linux/drivers/net/ethernet
Manuel Bessler c762eaa777 r6040: move spinlock in r6040_close as SOFTIRQ-unsafe lock order detected
'ifconfig eth0 down' makes r6040_close() trigger:
 INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected

Fixed by moving calls to phy_stop(), napi_disable(), netif_stop_queue()
to outside of the module's private spin_lock_irq block.

Found on a Versalogic Tomcat SBC with a Vortex86 SoC

s1660e_5150:~# sudo ifconfig eth0 down
[   61.306415] ======================================================
[   61.306415] [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ]
[   61.306415] 4.9.0-gb898d2d-manuel #1 Not tainted
[   61.306415] ------------------------------------------------------
[   61.306415] ifconfig/449 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
[   61.306415]  (&dev->lock){+.+...}, at: [<c1336276>] phy_stop+0x16/0x80

[   61.306415] and this task is already holding:
[   61.306415]  (&(&lp->lock)->rlock){+.-...}, at: [<d0934c84>] r6040_close+0x24/0x230 [r6040]
which would create a new lock dependency:
[   61.306415]  (&(&lp->lock)->rlock){+.-...} -> (&dev->lock){+.+...}

[   61.306415] but this new dependency connects a SOFTIRQ-irq-safe lock:
[   61.306415]  (&(&lp->lock)->rlock){+.-...}
[   61.306415] ... which became SOFTIRQ-irq-safe at:
[   61.306415]   [   61.306415] [<c1075bc5>] __lock_acquire+0x555/0x1770
[   61.306415]   [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]   [   61.306415] [<c14bb334>] _raw_spin_lock_irqsave+0x24/0x40
[   61.306415]   [   61.306415] [<d0934ac0>] r6040_start_xmit+0x30/0x1d0 [r6040]
[   61.306415]   [   61.306415] [<c13a7d4d>] dev_hard_start_xmit+0x9d/0x2d0
[   61.306415]   [   61.306415] [<c13c8a38>] sch_direct_xmit+0xa8/0x140
[   61.306415]   [   61.306415] [<c13a8436>] __dev_queue_xmit+0x416/0x780
[   61.306415]   [   61.306415] [<c13a87aa>] dev_queue_xmit+0xa/0x10
[   61.306415]   [   61.306415] [<c13b4837>] neigh_resolve_output+0x147/0x220
[   61.306415]   [   61.306415] [<c144541b>] ip6_finish_output2+0x2fb/0x910
[   61.306415]   [   61.306415] [<c14494e6>] ip6_finish_output+0xa6/0x1a0
[   61.306415]   [   61.306415] [<c1449635>] ip6_output+0x55/0x320
[   61.306415]   [   61.306415] [<c146f4d2>] mld_sendpack+0x352/0x560
[   61.306415]   [   61.306415] [<c146fe55>] mld_ifc_timer_expire+0x155/0x280
[   61.306415]   [   61.306415] [<c108b081>] call_timer_fn+0x81/0x270
[   61.306415]   [   61.306415] [<c108b331>] expire_timers+0xc1/0x180
[   61.306415]   [   61.306415] [<c108b4f7>] run_timer_softirq+0x77/0x150
[   61.306415]   [   61.306415] [<c1043d04>] __do_softirq+0xb4/0x3d0
[   61.306415]   [   61.306415] [<c101a15c>] do_softirq_own_stack+0x1c/0x30
[   61.306415]   [   61.306415] [<c104416e>] irq_exit+0x8e/0xa0
[   61.306415]   [   61.306415] [<c1019d31>] do_IRQ+0x51/0x100
[   61.306415]   [   61.306415] [<c14bc176>] common_interrupt+0x36/0x40
[   61.306415]   [   61.306415] [<c1134928>] set_root+0x68/0xf0
[   61.306415]   [   61.306415] [<c1136120>] path_init+0x400/0x640
[   61.306415]   [   61.306415] [<c11386bf>] path_lookupat+0xf/0xe0
[   61.306415]   [   61.306415] [<c1139ebc>] filename_lookup+0x6c/0x100
[   61.306415]   [   61.306415] [<c1139fd5>] user_path_at_empty+0x25/0x30
