Public bug reported: When running with NFSv4 4.2 home directories with encryption enabled the machine froze hard. Reporting an exception in syslog.
Aug 6 10:16:00 tars kernel: [1058579.764235] ------------[ cut here ]------------ Aug 6 10:16:00 tars kernel: [1058579.764262] virt_to_cache: Object is not a Slab page! Aug 6 10:16:00 tars kernel: [1058579.764296] WARNING: CPU: 3 PID: 0 at mm/slab.h:409 kmem_cache_free+0x237/0x2b0 Aug 6 10:16:00 tars kernel: [1058579.764298] Modules linked in: bluetooth ecdh_generic ecc ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs cpuid veth nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter vhost_net vhost tap xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bpfilter aufs rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache overlay bridge stp llc joydev binfmt_misc uvcvideo v4l2_common videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_usb_audio videodev snd_usbmidi_lib mc intel_rapl_msr nls_iso8859_1 intel_rapl_common isst_if_common skx_edac snd_hda_codec_hdmi nfit x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp snd_hda_codec_generic kvm_intel ledtrig_audio kvm irqbypass snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm Aug 6 10:16:00 tars kernel: [1058579.764378] snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer dell_wmi sparse_keymap dell_smm_hwmon snd dell_smbios video intel_cstate dcdbas mei_me input_leds intel_rapl_perf mei intel_wmi_thunderbolt dell_wmi_descriptor wmi_bmof soundcore serio_raw ioatdma dca nvidia_uvm(POE) mac_hid sch_fq_codel parport_pc sunrpc ppdev lp parport ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid uas usb_storage nvidia_drm(POE) nvidia_modeset(POE) crct10dif_pclmul crc32_pclmul nvidia(POE) ghash_clmulni_intel aesni_intel drm_kms_helper syscopyarea sysfillrect sysimgblt aes_x86_64 fb_sys_fops crypto_simd cryptd drm glue_helper ipmi_devintf ipmi_msghandler e1000e ahci i2c_i801 libahci wmi Aug 6 10:16:00 tars kernel: [1058579.764454] CPU: 3 PID: 0 Comm: swapper/3 Tainted: P OE 5.3.0-62-generic #56-Ubuntu Aug 6 10:16:00 tars kernel: [1058579.764456] Hardware name: Dell Inc. Precision 5820 Tower/0X8DXD, BIOS 1.9.2 01/24/2019 Aug 6 10:16:00 tars kernel: [1058579.764462] RIP: 0010:kmem_cache_free+0x237/0x2b0 Aug 6 10:16:00 tars kernel: [1058579.764466] Code: ff ff ff 80 3d b4 e3 56 01 00 0f 85 39 ff ff ff 48 c7 c6 00 88 25 a0 48 c7 c7 68 cf 55 a0 c6 05 99 e3 56 01 01 e8 44 d3 df ff <0f> 0b e9 18 ff ff ff 48 8b 57 58 49 8b 4f 58 48 c7 c6 10 88 25 a0 Aug 6 10:16:00 tars kernel: [1058579.764469] RSP: 0018:ffff9e04c01d8d28 EFLAGS: 00010282 Aug 6 10:16:00 tars kernel: [1058579.764472] RAX: 0000000000000000 RBX: ffff8e5b8ef53534 RCX: 0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764474] RDX: 0000000000040400 RSI: 00000000000000f6 RDI: 0000000000000300 Aug 6 10:16:00 tars kernel: [1058579.764477] RBP: ffff9e04c01d8d50 R08: ffff8e60ffed7448 R09: 0000000000000004 Aug 6 10:16:00 tars kernel: [1058579.764479] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8e5c0ef53534 Aug 6 10:16:00 tars kernel: [1058579.764481] R13: 0000000000000000 R14: ffff8e60e7f81a10 R15: 0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764484] FS: 0000000000000000(0000) GS:ffff8e60ffec0000(0000) knlGS:0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 