Date:   Sat, 28 Oct 2017 00:34:59 +0200
From:   Paweł Staszewski <pstaszewski@...are.pl>
To:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: intel i40e buggy driver question

Hi




I have many problems with 40e driver

memleaks , kernel panics , stack traces , tx hungx , tx timeouts and 
many many others :)


But the main problem that can't be resolved in linux is resolved in freebsd

problem in freebsd with this:

[2501243.181829] i40e 0000:01:00.1 eno2: VSI_seid 390, Hung TX queue 17, 
tx_pending_hw: 1, NTC:0x16b, HWB: 0x16b, NTU: 0x16c, TAIL: 0x16c
[2501243.181835] i40e 0000:01:00.1 eno2: VSI_seid 390, Issuing force_wb 
for TX queue 17, Interrupt Reg: 0x0


Was solved by this:


"

change this piece in ixl_tso_detect_sparse() in ixl_txrx.c:

             if (mss < 1) {
                     if (num > IXL_SPARSE_CHAIN)
                             return (true);
                     num = (mss == 0) ? 0 : 1;
                     mss += mp->m_pkthdr.tso_segsz;
             }

to

             if (num > IXL_SPARSE_CHAIN)
                     return (true);
             if (mss < 1) {
                     num = (mss == 0) ? 0 : 1;
                     mss += mp->m_pkthdr.tso_segsz;
             }

Intel FreeBSD Team: This will definitely prevent MDDs on the buffers you 
sent me.

"


An I have a question - how to do the same in linux ? :)

Cause i have same problem in Linux with this i40e buggy driver:

