Have same issue: [ 2538.464378] INFO: task kcompactd0:27 blocked for more than 120 seconds. [ 2538.466729] Not tainted 4.15.0-122-generic #124-Ubuntu [ 2538.468652] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2538.471451] kcompactd0 D 0 27 2 0x80000000 [ 2538.471453] Call Trace: [ 2538.471462] __schedule+0x24e/0x880 [ 2538.471464] schedule+0x2c/0x80 [ 2538.471466] io_schedule+0x16/0x40 [ 2538.471468] __lock_page+0xff/0x140 [ 2538.471472] ? page_cache_tree_insert+0xe0/0xe0 [ 2538.471476] migrate_pages+0x91f/0xb80 [ 2538.471479] ? __ClearPageMovable+0x10/0x10 [ 2538.471482] ? isolate_freepages_block+0x3b0/0x3b0 [ 2538.471484] compact_zone+0x681/0x950 [ 2538.471486] kcompactd_do_work+0xfe/0x2a0 [ 2538.471489] ? __switch_to_asm+0x35/0x70 [ 2538.471491] ? __switch_to_asm+0x41/0x70 [ 2538.471494] kcompactd+0x86/0x1c0 [ 2538.471495] ? kcompactd+0x86/0x1c0 [ 2538.471499] ? wait_woken+0x80/0x80 [ 2538.471502] kthread+0x121/0x140 [ 2538.471504] ? kcompactd_do_work+0x2a0/0x2a0 [ 2538.471506] ? kthread_create_worker_on_cpu+0x70/0x70 [ 2538.471508] ret_from_fork+0x35/0x40
Kernel: 4.15.120 few days before it was hanging inside btrfs: [12688.280246] INFO: task btrfs-transacti:597 blocked for more than 120 seconds. [12688.285589] Not tainted 4.15.0-122-generic #124-Ubuntu [12688.292217] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [12688.305038] btrfs-transacti D 0 597 2 0x80000000 [12688.305042] Call Trace: [12688.305054] __schedule+0x24e/0x880 [12688.305058] ? bit_wait+0x60/0x60 [12688.305059] schedule+0x2c/0x80 [12688.305061] io_schedule+0x16/0x40 [12688.305063] bit_wait_io+0x11/0x60 [12688.305065] __wait_on_bit+0x4c/0x90 [12688.305067] ? bit_wait+0x60/0x60 [12688.305068] out_of_line_wait_on_bit+0x90/0xb0 [12688.305075] ? bit_waitqueue+0x40/0x40 [12688.305116] lock_extent_buffer_for_io+0x100/0x2a0 [btrfs] [12688.305136] btree_write_cache_pages+0x1b8/0x420 [btrfs] [12688.305153] btree_writepages+0x5d/0x70 [btrfs] [12688.305156] do_writepages+0x4b/0xe0 [12688.305174] ? free_extent_state+0x48/0xc0 [btrfs] [12688.305188] ? merge_state.part.47+0x44/0x130 [btrfs] [12688.305191] __filemap_fdatawrite_range+0xcf/0x100 [12688.305193] ? __filemap_fdatawrite_range+0xcf/0x100 [12688.305195] filemap_fdatawrite_range+0x13/0x20 [12688.305211] btrfs_write_marked_extents+0x68/0x140 [btrfs] [12688.305226] btrfs_write_and_wait_marked_extents.constprop.20+0x4f/0x90 [btrfs] [12688.305241] btrfs_commit_transaction+0x696/0x910 [btrfs] [12688.305255] ? btrfs_commit_transaction+0x696/0x910 [btrfs] [12688.305268] ? start_transaction+0x191/0x430 [btrfs] [12688.305283] transaction_kthread+0x18d/0x1b0 [btrfs] [12688.305286] kthread+0x121/0x140 [12688.305300] ? btrfs_cleanup_transaction+0x570/0x570 [btrfs] [12688.305302] ? kthread_create_worker_on_cpu+0x70/0x70 [12688.305305] ret_from_fork+0x35/0x40 [12688.305320] INFO: task postgres:1121 blocked for more than 120 seconds. [12688.311393] Not tainted 4.15.0-122-generic #124-Ubuntu [12688.314307] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [12688.326485] postgres D 0 1121 1101 0x00000000 [12688.326490] Call Trace: [12688.326502] __schedule+0x24e/0x880 [12688.326509] ? lookup_fast+0xcc/0x320 [12688.326512] schedule+0x2c/0x80 [12688.326516] schedule_preempt_disabled+0xe/0x10 [12688.326518] __mutex_lock.isra.5+0x276/0x4e0 [12688.326522] ? find_get_pages_range_tag+0x151/0x270 [12688.326524] __mutex_lock_slowpath+0x13/0x20 [12688.326526] ? __mutex_lock_slowpath+0x13/0x20 [12688.326528] mutex_lock+0x2f/0x40 [12688.326583] btrfs_log_inode_parent+0x17a/0xa80 [btrfs] [12688.326585] ? __filemap_fdatawait_range+0x95/0x170 [12688.326587] ? __filemap_fdatawrite_range+0x50/0x100 [12688.326606] ? wait_current_trans+0x33/0x110 [btrfs] [12688.326608] ? _cond_resched+0x19/0x40 [12688.326623] ? join_transaction+0x27/0x420 [btrfs] [12688.326641] btrfs_log_dentry_safe+0x60/0x80 [btrfs] [12688.326659] btrfs_sync_file+0x375/0x530 [btrfs] [12688.326667] vfs_fsync_range+0x51/0xb0 [12688.326670] do_fsync+0x3d/0x70 [12688.326672] SyS_fsync+0x10/0x20 [12688.326677] do_syscall_64+0x73/0x130 [12688.326681] entry_SYSCALL_64_after_hwframe+0x41/0xa6 [12688.326683] RIP: 0033:0x7f2f790e5af1 [12688.326684] RSP: 002b:00007fffb2bbb6f8 EFLAGS: 00000246 ORIG_RAX: 000000000000004a [12688.326686] RAX: ffffffffffffffda RBX: 0000564356da18f0 RCX: 00007f2f790e5af1 [12688.326687] RDX: 00007f2f6e9d26a0 RSI: 000000000a00000e RDI: 0000000000000044 [12688.326688] RBP: 00007fffb2bbb710 R08: 00007fffb2bd2000 R09: 00000c80c0ae158d [12688.326689] R10: 00007fffb2bbb700 R11: 0000000000000246 R12: 000000000a00000e [12688.326690] R13: 0000000000000008 R14: 0000564356d93db0 R15: 0000564356d83bb8 [19487.948941] SGI XFS with ACLs, security attributes, realtime, no debug enabled can upload kernel dump. Workload was postgres. It repeasts everyday. wasn't able to reproduce only when postgres autovacuum was working. I'm executing query to copy 130 GiB data from one table to another. ** Attachment added: "dump.202010251058" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891773/+attachment/5426901/+files/dump.202010251058 -- 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/1891773 Title: kcompactd0 and btrfs-transaction keep deadlocking with each other Status in linux package in Ubuntu: Confirmed Bug description: Example 1: [346911.187920] INFO: task kcompactd0:53 blocked for more than 120 seconds. [346911.187938] Not tainted 4.15.0-112-generic #113-Ubuntu [346911.187951] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [346911.187968] kcompactd0 D 0 53 2 0x80000000 [346911.187969] Call Trace: [346911.187973] __schedule+0x24e/0x880 [346911.187986] ? btree_releasepage+0x42/0x50 [btrfs] [346911.187987] schedule+0x2c/0x80 [346911.187988] io_schedule+0x16/0x40 [346911.187989] __lock_page+0xff/0x140 [346911.187990] ? page_cache_tree_insert+0xe0/0xe0 [346911.187992] migrate_pages+0x91f/0xb80 [346911.187993] ? __ClearPageMovable+0x10/0x10 [346911.187994] ? isolate_freepages_block+0x3b0/0x3b0 [346911.187995] compact_zone+0x681/0x950 [346911.187995] kcompactd_do_work+0xfe/0x2a0 [346911.187996] ? __switch_to_asm+0x35/0x70 [346911.187997] ? __switch_to_asm+0x41/0x70 [346911.187998] kcompactd+0x86/0x1c0 [346911.187999] ? kcompactd+0x86/0x1c0 [346911.188001] ? wait_woken+0x80/0x80 [346911.188002] kthread+0x121/0x140 [346911.188003] ? kcompactd_do_work+0x2a0/0x2a0 [346911.188003] ? kthread_create_worker_on_cpu+0x70/0x70 [346911.188004] ret_from_fork+0x35/0x40 [346911.188015] INFO: task btrfs-transacti:858 blocked for more than 120 seconds. [346911.188031] Not tainted 4.15.0-112-generic #113-Ubuntu [346911.188043] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [346911.188060] btrfs-transacti D 0 858 2 0x80000000 [346911.188061] Call Trace: [346911.188062] __schedule+0x24e/0x880 [346911.188063] ? bit_wait+0x60/0x60 [346911.188063] schedule+0x2c/0x80 [346911.188064] io_schedule+0x16/0x40 [346911.188065] bit_wait_io+0x11/0x60 [346911.188066] __wait_on_bit+0x4c/0x90 [346911.188066] ? bit_wait+0x60/0x60 [346911.188067] out_of_line_wait_on_bit+0x90/0xb0 [346911.188068] ? bit_waitqueue+0x40/0x40 [346911.188080] lock_extent_buffer_for_io+0x100/0x2a0 [btrfs] [346911.188090] btree_write_cache_pages+0x1b8/0x420 [btrfs] [346911.188092] ? native_sched_clock_from_tsc+0x30/0x70 [346911.188092] ? update_load_avg+0x423/0x780 [346911.188101] btree_writepages+0x5d/0x70 [btrfs] [346911.188102] do_writepages+0x4b/0xe0 [346911.188102] ? enqueue_task_fair+0xb6/0x300 [346911.188111] ? merge_state.part.47+0x44/0x130 [btrfs] [346911.188112] __filemap_fdatawrite_range+0xcf/0x100 [346911.188113] ? __filemap_fdatawrite_range+0xcf/0x100 [346911.188114] filemap_fdatawrite_range+0x13/0x20 [346911.188122] btrfs_write_marked_extents+0x68/0x140 [btrfs] [346911.188129] btrfs_write_and_wait_marked_extents.constprop.20+0x4f/0x90 [btrfs] [346911.188136] btrfs_commit_transaction+0x696/0x910 [btrfs] [346911.188143] ? btrfs_commit_transaction+0x696/0x910 [btrfs] [346911.188144] ? wait_woken+0x80/0x80 [346911.188151] transaction_kthread+0x18d/0x1b0 [btrfs] [346911.188152] kthread+0x121/0x140 [346911.188158] ? btrfs_cleanup_transaction+0x570/0x570 [btrfs] [346911.188159] ? kthread_create_worker_on_cpu+0x70/0x70 [346911.188160] ret_from_fork+0x35/0x40 Example 2: 2020-08-11T20:23:03.533+01:00 <err> kernel: INFO: task kcompactd0:53 blocked for more than 120 seconds. 2020-08-11T20:23:03.533+01:00 <err> kernel: Not tainted 4.15.0-112-generic #113-Ubuntu 2020-08-11T20:23:03.533+01:00 <err> kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 2020-08-11T20:23:03.533+01:00 <info> kernel: kcompactd0 D 0 53 2 0x80000000 2020-08-11T20:23:03.533+01:00 <warning> kernel: Call Trace: 2020-08-11T20:23:03.533+01:00 <warning> kernel: __schedule+0x24e/0x880 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? btree_releasepage+0x42/0x50 [btrfs] 2020-08-11T20:23:03.533+01:00 <warning> kernel: schedule+0x2c/0x80 2020-08-11T20:23:03.533+01:00 <warning> kernel: io_schedule+0x16/0x40 2020-08-11T20:23:03.533+01:00 <warning> kernel: __lock_page+0xff/0x140 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? page_cache_tree_insert+0xe0/0xe0 2020-08-11T20:23:03.533+01:00 <warning> kernel: migrate_pages+0x91f/0xb80 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? __ClearPageMovable+0x10/0x10 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? isolate_freepages_block+0x3b0/0x3b0 2020-08-11T20:23:03.533+01:00 <warning> kernel: compact_zone+0x681/0x950 2020-08-11T20:23:03.533+01:00 <warning> kernel: kcompactd_do_work+0xfe/0x2a0 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? __switch_to_asm+0x35/0x70 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? __switch_to_asm+0x41/0x70 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? __switch_to_asm+0x35/0x70 2020-08-11T20:23:03.533+01:00 <warning> kernel: kcompactd+0x86/0x1c0 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? kcompactd+0x86/0x1c0 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? wait_woken+0x80/0x80 2020-08-11T20:23:03.533+01:00 <warning> kernel: kthread+0x121/0x140 2020-08-11T20:23:03.533+01:00 <warning> kernel: ? kcompactd_do_work+0x2a0/0x2a0 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? kthread_create_worker_on_cpu+0x70/0x70 2020-08-11T20:23:03.534+01:00 <warning> kernel: ret_from_fork+0x35/0x40 2020-08-11T20:23:03.534+01:00 <err> kernel: INFO: task btrfs-transacti:864 blocked for more than 120 seconds. 