6 10:16:00 tars kernel: [1058579.764488] CR2: 00007f8f17c9fe98 CR3: 00000005a600a001 CR4: 00000000003626e0 Aug 6 10:16:00 tars kernel: [1058579.764491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764493] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Aug 6 10:16:00 tars kernel: [1058579.764494] Call Trace: Aug 6 10:16:00 tars kernel: [1058579.764497] <IRQ> Aug 6 10:16:00 tars kernel: [1058579.764509] ? sg_free_table_chained+0x30/0x30 Aug 6 10:16:00 tars kernel: [1058579.764514] mempool_free_slab+0x17/0x20 Aug 6 10:16:00 tars kernel: [1058579.764517] mempool_free+0x2f/0x80 Aug 6 10:16:00 tars kernel: [1058579.764522] sg_pool_free+0x4f/0x60 Aug 6 10:16:00 tars kernel: [1058579.764529] __sg_free_table+0x6f/0x90 Aug 6 10:16:00 tars kernel: [1058579.764534] sg_free_table_chained+0x27/0x30 Aug 6 10:16:00 tars kernel: [1058579.764544] scsi_mq_free_sgtables+0x4b/0x50 Aug 6 10:16:00 tars kernel: [1058579.764549] scsi_mq_uninit_cmd+0x13/0x60 Aug 6 10:16:00 tars kernel: [1058579.764553] scsi_end_request+0x7e/0x160 Aug 6 10:16:00 tars kernel: [1058579.764561] ? ata_qc_complete_multiple+0xbd/0xe0 Aug 6 10:16:00 tars kernel: [1058579.764566] scsi_io_completion+0x7c/0x540 Aug 6 10:16:00 tars kernel: [1058579.764572] scsi_finish_command+0xe7/0x120 Aug 6 10:16:00 tars kernel: [1058579.764577] scsi_softirq_done+0x14a/0x170 Aug 6 10:16:00 tars kernel: [1058579.764583] blk_done_softirq+0x92/0xc0 Aug 6 10:16:00 tars kernel: [1058579.764593] __do_softirq+0xe1/0x2d6 Aug 6 10:16:00 tars kernel: [1058579.764600] irq_exit+0xae/0xb0 Aug 6 10:16:00 tars kernel: [1058579.764604] do_IRQ+0x86/0xe0 Aug 6 10:16:00 tars kernel: [1058579.764607] common_interrupt+0xf/0xf Aug 6 10:16:00 tars kernel: [1058579.764609] </IRQ> Aug 6 10:16:00 tars kernel: [1058579.764614] RIP: 0010:cpuidle_enter_state+0xc5/0x420 Aug 6 10:16:00 tars kernel: [1058579.764618] Code: ff e8 ff 1b 83 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 3d 03 00 00 31 ff e8 42 7e 89 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 89 d1 01 00 00 41 c7 44 24 10 00 00 00 00 48 83 c4 18 Aug 6 10:16:00 tars kernel: [1058579.764620] RSP: 0018:ffff9e04c0113e38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffdd Aug 6 10:16:00 tars kernel: [1058579.764623] RAX: ffff8e60ffeea780 RBX: ffffffffa095a6a0 RCX: 000000000000001f Aug 6 10:16:00 tars kernel: [1058579.764625] RDX: 0000000000000000 RSI: 00000000238e311f RDI: 0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764627] RBP: ffff9e04c0113e78 R08: 0003c2c5ceceaec0 R09: 0003c2c5d8c45b73 Aug 6 10:16:00 tars kernel: [1058579.764630] R10: ffff8e60ffee9524 R11: ffff8e60ffee9504 R12: ffffbe04bfcc2540 Aug 6 10:16:00 tars kernel: [1058579.764632] R13: 0000000000000003 R14: 0000000000000003 R15: ffffbe04bfcc2540 Aug 6 10:16:00 tars kernel: [1058579.764639] ? cpuidle_enter_state+0xa1/0x420 Aug 6 10:16:00 tars kernel: [1058579.764643] cpuidle_enter+0x2e/0x40 Aug 6 10:16:00 tars kernel: [1058579.764648] call_cpuidle+0x23/0x40 Aug 6 10:16:00 tars kernel: [1058579.764651] do_idle+0x1dd/0x270 Aug 6 10:16:00 tars kernel: [1058579.764656] cpu_startup_entry+0x20/0x30 Aug 6 10:16:00 tars kernel: [1058579.764662] start_secondary+0x168/0x1c0 Aug 6 10:16:00 tars kernel: [1058579.764669] secondary_startup_64+0xa4/0xb0 Aug 6 10:16:00 tars kernel: [1058579.764674] ---[ end trace d4891248dae64792 ]--- The machine is refusing to submit the details files but I will work on that. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-64-generic 5.3.0-64.58 ProcVersionSignature: Ubuntu 5.3.0-64.58-generic 5.3.18 Uname: Linux 5.3.0-64-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu8.8 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-id', '/dev/snd/controlC2', '/dev/snd/pcmC2D0c', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D9p', '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Thu Aug 6 12:20:07 2020 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-xenial-amd64-20160624-2 InstallationDate: Installed on 2018-04-20 (838 days ago) InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47 MachineType: Dell Inc. Precision 5820 Tower ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-64-generic root=UUID=99152a25-de11-4348-8a2b-45743a6b7e95 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.3.0-64-generic N/A linux-backports-modules-5.3.0-64-generic N/A linux-firmware 1.183.3 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to eoan on 2019-11-25 (255 days ago) dmi.bios.date: 01/24/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.9.2 dmi.board.name: 0X8DXD dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.9.2:bd01/24/2019:svnDellInc.:pnPrecision5820Tower:pvr:rvnDellInc.:rn0X8DXD:rvrA00:cvnDellInc.:ct3:cvr: dmi.product.family: Precision dmi.product.name: Precision 5820 Tower dmi.product.sku: 0738 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug eoan -- 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/1890634 Title: NFS Home Directories Status in linux package in Ubuntu: Confirmed Bug description: When running with NFSv4 4.2 home directories with encryption enabled the machine froze hard. Reporting an exception in syslog. Aug 6 10:16:00 tars kernel: [1058579.764235] ------------[ cut here ]------------ Aug 6 10:16:00 tars kernel: [1058579.764262] virt_to_cache: Object is not a Slab page! Aug 6 10:16:00 tars kernel: [1058579.764296] WARNING: CPU: 3 PID: 0 at mm/slab.h:409 kmem_cache_free+0x237/0x2b0 Aug 6 10:16:00 tars kernel: [1058579.764298] Modules linked in: bluetooth ecdh_generic ecc ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs cpuid veth nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter vhost_net vhost tap xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bpfilter aufs rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache overlay bridge stp llc joydev binfmt_misc uvcvideo v4l2_common videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_usb_audio videodev snd_usbmidi_lib mc intel_rapl_msr nls_iso8859_1 intel_rapl_common isst_if_common skx_edac snd_hda_codec_hdmi nfit x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp snd_hda_codec_generic kvm_intel ledtrig_audio kvm irqbypass snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm Aug 6 10:16:00 tars kernel: [1058579.764378] snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer dell_wmi sparse_keymap dell_smm_hwmon snd dell_smbios video intel_cstate dcdbas mei_me input_leds intel_rapl_perf mei intel_wmi_thunderbolt dell_wmi_descriptor wmi_bmof soundcore serio_raw ioatdma dca nvidia_uvm(POE) mac_hid sch_fq_codel parport_pc sunrpc ppdev lp parport ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid uas usb_storage nvidia_drm(POE) nvidia_modeset(POE) crct10dif_pclmul crc32_pclmul nvidia(POE) ghash_clmulni_intel aesni_intel drm_kms_helper syscopyarea sysfillrect sysimgblt aes_x86_64 fb_sys_fops crypto_simd cryptd drm glue_helper ipmi_devintf ipmi_msghandler e1000e ahci i2c_i801 libahci wmi Aug 6 10:16:00 tars kernel: [1058579.764454] CPU: 3 PID: 0 Comm: swapper/3 Tainted: P OE 5.3.0-62-generic #56-Ubuntu Aug 6 10:16:00 tars kernel: [1058579.764456] Hardware name: Dell Inc. Precision 5820 Tower/0X8DXD, BIOS 1.9.2 01/24/2019 Aug 6 10:16:00 tars kernel: [1058579.764462] RIP: 0010:kmem_cache_free+0x237/0x2b0 Aug 6 10:16:00 tars kernel: [1058579.764466] Code: ff ff ff 80 3d b4 e3 56 01 00 0f 85 39 ff ff ff 48 c7 c6 00 88 25 a0 48 c7 c7 68 cf 55 a0 c6 05 99 e3 56 01 01 e8 44 d3 df ff <0f> 0b e9 18 ff ff ff 48 8b 57 58 49 8b 4f 58 48 c7 c6 10 88 25 a0 Aug 6 10:16:00 tars kernel: [1058579.764469] RSP: 0018:ffff9e04c01d8d28 EFLAGS: 00010282 Aug 6 10:16:00 tars kernel: [1058579.764472] RAX: 0000000000000000 RBX: ffff8e5b8ef53534 RCX: 0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764474] RDX: 0000000000040400 RSI: 00000000000000f6 RDI: 0000000000000300 Aug 6 10:16:00 tars kernel: [1058579.764477] RBP: ffff9e04c01d8d50 R08: ffff8e60ffed7448 R09: 0000000000000004 Aug 6 10:16:00 tars kernel: [1058579.764479] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8e5c0ef53534 Aug 6 10:16:00 tars kernel: [1058579.764481] R13: 0000000000000000 R14: ffff8e60e7f81a10 R15: 0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764484] FS: 0000000000000000(0000) GS:ffff8e60ffec0000(0000) knlGS:0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764486] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 6 10:16:00 tars kernel: [1058579.764488] CR2: 00007f8f17c9fe98 CR3: 00000005a600a001 CR4: 00000000003626e0 Aug 6 10:16:00 tars kernel: [1058579.764491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764493] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Aug 6 10:16:00 tars kernel: [1058579.764494] Call Trace: Aug 6 10:16:00 tars kernel: [1058579.764497] <IRQ> Aug 6 10:16:00 tars kernel: [1058579.764509] ? sg_free_table_chained+0x30/0x30 Aug 6 10:16:00 tars kernel: [1058579.764514] mempool_free_slab+0x17/0x20 Aug 6 10:16:00 tars kernel: [1058579.764517] mempool_free+0x2f/0x80 Aug 6 10:16:00 tars kernel: [1058579.764522] sg_pool_free+0x4f/0x60 Aug 6 10:16:00 tars kernel: [1058579.764529] __sg_free_table+0x6f/0x90 Aug 6 10:16:00 tars kernel: [1058579.764534] sg_free_table_chained+0x27/0x30 Aug 6 10:16:00 tars kernel: [1058579.764544] scsi_mq_free_sgtables+0x4b/0x50 Aug 6 10:16:00 tars kernel: [1058579.764549] scsi_mq_uninit_cmd+0x13/0x60 Aug 6 10:16:00 tars kernel: [1058579.764553] scsi_end_request+0x7e/0x160 Aug 6 10:16:00 tars kernel: [1058579.764561] ? ata_qc_complete_multiple+0xbd/0xe0 Aug 6 10:16:00 tars kernel: [1058579.764566] scsi_io_completion+0x7c/0x540 Aug 6 10:16:00 tars kernel: [1058579.764572] scsi_finish_command+0xe7/0x120 Aug 6 10:16:00 tars kernel: [1058579.764577] scsi_softirq_done+0x14a/0x170 Aug 6 10:16:00 tars kernel: [1058579.764583] blk_done_softirq+0x92/0xc0 Aug 6 10:16:00 tars kernel: [1058579.764593] __do_softirq+0xe1/0x2d6 Aug 6 10:16:00 tars kernel: [1058579.764600] irq_exit+0xae/0xb0 Aug 6 10:16:00 