[DRBD-user] Softlockup when using 9.0.15-1 version
Yannis Milios
yannis.milios at gmail.com
Tue Oct 2 14:52:40 CEST 2018
Not sure if it's related, but I had a similar issue on one of my PVE hosts
recently. I have the same kernel installed on all (3) nodes, but this
machine was locking up after a few minutes with the softlockup messages you
were getting. The only way to recover was to hard reboot the machine.
Managed to get it working by adding "nmi_watchdog=0" in GRUB options, as
per PVE wiki instructions. Not sure if DRBD or the kernel (tried with
different kernel as well, with no luck), or something else was causing
this. So far, works fine. I'm using DRBD 9.0.15-1 kernel module on all
nodes.
On Sun, 30 Sep 2018 at 12:45, kvaps <kvapss at gmail.com> wrote:
> Hi, ok. Here is my kernel traces for the 4.15.18-5-pve kernel, I use
> it with both: bionic and xenial ubuntu systems.
> There is also out-of-tree mlnx_en driver installed (version 4.3-1.0.1)
> I use VFIO devices connected via bonding for DRBD communication.
> As I said before the problem occurs only with 9.0.15-1 kernel module,
> and there is no problems on 9.0.14-1 version.
>
> I'm not sure but maybe it is connected with version mismatch between
> 9.0.14-1 and 9.0.15-1 during replication process is running?
>
>
> -------------------------------------------------------------------------------
>
> [ 673.805377] NMI watchdog: Watchdog detected hard LOCKUP on cpu 7
> [ 683.134748] NMI watchdog: Watchdog detected hard LOCKUP on cpu 0
> [ 688.597202] watchdog: BUG: soft lockup - CPU#4 stuck for 23s!
> [kworker/4:2:3483]
> [ 689.539292] Kernel panic - not syncing: softlockup: hung tasks
> [ 689.822358] CPU: 4 PID: 3483 Comm: kworker/4:2 Tainted: P
> O L 4.15.18-5-pve #1
> [ 690.223400] Hardware name: HP ProLiant m710x Server
> Cartridge/ProLiant m710x Server Cartridge, BIOS H07 05/10/2018
> [ 690.726310] Workqueue: events wait_rcu_exp_gp
> [ 690.937639] Call Trace:
> [ 691.055597] <IRQ>
> [ 691.152632] dump_stack+0x63/0x8b
> [ 691.314120] panic+0xe4/0x244
> [ 691.457890] watchdog_timer_fn+0x21c/0x230
> [ 691.656303] ? watchdog+0x30/0x30
> [ 691.816636] __hrtimer_run_queues+0xe7/0x220
> [ 692.023631] hrtimer_interrupt+0xa3/0x1e0
> [ 692.218525] smp_apic_timer_interrupt+0x6f/0x130
> [ 692.442133] apic_timer_interrupt+0x84/0x90
> [ 692.644699] </IRQ>
> [ 692.746094] RIP: 0010:smp_call_function_single+0x8e/0x100
> [ 693.007742] RSP: 0018:ffffbb8a07443d80 EFLAGS: 00000202 ORIG_RAX:
> ffffffffffffff11
> [ 693.375128] RAX: 0000000000000001 RBX: ffffffffbb4a9200 RCX:
> 0000000000000000
> [ 693.721604] RDX: ffffffffbb4a9200 RSI: ffffffffba0feac0 RDI:
> 0000000000000005
> [ 694.068179] RBP: ffffbb8a07443dd0 R08: ffff96bf81523880 R09:
> 0000000000000005
> [ 694.414734] R10: ffffbb8a07443df8 R11: 0000000000000280 R12:
> 000000000000005e
> [ 694.760804] R13: ffffffffbb4a9200 R14: 00000000000000a0 R15:
> 0000000000000001
> [ 695.107153] ? rcu_barrier_func+0x50/0x50
> [ 695.301204] sync_rcu_exp_select_cpus+0x2ad/0x420
> [ 695.529610] ? cpumask_next+0x1b/0x20
> [ 695.707302] ? sync_rcu_exp_select_cpus+0x2ad/0x420
> [ 695.944146] ? rcu_barrier_func+0x50/0x50
> [ 696.138698] wait_rcu_exp_gp+0x20/0x30
> [ 696.320144] process_one_work+0x1e0/0x400
> [ 696.514658] worker_thread+0x4b/0x420
> [ 696.692225] kthread+0x105/0x140
> [ 696.848570] ? process_one_work+0x400/0x400
> [ 697.051278] ? kthread_create_worker_on_cpu+0x70/0x70
> [ 697.296928] ? do_syscall_64+0x73/0x130
> [ 697.483045] ? SyS_exit_group+0x14/0x20
> [ 697.669355] ret_from_fork+0x35/0x40
> [ 698.924648] Shutting down cpus with NMI
> [ 699.110150] Kernel Offset: 0x39000000 from 0xffffffff81000000
> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [ 699.638057] Rebooting in 10 seconds..