[224051.287277] WARNING: CPU: 3 PID: 25031 at 
drivers/net/ethernet/intel/i40e/i40e_txrx.c:1248 
i40e_setup_rx_descriptors+0x15/0xa9
[224051.287278] Modules linked in: team_mode_roundrobin team 
x86_pkg_temp_thermal ipmi_si
[224051.287327] CPU: 3 PID: 25031 Comm: ip Tainted: G W       4.12.14 #2
[224051.287330] task: ffff880859e09880 task.stack: ffffc900036ec000
[224051.287332] RIP: 0010:i40e_setup_rx_descriptors+0x15/0xa9
[224051.287332] RSP: 0018:ffffc900036ef6e8 EFLAGS: 00010286
[224051.287333] RAX: ffff8808595eda00 RBX: ffff880856d36d00 RCX: 
014000c000000001
[224051.287334] RDX: 0000000000000001 RSI: ffff880844418000 RDI: 
ffff880856d36d00
[224051.287334] RBP: ffffc900036ef6f8 R08: 000000000001ccc3 R09: 
ffffea0021110620
[224051.287335] R10: 0000000000000000 R11: ffff88087effae90 R12: 
ffff8808590300a0
[224051.287335] R13: 0000000000000002 R14: 00000000fffffff0 R15: 
0000000000000001
[224051.287336] FS:  00007f1e4658b740(0000) GS:ffff88085e2c0000(0000) 
knlGS:0000000000000000
[224051.287337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[224051.287337] CR2: 00007ffd74790000 CR3: 000000059e2f4000 CR4: 
00000000001406e0
[224051.287338] Call Trace:
[224051.287339]  i40e_vsi_open+0x7d/0x1e7
[224051.287341]  i40e_open+0x4d/0xc3
[224051.287342]  __dev_open+0x8b/0xcd
[224051.287344]  __dev_change_flags+0xa2/0x13d
[224051.287346]  dev_change_flags+0x20/0x53
[224051.287347]  do_setlink+0x2d0/0xad6
[224051.287349]  ? zone_statistics+0x5a/0x61
[224051.287350]  ? get_page_from_freelist+0x4c8/0x627
[224051.287352]  rtnl_newlink+0x391/0x6d6
[224051.287353]  ? netdev_master_upper_dev_get+0xd/0x57
[224051.287354]  ? rtnl_newlink+0x106/0x6d6
[224051.287356]  ? alloc_pages_vma+0x8c/0x17a
[224051.287357]  ? pagevec_lru_move_fn+0x20/0xc1
[224051.287359]  ? lru_cache_add_active_or_unevictable+0x27/0x7a
[224051.287360]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.287362]  rtnetlink_rcv_msg+0x166/0x173
[224051.287363]  ? __kmalloc_node_track_caller+0x11f/0x12f
[224051.287365]  ? __alloc_skb+0x89/0x175
[224051.287366]  ? rtnl_newlink+0x6d6/0x6d6
[224051.287367]  netlink_rcv_skb+0x57/0xa0
[224051.287369]  rtnetlink_rcv+0x1e/0x25
[224051.287371]  netlink_unicast+0x103/0x187
[224051.287372]  netlink_sendmsg+0x28d/0x2ad
[224051.287374]  sock_sendmsg_nosec+0x12/0x1d
[224051.287375]  ___sys_sendmsg+0x19d/0x217
[224051.287377]  ? kmem_cache_free+0x4b/0xf3
[224051.287492]  ? alloc_pages_vma+0x147/0x17a
[224051.287494]  ? __page_set_anon_rmap+0x24/0x65
[224051.287495]  ? get_page+0x9/0xf
[224051.287496]  ? __lru_cache_add+0x18/0x47
[224051.287498]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.287499]  __sys_sendmsg+0x40/0x5e
[224051.287564]  ? __sys_sendmsg+0x40/0x5e
[224051.287566]  SyS_sendmsg+0xd/0x17
[224051.287567]  entry_SYSCALL_64_fastpath+0x13/0x94
[224051.287568] RIP: 0033:0x7f1e45cac620
[224051.287569] RSP: 002b:00007ffd7478b4d8 EFLAGS: 00000246 ORIG_RAX: 
000000000000002e
[224051.287570] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 
00007f1e45cac620
[224051.287571] RDX: 0000000000000000 RSI: 00007ffd7478b520 RDI: 
0000000000000003
