Thanks for the data for the .2 tests. I've updated the packages with a .3 test build.
I've added a couple more lines of debug now to figure out some earlier missing information once we pop the stack. I've updated the package in the PPA, do you mind updating the zfs-dkms to 0.7.5-1ubuntu16.10~lp1861235.3 and re-testing? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1861235 Title: zfs recv PANIC at range_tree.c:304:range_tree_find_impl() Status in Linux: New Status in zfs-linux package in Ubuntu: Incomplete Status in zfs-linux source package in Bionic: New Bug description: Same as bug 1861228 but with a newer kernel installed. [ 790.702566] VERIFY(size != 0) failed [ 790.702590] PANIC at range_tree.c:304:range_tree_find_impl() [ 790.702611] Showing stack for process 28685 [ 790.702614] CPU: 17 PID: 28685 Comm: receive_writer Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 790.702615] Hardware name: Supermicro SSG-6038R-E1CR16L/X10DRH-iT, BIOS 2.0 12/17/2015 [ 790.702616] Call Trace: [ 790.702626] dump_stack+0x6d/0x8e [ 790.702637] spl_dumpstack+0x42/0x50 [spl] [ 790.702640] spl_panic+0xc8/0x110 [spl] [ 790.702645] ? __switch_to_asm+0x41/0x70 [ 790.702714] ? arc_prune_task+0x1a/0x40 [zfs] [ 790.702740] ? dbuf_dirty+0x43d/0x850 [zfs] [ 790.702745] ? getrawmonotonic64+0x43/0xd0 [ 790.702746] ? getrawmonotonic64+0x43/0xd0 [ 790.702775] ? dmu_zfetch+0x49a/0x500 [zfs] [ 790.702778] ? getrawmonotonic64+0x43/0xd0 [ 790.702805] ? dmu_zfetch+0x49a/0x500 [zfs] [ 790.702807] ? mutex_lock+0x12/0x40 [ 790.702833] ? dbuf_rele_and_unlock+0x1a8/0x4b0 [zfs] [ 790.702866] range_tree_find_impl+0x88/0x90 [zfs] [ 790.702870] ? spl_kmem_zalloc+0xdc/0x1a0 [spl] [ 790.702902] range_tree_clear+0x4f/0x60 [zfs] [ 790.702930] dnode_free_range+0x11f/0x5a0 [zfs] [ 790.702957] dmu_object_free+0x53/0x90 [zfs] [ 790.702983] dmu_free_long_object+0x9f/0xc0 [zfs] [ 790.703010] receive_freeobjects.isra.12+0x7a/0x100 [zfs] [ 790.703036] receive_writer_thread+0x6d2/0xa60 [zfs] [ 790.703040] ? set_curr_task_fair+0x2b/0x60 [ 790.703043] ? spl_kmem_free+0x33/0x40 [spl] [ 790.703048] ? kfree+0x165/0x180 [ 790.703073] ? receive_free.isra.13+0xc0/0xc0 [zfs] [ 790.703078] thread_generic_wrapper+0x74/0x90 [spl] [ 790.703081] kthread+0x121/0x140 [ 790.703084] ? __thread_exit+0x20/0x20 [spl] [ 790.703085] ? kthread_create_worker_on_cpu+0x70/0x70 [ 790.703088] ret_from_fork+0x35/0x40 [ 967.636923] INFO: task txg_quiesce:14810 blocked for more than 120 seconds. [ 967.636979] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 967.637024] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 967.637076] txg_quiesce D 0 14810 2 0x80000000 [ 967.637080] Call Trace: [ 967.637089] __schedule+0x24e/0x880 [ 967.637092] schedule+0x2c/0x80 [ 967.637106] cv_wait_common+0x11e/0x140 [spl] [ 967.637114] ? wait_woken+0x80/0x80 [ 967.637122] __cv_wait+0x15/0x20 [spl] [ 967.637210] txg_quiesce_thread+0x2cb/0x3d0 [zfs] [ 967.637278] ? txg_delay+0x1b0/0x1b0 [zfs] [ 967.637286] thread_generic_wrapper+0x74/0x90 [spl] [ 967.637291] kthread+0x121/0x140 [ 967.637297] ? __thread_exit+0x20/0x20 [spl] [ 967.637299] ? kthread_create_worker_on_cpu+0x70/0x70 [ 967.637304] ret_from_fork+0x35/0x40 [ 967.637326] INFO: task zfs:28590 blocked for more than 120 seconds. [ 967.637371] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 967.637416] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 967.637467] zfs D 0 28590 28587 0x80000080 [ 967.637470] Call Trace: [ 967.637474] __schedule+0x24e/0x880 [ 967.637477] schedule+0x2c/0x80 [ 967.637486] cv_wait_common+0x11e/0x140 [spl] [ 967.637491] ? wait_woken+0x80/0x80 [ 967.637498] __cv_wait+0x15/0x20 [spl] [ 967.637554] dmu_recv_stream+0xa51/0xef0 [zfs] [ 967.637630] zfs_ioc_recv_impl+0x306/0x1100 [zfs] [ 967.637679] ? dbuf_read+0x34a/0x920 [zfs] [ 967.637725] ? dbuf_rele+0x36/0x40 [zfs] [ 967.637728] ? _cond_resched+0x19/0x40 [ 967.637798] zfs_ioc_recv_new+0x33d/0x410 [zfs] [ 967.637809] ? spl_kmem_alloc_impl+0xe5/0x1a0 [spl] [ 967.637816] ? spl_vmem_alloc+0x19/0x20 [spl] [ 967.637828] ? nv_alloc_sleep_spl+0x1f/0x30 [znvpair] [ 967.637834] ? nv_mem_zalloc.isra.0+0x2e/0x40 [znvpair] [ 967.637840] ? nvlist_xalloc.part.2+0x50/0xb0 [znvpair] [ 967.637905] zfsdev_ioctl+0x451/0x610 [zfs] [ 967.637913] do_vfs_ioctl+0xa8/0x630 [ 967.637917] ? __audit_syscall_entry+0xbc/0x110 [ 967.637924] ? syscall_trace_enter+0x1da/0x2d0 [ 967.637927] SyS_ioctl+0x79/0x90 [ 967.637930] do_syscall_64+0x73/0x130 [ 967.637935] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 967.637938] RIP: 0033:0x7fc305a905d7 [ 967.637940] RSP: 002b:00007ffc45e39618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 967.637943] RAX: ffffffffffffffda RBX: 0000000000005a46 RCX: 00007fc305a905d7 [ 967.637945] RDX: 00007ffc45e39630 RSI: 0000000000005a46 RDI: 0000000000000006 [ 967.637946] RBP: 00007ffc45e39630 R08: 00007fc305d65e20 R09: 0000000000000000 [ 967.637948] R10: 00005648313c7010 R11: 0000000000000246 R12: 00007ffc45e3cc60 [ 967.637949] R13: 0000000000000006 R14: 00005648313cef10 R15: 000000000000000c [ 967.637960] INFO: task receive_writer:28685 blocked for more than 120 seconds. [ 967.638010] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 967.638055] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 967.638107] receive_writer D 0 28685 2 0x80000080 [ 967.638109] Call Trace: [ 967.638113] __schedule+0x24e/0x880 [ 967.638117] schedule+0x2c/0x80 [ 967.638126] spl_panic+0xfa/0x110 [spl] [ 967.638175] ? arc_prune_task+0x1a/0x40 [zfs] [ 967.638223] ? dbuf_dirty+0x43d/0x850 [zfs] [ 967.638229] ? getrawmonotonic64+0x43/0xd0 [ 967.638232] ? getrawmonotonic64+0x43/0xd0 [ 967.638289] ? dmu_zfetch+0x49a/0x500 [zfs] [ 967.638293] ? getrawmonotonic64+0x43/0xd0 [ 967.638344] ? dmu_zfetch+0x49a/0x500 [zfs] [ 967.638348] ? mutex_lock+0x12/0x40 [ 967.638395] ? dbuf_rele_and_unlock+0x1a8/0x4b0 [zfs] [ 967.638461] range_tree_find_impl+0x88/0x90 [zfs] [ 967.638468] ? spl_kmem_zalloc+0xdc/0x1a0 [spl] [ 967.638530] range_tree_clear+0x4f/0x60 [zfs] [ 967.638583] dnode_free_range+0x11f/0x5a0 [zfs] [ 967.638635] dmu_object_free+0x53/0x90 [zfs] [ 967.638685] dmu_free_long_object+0x9f/0xc0 [zfs] [ 967.638738] receive_freeobjects.isra.12+0x7a/0x100 [zfs] [ 967.638787] receive_writer_thread+0x6d2/0xa60 [zfs] [ 967.638792] ? set_curr_task_fair+0x2b/0x60 [ 967.638800] ? spl_kmem_free+0x33/0x40 [spl] [ 967.638805] ? kfree+0x165/0x180 [ 967.638852] ? receive_free.isra.13+0xc0/0xc0 [zfs] [ 967.638860] thread_generic_wrapper+0x74/0x90 [spl] [ 967.638863] kthread+0x121/0x140 [ 967.638869] ? __thread_exit+0x20/0x20 [spl] [ 967.638872] ? kthread_create_worker_on_cpu+0x70/0x70 [ 967.638876] ret_from_fork+0x35/0x40 [ 1088.467860] INFO: task txg_quiesce:14810 blocked for more than 120 seconds. [ 1088.467913] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 1088.467958] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1088.468010] txg_quiesce D 0 14810 2 0x80000000 [ 1088.468013] Call Trace: [ 1088.468020] __schedule+0x24e/0x880 [ 1088.468023] schedule+0x2c/0x80 [ 1088.468035] cv_wait_common+0x11e/0x140 [spl] [ 1088.468039] ? wait_woken+0x80/0x80 [ 1088.468048] __cv_wait+0x15/0x20 [spl] [ 1088.468124] txg_quiesce_thread+0x2cb/0x3d0 [zfs] [ 1088.468193] ? txg_delay+0x1b0/0x1b0 [zfs] [ 1088.468201] thread_generic_wrapper+0x74/0x90 [spl] [ 1088.468204] kthread+0x121/0x140 [ 1088.468210] ? __thread_exit+0x20/0x20 [spl] [ 1088.468213] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1088.468217] ret_from_fork+0x35/0x40 [ 1088.468234] INFO: task zfs:28590 blocked for more than 120 seconds. [ 1088.468278] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 1088.468322] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1088.468373] zfs D 0 28590 28587 0x80000080 [ 1088.468376] Call Trace: [ 1088.468379] __schedule+0x24e/0x880 [ 1088.468382] schedule+0x2c/0x80 [ 1088.468391] cv_wait_common+0x11e/0x140 [spl] [ 1088.468396] ? wait_woken+0x80/0x80 [ 1088.468403] __cv_wait+0x15/0x20 [spl] [ 1088.468459] dmu_recv_stream+0xa51/0xef0 [zfs] [ 1088.468534] zfs_ioc_recv_impl+0x306/0x1100 [zfs] [ 1088.468582] ? dbuf_read+0x34a/0x920 [zfs] [ 1088.468631] ? dbuf_rele+0x36/0x40 [zfs] [ 1088.468634] ? _cond_resched+0x19/0x40 [ 1088.468704] zfs_ioc_recv_new+0x33d/0x410 [zfs] [ 1088.468714] ? spl_kmem_alloc_impl+0xe5/0x1a0 [spl] [ 1088.468721] ? spl_vmem_alloc+0x19/0x20 [spl] [ 1088.468729] ? nv_alloc_sleep_spl+0x1f/0x30 [znvpair] [ 1088.468735] ? nv_mem_zalloc.isra.0+0x2e/0x40 [znvpair] [ 1088.468740] ? nvlist_xalloc.part.2+0x50/0xb0 [znvpair] [ 1088.468805] zfsdev_ioctl+0x451/0x610 [zfs] [ 1088.468811] do_vfs_ioctl+0xa8/0x630 [ 1088.468815] ? __audit_syscall_entry+0xbc/0x110 [ 1088.468821] ? syscall_trace_enter+0x1da/0x2d0 [ 1088.468824] SyS_ioctl+0x79/0x90 [ 1088.468827] do_syscall_64+0x73/0x130 [ 1088.468831] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 1088.468834] RIP: 0033:0x7fc305a905d7 [ 1088.468836] RSP: 002b:00007ffc45e39618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1088.468839] RAX: ffffffffffffffda RBX: 0000000000005a46 RCX: 00007fc305a905d7 [ 1088.468840] RDX: 00007ffc45e39630 RSI: 0000000000005a46 RDI: 0000000000000006 [ 1088.468842] RBP: 00007ffc45e39630 R08: 00007fc305d65e20 R09: 0000000000000000 [ 1088.468843] R10: 00005648313c7010 R11: 0000000000000246 R12: 00007ffc45e3cc60 [ 1088.468845] R13: 0000000000000006 R14: 00005648313cef10 R15: 000000000000000c [ 1088.468853] INFO: task receive_writer:28685 blocked for more than 120 seconds. [ 1088.468903] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 1088.468948] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1088.469000] receive_writer D 0 28685 2 0x80000080 [ 1088.469002] Call Trace: [ 1088.469006] __schedule+0x24e/0x880 [ 1088.469009] schedule+0x2c/0x80 [ 1088.469018] spl_panic+0xfa/0x110 [spl] [ 1088.469066] ? arc_prune_task+0x1a/0x40 [zfs] [ 1088.469116] ? dbuf_dirty+0x43d/0x850 [zfs] [ 1088.469120] ? getrawmonotonic64+0x43/0xd0 [ 1088.469123] ? getrawmonotonic64+0x43/0xd0 [ 1088.469178] ? dmu_zfetch+0x49a/0x500 [zfs] [ 1088.469182] ? getrawmonotonic64+0x43/0xd0 [ 1088.469234] ? dmu_zfetch+0x49a/0x500 [zfs] [ 1088.469237] ? mutex_lock+0x12/0x40 [ 1088.469286] ? dbuf_rele_and_unlock+0x1a8/0x4b0 [zfs] [ 1088.469352] range_tree_find_impl+0x88/0x90 [zfs] [ 1088.469360] ? spl_kmem_zalloc+0xdc/0x1a0 [spl] [ 1088.469421] range_tree_clear+0x4f/0x60 [zfs] [ 1088.469475] dnode_free_range+0x11f/0x5a0 [zfs] [ 1088.469526] dmu_object_free+0x53/0x90 [zfs] [ 1088.469575] dmu_free_long_object+0x9f/0xc0 [zfs] [ 1088.469627] receive_freeobjects.isra.12+0x7a/0x100 [zfs] [ 1088.469678] receive_writer_thread+0x6d2/0xa60 [zfs] [ 1088.469681] ? set_curr_task_fair+0x2b/0x60 [ 1088.469689] ? spl_kmem_free+0x33/0x40 [spl] [ 1088.469693] ? kfree+0x165/0x180 [ 1088.469740] ? receive_free.isra.13+0xc0/0xc0 [zfs] [ 1088.469747] thread_generic_wrapper+0x74/0x90 [spl] [ 1088.469750] kthread+0x121/0x140 [ 1088.469756] ? __thread_exit+0x20/0x20 [spl] [ 1088.469759] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1088.469763] ret_from_fork+0x35/0x40 [ 1209.298375] INFO: task txg_quiesce:14810 blocked for more than 120 seconds. [ 1209.298429] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 1209.298474] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1209.298526] txg_quiesce D 0 14810 2 0x80000000 [ 1209.298530] Call Trace: [ 1209.298536] __schedule+0x24e/0x880 [ 1209.298540] schedule+0x2c/0x80 [ 1209.298551] cv_wait_common+0x11e/0x140 [spl] [ 1209.298556] ? wait_woken+0x80/0x80 [ 1209.298564] __cv_wait+0x15/0x20 [spl] [ 1209.298644] txg_quiesce_thread+0x2cb/0x3d0 [zfs] [ 1209.298713] ? txg_delay+0x1b0/0x1b0 [zfs] [ 1209.298721] thread_generic_wrapper+0x74/0x90 [spl] [ 1209.298724] kthread+0x121/0x140 [ 1209.298730] ? __thread_exit+0x20/0x20 [spl] [ 1209.298733] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1209.298738] ret_from_fork+0x35/0x40 [ 1209.298754] INFO: task zfs:28590 blocked for more than 120 seconds. [ 