> [ 709.736369] ACPI MEMORY or I/O RESET_REG.
>
>
> -------------------------------------------------------------------------------
>
> [ 9596.201090] watchdog: BUG: soft lockup - CPU#5 stuck for 23s!
> [systemd:12398]
> [ 9596.548566] Kernel panic - not syncing: softlockup: hung tasks
> [ 9596.831632] CPU: 5 PID: 12398 Comm: systemd Tainted: P O
> L 4.15.18-5-pve #1
> [ 9597.220358] Hardware name: HP ProLiant m710x Server
> Cartridge/ProLiant m710x Server Cartridge, BIOS H07 05/10/2018
> [ 9597.724072] Call Trace:
> [ 9597.842902] <IRQ>
> [ 9597.940248] dump_stack+0x63/0x8b
> [ 9598.100587] panic+0xe4/0x244
> [ 9598.244267] watchdog_timer_fn+0x21c/0x230
> [ 9598.442988] ? watchdog+0x30/0x30
> [ 9598.603634] __hrtimer_run_queues+0xe7/0x220
> [ 9598.811388] hrtimer_interrupt+0xa3/0x1e0
> [ 9599.006050] smp_apic_timer_interrupt+0x6f/0x130
> [ 9599.230283] apic_timer_interrupt+0x84/0x90
> [ 9599.433052] </IRQ>
> [ 9599.534382] RIP: 0010:smp_call_function_many+0x1f9/0x260
> [ 9599.791986] RSP: 0018:ffffab5ca6027b40 EFLAGS: 00000202 ORIG_RAX:
> ffffffffffffff11
> [ 9600.155228] RAX: 0000000000000000 RBX: ffffa00801563900 RCX:
> ffffa008014288e0
> [ 9600.501585] RDX: 0000000000000001 RSI: 0000000000000000 RDI:
> ffffa007c0844070
> [ 9600.847949] RBP: ffffab5ca6027b78 R08: ffffffffffffffff R09:
> 00000000000000df
> [ 9601.194242] R10: ffffd877bfaf9c00 R11: 0000000000000095 R12:
> ffffffff8767b7d0
> [ 9601.541932] R13: 0000000000000000 R14: 0000000000000001 R15:
> 0000000000000008
> [ 9601.888206] ? load_new_mm_cr3+0xf0/0xf0
> [ 9602.078392] ? load_new_mm_cr3+0xf0/0xf0
> [ 9602.268282] on_each_cpu+0x2d/0x60
> [ 9602.433017] flush_tlb_kernel_range+0x4b/0x80
> [ 9602.644043] ? purge_fragmented_blocks_allcpus+0x53/0x1f0
> [ 9602.906196] __purge_vmap_area_lazy+0x52/0xc0
> [ 9603.117778] vm_unmap_aliases+0xfa/0x130
> [ 9603.307708] change_page_attr_set_clr+0xea/0x370
> [ 9603.531861] set_memory_ro+0x29/0x30
> [ 9603.705108] bpf_int_jit_compile+0x1e0/0x2d0
> [ 9603.912190] bpf_prog_select_runtime+0xdb/0x100
> [ 9604.132496] bpf_prepare_filter+0x387/0x400
> [ 9604.335457] __get_filter+0xc3/0x100
> [ 9604.508597] sk_attach_filter+0x18/0x60
> [ 9604.694663] sock_setsockopt+0x43e/0x990
> [ 9604.884914] ? apparmor_socket_setsockopt+0x22/0x30
> [ 9605.121579] SyS_setsockopt+0xd3/0xf0
> [ 9605.298778] do_syscall_64+0x73/0x130
> [ 9605.476152] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
> [ 9605.721497] RIP: 0033:0x7efd49ed5e6a
> [ 9605.894823] RSP: 002b:00007ffdefb136e8 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000036
> [ 9606.263666] RAX: ffffffffffffffda RBX: 000000000000000b RCX:
> 00007efd49ed5e6a
> [ 9606.610963] RDX: 000000000000001a RSI: 0000000000000001 RDI:
> 0000000000000009
> [ 9606.959240] RBP: 00007ffdefb13710 R08: 0000000000000010 R09:
> 0000000000000006
> [ 9607.306903] R10: 00007ffdefb13700 R11: 0000000000000246 R12:
> 000055b51a1a03c8
> [ 9607.655192] R13: 000000000000000a R14: 00007ffdefb13760 R15:
> 000055b51a1a0230
> [ 9609.124819] Shutting down cpus with NMI
> [ 9609.311447] Kernel Offset: 0x6600000 from 0xffffffff81000000
> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [ 9609.840620] Rebooting in 10 seconds..