[   61.306415]   [   61.306415] [<c11298c6>] SyS_faccessat+0x86/0x1e0
[   61.306415]   [   61.306415] [<c1129a30>] SyS_access+0x10/0x20
[   61.306415]   [   61.306415] [<c100179f>] do_int80_syscall_32+0x3f/0x110
[   61.306415]   [   61.306415] [<c14bba3f>] restore_all+0x0/0x61
[   61.306415]
[   61.306415] to a SOFTIRQ-irq-unsafe lock:
[   61.306415]  (&dev->lock){+.+...}
[   61.306415] ... which became SOFTIRQ-irq-unsafe at:
[   61.306415] ...[   61.306415]
[   61.306415] [<c1075c0c>] __lock_acquire+0x59c/0x1770
[   61.306415]   [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]   [   61.306415] [<c14b7add>] mutex_lock_nested+0x2d/0x4a0
[   61.306415]   [   61.306415] [<c133747d>] phy_probe+0x4d/0xc0
[   61.306415]   [   61.306415] [<c1338afe>] phy_attach_direct+0xbe/0x190
[   61.306415]   [   61.306415] [<c1338ca7>] phy_connect_direct+0x17/0x60
[   61.306415]   [   61.306415] [<c1338d23>] phy_connect+0x33/0x70
[   61.306415]   [   61.306415] [<d09357a0>] r6040_init_one+0x3a0/0x500 [r6040]
[   61.306415]   [   61.306415] [<c12a78c7>] pci_device_probe+0x77/0xd0
[   61.306415]   [   61.306415] [<c12f5e15>] driver_probe_device+0x145/0x280
[   61.306415]   [   61.306415] [<c12f5fd9>] __driver_attach+0x89/0x90
[   61.306415]   [   61.306415] [<c12f43ef>] bus_for_each_dev+0x4f/0x80
[   61.306415]   [   61.306415] [<c12f5954>] driver_attach+0x14/0x20
[   61.306415]   [   61.306415] [<c12f55b7>] bus_add_driver+0x197/0x210
[   61.306415]   [   61.306415] [<c12f6a21>] driver_register+0x51/0xd0
[   61.306415]   [   61.306415] [<c12a6955>] __pci_register_driver+0x45/0x50
[   61.306415]   [   61.306415] [<d0938017>] 0xd0938017
[   61.306415]   [   61.306415] [<c100043f>] do_one_initcall+0x2f/0x140
[   61.306415]   [   61.306415] [<c10e48c0>] do_init_module+0x4a/0x19b
[   61.306415]   [   61.306415] [<c10a680e>] load_module+0x1b2e/0x2070
[   61.306415]   [   61.306415] [<c10a6eb9>] SyS_finit_module+0x69/0x80
[   61.306415]   [   61.306415] [<c100179f>] do_int80_syscall_32+0x3f/0x110
[   61.306415]   [   61.306415] [<c14bba3f>] restore_all+0x0/0x61
[   61.306415]
[   61.306415] other info that might help us debug this:
[   61.306415]
[   61.306415]  Possible interrupt unsafe locking scenario:
[   61.306415]
[   61.306415]        CPU0                    CPU1
[   61.306415]        ----                    ----
[   61.306415]   lock(&dev->lock);
[   61.306415]                                local_irq_disable();
[   61.306415]                                lock(&(&lp->lock)->rlock);
[   61.306415]                                lock(&dev->lock);
[   61.306415]   <Interrupt>
[   61.306415]     lock(&(&lp->lock)->rlock);
[   61.306415]
[   61.306415]  *** DEADLOCK ***
[   61.306415]
[   61.306415] 2 locks held by ifconfig/449:
[   61.306415]  #0:  (rtnl_mutex){+.+.+.}, at: [<c13b68ef>] rtnl_lock+0xf/0x20
[   61.306415]  #1:  (&(&lp->lock)->rlock){+.-...}, at: [<d0934c84>] r6040_close+0x24/0x230 [r6040]
[   61.306415]
[   61.306415] the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
[   61.306415] -> (&(&lp->lock)->rlock){+.-...} ops: 3049 {
[   61.306415]    HARDIRQ-ON-W at:
[   61.306415]                     [   61.306415] [<c1075be7>] __lock_acquire+0x577/0x1770