1209.298799] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 1209.298843] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1209.298894] zfs D 0 28590 28587 0x80000080 [ 1209.298897] Call Trace: [ 1209.298900] __schedule+0x24e/0x880 [ 1209.298903] schedule+0x2c/0x80 [ 1209.298912] cv_wait_common+0x11e/0x140 [spl] [ 1209.298916] ? wait_woken+0x80/0x80 [ 1209.298924] __cv_wait+0x15/0x20 [spl] [ 1209.298981] dmu_recv_stream+0xa51/0xef0 [zfs] [ 1209.299056] zfs_ioc_recv_impl+0x306/0x1100 [zfs] [ 1209.299104] ? dbuf_read+0x34a/0x920 [zfs] [ 1209.299151] ? dbuf_rele+0x36/0x40 [zfs] [ 1209.299154] ? _cond_resched+0x19/0x40 [ 1209.299223] zfs_ioc_recv_new+0x33d/0x410 [zfs] [ 1209.299232] ? spl_kmem_alloc_impl+0xe5/0x1a0 [spl] [ 1209.299239] ? spl_vmem_alloc+0x19/0x20 [spl] [ 1209.299247] ? nv_alloc_sleep_spl+0x1f/0x30 [znvpair] [ 1209.299255] ? nv_mem_zalloc.isra.0+0x2e/0x40 [znvpair] [ 1209.299261] ? nvlist_xalloc.part.2+0x50/0xb0 [znvpair] [ 1209.299325] zfsdev_ioctl+0x451/0x610 [zfs] [ 1209.299331] do_vfs_ioctl+0xa8/0x630 [ 1209.299334] ? __audit_syscall_entry+0xbc/0x110 [ 1209.299339] ? syscall_trace_enter+0x1da/0x2d0 [ 1209.299341] SyS_ioctl+0x79/0x90 [ 1209.299345] do_syscall_64+0x73/0x130 [ 1209.299349] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 1209.299352] RIP: 0033:0x7fc305a905d7 [ 1209.299353] RSP: 002b:00007ffc45e39618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1209.299358] RAX: ffffffffffffffda RBX: 0000000000005a46 RCX: 00007fc305a905d7 [ 1209.299361] RDX: 00007ffc45e39630 RSI: 0000000000005a46 RDI: 0000000000000006 [ 1209.299362] RBP: 00007ffc45e39630 R08: 00007fc305d65e20 R09: 0000000000000000 [ 1209.299365] R10: 00005648313c7010 R11: 0000000000000246 R12: 00007ffc45e3cc60 [ 1209.299366] R13: 0000000000000006 R14: 00005648313cef10 R15: 000000000000000c [ 1209.299375] INFO: task receive_writer:28685 blocked for more than 120 seconds. [ 1209.299426] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 1209.299471] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1209.299523] receive_writer D 0 28685 2 0x80000080 [ 1209.299525] Call Trace: [ 1209.299529] __schedule+0x24e/0x880 [ 1209.299532] schedule+0x2c/0x80 [ 1209.299541] spl_panic+0xfa/0x110 [spl] [ 1209.299591] ? arc_prune_task+0x1a/0x40 [zfs] [ 1209.299638] ? dbuf_dirty+0x43d/0x850 [zfs] [ 1209.299644] ? getrawmonotonic64+0x43/0xd0 [ 1209.299647] ? getrawmonotonic64+0x43/0xd0 [ 1209.299703] ? dmu_zfetch+0x49a/0x500 [zfs] [ 1209.299707] ? getrawmonotonic64+0x43/0xd0 [ 1209.299759] ? dmu_zfetch+0x49a/0x500 [zfs] [ 1209.299762] ? mutex_lock+0x12/0x40 [ 1209.299810] ? dbuf_rele_and_unlock+0x1a8/0x4b0 [zfs] [ 1209.299875] range_tree_find_impl+0x88/0x90 [zfs] [ 1209.299883] ? spl_kmem_zalloc+0xdc/0x1a0 [spl] [ 1209.299944] range_tree_clear+0x4f/0x60 [zfs] [ 1209.300000] dnode_free_range+0x11f/0x5a0 [zfs] [ 1209.300052] dmu_object_free+0x53/0x90 [zfs] [ 1209.300102] dmu_free_long_object+0x9f/0xc0 [zfs] [ 1209.300153] receive_freeobjects.isra.12+0x7a/0x100 [zfs] [ 