>
>
> -------------------------------------------------------------------------------
>
> [ 384.679007] NMI watchdog: Watchdog detected hard LOCKUP on cpu 0
> [ 384.781477] NMI watchdog: Watchdog detected hard LOCKUP on cpu 1
> [ 396.205982] watchdog: BUG: soft lockup - CPU#2 stuck for 22s!
> [sensors:12097]
> [ 397.136095] Kernel panic - not syncing: softlockup: hung tasks
> [ 397.418904] CPU: 2 PID: 12097 Comm: sensors Tainted: P O
> L 4.15.18-5-pve #1
> [ 397.807613] Hardware name: HP ProLiant m710x Server
> Cartridge/ProLiant m710x Server Cartridge, BIOS H07 05/10/2018
> [ 398.311096] Call Trace:
> [ 398.429564] <IRQ>
> [ 398.526903] dump_stack+0x63/0x8b
> [ 398.687306] panic+0xe4/0x244
> [ 398.830885] watchdog_timer_fn+0x21c/0x230
> [ 399.029325] ? watchdog+0x30/0x30
> [ 399.189827] __hrtimer_run_queues+0xe7/0x220
> [ 399.397121] hrtimer_interrupt+0xa3/0x1e0
> [ 399.591510] smp_apic_timer_interrupt+0x6f/0x130
> [ 399.815278] apic_timer_interrupt+0x84/0x90
> [ 400.018834] </IRQ>
> [ 400.120069] RIP: 0010:smp_call_function_single+0xdd/0x100
> [ 400.381752] RSP: 0018:ffffb5862411fca0 EFLAGS: 00000202 ORIG_RAX:
> ffffffffffffff11
> [ 400.744894] RAX: 0000000000000000 RBX: ffffb5862411fd6c RCX:
> 0000000000000830
> [ 401.091501] RDX: 0000000000000001 RSI: 00000000000008fb RDI:
> 0000000000000830
> [ 401.433770] RBP: ffffb5862411fcf0 R08: ffff9d389560cc18 R09:
> ffff9d388a75e180
> [ 401.775868] R10: ffffb5862411fd20 R11: 0000000000000000 R12:
> ffffb5862411fd68
> [ 402.124117] R13: ffff9d388a47b000 R14: 0000000000000001 R15:
> ffff9d3873594080
> [ 402.470882] ? sbitmap_queue_init_node+0x1a0/0x1a0
> [ 402.703603] ? vsnprintf+0xf1/0x4e0
> [ 402.872647] rdmsr_on_cpu+0x5d/0x90
> [ 403.042378] ? rdmsr_on_cpu+0x5d/0x90
> [ 403.219880] show_temp+0xa9/0xe0 [coretemp]
> [ 403.422975] dev_attr_show+0x23/0x60
> [ 403.596290] ? mutex_lock+0x12/0x40
> [ 403.765190] sysfs_kf_seq_show+0xa2/0x130
> [ 403.959449] kernfs_seq_show+0x27/0x30
> [ 404.141147] seq_read+0x12a/0x430
> [ 404.301845] kernfs_fop_read+0x116/0x180
> [ 404.492090] ? security_file_permission+0xa1/0xc0
> [ 404.720388] __vfs_read+0x1b/0x40
> [ 404.881143] vfs_read+0x96/0x130
> [ 405.037746] SyS_read+0x55/0xc0
> [ 405.189772] do_syscall_64+0x73/0x130
> [ 405.367127] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
> [ 405.612262] RIP: 0033:0x7efc19c3e260
> [ 405.785308] RSP: 002b:00007fff2685b538 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000000
> [ 406.153341] RAX: ffffffffffffffda RBX: 0000000002129880 RCX:
> 00007efc19c3e260
> [ 406.495101] RDX: 0000000000001000 RSI: 0000000002129ab0 RDI:
> 0000000000000003
> [ 406.842407] RBP: 00007fff2685bc50 R08: 00007efc19f0bb98 R09:
> 0000000000000000
> [ 407.189117] R10: 00007efc19f0bb78 R11: 0000000000000246 R12:
> 0000000000000000
> [ 407.536464] R13: ffffffffffffff98 R14: 00007efc19f0c420 R15:
> 0000000002129880
> [ 407.853825] INFO: rcu_sched detected stalls on CPUs/tasks:
> [ 407.853829] 0-...0: (1 GPs behind) idle=ca2/140000000000001/0
> softirq=23498/23499 fqs=7290
> [ 407.853831] 1-...0: (3 GPs behind) idle=346/140000000000000/0
> softirq=22199/22200 fqs=7290
> [ 407.853831] (detected by 4, t=15002 jiffies, g=15073, c=15072, q=46784)
> [ 407.853834] Sending NMI from CPU 4 to CPUs 0:
> [ 407.853837] NMI backtrace for cpu 0
> [ 407.854048] CPU: 0 PID: 8730 Comm: drbd_r_tgt112 Tainted: P
> O L 4.15.18-5-pve #1
> [ 407.854049] Hardware name: HP ProLiant m710x Server
> Cartridge/ProLiant m710x Server Cartridge, BIOS H07 05/10/2018
> [ 407.854053] RIP: 0010:native_queued_spin_lock_slowpath+0x179/0x1a0
> [ 407.854054] RSP: 0018:ffff9d3901403bd8 EFLAGS: 00000002
> [ 407.854055] RAX: 0000000000080101 RBX: 0000000000000086 RCX:
> 0000000000000001
> [ 407.854056] RDX: 0000000000000101 RSI: 0000000000000001 RDI:
> ffff9d386e6202b8
> [ 407.854057] RBP: ffff9d3901403bd8 R08: 0000000000000101 R09:
> 0000000000000000
> [ 407.854057] R10: 0000000000000356 R11: 0000000000000046 R12:
> ffff9d386e620000
> [ 407.854058] R13: 0000000000767600 R14: ffff9d386e699000 R15:
> 000000000000001d
> [ 407.854059] FS: 0000000000000000(0000) GS:ffff9d3901400000(0000)
> knlGS:0000000000000000
> [ 407.854060] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 407.854061] CR2: 00007ffcf041e090 CR3: 00000008a160a003 CR4:
> 00000000003606f0
> [ 407.854273] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [ 407.854275] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
> 0000000000000400
> [ 407.854275] Call Trace:
> [ 407.854276] <IRQ>
> [ 407.854280] _raw_spin_lock_irqsave+0x37/0x40
> [ 407.854291] drbd_rs_complete_io+0x3e/0x150 [drbd]
> [ 407.854298] drbd_endio_write_sec_final+0x3c5/0x450 [drbd]
> [ 407.854304] drbd_peer_request_endio+0x160/0x3c0 [drbd]
> [ 407.854305] bio_endio+0xa2/0x120
> [ 407.854308] dec_pending+0x124/0x250
> [ 407.854310] clone_endio+0x88/0x130
> [ 407.854311] bio_endio+0xa2/0x120
> [ 407.854312] blk_update_request+0x98/0x2d0
> [ 407.854314] blk_mq_end_request+0x1e/0x90
> [ 407.854316] nvme_complete_rq+0x23/0x120
> [ 407.854318] nvme_pci_complete_rq+0x7a/0x130
> [ 407.854320] __blk_mq_complete_request+0x99/0x150
> [ 407.854321] blk_mq_complete_request+0x17/0x20
> [ 407.854323] nvme_process_cq+0xe1/0x1b0
> [ 407.854325] nvme_irq+0x23/0x50
> [ 407.854326] __handle_irq_event_percpu+0x84/0x1a0
> [ 407.854328] handle_irq_event_percpu+0x32/0x80
> [ 407.854330] handle_irq_event+0x3b/0x60
> [ 407.854331] handle_edge_irq+0x78/0x1a0
> [ 407.854333] handle_irq+0x20/0x30
> [ 407.854335] do_IRQ+0x4e/0xd0
> [ 407.854336] common_interrupt+0x84/0x84
> [ 407.854337] </IRQ>
> [ 407.854339] RIP: 0010:_raw_spin_lock+0x10/0x30
> [ 407.854339] RSP: 0018:ffffb586081c7d70 EFLAGS: 00000246 ORIG_RAX:
> ffffffffffffffdc