[224051.287572] RBP: 00007ffd7478b520 R08: 0000000000000001 R09: 
fefefeff77686d74
[224051.287572] R10: 00000000000005e6 R11: 0000000000000246 R12: 
00007ffd7478b560
[224051.287573] R13: 00000000006724c0 R14: 00007ffd747935e0 R15: 
0000000000000000
[224051.287574] Code: 00 00 48 8b 7b 10 e8 41 f2 ff ff 48 c7 43 08 00 00 
00 00 5b 5d c3 55 48 89 e5 41 54 53 48 83 7f 20 00 48 89 fb 4c 8b 67 10 
74 02 <0f> ff 0f b7 7b 44 48 6b ff 18 e8 65 f5 ff ff 48 85 c0 48 89 43
[224051.287597] ---[ end trace a9810da52af61a5a ]---
[224051.287607] ------------[ cut here ]------------
[224051.287609] WARNING: CPU: 3 PID: 25031 at 
drivers/net/ethernet/intel/i40e/i40e_txrx.c:1248 
i40e_setup_rx_descriptors+0x15/0xa9
[224051.287609] Modules linked in: team_mode_roundrobin team 
x86_pkg_temp_thermal ipmi_si
[224051.287612] CPU: 3 PID: 25031 Comm: ip Tainted: G W       4.12.14 #2
[224051.287613] task: ffff880859e09880 task.stack: ffffc900036ec000
[224051.287614] RIP: 0010:i40e_setup_rx_descriptors+0x15/0xa9
[224051.287615] RSP: 0018:ffffc900036ef6e8 EFLAGS: 00010286
[224051.287616] RAX: ffff8808595eda00 RBX: ffff880856d36f00 RCX: 
014000c000000002
[224051.287617] RDX: 0000000000000002 RSI: ffff880590cb4000 RDI: 
ffff880856d36f00
[224051.287618] RBP: ffffc900036ef6f8 R08: 000000000001ccc3 R09: 
ffffea0016432d20
[224051.287618] R10: 0000000000000000 R11: ffff88087effae90 R12: 
ffff8808590300a0
[224051.287619] R13: 0000000000000003 R14: 00000000fffffff0 R15: 
0000000000000001
[224051.287620] FS:  00007f1e4658b740(0000) GS:ffff88085e2c0000(0000) 
knlGS:0000000000000000
[224051.287621] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[224051.287622] CR2: 00007ffd74790000 CR3: 000000059e2f4000 CR4: 
00000000001406e0
[224051.287622] Call Trace:
[224051.287624]  i40e_vsi_open+0x7d/0x1e7
[224051.288201]  i40e_open+0x4d/0xc3
[224051.288203]  __dev_open+0x8b/0xcd
[224051.288205]  __dev_change_flags+0xa2/0x13d
[224051.288207]  dev_change_flags+0x20/0x53
[224051.288208]  do_setlink+0x2d0/0xad6
[224051.288210]  ? zone_statistics+0x5a/0x61
[224051.288212]  ? get_page_from_freelist+0x4c8/0x627
[224051.288213]  rtnl_newlink+0x391/0x6d6
[224051.288215]  ? netdev_master_upper_dev_get+0xd/0x57
[224051.288216]  ? rtnl_newlink+0x106/0x6d6
[224051.288217]  ? alloc_pages_vma+0x8c/0x17a
[224051.288219]  ? pagevec_lru_move_fn+0x20/0xc1
[224051.288220]  ? lru_cache_add_active_or_unevictable+0x27/0x7a
[224051.288221]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.288224]  rtnetlink_rcv_msg+0x166/0x173
[224051.288225]  ? __kmalloc_node_track_caller+0x11f/0x12f
[224051.288227]  ? __alloc_skb+0x89/0x175
[224051.288228]  ? rtnl_newlink+0x6d6/0x6d6
[224051.288230]  netlink_rcv_skb+0x57/0xa0
[224051.288232]  rtnetlink_rcv+0x1e/0x25
[224051.288233]  netlink_unicast+0x103/0x187
[224051.288235]  netlink_sendmsg+0x28d/0x2ad
[224051.288236]  sock_sendmsg_nosec+0x12/0x1d
[224051.288238]  ___sys_sendmsg+0x19d/0x217
[224051.288239]  ? kmem_cache_free+0x4b/0xf3
[224051.288241]  ? alloc_pages_vma+0x147/0x17a
[224051.288242]  ? __page_set_anon_rmap+0x24/0x65
[224051.288244]  ? get_page+0x9/0xf
[224051.288245]  ? __lru_cache_add+0x18/0x47
