On 1/31/20 1:11 PM, mmo...@disroot.org wrote:
Hi everyone!

Is anyone experiencing this issue on resume (VMs being killed randomly apparently due to clock skew that generates kernel panic) ??
This is happening very often and it makes suspend useless.

I'm using a Lenovo T480s.

Any ideas are really appreciated!

Thanks!

December 22, 2019 8:13 PM, mmo...@disroot.org <mailto:mmo...@disroot.org> wrote:

    Hello,

    I've been struggle with this for months now.
    Whenever there's a resume from suspend some random AppVms are
    killed. Although this doesn't happen all the time it happens often
    enough on resume sufficiently to indicate an issue.
    It seems that the clock skew is too large resulting in a kernel
    panic that kills the AppVM as the error below shows.

    Is anyone experiencing the same issue? Is there any solution to this?

    Thank you in advance.

    /*[38009.358471] clocksource: timekeeping watchdog on CPU0: Marking
    clocksource 'tsc' as unstable because the skew is too large:
    [38009.358521] clocksource: 'xen' wd_now: 2697b2c28a19 wd_last:
    2696858155d9 mask: ffffffffffffffff
    [38009.358558] clocksource: 'tsc' cs_now: ffffff40e6dd060e cs_last:
    4900d58115e2 mask: ffffffffffffffff*
    [38009.358594] tsc: Marking TSC unstable On 1/31/20 1:11 PM, 
mmo...@disroot.org wrote:> Hi everyone!

Is anyone experiencing this issue on resume (VMs being killed randomly apparently due to clock skew that generates kernel panic) ??
This is happening very often and it makes suspend useless.

I'm using a Lenovo T480s.

Any ideas are really appreciated!

Thanks!

December 22, 2019 8:13 PM, mmo...@disroot.org <mailto:mmo...@disroot.org> wrote:

    Hello,

    I've been struggle with this for months now.
    Whenever there's a resume from suspend some random AppVms are
    killed. Although this doesn't happen all the time it happens often
    enough on resume sufficiently to indicate an issue.
    It seems that the clock skew is too large resulting in a kernel
    panic that kills the AppVM as the error below shows.

    Is anyone experiencing the same issue? Is there any solution to this?

    Thank you in advance.

