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Message #42031
[Bug 1960059] [NEW] linux-4.4 scheduling while atomic on azure
Public bug reported:
[ 11.338145] BUG: scheduling while atomic: systemd-udevd/891/0x00000002
[ 11.343832] Modules linked in: edac_core mlx4_core(+) kvm_intel input_leds kvm irqbypass nf_conntrack_ipv4 serio_raw hv_balloon pci_hyperv i2c_piix4 nf_defrag_ipv4 8250_fintek xt_conntrack joydev nf_conntrack mac_hid xt_owner xt_tcpudp iptable_security ip_tables x_tables ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic hid_hyperv hv_utils ptp hv_storvsc hyperv_keyboard hid hv_netvsc pps_core scsi_transport_fc hyperv_fb crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper psmouse pata_acpi cryptd hv_vmbus floppy fjes
[ 11.343869] CPU: 10 PID: 891 Comm: systemd-udevd Not tainted 4.4.0-219-lowlatency #252-Ubuntu
[ 11.343870] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090008 12/07/2018
[ 11.343872] 0000000000000286 1002a46b615445cb ffff881095a8f598 ffffffff81861c01
[ 11.343874] ffff88109f096280 0000000000000000 ffff881095a8f5a8 ffffffff810ac88b
[ 11.343876] ffff881095a8f5f8 ffffffff8186c241 ffff881095a8f5c8 ffffffff0000000a
[ 11.343877] Call Trace:
[ 11.343883] [<ffffffff81861c01>] dump_stack+0x6d/0x8b
[ 11.343887] [<ffffffff810ac88b>] __schedule_bug+0x4b/0x60
[ 11.343890] [<ffffffff8186c241>] __schedule+0x641/0x830
[ 11.343892] [<ffffffff8186c46c>] schedule+0x3c/0x90
[ 11.343894] [<ffffffff8186f86d>] schedule_timeout+0x21d/0x2b0
[ 11.343896] [<ffffffff8186da55>] wait_for_completion+0xa5/0x120
[ 11.343899] [<ffffffff810b2ca0>] ? wake_up_q+0x70/0x70
[ 11.343902] [<ffffffffc03b6116>] hv_compose_msi_msg+0x1d6/0x290 [pci_hyperv]
[ 11.343904] [<ffffffffc03b5150>] ? put_hvpcibus+0x20/0x20 [pci_hyperv]
[ 11.343908] [<ffffffff810e726b>] irq_chip_compose_msi_msg+0x4b/0x60
[ 11.343910] [<ffffffff810eb64c>] msi_domain_activate+0x2c/0x70
[ 11.343912] [<ffffffff810ea054>] irq_domain_activate_irq+0x44/0x50
[ 11.343914] [<ffffffff810e6878>] irq_startup+0x38/0x90
[ 11.343916] [<ffffffff810e5142>] __setup_irq+0x5a2/0x650
[ 11.343928] [<ffffffffc074915d>] ? mlx4_free_cmd_mailbox+0x2d/0x40 [mlx4_core]
[ 11.343932] [<ffffffff811fb8fd>] ? kmem_cache_alloc_trace+0x1ed/0x210
[ 11.343940] [<ffffffffc0750590>] ? mlx4_interrupt+0x80/0x80 [mlx4_core]
[ 11.343942] [<ffffffff810e538b>] request_threaded_irq+0xfb/0x1a0
[ 11.343948] [<ffffffffc0751608>] mlx4_init_eq_table+0x3f8/0x630 [mlx4_core]
[ 11.343956] [<ffffffffc075c248>] mlx4_setup_hca+0x1f8/0x770 [mlx4_core]
[ 11.343962] [<ffffffffc075d507>] mlx4_load_one+0xb67/0x1670 [mlx4_core]
[ 11.343967] [<ffffffffc075e538>] mlx4_init_one+0x528/0x6c0 [mlx4_core]
[ 11.343970] [<ffffffff814640ea>] local_pci_probe+0x4a/0xa0
[ 11.343972] [<ffffffff814650f0>] ? pci_match_device+0xe0/0x110