[224051.288246]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.288249]  __sys_sendmsg+0x40/0x5e
[224051.288250]  ? __sys_sendmsg+0x40/0x5e
[224051.288252]  SyS_sendmsg+0xd/0x17
[224051.288253]  entry_SYSCALL_64_fastpath+0x13/0x94
[224051.288254] RIP: 0033:0x7f1e45cac620
[224051.288255] RSP: 002b:00007ffd7478b4d8 EFLAGS: 00000246 ORIG_RAX: 
000000000000002e
[224051.288256] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 
00007f1e45cac620
[224051.288257] RDX: 0000000000000000 RSI: 00007ffd7478b520 RDI: 
0000000000000003
[224051.288258] RBP: 00007ffd7478b520 R08: 0000000000000001 R09: 
fefefeff77686d74
[224051.288259] R10: 00000000000005e6 R11: 0000000000000246 R12: 
00007ffd7478b560
[224051.288259] R13: 00000000006724c0 R14: 00007ffd747935e0 R15: 
0000000000000000
[224051.288260] Code: 00 00 48 8b 7b 10 e8 41 f2 ff ff 48 c7 43 08 00 00 
00 00 5b 5d c3 55 48 89 e5 41 54 53 48 83 7f 20 00 48 89 fb 4c 8b 67 10 
74 02 <0f> ff 0f b7 7b 44 48 6b ff 18 e8 65 f5 ff ff 48 85 c0 48 89 43
[224051.288284] ---[ end trace a9810da52af61a5b ]---
[224051.288291] ------------[ cut here ]------------
[224051.288293] WARNING: CPU: 3 PID: 25031 at 
drivers/net/ethernet/intel/i40e/i40e_txrx.c:1248 
i40e_setup_rx_descriptors+0x15/0xa9
[224051.288293] Modules linked in: team_mode_roundrobin team 
x86_pkg_temp_thermal ipmi_si
[224051.288295] CPU: 3 PID: 25031 Comm: ip Tainted: G W       4.12.14 #2
[224051.288296] task: ffff880859e09880 task.stack: ffffc900036ec000
[224051.288297] RIP: 0010:i40e_setup_rx_descriptors+0x15/0xa9
[224051.288297] RSP: 0018:ffffc900036ef6e8 EFLAGS: 00010286
[224051.288298] RAX: ffff8808595eda00 RBX: ffff880856d37100 RCX: 
014000c000000003
[224051.288299] RDX: 0000000000000003 RSI: ffff880845df0000 RDI: 
ffff880856d37100
[224051.288300] RBP: ffffc900036ef6f8 R08: 000000000001ccc3 R09: 
ffffea0021177c20
[224051.288300] R10: 0000000000000000 R11: ffff88087effae90 R12: 
ffff8808590300a0
[224051.288301] R13: 0000000000000004 R14: 00000000fffffff0 R15: 
0000000000000001
[224051.288302] FS:  00007f1e4658b740(0000) GS:ffff88085e2c0000(0000) 
knlGS:0000000000000000
[224051.288303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[224051.288303] CR2: 00007ffd74790000 CR3: 000000059e2f4000 CR4: 
00000000001406e0
[224051.288304] Call Trace:
[224051.288306]  i40e_vsi_open+0x7d/0x1e7
[224051.288307]  i40e_open+0x4d/0xc3
[224051.288309]  __dev_open+0x8b/0xcd
[224051.288311]  __dev_change_flags+0xa2/0x13d
[224051.288313]  dev_change_flags+0x20/0x53
[224051.288314]  do_setlink+0x2d0/0xad6
[224051.288315]  ? zone_statistics+0x5a/0x61
[224051.288317]  ? get_page_from_freelist+0x4c8/0x627
[224051.288319]  rtnl_newlink+0x391/0x6d6
[224051.288320]  ? netdev_master_upper_dev_get+0xd/0x57
[224051.288321]  ? rtnl_newlink+0x106/0x6d6
[224051.288322]  ? alloc_pages_vma+0x8c/0x17a
[224051.288323]  ? pagevec_lru_move_fn+0x20/0xc1
[224051.288324]  ? lru_cache_add_active_or_unevictable+0x27/0x7a
[224051.288324]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.288326]  rtnetlink_rcv_msg+0x166/0x173
[224051.288327]  ? __kmalloc_node_track_caller+0x11f/0x12f
[224051.288328]  ? __alloc_skb+0x89/0x175