    /*[38009.358471] clocksource: timekeeping watchdog on CPU0: Marking
    clocksource 'tsc' as unstable because the skew is too large:
    [38009.358521] clocksource: 'xen' wd_now: 2697b2c28a19 wd_last:
    2696858155d9 mask: ffffffffffffffff
    [38009.358558] clocksource: 'tsc' cs_now: ffffff40e6dd060e cs_last:
    4900d58115e2 mask: ffffffffffffffff*
    [38009.358594] tsc: Marking TSC unstable due to clocksource watchdog
    [79151.795501] borgmatic[2418]: segfault at 6060cafd8549 ip
    00006060ca2ae054 sp 00007ffe9d9bbad8 error 4 in
    python3.5[6060ca158000+3f0000]
    [79151.795535] Code: 08 4c 8b 5e 08 4c 89 5b f0 4c 89 4e 08 4d 89 0b
    48 89 73 e8 4c 89 43 f8 eb 92 66 90 66 2e 0f 1f 84 00 00 00 00 00 48
    8b 47 08 <f6> 80 a9 00 00 00 40 75 03 31 c0 c3 53 48 8b 80 48 01 00
    00 48 89
    [79152.712396] general protection fault: 0000 [#1] SMP PTI
    [79152.712416] CPU: 1 PID: 2425 Comm: systemctl Tainted: G O
    4.19.84-1.pvops.qubes.x86_64 #1
    [79152.712444] RIP: 0010:__pv_queued_spin_lock_slowpath+0x199/0x270
    [79152.712462] Code: eb bd 83 e0 03 c1 ea 12 4c 8d 6d 44 48 c1 e0 04
    41 be 01 00 00 00 4c 8d a0 80 10 02 00 8d 42 ff 48 98 4c 03 24 c5 20
    77 17 82 <49> 89 2c 24 b8 00 80 00 00 eb 15 84 c0 75 0a 41 0f b6 54
    24 44 84
    [79152.712509] RSP: 0018:ffffc900006c7b60 EFLAGS: 00010002
    [79152.712524] RAX: 0000000000003ffe RBX: ffff8880f47b0764 RCX:
    0000000000000001
    [79152.712544] RDX: 0000000000003fff RSI: 0000000000000000 RDI:
    ffff8880f47b0764
    [79152.712565] RBP: ffff8880f5b21080 R08: 0000000000000000 R09:
    ffffc90000637e90
    [79152.712585] R10: ffffc900006c7e20 R11: 0000000000000001 R12:
    64616f6c00708019
    [79152.712605] R13: ffff8880f5b210c4 R14: 0000000000000001 R15:
    0000000000080000
    [79152.712626] FS: 0000000000000000(0000) GS:ffff8880f5b00000(0000)
    knlGS:0000000000000000
    [79152.712647] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [79152.712664] CR2: 00007f088e3efab4 CR3: 000000000220a004 CR4:
    00000000003606e0
    [79152.712687] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
    0000000000000000
    [79152.712707] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
    0000000000000400
    [79152.712727] Call Trace:
    [79152.712739] _raw_spin_lock_irqsave+0x32/0x40
    [79152.712755] try_to_wake_up+0x3d/0x490
    [79152.712767] __wake_up_common+0x96/0x180
    [79152.712780] ep_poll_callback+0x1ac/0x2f0
    [79152.712791] __wake_up_common+0x96/0x180
    [79152.712803] __wake_up_common_lock+0x7c/0xc0
    [79152.712819] sock_def_wakeup+0x32/0x40
    [79152.712831] unix_release_sock+0x288/0x2d0
    [79152.712844] unix_release+0x19/0x30
    [79152.712855] __sock_release+0x3d/0xc0
    [79152.712866] sock_close+0x11/0x20
    [79152.712878] __fput+0xe2/0x210
    [79152.712891] task_work_run+0x8a/0xb0
    [79152.712903] do_exit+0x2eb/0xc30
    [79152.712915] ? __do_page_fault+0x278/0x4f0
    [79152.712926] do_group_exit+0x3a/0xa0
    [79152.712938] __x64_sys_exit_group+0x14/0x20
    [79152.716375] do_syscall_64+0x5b/0x190
    [79152.716391] entry_SYSCALL_64_after_hwframe+0x44/0xa9
    [79152.716407] RIP: 0033:0x7f088fac8618
    [79152.716422] Code: Bad RIP value.
    [79152.716433] RSP: 002b:00007fffd239eba8 EFLAGS: 00000246 ORIG_RAX:
    00000000000000e7
    [79152.716455] RAX: ffffffffffffffda RBX: 0000000000000000 RCX:
    00007f088fac8618
    [79152.716475] RDX: 0000000000000000 RSI: 000000000000003c RDI:
    0000000000000000
    [79152.716496] RBP: 00007f088fda58e0 R08: 00000000000000e7 R09:
    fffffffffffffee8
    [79152.716516] R10: 00007f088df83158 R11: 0000000000000246 R12:
    00007f088fda58e0
    [79152.716537] R13: 00007f088fdaac20 R14: 0000000000000000 R15:
    0000000000000000
    [79152.716558] Modules linked in: ip6table_filter ip6_tables
    xt_conntrack ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat
    nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c binfmt_misc
    intel_rapl crct10dif_pclmul crc32_pclmul crc32c_intel
    ghash_clmulni_intel xen_netfront intel_rapl_perf snd_pcm snd_timer
    snd soundcore pcspkr xen_netback u2mfn(O) xen_gntdev xen_gntalloc
    xen_blkback xen_evtchn parport_pc xenfs ppdev xen_privcmd lp parport
    overlay xen_blkfront
    [79152.716680] ---[ end trace 1f4d28c382e93215 ]---
    [79152.716703] RIP: 0010:__pv_queued_spin_lock_slowpath+0x199/0x270
    [79152.716721] Code: eb bd 83 e0 03 c1 ea 12 4c 8d 6d 44 48 c1 e0 04
    41 be 01 00 00 00 4c 8d a0 80 10 02 00 8d 42 ff 48 98 4c 03 24 c5 20
    77 17 82 <49> 89 2c 24 b8 00 80 00 00 eb 15 84 c0 75 0a 41 0f b6 54
    24 44 84
    [79152.716768] RSP: 0018:ffffc900006c7b60 EFLAGS: 00010002
    [79152.716782] RAX: 0000000000003ffe RBX: ffff8880f47b0764 RCX:
    0000000000000001
    [79152.716803] RDX: 0000000000003fff RSI: 0000000000000000 RDI:
    ffff8880f47b0764
    [79152.716823] RBP: ffff8880f5b21080 R08: 0000000000000000 R09:
    ffffc90000637e90
    [79152.716844] R10: ffffc900006c7e20 R11: 0000000000000001 R12:
    64616f6c00708019On 1/31/20 1:11 PM, mmo...@disroot.org wrote:> Hi everyone!