[ 11.343973] [<ffffffff814655b3>] pci_device_probe+0x103/0x150
[ 11.343976] [<ffffffff8157ed0e>] driver_probe_device+0x1be/0x4b0
[ 11.343978] [<ffffffff8157f087>] __driver_attach+0x87/0x90
[ 11.343980] [<ffffffff8157f000>] ? driver_probe_device+0x4b0/0x4b0
[ 11.343982] [<ffffffff8157c992>] bus_for_each_dev+0x72/0xc0
[ 11.343983] [<ffffffff8157e52e>] driver_attach+0x1e/0x20
[ 11.343985] [<ffffffff8157e072>] bus_add_driver+0x1e2/0x280
[ 11.343986] [<ffffffffc078e000>] ? 0xffffffffc078e000
[ 11.343988] [<ffffffff8157fa20>] driver_register+0x60/0xe0
[ 11.343990] [<ffffffff81463a0c>] __pci_register_driver+0x4c/0x50
[ 11.343996] [<ffffffffc078e115>] mlx4_init+0x115/0x1000 [mlx4_core]
[ 11.343998] [<ffffffff81002135>] do_one_initcall+0xb5/0x200
[ 11.344003] [<ffffffff811ddcc5>] ? __vunmap+0xa5/0x100
[ 11.344005] [<ffffffff811fc1c6>] ? kfree+0x166/0x180
[ 11.344007] [<ffffffff8185f6ab>] do_init_module+0x5f/0x1da
[ 11.344010] [<ffffffff811139d2>] load_module+0x1712/0x1c90
[ 11.344012] [<ffffffff8110fd70>] ? __symbol_put+0x70/0x70
[ 11.344014] [<ffffffff81224860>] ? kernel_read+0x50/0x80
[ 11.344016] [<ffffffff81114194>] SYSC_finit_module+0xb4/0xe0
[ 11.344018] [<ffffffff811141de>] SyS_finit_module+0xe/0x10
[ 11.344020] [<ffffffff81870d1b>] entry_SYSCALL_64_fastpath+0x22/0xd0
[ 11.344383] BUG: scheduling while atomic: systemd-udevd/891/0x00000000
[ 11.349908] Modules linked in: edac_core mlx4_core(+) kvm_intel input_leds kvm irqbypass nf_conntrack_ipv4 serio_raw hv_balloon pci_hyperv i2c_piix4 nf_defrag_ipv4 8250_fintek xt_conntrack joydev nf_conntrack mac_hid xt_owner xt_tcpudp iptable_security ip_tables x_tables ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic hid_hyperv hv_utils ptp hv_storvsc hyperv_keyboard hid hv_netvsc pps_core scsi_transport_fc hyperv_fb crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper psmouse pata_acpi cryptd hv_vmbus floppy fjes
[ 11.349951] CPU: 10 PID: 891 Comm: systemd-udevd Tainted: G W 4.4.0-219-lowlatency #252-Ubuntu
[ 11.349953] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090008 12/07/2018
[ 11.349954] 0000000000000286 1002a46b615445cb ffff881095a8f738 ffffffff81861c01
[ 11.349957] ffff88109f096280 0000000000000000 ffff881095a8f748 ffffffff810ac88b
[ 11.349959] ffff881095a8f798 ffffffff8186c241 ffffffff81293b26 ffff88100000000a
[ 11.349961] Call Trace:
[ 11.349967] [<ffffffff81861c01>] dump_stack+0x6d/0x8b
[ 11.349970] [<ffffffff810ac88b>] __schedule_bug+0x4b/0x60
[ 11.349974] [<ffffffff8186c241>] __schedule+0x641/0x830
[ 11.349978] [<ffffffff81293b26>] ? proc_mkdir_data+0x66/0x90
[ 11.349980] [<ffffffff8186c46c>] schedule+0x3c/0x90
[ 11.349983] [<ffffffff8186f779>] schedule_timeout+0x129/0x2b0
[ 11.349986] [<ffffffff810f5bf0>] ? del_timer_sync+0x50/0x50
[ 11.349989] [<ffffffff8186d3be>] wait_for_completion_timeout+0x9e/0x130