[224051.288328]  ? rtnl_newlink+0x6d6/0x6d6
[224051.288330]  netlink_rcv_skb+0x57/0xa0
[224051.288331]  rtnetlink_rcv+0x1e/0x25
[224051.288332]  netlink_unicast+0x103/0x187
[224051.288333]  netlink_sendmsg+0x28d/0x2ad
[224051.288334]  sock_sendmsg_nosec+0x12/0x1d
[224051.288335]  ___sys_sendmsg+0x19d/0x217
[224051.288336]  ? kmem_cache_free+0x4b/0xf3
[224051.288337]  ? alloc_pages_vma+0x147/0x17a
[224051.288339]  ? __page_set_anon_rmap+0x24/0x65
[224051.288340]  ? get_page+0x9/0xf
[224051.288341]  ? __lru_cache_add+0x18/0x47
[224051.288342]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.288344]  __sys_sendmsg+0x40/0x5e
[224051.288345]  ? __sys_sendmsg+0x40/0x5e
[224051.288347]  SyS_sendmsg+0xd/0x17
[224051.288349]  entry_SYSCALL_64_fastpath+0x13/0x94
[224051.288349] RIP: 0033:0x7f1e45cac620
[224051.288350] RSP: 002b:00007ffd7478b4d8 EFLAGS: 00000246 ORIG_RAX: 
000000000000002e
[224051.288351] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 
00007f1e45cac620
[224051.288352] RDX: 0000000000000000 RSI: 00007ffd7478b520 RDI: 
0000000000000003
[224051.288353] RBP: 00007ffd7478b520 R08: 0000000000000001 R09: 
fefefeff77686d74
[224051.288353] R10: 00000000000005e6 R11: 0000000000000246 R12: 
00007ffd7478b560
[224051.288354] R13: 00000000006724c0 R14: 00007ffd747935e0 R15: 
0000000000000000
[224051.288355] Code: 00 00 48 8b 7b 10 e8 41 f2 ff ff 48 c7 43 08 00 00 
00 00 5b 5d c3 55 48 89 e5 41 54 53 48 83 7f 20 00 48 89 fb 4c 8b 67 10 
74 02 <0f> ff 0f b7 7b 44 48 6b ff 18 e8 65 f5 ff ff 48 85 c0 48 89 43
[224051.288376] ---[ end trace a9810da52af61a5c ]---
[224051.288382] ------------[ cut here ]------------
[224051.288384] WARNING: CPU: 3 PID: 25031 at 
drivers/net/ethernet/intel/i40e/i40e_txrx.c:1248 
i40e_setup_rx_descriptors+0x15/0xa9
[224051.288384] Modules linked in: team_mode_roundrobin team 
x86_pkg_temp_thermal ipmi_si
[224051.288387] CPU: 3 PID: 25031 Comm: ip Tainted: G W       4.12.14 #2
[224051.288387] task: ffff880859e09880 task.stack: ffffc900036ec000
[224051.288389] RIP: 0010:i40e_setup_rx_descriptors+0x15/0xa9
[224051.288389] RSP: 0018:ffffc900036ef6e8 EFLAGS: 00010286
[224051.288391] RAX: ffff8808595eda00 RBX: ffff880856d37300 RCX: 
014000c000000004
[224051.288391] RDX: 0000000000000004 RSI: ffff88084bf2c000 RDI: 
ffff880856d37300
[224051.288392] RBP: ffffc900036ef6f8 R08: 000000000001ccc3 R09: 
ffffea00212fcb20
[224051.288393] R10: 0000000000000000 R11: ffff88087effae90 R12: 
ffff8808590300a0
[224051.288393] R13: 0000000000000005 R14: 00000000fffffff0 R15: 
0000000000000001
[224051.288394] FS:  00007f1e4658b740(0000) GS:ffff88085e2c0000(0000) 
knlGS:0000000000000000
[224051.288395] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[224051.288396] CR2: 00007ffd74790000 CR3: 000000059e2f4000 CR4: 
00000000001406e0
[224051.288396] Call Trace:
[224051.288398]  i40e_vsi_open+0x7d/0x1e7
[224051.288399]  i40e_open+0x4d/0xc3
[224051.288401]  __dev_open+0x8b/0xcd
[224051.288403]  __dev_change_flags+0xa2/0x13d
[224051.288404]  dev_change_flags+0x20/0x53
[224051.288405]  do_setlink+0x2d0/0xad6
[224051.288406]  ? zone_statistics+0x5a/0x61