Is anyone experiencing this issue on resume (VMs being killed randomly apparently due to clock skew that generates kernel panic) ??
This is happening very often and it makes suspend useless.

I'm using a Lenovo T480s.

Any ideas are really appreciated!

Thanks!

December 22, 2019 8:13 PM, mmo...@disroot.org <mailto:mmo...@disroot.org> wrote:

    Hello,

    I've been struggle with this for months now.
    Whenever there's a resume from suspend some random AppVms are
    killed. Although this doesn't happen all the time it happens often
    enough on resume sufficiently to indicate an issue.
    It seems that the clock skew is too large resulting in a kernel
    panic that kills the AppVM as the error below shows.

    Is anyone experiencing the same issue? Is there any solution to this?

    Thank you in advance.

    /*[38009.358471] clocksource: timekeeping watchdog on CPU0: Marking
    clocksource 'tsc' as unstable because the skew is too large:
    [38009.358521] clocksource: 'xen' wd_now: 2697b2c28a19 wd_last:
    2696858155d9 mask: ffffffffffffffff
    [38009.358558] clocksource: 'tsc' cs_now: ffffff40e6dd060e cs_last:
    4900d58115e2 mask: ffffffffffffffff*
    [38009.358594] tsc: Marking TSC unstable due to clocksource watchdog
    [79151.795501] borgmatic[2418]: segfault at 6060cafd8549 ip
    00006060ca2ae054 sp 00007ffe9d9bbad8 error 4 in
    python3.5[6060ca158000+3f0000]
    [79151.795535] Code: 08 4c 8b 5e 08 4c 89 5b f0 4c 89 4e 08 4d 89 0b
    48 89 73 e8 4c 89 43 f8 eb 92 66 90 66 2e 0f 1f 84 00 00 00 00 00 48
    8b 47 08 <f6> 80 a9 00 00 00 40 75 03 31 c0 c3 53 48 8b 80 48 01 00
    00 48 89
    [79152.712396] general protection fault: 0000 [#1] SMP PTI
    [79152.712416] CPU: 1 PID: 2425 Comm: systemctl Tainted: G O
    4.19.84-1.pvops.qubes.x86_64 #1
    [79152.712444] RIP: 0010:__pv_queued_spin_lock_slowpath+0x199/0x270
    [79152.712462] Code: eb bd 83 e0 03 c1 ea 12 4c 8d 6d 44 48 c1 e0 04
    41 be 01 00 00 00 4c 8d a0 80 10 02 00 8d 42 ff 48 98 4c 03 24 c5 20
    77 17 82 <49> 89 2c 24 b8 00 80 00 00 eb 15 84 c0 75 0a 41 0f b6 54
    24 44 84
    [79152.712509] RSP: 0018:ffffc900006c7b60 EFLAGS: 00010002
    [79152.712524] RAX: 0000000000003ffe RBX: ffff8880f47b0764 RCX:
    0000000000000001
    [79152.712544] RDX: 0000000000003fff RSI: 0000000000000000 RDI:
    ffff8880f47b0764
    [79152.712565] RBP: ffff8880f5b21080 R08: 0000000000000000 R09:
    ffffc90000637e90
    [79152.712585] R10: ffffc900006c7e20 R11: 0000000000000001 R12:
    64616f6c00708019
    [79152.712605] R13: ffff8880f5b210c4 R14: 0000000000000001 R15:
    0000000000080000
    [79152.712626] FS: 0000000000000000(0000) GS:ffff8880f5b00000(0000)
    knlGS:0000000000000000
    [79152.712647] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [79152.712664] CR2: 00007f088e3efab4 CR3: 000000000220a004 CR4:
    00000000003606e0
    [79152.712687] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
    0000000000000000
    [79152.712707] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
    0000000000000400
    [79152.712727] Call Trace:
    [79152.712739] _raw_spin_lock_irqsave+0x32/0x40
    [79152.712755] try_to_wake_up+0x3d/0x490
    [79152.712767] __wake_up_common+0x96/0x180
    [79152.712780] ep_poll_callback+0x1ac/0x2f0