[ 11.349991] [<ffffffff810b2ca0>] ? wake_up_q+0x70/0x70
[ 11.350007] [<ffffffffc074a922>] mlx4_comm_cmd+0x1e2/0x350 [mlx4_core]
[ 11.350016] [<ffffffffc074b064>] __mlx4_cmd+0x5d4/0xa00 [mlx4_core]
[ 11.350025] [<ffffffffc0755849>] mlx4_NOP+0x39/0x40 [mlx4_core]
[ 11.350035] [<ffffffffc075c2e9>] mlx4_setup_hca+0x299/0x770 [mlx4_core]
[ 11.350042] [<ffffffffc075d507>] mlx4_load_one+0xb67/0x1670 [mlx4_core]
[ 11.350049] [<ffffffffc075e538>] mlx4_init_one+0x528/0x6c0 [mlx4_core]
[ 11.350052] [<ffffffff814640ea>] local_pci_probe+0x4a/0xa0
[ 11.350054] [<ffffffff814650f0>] ? pci_match_device+0xe0/0x110
[ 11.350056] [<ffffffff814655b3>] pci_device_probe+0x103/0x150
[ 11.350059] [<ffffffff8157ed0e>] driver_probe_device+0x1be/0x4b0
[ 11.350062] [<ffffffff8157f087>] __driver_attach+0x87/0x90
[ 11.350064] [<ffffffff8157f000>] ? driver_probe_device+0x4b0/0x4b0
[ 11.350066] [<ffffffff8157c992>] bus_for_each_dev+0x72/0xc0
[ 11.350068] [<ffffffff8157e52e>] driver_attach+0x1e/0x20
[ 11.350070] [<ffffffff8157e072>] bus_add_driver+0x1e2/0x280
[ 11.350072] [<ffffffffc078e000>] ? 0xffffffffc078e000
[ 11.350074] [<ffffffff8157fa20>] driver_register+0x60/0xe0
[ 11.350076] [<ffffffff81463a0c>] __pci_register_driver+0x4c/0x50
[ 11.350084] [<ffffffffc078e115>] mlx4_init+0x115/0x1000 [mlx4_core]
[ 11.350087] [<ffffffff81002135>] do_one_initcall+0xb5/0x200
[ 11.350090] [<ffffffff811ddcc5>] ? __vunmap+0xa5/0x100
[ 11.350094] [<ffffffff811fc1c6>] ? kfree+0x166/0x180
[ 11.350096] [<ffffffff8185f6ab>] do_init_module+0x5f/0x1da
[ 11.350100] [<ffffffff811139d2>] load_module+0x1712/0x1c90
[ 11.350102] [<ffffffff8110fd70>] ? __symbol_put+0x70/0x70
[ 11.350106] [<ffffffff81224860>] ? kernel_read+0x50/0x80
[ 11.350109] [<ffffffff81114194>] SYSC_finit_module+0xb4/0xe0
[ 11.350111] [<ffffffff811141de>] SyS_finit_module+0xe/0x10
[ 11.350113] [<ffffffff81870d1b>] entry_SYSCALL_64_fastpath+0x22/0xd0
[ 11.370387] mlx4_en: Mellanox ConnectX HCA Ethernet driver v2.2-1 (Feb 2014)
[ 11.370976] mlx4_en 0001:00:02.0: Activating port:1
[ 11.382735] blk_update_request: I/O error, dev fd0, sector 0
[ 11.383648] floppy: error -5 while reading block 0
[ 11.462172] blk_update_request: I/O error, dev fd0, sector 0
[ 11.463084] floppy: error -5 while reading block 0
[ 11.632792] mlx4_en: 0001:00:02.0: Port 1: Using 256 TX rings
[ 11.632795] mlx4_en: 0001:00:02.0: Port 1: Using 8 RX rings
[ 11.632797] mlx4_en: 0001:00:02.0: Port 1: frag:0 - size:1522 prefix:0 stride:1536
[ 11.640259] mlx4_en: 0001:00:02.0: Port 1: Initializing port
[ 11.642243] hv_netvsc 000d3a3a-c481-000d-3a3a-c481000d3a3a eth0: VF registering: eth1
[ 11.646155] mlx4_core 0001:00:02.0 enP1p0s2: renamed from eth1
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Invalid
--
