According to [1] it's fixed in newer kernel version. Please try it out. [1] https://bugzilla.samba.org/show_bug.cgi?id=13647
-- 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/1811723 Title: Samba client freeze during write when using higher than vers=1.0 Status in linux package in Ubuntu: Confirmed Bug description: Hello, My issue is that whenever I try to write new files (copy or move) to my file server something in the samba client freezes and I can't do anything samba until the system is rebooted. To get write access I mount with uid ie "sudo mount //server/share /mountpoint -o user=write,uid=1000". Using this command the server and client negotiates smb protocol version 3.02. When this happens the server is still happily serving files to other machines. If I just read files everything works fine. If I connect from a windows client there is no issue. If I add "vers=1.0" everything works but transfers are really slow. Specifying version 3 produces a fail. Trying the same operation (different hw) with Mint 18 Mate produces the same fault. Trying the same operation (with "vers=3.0" set) using SuSE Leap 15.0 KDE live everything works as expected. Both client and server are running fully updated, as of posting, bionic. Using 'dmesg -w' too see what's going on I can see that there is a general protection fault somehow related to cifsd. I am however unable to tell if it is relevant to my issue, from kern.log: Jan 9 21:03:49 ubnu kernel: [ 410.357213] general protection fault: 0000 [#1] SMP PTI Jan 9 21:03:49 ubnu kernel: [ 410.357224] Modules linked in: cmac arc4 md4 nls_utf8 cifs ccm fscache rfcomm pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) thunderbolt bnep binfmt_misc nls_iso8859_1 snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc snd_hda_ext_core snd_soc_sst_dsp snd_soc_sst_ipc snd_hda_codec_realtek snd_soc_acpi snd_hda_codec_generic snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel intel_rapl btusb x86_pkg_temp_thermal intel_powerclamp btrtl coretemp joydev btbcm snd_hda_codec kvm_intel input_leds kvm irqbypass btintel crct10dif_pclmul crc32_pclmul snd_hda_core ghash_clmulni_intel pcbc snd_hwdep snd_pcm bluetooth ecdh_generic snd_seq_midi snd_seq_midi_event aesni_intel snd_rawmidi aes_x86_64 crypto_simd glue_helper cryptd intel_cstate intel_rapl_perf snd_seq rtsx_pci_ms snd_seq_device Jan 9 21:03:49 ubnu kernel: [ 410.357357] wmi_bmof snd_timer memstick intel_wmi_thunderbolt snd shpchp soundcore mei_me mei intel_pch_thermal acpi_pad mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 xfs libcrc32c hid_generic usbhid hid rtsx_pci_sdmmc i915 e1000e i2c_algo_bit drm_kms_helper ptp syscopyarea pps_core i2c_i801 sysfillrect sysimgblt rtsx_pci fb_sys_fops drm ahci libahci wmi video Jan 9 21:03:49 ubnu kernel: [ 410.357447] CPU: 2 PID: 1822 Comm: cifsd Tainted: G OE 4.15.0-43-generic #46-Ubuntu Jan 9 21:03:49 ubnu kernel: [ 410.357453] Hardware name: /NUC7i3BNB, BIOS BNKBL357.86A.0069.2018.0920.1250 09/20/2018 Jan 9 21:03:49 ubnu kernel: [ 410.357468] RIP: 0010:prefetch_freepointer+0x15/0x30 Jan 9 21:03:49 ubnu kernel: [ 410.357474] RSP: 0018:ffffb16201ae3da0 EFLAGS: 00010282 Jan 9 21:03:49 ubnu kernel: [ 410.357482] RAX: 0000000000000000 RBX: e90527c744fff71a RCX: 0000000000003ea9 Jan 9 21:03:49 ubnu kernel: [ 410.357488] RDX: 0000000000003ea8 RSI: e90527c744fff71a RDI: ffff9d7079255080 Jan 9 21:03:49 ubnu kernel: [ 410.357494] RBP: ffffb16201ae3da0 R08: ffff9d707ed2b650 R09: ffffb16201ae3db0 Jan 9 21:03:49 ubnu kernel: [ 410.357499] R10: ffffb16201ae3de8 R11: 0000000000000000 R12: 0000000001011200 Jan 9 21:03:49 ubnu kernel: [ 410.357505] R13: ffff9d7079255080 R14: ffff9d7016478c40 R15: ffff9d7079255080 Jan 9 21:03:49 ubnu kernel: [ 410.357512] FS: 0000000000000000(0000) GS:ffff9d707ed00000(0000) knlGS:0000000000000000 Jan 9 21:03:49 ubnu kernel: [ 410.357519] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 9 21:03:49 ubnu kernel: [ 410.357525] CR2: 00007f0a2802d028 CR3: 000000003760a006 CR4: 00000000003606e0 Jan 9 21:03:49 ubnu kernel: [ 410.357530] Call Trace: Jan 9 21:03:49 ubnu kernel: [ 410.357545] kmem_cache_alloc+0xa2/0x1b0 Jan 9 21:03:49 ubnu kernel: [ 410.357558] ? mempool_alloc_slab+0x15/0x20 Jan 9 21:03:49 ubnu kernel: [ 410.357570] ? wait_woken+0x80/0x80 Jan 9 21:03:49 ubnu kernel: [ 410.357580] mempool_alloc_slab+0x15/0x20 Jan 9 21:03:49 ubnu kernel: [ 410.357590] mempool_alloc+0x71/0x190 Jan 9 21:03:49 ubnu kernel: [ 410.357660] ? smb2_add_credits+0xb0/0x250 [cifs] Jan 9 21:03:49 ubnu kernel: [ 410.357709] cifs_small_buf_get+0x1a/0x30 [cifs] Jan 9 21:03:49 ubnu kernel: [ 410.357751] cifs_demultiplex_thread+0x5c7/0xaf0 [cifs] Jan 9 21:03:49 ubnu kernel: [ 410.357762] ? __schedule+0x299/0x8a0 Jan 9 21:03:49 ubnu kernel: [ 410.357777] kthread+0x121/0x140 Jan 9 21:03:49 ubnu kernel: [ 410.357815] ? cifs_handle_standard+0x190/0x190 [cifs] Jan 9 21:03:49 ubnu kernel: [ 410.357827] ? kthread_create_worker_on_cpu+0x70/0x70 Jan 9 21:03:49 ubnu kernel: [ 410.357838] ? do_syscall_64+0x73/0x130 Jan 9 21:03:49 ubnu kernel: [ 410.357847] ? SyS_exit_group+0x14/0x20 Jan 9 21:03:49 ubnu kernel: [ 410.357859] ret_from_fork+0x35/0x40 Jan 9 21:03:49 ubnu kernel: [ 410.357866] Code: eb bb 49 8b 74 24 60 48 c7 c7 30 cd 0e a5 e8 93 b9 ea ff eb 90 90 0f 1f 44 00 00 55 48 85 f6 48 89 e5 74 14 48 63 47 20 48 01 c6 <48> 33 36 48 33 b7 40 01 00 00 0f 18 0e 5d c3 66 90 66 2e 0f 1f Jan 9 21:03:49 ubnu kernel: [ 410.357991] RIP: prefetch_freepointer+0x15/0x30 RSP: ffffb16201ae3da0 Jan 9 21:03:49 ubnu kernel: [ 410.358063] ---[ end trace 9fca55019e520b64 ]--- --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jerker 1682 F.... pulseaudio /dev/snd/pcmC1D0p: jerker 1682 F...m pulseaudio /dev/snd/controlC1: jerker 1682 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=76d6812e-d205-4c26-8186-69b8beb57759 InstallationDate: Installed on 2018-11-14 (197 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) IwConfig: eno1 no wireless extensions. lo no wireless extensions. Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-50-generic root=UUID=38dfd8d3-c78d-4d3b-8b98-1feb616865fa ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-50.54-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-50-generic N/A linux-backports-modules-4.15.0-50-generic N/A linux-firmware 1.173.6 RfKill: 0: hci0: Bluetooth Soft blocked: yes Hard blocked: no Tags: bionic wayland-session Uname: Linux 4.15.0-50-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/16/2019 dmi.bios.vendor: Intel Corp. dmi.bios.version: BNKBL357.86A.0079.2019.0516.1758 dmi.board.name: NUC7i3BNB dmi.board.vendor: Intel Corporation dmi.board.version: J22859-303 dmi.chassis.type: 3 dmi.modalias: dmi:bvnIntelCorp.:bvrBNKBL357.86A.0079.2019.0516.1758:bd05/16/2019:svn:pn:pvr:rvnIntelCorporation:rnNUC7i3BNB:rvrJ22859-303:cvn:ct3:cvr: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1811723/+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