    [79152.712791] __wake_up_common+0x96/0x180
    [79152.712803] __wake_up_common_lock+0x7c/0xc0
    [79152.712819] sock_def_wakeup+0x32/0x40
    [79152.712831] unix_release_sock+0x288/0x2d0
    [79152.712844] unix_release+0x19/0x30
    [79152.712855] __sock_release+0x3d/0xc0
    [79152.712866] sock_close+0x11/0x20
    [79152.712878] __fput+0xe2/0x210
    [79152.712891] task_work_run+0x8a/0xb0
    [79152.712903] do_exit+0x2eb/0xc30
    [79152.712915] ? __do_page_fault+0x278/0x4f0
    [79152.712926] do_group_exit+0x3a/0xa0
    [79152.712938] __x64_sys_exit_group+0x14/0x20
    [79152.716375] do_syscall_64+0x5b/0x190
    [79152.716391] entry_SYSCALL_64_after_hwframe+0x44/0xa9
    [79152.716407] RIP: 0033:0x7f088fac8618
    [79152.716422] Code: Bad RIP value.
    [79152.716433] RSP: 002b:00007fffd239eba8 EFLAGS: 00000246 ORIG_RAX:
    00000000000000e7
    [79152.716455] RAX: ffffffffffffffda RBX: 0000000000000000 RCX:
    00007f088fac8618
    [79152.716475] RDX: 0000000000000000 RSI: 000000000000003c RDI:
    0000000000000000
    [79152.716496] RBP: 00007f088fda58e0 R08: 00000000000000e7 R09:
    fffffffffffffee8
    [79152.716516] R10: 00007f088df83158 R11: 0000000000000246 R12:
    00007f088fda58e0
    [79152.716537] R13: 00007f088fdaac20 R14: 0000000000000000 R15:
    0000000000000000
    [79152.716558] Modules linked in: ip6table_filter ip6_tables
    xt_conntrack ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat
    nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c binfmt_misc
    intel_rapl crct10dif_pclmul crc32_pclmul crc32c_intel
    ghash_clmulni_intel xen_netfront intel_rapl_perf snd_pcm snd_timer
    snd soundcore pcspkr xen_netback u2mfn(O) xen_gntdev xen_gntalloc
    xen_blkback xen_evtchn parport_pc xenfs ppdev xen_privcmd lp parport
    overlay xen_blkfront
    [79152.716680] ---[ end trace 1f4d28c382e93215 ]---
    [79152.716703] RIP: 0010:__pv_queued_spin_lock_slowpath+0x199/0x270
    [79152.716721] Code: eb bd 83 e0 03 c1 ea 12 4c 8d 6d 44 48 c1 e0 04
    41 be 01 00 00 00 4c 8d a0 80 10 02 00 8d 42 ff 48 98 4c 03 24 c5 20
    77 17 82 <49> 89 2c 24 b8 00 80 00 00 eb 15 84 c0 75 0a 41 0f b6 54
    24 44 84
    [79152.716768] RSP: 0018:ffffc900006c7b60 EFLAGS: 00010002
    [79152.716782] RAX: 0000000000003ffe RBX: ffff8880f47b0764 RCX:
    0000000000000001
    [79152.716803] RDX: 0000000000003fff RSI: 0000000000000000 RDI:
    ffff8880f47b0764
    [79152.716823] RBP: ffff8880f5b21080 R08: 0000000000000000 R09:
    ffffc90000637e90
    [79152.716844] R10: ffffc900006c7e20 R11: 0000000000000001 R12:
    64616f6c00708019
    [79152.716864] R13: ffff8880f5b210c4 R14: 0000000000000001 R15:
    0000000000080000
    [79152.716885] FS: 0000000000000000(0000) GS:ffff8880f5b00000(0000)
    knlGS:0000000000000000
    [79152.716906] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [79152.716923] CR2: 00007f088fac85ee CR3: 000000000220a004 CR4:
    00000000003606e0
    [79152.716946] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
    0000000000000000
    [79152.716967] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
    0000000000000400
    *[79152.716987] Kernel panic - not syncing: Fatal exception*
[79152.717276] Kernel OffseThe tsc warnings happen a long time before the segfault, which looks like