[   61.306415]                     [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]                     [   61.306415] [<c14bb21b>] _raw_spin_lock+0x1b/0x30
[   61.306415]                     [   61.306415] [<d09343cc>] r6040_poll+0x2c/0x330 [r6040]
[   61.306415]                     [   61.306415] [<c13a5577>] net_rx_action+0x197/0x340
[   61.306415]                     [   61.306415] [<c1043d04>] __do_softirq+0xb4/0x3d0
[   61.306415]                     [   61.306415] [<c1044037>] run_ksoftirqd+0x17/0x40
[   61.306415]                     [   61.306415] [<c105fe91>] smpboot_thread_fn+0x141/0x180
[   61.306415]                     [   61.306415] [<c105c84e>] kthread+0xde/0x110
[   61.306415]                     [   61.306415] [<c14bb949>] ret_from_fork+0x19/0x30
[   61.306415]    IN-SOFTIRQ-W at:
[   61.306415]                     [   61.306415] [<c1075bc5>] __lock_acquire+0x555/0x1770
[   61.306415]                     [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]                     [   61.306415] [<c14bb334>] _raw_spin_lock_irqsave+0x24/0x40
[   61.306415]                     [   61.306415] [<d0934ac0>] r6040_start_xmit+0x30/0x1d0 [r6040]
[   61.306415]                     [   61.306415] [<c13a7d4d>] dev_hard_start_xmit+0x9d/0x2d0
[   61.306415]                     [   61.306415] [<c13c8a38>] sch_direct_xmit+0xa8/0x140
[   61.306415]                     [   61.306415] [<c13a8436>] __dev_queue_xmit+0x416/0x780
[   61.306415]                     [   61.306415] [<c13a87aa>] dev_queue_xmit+0xa/0x10
[   61.306415]                     [   61.306415] [<c13b4837>] neigh_resolve_output+0x147/0x220
[   61.306415]                     [   61.306415] [<c144541b>] ip6_finish_output2+0x2fb/0x910
[   61.306415]                     [   61.306415] [<c14494e6>] ip6_finish_output+0xa6/0x1a0
[   61.306415]                     [   61.306415] [<c1449635>] ip6_output+0x55/0x320
[   61.306415]                     [   61.306415] [<c146f4d2>] mld_sendpack+0x352/0x560
[   61.306415]                     [   61.306415] [<c146fe55>] mld_ifc_timer_expire+0x155/0x280
[   61.306415]                     [   61.306415] [<c108b081>] call_timer_fn+0x81/0x270
[   61.306415]                     [   61.306415] [<c108b331>] expire_timers+0xc1/0x180
[   61.306415]                     [   61.306415] [<c108b4f7>] run_timer_softirq+0x77/0x150
[   61.306415]                     [   61.306415] [<c1043d04>] __do_softirq+0xb4/0x3d0
[   61.306415]                     [   61.306415] [<c101a15c>] do_softirq_own_stack+0x1c/0x30
[   61.306415]                     [   61.306415] [<c104416e>] irq_exit+0x8e/0xa0
[   61.306415]                     [   61.306415] [<c1019d31>] do_IRQ+0x51/0x100
[   61.306415]                     [   61.306415] [<c14bc176>] common_interrupt+0x36/0x40
[   61.306415]                     [   61.306415] [<c1134928>] set_root+0x68/0xf0
[   61.306415]                     [   61.306415] [<c1136120>] path_init+0x400/0x640
[   61.306415]                     [   61.306415] [<c11386bf>] path_lookupat+0xf/0xe0
[   61.306415]                     [   61.306415] [<c1139ebc>] filename_lookup+0x6c/0x100
[   61.306415]                     [   61.306415] [<c1139fd5>] user_path_at_empty+0x25/0x30