[224051.288408]  ? get_page_from_freelist+0x4c8/0x627
[224051.288409]  rtnl_newlink+0x391/0x6d6
[224051.288409]  ? netdev_master_upper_dev_get+0xd/0x57
[224051.288410]  ? rtnl_newlink+0x106/0x6d6
[224051.288411]  ? alloc_pages_vma+0x8c/0x17a
[224051.288412]  ? pagevec_lru_move_fn+0x20/0xc1
[224051.288413]  ? lru_cache_add_active_or_unevictable+0x27/0x7a
[224051.288414]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.288415]  rtnetlink_rcv_msg+0x166/0x173
[224051.288416]  ? __kmalloc_node_track_caller+0x11f/0x12f
[224051.288417]  ? __alloc_skb+0x89/0x175
[224051.288418]  ? rtnl_newlink+0x6d6/0x6d6
[224051.288419]  netlink_rcv_skb+0x57/0xa0
[224051.288421]  rtnetlink_rcv+0x1e/0x25
[224051.288422]  netlink_unicast+0x103/0x187
[224051.288424]  netlink_sendmsg+0x28d/0x2ad
[224051.288425]  sock_sendmsg_nosec+0x12/0x1d
[224051.288426]  ___sys_sendmsg+0x19d/0x217
[224051.288427]  ? kmem_cache_free+0x4b/0xf3
[224051.288429]  ? alloc_pages_vma+0x147/0x17a
[224051.288431]  ? __page_set_anon_rmap+0x24/0x65
[224051.288432]  ? get_page+0x9/0xf
[224051.288433]  ? __lru_cache_add+0x18/0x47
[224051.288434]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.288436]  __sys_sendmsg+0x40/0x5e
[224051.288437]  ? __sys_sendmsg+0x40/0x5e
[224051.288438]  SyS_sendmsg+0xd/0x17
[224051.288439]  entry_SYSCALL_64_fastpath+0x13/0x94
[224051.288440] RIP: 0033:0x7f1e45cac620
[224051.288440] RSP: 002b:00007ffd7478b4d8 EFLAGS: 00000246 ORIG_RAX: 
000000000000002e
[224051.288441] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 
00007f1e45cac620
[224051.288441] RDX: 0000000000000000 RSI: 00007ffd7478b520 RDI: 
0000000000000003
[224051.288442] RBP: 00007ffd7478b520 R08: 0000000000000001 R09: 
fefefeff77686d74
[224051.288442] R10: 00000000000005e6 R11: 0000000000000246 R12: 
00007ffd7478b560
[224051.288443] R13: 00000000006724c0 R14: 00007ffd747935e0 R15: 
0000000000000000
[224051.288444] Code: 00 00 48 8b 7b 10 e8 41 f2 ff ff 48 c7 43 08 00 00 
00 00 5b 5d c3 55 48 89 e5 41 54 53 48 83 7f 20 00 48 89 fb 4c 8b 67 10 
74 02 <0f> ff 0f b7 7b 44 48 6b ff 18 e8 65 f5 ff ff 48 85 c0 48 89 43
[224051.288459] ---[ end trace a9810da52af61a5d ]---
[224051.288467] ------------[ cut here ]------------
[224051.288469] WARNING: CPU: 3 PID: 25031 at 
drivers/net/ethernet/intel/i40e/i40e_txrx.c:1248 
i40e_setup_rx_descriptors+0x15/0xa9
[224051.288470] Modules linked in: team_mode_roundrobin team 
x86_pkg_temp_thermal ipmi_si
[224051.288473] CPU: 3 PID: 25031 Comm: ip Tainted: G W       4.12.14 #2
[224051.288473] task: ffff880859e09880 task.stack: ffffc900036ec000
[224051.288475] RIP: 0010:i40e_setup_rx_descriptors+0x15/0xa9
[224051.288475] RSP: 0018:ffffc900036ef6e8 EFLAGS: 00010286
[224051.288476] RAX: ffff8808595eda00 RBX: ffff880856d37500 RCX: 
014000c000000005
[224051.288477] RDX: 0000000000000005 RSI: ffff880847778000 RDI: 
ffff880856d37500
[224051.288478] RBP: ffffc900036ef6f8 R08: 000000000001ccc3 R09: 
ffffea00211dde20
[224051.288479] R10: 0000000000000000 R11: ffff88087effae90 R12: 
ffff8808590300a0
[224051.288479] R13: 0000000000000006 R14: 00000000fffffff0 R15: 
0000000000000001