    [79152.716864] R13: ffff8880f5b210c4 R14: 0000000000000001 R15:
    0000000000080000
    [79152.716885] FS: 0000000000000000(0000) GS:ffff8880f5b00000(0000)
    knlGS:0000000000000000
    [79152.716906] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [79152.716923] CR2: 00007f088fac85ee CR3: 000000000220a004 CR4:
    00000000003606e0
    [79152.716946] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
    0000000000000000
    [79152.716967] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
    0000000000000400
    *[79152.716987] Kernel panic - not syncing: Fatal exception*
[79152.717276] Kernel OffseThe tsc warnings happen a long time before the segfault, which looks like
due to clocksource watchdog
    [79151.795501] borgmatic[2418]: segfault at 6060cafd8549 ip
    00006060ca2ae054 sp 00007ffe9d9bbad8 error 4 in
    python3.5[6060ca158000+3f0000]
    [79151.795535] Code: 08 4c 8b 5e 08 4c 89 5b f0 4c 89 4e 08 4d 89 0b
    48 89 73 e8 4c 89 43 f8 eb 92 66 90 66 2e 0f 1f 84 00 00 00 00 00 48
    8b 47 08 <f6> 80 a9 00 00 00 40 75 03 31 c0 c3 53 48 8b 80 48 01 00
    00 48 89
    [79152.712396] general protection fault: 0000 [#1] SMP PTI
    [79152.712416] CPU: 1 PID: 2425 Comm: systemctl Tainted: G O
    4.19.84-1.pvops.qubes.x86_64 #1
    [79152.712444] RIP: 0010:__pv_queued_spin_lock_slowpath+0x199/0x270
    [79152.712462] Code: eb bd 83 e0 03 c1 ea 12 4c 8d 6d 44 48 c1 e0 04
    41 be 01 00 00 00 4c 8d a0 80 10 02 00 8d 42 ff 48 98 4c 03 24 c5 20
    77 17 82 <49> 89 2c 24 b8 00 80 00 00 eb 15 84 c0 75 0a 41 0f b6 54
    24 44 84
    [79152.712509] RSP: 0018:ffffc900006c7b60 EFLAGS: 00010002
    [79152.712524] RAX: 0000000000003ffe RBX: ffff8880f47b0764 RCX:
    0000000000000001
    [79152.712544] RDX: 0000000000003fff RSI: 0000000000000000 RDI:
    ffff8880f47b0764
    [79152.712565] RBP: ffff8880f5b21080 R08: 0000000000000000 R09:
    ffffc90000637e90
    [79152.712585] R10: ffffc900006c7e20 R11: 0000000000000001 R12:
    64616f6c00708019
    [79152.712605] R13: ffff8880f5b210c4 R14: 0000000000000001 R15:
    0000000000080000
    [79152.712626] FS: 0000000000000000(0000) GS:ffff8880f5b00000(0000)
    knlGS:0000000000000000
    [79152.712647] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [79152.712664] CR2: 00007f088e3efab4 CR3: 000000000220a004 CR4:
    00000000003606e0
    [79152.712687] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
    0000000000000000
    [79152.712707] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
    0000000000000400
    [79152.712727] Call Trace:
    [79152.712739] _raw_spin_lock_irqsave+0x32/0x40
    [79152.712755] try_to_wake_up+0x3d/0x490
    [79152.712767] __wake_up_common+0x96/0x180
    [79152.712780] ep_poll_callback+0x1ac/0x2f0
    [79152.712791] __wake_up_common+0x96/0x180
    [79152.712803] __wake_up_common_lock+0x7c/0xc0
    [79152.712819] sock_def_wakeup+0x32/0x40
    [79152.712831] unix_release_sock+0x288/0x2d0
    [79152.712844] unix_release+0x19/0x30
    [79152.712855] __sock_release+0x3d/0xc0
    [79152.712866] sock_close+0x11/0x20
    [79152.712878] __fput+0xe2/0x210
    [79152.712891] task_work_run+0x8a/0xb0
    [79152.712903] do_exit+0x2eb/0xc30
    [79152.712915] ? __do_page_fault+0x278/0x4f0