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https://bugs.launchpad.net/bugs/1960059
Title:
linux-4.4 scheduling while atomic on azure
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Xenial:
New
Bug description:
[ 11.338145] BUG: scheduling while atomic: systemd-udevd/891/0x00000002
[ 11.343832] Modules linked in: edac_core mlx4_core(+) kvm_intel input_leds kvm irqbypass nf_conntrack_ipv4 serio_raw hv_balloon pci_hyperv i2c_piix4 nf_defrag_ipv4 8250_fintek xt_conntrack joydev nf_conntrack mac_hid xt_owner xt_tcpudp iptable_security ip_tables x_tables ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic hid_hyperv hv_utils ptp hv_storvsc hyperv_keyboard hid hv_netvsc pps_core scsi_transport_fc hyperv_fb crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper psmouse pata_acpi cryptd hv_vmbus floppy fjes
[ 11.343869] CPU: 10 PID: 891 Comm: systemd-udevd Not tainted 4.4.0-219-lowlatency #252-Ubuntu
[ 11.343870] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090008 12/07/2018
[ 11.343872] 0000000000000286 1002a46b615445cb ffff881095a8f598 ffffffff81861c01
[ 11.343874] ffff88109f096280 0000000000000000 ffff881095a8f5a8 ffffffff810ac88b
[ 11.343876] ffff881095a8f5f8 ffffffff8186c241 ffff881095a8f5c8 ffffffff0000000a
[ 11.343877] Call Trace:
[ 11.343883] [<ffffffff81861c01>] dump_stack+0x6d/0x8b
[ 11.343887] [<ffffffff810ac88b>] __schedule_bug+0x4b/0x60
[ 11.343890] [<ffffffff8186c241>] __schedule+0x641/0x830
[ 11.343892] [<ffffffff8186c46c>] schedule+0x3c/0x90
[ 11.343894] [<ffffffff8186f86d>] schedule_timeout+0x21d/0x2b0
[ 11.343896] [<ffffffff8186da55>] wait_for_completion+0xa5/0x120
[ 11.343899] [<ffffffff810b2ca0>] ? wake_up_q+0x70/0x70
[ 11.343902] [<ffffffffc03b6116>] hv_compose_msi_msg+0x1d6/0x290 [pci_hyperv]
[ 11.343904] [<ffffffffc03b5150>] ? put_hvpcibus+0x20/0x20 [pci_hyperv]
[ 11.343908] [<ffffffff810e726b>] irq_chip_compose_msi_msg+0x4b/0x60
[ 11.343910] [<ffffffff810eb64c>] msi_domain_activate+0x2c/0x70
[ 11.343912] [<ffffffff810ea054>] irq_domain_activate_irq+0x44/0x50
[ 11.343914] [<ffffffff810e6878>] irq_startup+0x38/0x90
[ 11.343916] [<ffffffff810e5142>] __setup_irq+0x5a2/0x650
[ 11.343928] [<ffffffffc074915d>] ? mlx4_free_cmd_mailbox+0x2d/0x40 [mlx4_core]
[ 11.343932] [<ffffffff811fb8fd>] ? kmem_cache_alloc_trace+0x1ed/0x210
[ 11.343940] [<ffffffffc0750590>] ? mlx4_interrupt+0x80/0x80 [mlx4_core]
[ 11.343942] [<ffffffff810e538b>] request_threaded_irq+0xfb/0x1a0
[ 11.343948] [<ffffffffc0751608>] mlx4_init_eq_table+0x3f8/0x630 [mlx4_core]
[ 11.343956] [<ffffffffc075c248>] mlx4_setup_hca+0x1f8/0x770 [mlx4_core]
[ 11.343962] [<ffffffffc075d507>] mlx4_load_one+0xb67/0x1670 [mlx4_core]
[ 11.343967] [<ffffffffc075e538>] mlx4_init_one+0x528/0x6c0 [mlx4_core]
[ 11.343970] [<ffffffff814640ea>] local_pci_probe+0x4a/0xa0