> [ 407.854341] RAX: 0000000000000000 RBX: ffff9d3856c82000 RCX:
> 0000000000000000
> [ 407.854341] RDX: 0000000000000001 RSI: 00000000000122e7 RDI:
> ffff9d386e6202b8
> [ 407.854342] RBP: ffffb586081c7e50 R08: 0000000000001000 R09:
> ffff9d386e620000
> [ 407.854343] R10: ffff9d388a6a97e8 R11: ffff9d386e699000 R12:
> ffff9d386e699000
> [ 407.854343] R13: ffff9d386e620000 R14: ffff9d386e6202b8 R15:
> ffff9d388a6a97e8
> [ 407.854351] ? receive_Data+0x6d3/0x15b0 [drbd]
> [ 407.854353] ? dtt_recv+0xd8/0x180 [drbd_transport_tcp]
> [ 407.854360] ? receive_RSDataReply+0x370/0x370 [drbd]
> [ 407.854365] ? receive_RSDataReply+0x370/0x370 [drbd]
> [ 407.854371] drbd_receiver+0x45c/0x6a0 [drbd]
> [ 407.854379] drbd_thread_setup+0x79/0x190 [drbd]
> [ 407.854381] kthread+0x105/0x140
> [ 407.854387] ? __drbd_next_peer_device_ref+0x170/0x170 [drbd]
> [ 407.854389] ? kthread_create_worker_on_cpu+0x70/0x70
> [ 407.854391] ? do_syscall_64+0x73/0x130
> [ 407.854392] ? SyS_exit_group+0x14/0x20
> [ 407.854394] ret_from_fork+0x35/0x40
>
>
>
> -------------------------------------------------------------------------------
>
>
> [ 524.920614] NMI watchdog: Watchdog detected hard LOCKUP on cpu 0
> [ 531.795413] NMI watchdog: Watchdog detected hard LOCKUP on cpu 2
> [ 588.202242] watchdog: BUG: soft lockup - CPU#1 stuck for 22s!
> [sensors:13479]
> [ 589.130264] Kernel panic - not syncing: softlockup: hung tasks
> [ 589.412765] CPU: 1 PID: 13479 Comm: sensors Tainted: P O
> L 4.15.18-5-pve #1
> [ 589.800666] Hardware name: HP ProLiant m710x Server
> Cartridge/ProLiant m710x Server Cartridge, BIOS H07 05/10/2018
> [ 590.302717] Call Trace:
> [ 590.420675] <IRQ>
> [ 590.517554] dump_stack+0x63/0x8b
> [ 590.677690] panic+0xe4/0x244
> [ 590.821054] watchdog_timer_fn+0x21c/0x230
> [ 591.019107] ? watchdog+0x30/0x30
> [ 591.179362] __hrtimer_run_queues+0xe7/0x220
> [ 591.385849] hrtimer_interrupt+0xa3/0x1e0
> [ 591.579709] smp_apic_timer_interrupt+0x6f/0x130
> [ 591.803262] apic_timer_interrupt+0x84/0x90
> [ 592.005528] </IRQ>
> [ 592.107069] RIP: 0010:smp_call_function_single+0xdd/0x100
> [ 592.368500] RSP: 0018:ffffb7b2a482bca0 EFLAGS: 00000202 ORIG_RAX:
> ffffffffffffff11
> [ 592.735159] RAX: 0000000000000000 RBX: ffffb7b2a482bd6c RCX:
> 0000000000000830
> [ 593.081059] RDX: 0000000000000001 RSI: 00000000000008fb RDI:
> 0000000000000830
> [ 593.427696] RBP: ffffb7b2a482bcf0 R08: ffff8935adb2fc18 R09:
> ffff8935a388f9c0
> [ 593.773919] R10: ffffb7b2a482bd20 R11: 0000000000000000 R12:
> ffffb7b2a482bd68
> [ 594.119842] R13: ffff8935c1a63000 R14: 0000000000000001 R15:
> ffff8935c0254100
> [ 594.461694] ? sbitmap_queue_init_node+0x1a0/0x1a0
> [ 594.693704] rdmsr_on_cpu+0x5d/0x90
> [ 594.862401] ? rdmsr_on_cpu+0x5d/0x90
> [ 595.039732] show_crit_alarm+0x59/0xa0 [coretemp]
> [ 595.267472] dev_attr_show+0x23/0x60
> [ 595.440312] ? mutex_lock+0x12/0x40