2020-08-11T20:23:03.534+01:00 <err> kernel: Not tainted 4.15.0-112-generic #113-Ubuntu 2020-08-11T20:23:03.534+01:00 <err> kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 2020-08-11T20:23:03.534+01:00 <info> kernel: btrfs-transacti D 0 864 2 0x80000000 2020-08-11T20:23:03.534+01:00 <warning> kernel: Call Trace: 2020-08-11T20:23:03.534+01:00 <warning> kernel: __schedule+0x24e/0x880 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? bit_wait+0x60/0x60 2020-08-11T20:23:03.534+01:00 <warning> kernel: schedule+0x2c/0x80 2020-08-11T20:23:03.534+01:00 <warning> kernel: io_schedule+0x16/0x40 2020-08-11T20:23:03.534+01:00 <warning> kernel: bit_wait_io+0x11/0x60 2020-08-11T20:23:03.534+01:00 <warning> kernel: __wait_on_bit+0x4c/0x90 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? bit_wait+0x60/0x60 2020-08-11T20:23:03.534+01:00 <warning> kernel: out_of_line_wait_on_bit+0x90/0xb0 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? bit_waitqueue+0x40/0x40 2020-08-11T20:23:03.534+01:00 <warning> kernel: lock_extent_buffer_for_io+0x100/0x2a0 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: btree_write_cache_pages+0x1b8/0x420 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: btree_writepages+0x5d/0x70 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: do_writepages+0x4b/0xe0 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? enqueue_task_fair+0xb6/0x300 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? merge_state.part.47+0x44/0x130 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: __filemap_fdatawrite_range+0xcf/0x100 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? __filemap_fdatawrite_range+0xcf/0x100 2020-08-11T20:23:03.534+01:00 <warning> kernel: filemap_fdatawrite_range+0x13/0x20 2020-08-11T20:23:03.534+01:00 <warning> kernel: btrfs_write_marked_extents+0x68/0x140 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: btrfs_write_and_wait_marked_extents.constprop.20+0x4f/0x90 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: btrfs_commit_transaction+0x696/0x910 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? btrfs_commit_transaction+0x696/0x910 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? start_transaction+0x191/0x430 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: transaction_kthread+0x18d/0x1b0 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: kthread+0x121/0x140 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? btrfs_cleanup_transaction+0x570/0x570 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? kthread_create_worker_on_cpu+0x70/0x70 2020-08-11T20:23:03.534+01:00 <warning> kernel: ret_from_fork+0x35/0x40 2020-08-11T20:23:03.534+01:00 <err> kernel: INFO: task snapperd:5196 blocked for more than 120 seconds. 2020-08-11T20:23:03.534+01:00 <err> kernel: Not tainted 4.15.0-112-generic #113-Ubuntu 2020-08-11T20:23:03.534+01:00 <err> kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 2020-08-11T20:23:03.534+01:00 <info> kernel: snapperd D 0 5196 1 0x00000000 2020-08-11T20:23:03.534+01:00 <warning> kernel: Call Trace: 2020-08-11T20:23:03.534+01:00 <warning> kernel: __schedule+0x24e/0x880 2020-08-11T20:23:03.534+01:00 <warning> kernel: schedule+0x2c/0x80 2020-08-11T20:23:03.534+01:00 <warning> kernel: wait_for_commit+0x46/0x90 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? wait_woken+0x80/0x80 2020-08-11T20:23:03.534+01:00 <warning> kernel: btrfs_commit_transaction+0x287/0x910 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? start_transaction+0x191/0x430 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: btrfs_mksubvol+0x592/0x5a0 