[   61.306415]                     [   61.306415] [<c11298c6>] SyS_faccessat+0x86/0x1e0
[   61.306415]                     [   61.306415] [<c1129a30>] SyS_access+0x10/0x20
[   61.306415]                     [   61.306415] [<c100179f>] do_int80_syscall_32+0x3f/0x110
[   61.306415]                     [   61.306415] [<c14bba3f>] restore_all+0x0/0x61
[   61.306415]    INITIAL USE at:
[   61.306415]                    [   61.306415] [<c107586e>] __lock_acquire+0x1fe/0x1770
[   61.306415]                    [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]                    [   61.306415] [<c14bb334>] _raw_spin_lock_irqsave+0x24/0x40
[   61.306415]                    [   61.306415] [<d093474e>] r6040_get_stats+0x1e/0x60 [r6040]
[   61.306415]                    [   61.306415] [<c139fb16>] dev_get_stats+0x96/0xc0
[   61.306415]                    [   61.306415] [<c14b416e>] rtnl_fill_stats+0x36/0xfd
[   61.306415]                    [   61.306415] [<c13b7b3c>] rtnl_fill_ifinfo+0x47c/0xce0
[   61.306415]                    [   61.306415] [<c13bc08e>] rtmsg_ifinfo_build_skb+0x4e/0xd0
[   61.306415]                    [   61.306415] [<c13bc120>] rtmsg_ifinfo.part.20+0x10/0x40
[   61.306415]                    [   61.306415] [<c13bc16b>] rtmsg_ifinfo+0x1b/0x20
[   61.306415]                    [   61.306415] [<c13a9d19>] register_netdevice+0x409/0x550
[   61.306415]                    [   61.306415] [<c13a9e72>] register_netdev+0x12/0x20
[   61.306415]                    [   61.306415] [<d09357e8>] r6040_init_one+0x3e8/0x500 [r6040]
[   61.306415]                    [   61.306415] [<c12a78c7>] pci_device_probe+0x77/0xd0
[   61.306415]                    [   61.306415] [<c12f5e15>] driver_probe_device+0x145/0x280
[   61.306415]                    [   61.306415] [<c12f5fd9>] __driver_attach+0x89/0x90
[   61.306415]                    [   61.306415] [<c12f43ef>] bus_for_each_dev+0x4f/0x80
[   61.306415]                    [   61.306415] [<c12f5954>] driver_attach+0x14/0x20
[   61.306415]                    [   61.306415] [<c12f55b7>] bus_add_driver+0x197/0x210
[   61.306415]                    [   61.306415] [<c12f6a21>] driver_register+0x51/0xd0
[   61.306415]                    [   61.306415] [<c12a6955>] __pci_register_driver+0x45/0x50
[   61.306415]                    [   61.306415] [<d0938017>] 0xd0938017
[   61.306415]                    [   61.306415] [<c100043f>] do_one_initcall+0x2f/0x140
[   61.306415]                    [   61.306415] [<c10e48c0>] do_init_module+0x4a/0x19b
[   61.306415]                    [   61.306415] [<c10a680e>] load_module+0x1b2e/0x2070
[   61.306415]                    [   61.306415] [<c10a6eb9>] SyS_finit_module+0x69/0x80
[   61.306415]                    [   61.306415] [<c100179f>] do_int80_syscall_32+0x3f/0x110
[   61.306415]                    [   61.306415] [<c14bba3f>] restore_all+0x0/0x61
[   61.306415]  }
[   61.306415]  ... key      at: [<d0936280>] __key.45893+0x0/0xfffff739 [r6040]
[   61.306415]  ... acquired at:
[   61.306415]    [   61.306415] [<c1074a32>] check_irq_usage+0x42/0xb0
[   61.306415]    [   61.306415] [<c107677c>] __lock_acquire+0x110c/0x1770