1209.300203] receive_writer_thread+0x6d2/0xa60 [zfs] [ 1209.300208] ? set_curr_task_fair+0x2b/0x60 [ 1209.300215] ? spl_kmem_free+0x33/0x40 [spl] [ 1209.300219] ? kfree+0x165/0x180 [ 1209.300266] ? receive_free.isra.13+0xc0/0xc0 [zfs] [ 1209.300273] thread_generic_wrapper+0x74/0x90 [spl] [ 1209.300278] kthread+0x121/0x140 [ 1209.300284] ? __thread_exit+0x20/0x20 [spl] [ 1209.300287] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1209.300291] ret_from_fork+0x35/0x40 [ 1330.129221] INFO: task txg_quiesce:14810 blocked for more than 120 seconds. [ 1330.129282] Tainted: P O 4.15.0-76-generic #86-Ubuntu [ 1330.129328] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1330.129382] txg_quiesce D 0 14810 2 0x80000000 [ 1330.129387] Call Trace: [ 1330.129399] __schedule+0x24e/0x880 [ 1330.129403] schedule+0x2c/0x80 [ 1330.129420] cv_wait_common+0x11e/0x140 [spl] [ 1330.129429] ? wait_woken+0x80/0x80 [ 1330.129437] __cv_wait+0x15/0x20 [spl] [ 1330.129547] txg_quiesce_thread+0x2cb/0x3d0 [zfs] [ 1330.129617] ? txg_delay+0x1b0/0x1b0 [zfs] [ 1330.129625] thread_generic_wrapper+0x74/0x90 [spl] [ 1330.129631] kthread+0x121/0x140 [ 1330.129638] ? __thread_exit+0x20/0x20 [spl] [ 1330.129641] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1330.129646] ret_from_fork+0x35/0x40 Thanks ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-76-generic 4.15.0-76.86 ProcVersionSignature: Ubuntu 4.15.0-76.86-generic 4.15.18 Uname: Linux 4.15.0-76-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jan 28 13:31 seq crw-rw---- 1 root audio 116, 33 Jan 28 13:31 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.9 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Tue Jan 28 15:24:10 2020 HibernationDevice: RESUME=UUID=d34df57d-ae32-4002-be2c-a25efa8678e4 InstallationDate: Installed on 2016-04-04 (1394 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Beta amd64 (20160325) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' MachineType: Supermicro SSG-6038R-E1CR16L PciMultimedia: ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-76-generic root=UUID=d1ab8bd8-41d5-4142-92d6-d0926539807b ro RelatedPackageVersions: linux-restricted-modules-4.15.0-76-generic N/A linux-backports-modules-4.15.0-76-generic N/A linux-firmware 1.173.14 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-08-16 (530 days ago) dmi.bios.date: 12/17/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2.0 dmi.board.asset.tag: Default string dmi.board.name: X10DRH-iT dmi.board.vendor: Supermicro dmi.board.version: 1.01 dmi.chassis.asset.tag: Default string dmi.chassis.type: 1 dmi.chassis.vendor: Supermicro dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0:bd12/17/2015:svnSupermicro:pnSSG-6038R-E1CR16L:pvr123456789:rvnSupermicro:rnX10DRH-iT:rvr1.01:cvnSupermicro:ct1:cvrDefaultstring: dmi.product.family: SMC X10 dmi.product.name: SSG-6038R-E1CR16L dmi.product.version: 123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1861235/+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