tars kernel: [1058579.764604] do_IRQ+0x86/0xe0 Aug 6 10:16:00 tars kernel: [1058579.764607] common_interrupt+0xf/0xf Aug 6 10:16:00 tars kernel: [1058579.764609] </IRQ> Aug 6 10:16:00 tars kernel: [1058579.764614] RIP: 0010:cpuidle_enter_state+0xc5/0x420 Aug 6 10:16:00 tars kernel: [1058579.764618] Code: ff e8 ff 1b 83 ff 80 7d c7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 3d 03 00 00 31 ff e8 42 7e 89 ff fb 66 0f 1f 44 00 00 <45> 85 ed 0f 89 d1 01 00 00 41 c7 44 24 10 00 00 00 00 48 83 c4 18 Aug 6 10:16:00 tars kernel: [1058579.764620] RSP: 0018:ffff9e04c0113e38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffdd Aug 6 10:16:00 tars kernel: [1058579.764623] RAX: ffff8e60ffeea780 RBX: ffffffffa095a6a0 RCX: 000000000000001f Aug 6 10:16:00 tars kernel: [1058579.764625] RDX: 0000000000000000 RSI: 00000000238e311f RDI: 0000000000000000 Aug 6 10:16:00 tars kernel: [1058579.764627] RBP: ffff9e04c0113e78 R08: 0003c2c5ceceaec0 R09: 0003c2c5d8c45b73 Aug 6 10:16:00 tars kernel: [1058579.764630] R10: ffff8e60ffee9524 R11: ffff8e60ffee9504 R12: ffffbe04bfcc2540 Aug 6 10:16:00 tars kernel: [1058579.764632] R13: 0000000000000003 R14: 0000000000000003 R15: ffffbe04bfcc2540 Aug 6 10:16:00 tars kernel: [1058579.764639] ? cpuidle_enter_state+0xa1/0x420 Aug 6 10:16:00 tars kernel: [1058579.764643] cpuidle_enter+0x2e/0x40 Aug 6 10:16:00 tars kernel: [1058579.764648] call_cpuidle+0x23/0x40 Aug 6 10:16:00 tars kernel: [1058579.764651] do_idle+0x1dd/0x270 Aug 6 10:16:00 tars kernel: [1058579.764656] cpu_startup_entry+0x20/0x30 Aug 6 10:16:00 tars kernel: [1058579.764662] start_secondary+0x168/0x1c0 Aug 6 10:16:00 tars kernel: [1058579.764669] secondary_startup_64+0xa4/0xb0 Aug 6 10:16:00 tars kernel: [1058579.764674] ---[ end trace d4891248dae64792 ]--- The machine is refusing to submit the details files but I will work on that. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-64-generic 5.3.0-64.58 ProcVersionSignature: Ubuntu 5.3.0-64.58-generic 5.3.18 Uname: Linux 5.3.0-64-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu8.8 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-id', '/dev/snd/controlC2', '/dev/snd/pcmC2D0c', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D9p', '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Thu Aug 6 12:20:07 2020 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-xenial-amd64-20160624-2 InstallationDate: Installed on 2018-04-20 (838 days ago) InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47 MachineType: Dell Inc. Precision 5820 Tower ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-64-generic root=UUID=99152a25-de11-4348-8a2b-45743a6b7e95 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.3.0-64-generic N/A linux-backports-modules-5.3.0-64-generic N/A linux-firmware 1.183.3 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to eoan on 2019-11-25 (255 days ago) dmi.bios.date: 01/24/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.9.2 dmi.board.name: 0X8DXD dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.9.2:bd01/24/2019:svnDellInc.:pnPrecision5820Tower:pvr:rvnDellInc.:rn0X8DXD:rvrA00:cvnDellInc.:ct3:cvr: dmi.product.family: Precision dmi.product.name: Precision 5820 Tower dmi.product.sku: 0738 dmi.sys.vendor: Dell Inc. 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