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: btrfs_ioctl_snap_create_transid+0x18c/0x1a0 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: btrfs_ioctl_snap_create_v2+0x11e/0x180 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: btrfs_ioctl+0x84f/0x2490 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? do_filp_open+0xaf/0x110 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? _copy_to_user+0x26/0x30 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? cp_new_stat+0x152/0x180 2020-08-11T20:23:03.534+01:00 <warning> kernel: do_vfs_ioctl+0xa8/0x630 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? btrfs_ioctl_get_supported_features+0x30/0x30 [btrfs] 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? do_vfs_ioctl+0xa8/0x630 2020-08-11T20:23:03.534+01:00 <warning> kernel: ? __fput+0x193/0x220 2020-08-11T20:23:03.534+01:00 <warning> kernel: SyS_ioctl+0x79/0x90 2020-08-11T20:23:03.534+01:00 <warning> kernel: do_syscall_64+0x73/0x130 2020-08-11T20:23:03.534+01:00 <warning> kernel: entry_SYSCALL_64_after_hwframe+0x41/0xa6 2020-08-11T20:23:03.534+01:00 <warning> kernel: RIP: 0033:0x7f6dec22d6d7 2020-08-11T20:23:03.534+01:00 <warning> kernel: RSP: 002b:00007f6de6c782c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 2020-08-11T20:23:03.534+01:00 <warning> kernel: RAX: ffffffffffffffda RBX: 00007f6de6c782d0 RCX: 00007f6dec22d6d7 2020-08-11T20:23:03.534+01:00 <warning> kernel: RDX: 00007f6de6c782d0 RSI: 0000000050009417 RDI: 0000000000000007 2020-08-11T20:23:03.534+01:00 <warning> kernel: RBP: 0000000000000006 R08: 000000000000000f R09: 00007f6de6c79f83 2020-08-11T20:23:03.534+01:00 <warning> kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 2020-08-11T20:23:03.534+01:00 <warning> kernel: R13: 00007f6de6c7a450 R14: 0000000000000000 R15: 0000000000000001 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-generic 4.15.0.112.100 ProcVersionSignature: Ubuntu 4.15.0-112.113-generic 4.15.18 Uname: Linux 4.15.0-112-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-112-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.16 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/hwC0D2', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D10p', '/dev/snd/pcmC0D9p', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Sat Aug 15 22:39:32 2020 InstallationDate: Installed on 2012-02-01 (3117 days ago) InstallationMedia: Ubuntu-Server 11.10 "Oneiric Ocelot" - Release amd64 (20111011) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Gigabyte Technology Co., Ltd. Q370M D3H GSM PLUS ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-112-generic root=/dev/mapper/lvm_loko0-root ro rootflags=subvol=@ sysrq_always_enabled panic=60 RelatedPackageVersions: linux-restricted-modules-4.15.0-112-generic N/A linux-backports-modules-4.15.0-112-generic N/A linux-firmware 1.173.19 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2020-08-07 (8 days ago) dmi.bios.date: 05/11/2020 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F15c C2 dmi.board.asset.tag: Default string dmi.board.name: Q370M D3H GSM PLUS dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF15cC2:bd05/11/2020:svnGigabyteTechnologyCo.,Ltd.:pnQ370MD3HGSMPLUS:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnQ370MD3HGSMPLUS:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: Default string dmi.product.name: Q370M D3H GSM PLUS dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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