> [ 595.608969] sysfs_kf_seq_show+0xa2/0x130
> [ 595.802897] kernfs_seq_show+0x27/0x30
> [ 595.984857] seq_read+0x12a/0x430
> [ 596.145125] kernfs_fop_read+0x116/0x180
> [ 596.334749] ? security_file_permission+0xa1/0xc0
> [ 596.562326] __vfs_read+0x1b/0x40
> [ 596.722505] vfs_read+0x96/0x130
> [ 596.874230] SyS_read+0x55/0xc0
> [ 597.025935] do_syscall_64+0x73/0x130
> [ 597.203036] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
> [ 597.447495] RIP: 0033:0x7f71ed58d260
> [ 597.620432] RSP: 002b:00007ffe54e32e48 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000000
> [ 597.986899] RAX: ffffffffffffffda RBX: 0000000000be9880 RCX:
> 00007f71ed58d260
> [ 598.332523] RDX: 0000000000001000 RSI: 0000000000be9ab0 RDI:
> 0000000000000003
> [ 598.678088] RBP: 00007ffe54e33560 R08: 00007f71ed85b278 R09:
> 00007f71edc8d700
> [ 599.024604] R10: 0000000000000000 R11: 0000000000000246 R12:
> 0000000000000000
> [ 599.370916] R13: ffffffffffffff98 R14: 00007f71ed85b420 R15:
> 0000000000be9880
> [ 600.818687] Shutting down cpus with NMI
> [ 601.004760] Kernel Offset: 0x1dc00000 from 0xffffffff81000000
> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [ 601.533984] Rebooting in 10 seconds..
>
>
>
> - kvaps
>
> On Fri, Sep 28, 2018 at 4:06 PM Lars Ellenberg
> <lars.ellenberg at linbit.com> wrote:
> >
> > On Thu, Sep 27, 2018 at 05:49:43PM +0200, kvaps wrote:
> > > Hi, I found out that when I using 9.0.15-1 version of drbd kernel
> > > module, I have softlockup problems quite often.
> > >
> > > For now I have many nodes with 9.0.14-1 and they are working fine.
> > >
> > > When I add new nodes with 9.0.15-1, then distribute old resources on
> > > them, after a while I start having random reboots of the new nodes,
> > > during synchronization.
> > >
> > > New nodes isn't using resources at all, kernel log shows, that it was
> > > tainted on some random processes like systemd, sensors, etc.
> > >
> > > After downgrade to the version to 9.0.14-1, synchronization is
> finishing fine.
> > >
> > > I use 4.15.18-5-pve kernel, and I can provide my kernel stack traces
> > > if you want to.
> >
> > Sure.
> > otherwise this is a non-actionable "$something does not work" report.
> >
> > --
> > : Lars Ellenberg
> > : LINBIT | Keeping the Digital World Running
> > : DRBD -- Heartbeat -- Corosync -- Pacemaker
> >
> > DRBD® and LINBIT® are registered trademarks of LINBIT
> > __
> > please don't Cc me, but send to list -- I'm subscribed
> > _______________________________________________
> > drbd-user mailing list
> > drbd-user at lists.linbit.com
> > http://lists.linbit.com/mailman/listinfo/drbd-user
> _______________________________________________
> drbd-user mailing list
> drbd-user at lists.linbit.com
> http://lists.linbit.com/mailman/listinfo/drbd-user
>
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