[ 11.343972] [<ffffffff814650f0>] ? pci_match_device+0xe0/0x110
[ 11.343973] [<ffffffff814655b3>] pci_device_probe+0x103/0x150
[ 11.343976] [<ffffffff8157ed0e>] driver_probe_device+0x1be/0x4b0
[ 11.343978] [<ffffffff8157f087>] __driver_attach+0x87/0x90
[ 11.343980] [<ffffffff8157f000>] ? driver_probe_device+0x4b0/0x4b0
[ 11.343982] [<ffffffff8157c992>] bus_for_each_dev+0x72/0xc0
[ 11.343983] [<ffffffff8157e52e>] driver_attach+0x1e/0x20
[ 11.343985] [<ffffffff8157e072>] bus_add_driver+0x1e2/0x280
[ 11.343986] [<ffffffffc078e000>] ? 0xffffffffc078e000
[ 11.343988] [<ffffffff8157fa20>] driver_register+0x60/0xe0
[ 11.343990] [<ffffffff81463a0c>] __pci_register_driver+0x4c/0x50
[ 11.343996] [<ffffffffc078e115>] mlx4_init+0x115/0x1000 [mlx4_core]
[ 11.343998] [<ffffffff81002135>] do_one_initcall+0xb5/0x200
[ 11.344003] [<ffffffff811ddcc5>] ? __vunmap+0xa5/0x100
[ 11.344005] [<ffffffff811fc1c6>] ? kfree+0x166/0x180
[ 11.344007] [<ffffffff8185f6ab>] do_init_module+0x5f/0x1da
[ 11.344010] [<ffffffff811139d2>] load_module+0x1712/0x1c90
[ 11.344012] [<ffffffff8110fd70>] ? __symbol_put+0x70/0x70
[ 11.344014] [<ffffffff81224860>] ? kernel_read+0x50/0x80
[ 11.344016] [<ffffffff81114194>] SYSC_finit_module+0xb4/0xe0
[ 11.344018] [<ffffffff811141de>] SyS_finit_module+0xe/0x10
[ 11.344020] [<ffffffff81870d1b>] entry_SYSCALL_64_fastpath+0x22/0xd0
[ 11.344383] BUG: scheduling while atomic: systemd-udevd/891/0x00000000
[ 11.349908] Modules linked in: edac_core mlx4_core(+) kvm_intel input_leds kvm irqbypass nf_conntrack_ipv4 serio_raw hv_balloon pci_hyperv i2c_piix4 nf_defrag_ipv4 8250_fintek xt_conntrack joydev nf_conntrack mac_hid xt_owner xt_tcpudp iptable_security ip_tables x_tables ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic hid_hyperv hv_utils ptp hv_storvsc hyperv_keyboard hid hv_netvsc pps_core scsi_transport_fc hyperv_fb crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper psmouse pata_acpi cryptd hv_vmbus floppy fjes
[ 11.349951] CPU: 10 PID: 891 Comm: systemd-udevd Tainted: G W 4.4.0-219-lowlatency #252-Ubuntu
[ 11.349953] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090008 12/07/2018
[ 11.349954] 0000000000000286 1002a46b615445cb ffff881095a8f738 ffffffff81861c01
[ 11.349957] ffff88109f096280 0000000000000000 ffff881095a8f748 ffffffff810ac88b
[ 11.349959] ffff881095a8f798 ffffffff8186c241 ffffffff81293b26 ffff88100000000a
[ 11.349961] Call Trace:
[ 11.349967] [<ffffffff81861c01>] dump_stack+0x6d/0x8b
[ 11.349970] [<ffffffff810ac88b>] __schedule_bug+0x4b/0x60
[ 11.349974] [<ffffffff8186c241>] __schedule+0x641/0x830
[ 11.349978] [<ffffffff81293b26>] ? proc_mkdir_data+0x66/0x90
[ 11.349980] [<ffffffff8186c46c>] schedule+0x3c/0x90
[ 11.349983] [<ffffffff8186f779>] schedule_timeout+0x129/0x2b0
[ 11.349986] [<ffffffff810f5bf0>] ? del_timer_sync+0x50/0x50