    [79152.712926] do_group_exit+0x3a/0xa0
    [79152.712938] __x64_sys_exit_group+0x14/0x20
    [79152.716375] do_syscall_64+0x5b/0x190
    [79152.716391] entry_SYSCALL_64_after_hwframe+0x44/0xa9
    [79152.716407] RIP: 0033:0x7f088fac8618
    [79152.716422] Code: Bad RIP value.
    [79152.716433] RSP: 002b:00007fffd239eba8 EFLAGS: 00000246 ORIG_RAX:
    00000000000000e7
    [79152.716455] RAX: ffffffffffffffda RBX: 0000000000000000 RCX:
    00007f088fac8618
    [79152.716475] RDX: 0000000000000000 RSI: 000000000000003c RDI:
    0000000000000000
    [79152.716496] RBP: 00007f088fda58e0 R08: 00000000000000e7 R09:
    fffffffffffffee8
    [79152.716516] R10: 00007f088df83158 R11: 0000000000000246 R12:
    00007f088fda58e0
    [79152.716537] R13: 00007f088fdaac20 R14: 0000000000000000 R15:
    0000000000000000
    [79152.716558] Modules linked in: ip6table_filter ip6_tables
    xt_conntrack ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat
    nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c binfmt_misc
    intel_rapl crct10dif_pclmul crc32_pclmul crc32c_intel
    ghash_clmulni_intel xen_netfront intel_rapl_perf snd_pcm snd_timer
    snd soundcore pcspkr xen_netback u2mfn(O) xen_gntdev xen_gntalloc
    xen_blkback xen_evtchn parport_pc xenfs ppdev xen_privcmd lp parport
    overlay xen_blkfront
    [79152.716680] ---[ end trace 1f4d28c382e93215 ]---
    [79152.716703] RIP: 0010:__pv_queued_spin_lock_slowpath+0x199/0x270
    [79152.716721] Code: eb bd 83 e0 03 c1 ea 12 4c 8d 6d 44 48 c1 e0 04
    41 be 01 00 00 00 4c 8d a0 80 10 02 00 8d 42 ff 48 98 4c 03 24 c5 20
    77 17 82 <49> 89 2c 24 b8 00 80 00 00 eb 15 84 c0 75 0a 41 0f b6 54
    24 44 84
    [79152.716768] RSP: 0018:ffffc900006c7b60 EFLAGS: 00010002
    [79152.716782] RAX: 0000000000003ffe RBX: ffff8880f47b0764 RCX:
    0000000000000001
    [79152.716803] RDX: 0000000000003fff RSI: 0000000000000000 RDI:
    ffff8880f47b0764
    [79152.716823] RBP: ffff8880f5b21080 R08: 0000000000000000 R09:
    ffffc90000637e90
    [79152.716844] R10: ffffc900006c7e20 R11: 0000000000000001 R12:
    64616f6c00708019
    [79152.716864] R13: ffff8880f5b210c4 R14: 0000000000000001 R15:
    0000000000080000
    [79152.716885] FS: 0000000000000000(0000) GS:ffff8880f5b00000(0000)
    knlGS:0000000000000000
    [79152.716906] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [79152.716923] CR2: 00007f088fac85ee CR3: 000000000220a004 CR4:
    00000000003606e0
    [79152.716946] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
    0000000000000000
    [79152.716967] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
    0000000000000400
    *[79152.716987] Kernel panic - not syncing: Fatal exception*
    [79152.717276] Kernel Offset: disabled/



The tsc warnings happen some time before the segfault appears.

Rather, the segfault mentions python3.5 and systemctl, and the
code lines show that the kernel is trying to close a socket.

Also, the line
  "[79152.712416] CPU: 1 PID: 2425 Comm: systemctl Tainted: G O"
is showing that a non-linux module has been loaded (the "O").  Do
you have a proprietary module that you load? (graphics, or network
drivers?).  If you can try without those it may help.

Mike.

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