[224051.288480] FS:  00007f1e4658b740(0000) GS:ffff88085e2c0000(0000) 
knlGS:0000000000000000
[224051.288481] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[224051.288482] CR2: 00007ffd74790000 CR3: 000000059e2f4000 CR4: 
00000000001406e0
[224051.288482] Call Trace:
[224051.288484]  i40e_vsi_open+0x7d/0x1e7
[224051.288486]  i40e_open+0x4d/0xc3
[224051.288487]  __dev_open+0x8b/0xcd
[224051.288489]  __dev_change_flags+0xa2/0x13d
[224051.288491]  dev_change_flags+0x20/0x53
[224051.288492]  do_setlink+0x2d0/0xad6
[224051.288494]  ? zone_statistics+0x5a/0x61
[224051.288496]  ? get_page_from_freelist+0x4c8/0x627
[224051.288497]  rtnl_newlink+0x391/0x6d6
[224051.288498]  ? netdev_master_upper_dev_get+0xd/0x57
[224051.288499]  ? rtnl_newlink+0x106/0x6d6
[224051.288501]  ? alloc_pages_vma+0x8c/0x17a
[224051.288503]  ? pagevec_lru_move_fn+0x20/0xc1
[224051.288504]  ? lru_cache_add_active_or_unevictable+0x27/0x7a
[224051.288505]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.288507]  rtnetlink_rcv_msg+0x166/0x173
[224051.288509]  ? __kmalloc_node_track_caller+0x11f/0x12f
[224051.288510]  ? __alloc_skb+0x89/0x175
[224051.288511]  ? rtnl_newlink+0x6d6/0x6d6
[224051.288513]  netlink_rcv_skb+0x57/0xa0
[224051.288515]  rtnetlink_rcv+0x1e/0x25
[224051.288516]  netlink_unicast+0x103/0x187
[224051.288518]  netlink_sendmsg+0x28d/0x2ad
[224051.288520]  sock_sendmsg_nosec+0x12/0x1d
[224051.288521]  ___sys_sendmsg+0x19d/0x217
[224051.288523]  ? kmem_cache_free+0x4b/0xf3
[224051.288524]  ? alloc_pages_vma+0x147/0x17a
[224051.288526]  ? __page_set_anon_rmap+0x24/0x65
[224051.288527]  ? get_page+0x9/0xf
[224051.288528]  ? __lru_cache_add+0x18/0x47
[224051.288530]  ? __handle_mm_fault+0x4c1/0x8ae
[224051.288531]  __sys_sendmsg+0x40/0x5e
[224051.288533]  ? __sys_sendmsg+0x40/0x5e
[224051.288534]  SyS_sendmsg+0xd/0x17
[224051.288536]  entry_SYSCALL_64_fastpath+0x13/0x94
[224051.288537] RIP: 0033:0x7f1e45cac620
[224051.288537] RSP: 002b:00007ffd7478b4d8 EFLAGS: 00000246 ORIG_RAX: 
000000000000002e
[224051.288538] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 
00007f1e45cac620
[224051.288539] RDX: 0000000000000000 RSI: 00007ffd7478b520 RDI: 
0000000000000003
[224051.288540] RBP: 00007ffd7478b520 R08: 0000000000000001 R09: 
fefefeff77686d74
[224051.288541] R10: 00000000000005e6 R11: 0000000000000246 R12: 
00007ffd7478b560
[224051.288541] R13: 00000000006724c0 R14: 00007ffd747935e0 R15: 
0000000000000000
[224051.288542] Code: 00 00 48 8b 7b 10 e8 41 f2 ff ff 48 c7 43 08 00 00 
00 00 5b 5d c3 55 48 89 e5 41 54 53 48 83 7f 20 00 48 89 fb 4c 8b 67 10 
74 02 <0f> ff 0f b7 7b 44 48 6b ff 18 e8 65 f5 ff ff 48 85 c0 48 89 43
[224051.288564] ---[ end trace a9810da52af61a5e ]---
[224051.487730] genirq: Flags mismatch irq 64. 00000000 
(i40e-enp2s0f0-TxRx-0) vs. 00000000 (i40e-enp2s0f0-TxRx-0)
[224051.487734] i40e 0000:02:00.0: MSIX request_irq failed, error: -16
[224051.487735] i40e 0000:02:00.0: request_irq failed, Error -16
[224051.854175] i40e 0000:02:00.0: PF reset failed, -15





More here:
https://bugzilla.kernel.org/show_bug.cgi?id=197325





Thanks
Pawel

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