[ 11.349989] [<ffffffff8186d3be>] wait_for_completion_timeout+0x9e/0x130
[ 11.349991] [<ffffffff810b2ca0>] ? wake_up_q+0x70/0x70
[ 11.350007] [<ffffffffc074a922>] mlx4_comm_cmd+0x1e2/0x350 [mlx4_core]
[ 11.350016] [<ffffffffc074b064>] __mlx4_cmd+0x5d4/0xa00 [mlx4_core]
[ 11.350025] [<ffffffffc0755849>] mlx4_NOP+0x39/0x40 [mlx4_core]
[ 11.350035] [<ffffffffc075c2e9>] mlx4_setup_hca+0x299/0x770 [mlx4_core]
[ 11.350042] [<ffffffffc075d507>] mlx4_load_one+0xb67/0x1670 [mlx4_core]
[ 11.350049] [<ffffffffc075e538>] mlx4_init_one+0x528/0x6c0 [mlx4_core]
[ 11.350052] [<ffffffff814640ea>] local_pci_probe+0x4a/0xa0
[ 11.350054] [<ffffffff814650f0>] ? pci_match_device+0xe0/0x110
[ 11.350056] [<ffffffff814655b3>] pci_device_probe+0x103/0x150
[ 11.350059] [<ffffffff8157ed0e>] driver_probe_device+0x1be/0x4b0
[ 11.350062] [<ffffffff8157f087>] __driver_attach+0x87/0x90
[ 11.350064] [<ffffffff8157f000>] ? driver_probe_device+0x4b0/0x4b0
[ 11.350066] [<ffffffff8157c992>] bus_for_each_dev+0x72/0xc0
[ 11.350068] [<ffffffff8157e52e>] driver_attach+0x1e/0x20
[ 11.350070] [<ffffffff8157e072>] bus_add_driver+0x1e2/0x280
[ 11.350072] [<ffffffffc078e000>] ? 0xffffffffc078e000
[ 11.350074] [<ffffffff8157fa20>] driver_register+0x60/0xe0
[ 11.350076] [<ffffffff81463a0c>] __pci_register_driver+0x4c/0x50
[ 11.350084] [<ffffffffc078e115>] mlx4_init+0x115/0x1000 [mlx4_core]
[ 11.350087] [<ffffffff81002135>] do_one_initcall+0xb5/0x200
[ 11.350090] [<ffffffff811ddcc5>] ? __vunmap+0xa5/0x100
[ 11.350094] [<ffffffff811fc1c6>] ? kfree+0x166/0x180
[ 11.350096] [<ffffffff8185f6ab>] do_init_module+0x5f/0x1da
[ 11.350100] [<ffffffff811139d2>] load_module+0x1712/0x1c90
[ 11.350102] [<ffffffff8110fd70>] ? __symbol_put+0x70/0x70
[ 11.350106] [<ffffffff81224860>] ? kernel_read+0x50/0x80
[ 11.350109] [<ffffffff81114194>] SYSC_finit_module+0xb4/0xe0
[ 11.350111] [<ffffffff811141de>] SyS_finit_module+0xe/0x10
[ 11.350113] [<ffffffff81870d1b>] entry_SYSCALL_64_fastpath+0x22/0xd0
[ 11.370387] mlx4_en: Mellanox ConnectX HCA Ethernet driver v2.2-1 (Feb 2014)
[ 11.370976] mlx4_en 0001:00:02.0: Activating port:1
[ 11.382735] blk_update_request: I/O error, dev fd0, sector 0
[ 11.383648] floppy: error -5 while reading block 0
[ 11.462172] blk_update_request: I/O error, dev fd0, sector 0
[ 11.463084] floppy: error -5 while reading block 0
[ 11.632792] mlx4_en: 0001:00:02.0: Port 1: Using 256 TX rings
[ 11.632795] mlx4_en: 0001:00:02.0: Port 1: Using 8 RX rings
[ 11.632797] mlx4_en: 0001:00:02.0: Port 1: frag:0 - size:1522 prefix:0 stride:1536
[ 11.640259] mlx4_en: 0001:00:02.0: Port 1: Initializing port
[ 11.642243] hv_netvsc 000d3a3a-c481-000d-3a3a-c481000d3a3a eth0: VF registering: eth1
[ 11.646155] mlx4_core 0001:00:02.0 enP1p0s2: renamed from eth1
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