc_udp_recvfrom+0x89/0x440 [sunrpc] [ 84.361185] [] ? _raw_spin_unlock_bh+0x1b/0x40 [ 84.361211] [] ? svc_get_next_xprt+0xd8/0x310 [sunrpc] [ 84.361237] [] svc_recv+0x4a0/0x5c0 [sunrpc] [ 84.361255] [] ? recalc_sigpending+0x1b/0x50 [ 84.361276] [] nfsd+0xad/0x130 [nfsd] [ 84.361295] [] ? nfsd_destroy+0x80/0x80 [nfsd] [ 84.361313] [] kthread+0xd2/0xf0 [ 84.361328] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361346] [] ret_from_fork+0x58/0x90 [ 84.361362] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361383] Code: 44 00 00 55 31 c0 48 89 e5 41 57 41 56 41 55 49 89 fd 41 54 41 89 f4 53 48 83 ec 10 8b 77 68 41 89 f6 45 29 e6 0f 84 89 00 00 00 <48> 8b 42 08 48 89 d3 48 85 c0 75 14 0f 1f 80 00 00 00 00 48 83 [ 84.361514] RIP [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.361546] RSP [ 84.361557] CR2: 0008 [ 84.366322] ---[ end trace f8aceef52c8aecd1 ]--- ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-66-generic 3.13.0-66.108 ProcVersionSignature: Ubuntu 3.13.0-66.108-generic 3.13.11-ckt27 Uname: Linux 3.13.0-66-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.16 Architecture: amd64
[Kernel-packages] [Bug 1508510] Re: Something in the Kernel crashes when I try to mount via NFS
I can confirm this. The same behaviour occurs with the latest utopic-kernel (3.16.0-51). Going back to 3.16.0-50 solves the problem. This happens only when using nfs v3 over UDP like so: mount -o 'vers=3,udp' 192.168.56.1:'/home/andreas/somefolder' /mnt/nfs- somefolder Using NFS v4 and/or TCP works without problem. For vagrant, you can use nfs_udp: false as a workaround, as I described here: https://github.com/mitchellh/vagrant/issues/6423 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1508510 Title: Something in the Kernel crashes when I try to mount via NFS Status in linux package in Ubuntu: Confirmed Bug description: I have a vagrant virtual machine that mounts a directory on my computer via NFS, this does not work and the reason seems to be this. My System is using SMP, reverting to the kernel before solves the problem. Broken: Linux paul-ThinkPad-T430s 3.13.0-66-generic Working: Broken: Linux paul-ThinkPad-T430s 3.13.0-65-generic BUG: unable to handle kernel NULL pointer dereference at 0008 [ 84.360198] IP: [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360224] PGD 0 [ 84.360232] Oops: [#1] SMP [ 84.360246] Modules linked in: ctr ccm pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vmw_vsock_vmci_transport vsock vmw_vmci rfcomm bnep arc4 iwldvm mac80211 hid_generic usbhid hid snd_hda_codec_hdmi snd_hda_codec_realtek iwlwifi cfg80211 binfmt_misc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache nls_iso8859_1 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev cdc_mbim cdc_ncm usbnet mii cdc_wdm cdc_acm btusb bluetooth intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev serio_raw snd_hda_intel snd_hda_codec snd_hwdep thinkpad_acpi nvram snd_pcm snd_seq_midi lpc_ich snd_seq_midi_event snd_rawmidi shpchp snd_page_alloc mei_me mei i915 snd_seq drm_kms_helper drm i2c_algo_bit parport_pc wmi snd_seq_device snd_timer ppdev snd soundcore lp mac_hid parport video mmc_block psmouse e1000e ahci sdhci_pci libahc i ptp sdhci pps_core [ 84.360613] CPU: 2 PID: 1507 Comm: nfsd Tainted: G OX 3.13.0-66-generic #108-Ubuntu [ 84.360643] Hardware name: LENOVO 2355CTO/2355CTO, BIOS G7ET95WW (2.55 ) 07/10/2013 [ 84.360673] task: 880036929800 ti: 880036b7a000 task.ti: 880036b7a000 [ 84.360696] RIP: 0010:[] [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.360728] RSP: 0018:880036b7bbc0 EFLAGS: 00010216 [ 84.360743] RAX: RBX: 880035910700 RCX: [ 84.360762] RDX: RSI: 0030 RDI: 88038e23ab00 [ 84.360781] RBP: 880036b7bbf8 R08: R09: 62e59d1a [ 84.360800] R10: R11: 0004 R12: 0008 [ 84.360819] R13: 88038e23ab00 R14: 0028 R15: 88038e23ab00 [ 84.360838] FS: () GS:88043e28() knlGS: [ 84.360859] CS: 0010 DS: ES: CR0: 80050033 [ 84.360874] CR2: 0008 CR3: 000425ea CR4: 001427e0 [ 84.360893] Stack: [ 84.360900] 81616f66 81616fb0 880035910700 880036b7bdf8 [ 84.360924] 0028 88038e23ab00 880036b7bc60 [ 84.360948] 8168b2ec 880426f8c028 880035910770 0002 [ 84.360972] Call Trace: [ 84.360984] [] ? skb_checksum+0x26/0x30 [ 84.361005] [] ? skb_push+0x40/0x40 [ 84.361025] [] udp_recvmsg+0x1dc/0x380 [ 84.361046] [] inet_recvmsg+0x6c/0x80 [ 84.361065] [] sock_recvmsg+0x9a/0xd0 [ 84.361087] [] ? del_timer_sync+0x4a/0x60 [ 84.361106] [] ? schedule_timeout+0x17d/0x2d0 [ 84.361126] [] kernel_recvmsg+0x3a/0x50 [ 84.361164] [] svc_udp_recvfrom+0x89/0x440 [sunrpc] [ 84.361185] [] ? _raw_spin_unlock_bh+0x1b/0x40 [ 84.361211] [] ? svc_get_next_xprt+0xd8/0x310 [sunrpc] [ 84.361237] [] svc_recv+0x4a0/0x5c0 [sunrpc] [ 84.361255] [] ? recalc_sigpending+0x1b/0x50 [ 84.361276] [] nfsd+0xad/0x130 [nfsd] [ 84.361295] [] ? nfsd_destroy+0x80/0x80 [nfsd] [ 84.361313] [] kthread+0xd2/0xf0 [ 84.361328] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361346] [] ret_from_fork+0x58/0x90 [ 84.361362] [] ? kthread_create_on_node+0x1c0/0x1c0 [ 84.361383] Code: 44 00 00 55 31 c0 48 89 e5 41 57 41 56 41 55 49 89 fd 41 54 41 89 f4 53 48 83 ec 10 8b 77 68 41 89 f6 45 29 e6 0f 84 89 00 00 00 <48> 8b 42 08 48 89 d3 48 85 c0 75 14 0f 1f 80 00 00 00 00 48 83 [ 84.361514] RIP [] skb_copy_and_csum_datagram_iovec+0x2d/0x110 [ 84.361546] RSP [ 84.361557]