[   61.306415]    [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]    [   61.306415] [<c14b7add>] mutex_lock_nested+0x2d/0x4a0
[   61.306415]    [   61.306415] [<c1336276>] phy_stop+0x16/0x80
[   61.306415]    [   61.306415] [<d0934ce9>] r6040_close+0x89/0x230 [r6040]
[   61.306415]    [   61.306415] [<c13a0a91>] __dev_close_many+0x61/0xa0
[   61.306415]    [   61.306415] [<c13a0bbf>] __dev_close+0x1f/0x30
[   61.306415]    [   61.306415] [<c13a9127>] __dev_change_flags+0x87/0x150
[   61.306415]    [   61.306415] [<c13a9213>] dev_change_flags+0x23/0x60
[   61.306415]    [   61.306415] [<c1416238>] devinet_ioctl+0x5f8/0x6f0
[   61.306415]    [   61.306415] [<c1417f75>] inet_ioctl+0x65/0x90
[   61.306415]    [   61.306415] [<c1389b54>] sock_ioctl+0x124/0x2b0
[   61.306415]    [   61.306415] [<c113cf7c>] do_vfs_ioctl+0x7c/0x790
[   61.306415]    [   61.306415] [<c113d6b8>] SyS_ioctl+0x28/0x50
[   61.306415]    [   61.306415] [<c100179f>] do_int80_syscall_32+0x3f/0x110
[   61.306415]    [   61.306415] [<c14bba3f>] restore_all+0x0/0x61
[   61.306415]
[   61.306415]
the dependencies between the lock to be acquired[   61.306415]  and SOFTIRQ-irq-unsafe lock:
[   61.306415] -> (&dev->lock){+.+...} ops: 56 {
[   61.306415]    HARDIRQ-ON-W at:
[   61.306415]                     [   61.306415] [<c1075be7>] __lock_acquire+0x577/0x1770
[   61.306415]                     [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]                     [   61.306415] [<c14b7add>] mutex_lock_nested+0x2d/0x4a0
[   61.306415]                     [   61.306415] [<c133747d>] phy_probe+0x4d/0xc0
[   61.306415]                     [   61.306415] [<c1338afe>] phy_attach_direct+0xbe/0x190
[   61.306415]                     [   61.306415] [<c1338ca7>] phy_connect_direct+0x17/0x60
[   61.306415]                     [   61.306415] [<c1338d23>] phy_connect+0x33/0x70
[   61.306415]                     [   61.306415] [<d09357a0>] r6040_init_one+0x3a0/0x500 [r6040]
[   61.306415]                     [   61.306415] [<c12a78c7>] pci_device_probe+0x77/0xd0
[   61.306415]                     [   61.306415] [<c12f5e15>] driver_probe_device+0x145/0x280
[   61.306415]                     [   61.306415] [<c12f5fd9>] __driver_attach+0x89/0x90
[   61.306415]                     [   61.306415] [<c12f43ef>] bus_for_each_dev+0x4f/0x80
[   61.306415]                     [   61.306415] [<c12f5954>] driver_attach+0x14/0x20
[   61.306415]                     [   61.306415] [<c12f55b7>] bus_add_driver+0x197/0x210
[   61.306415]                     [   61.306415] [<c12f6a21>] driver_register+0x51/0xd0
[   61.306415]                     [   61.306415] [<c12a6955>] __pci_register_driver+0x45/0x50
[   61.306415]                     [   61.306415] [<d0938017>] 0xd0938017
[   61.306415]                     [   61.306415] [<c100043f>] do_one_initcall+0x2f/0x140
[   61.306415]                     [   61.306415] [<c10e48c0>] do_init_module+0x4a/0x19b
[   61.306415]                     [   61.306415] [<c10a680e>] load_module+0x1b2e/0x2070
[   61.306415]                     [   61.306415] [<c10a6eb9>] SyS_finit_module+0x69/0x80
[   61.306415]                     [   61.306415] [<c100179f>] do_int80_syscall_32+0x3f/0x110
[   61.306415]                     [   61.306415] [<c14bba3f>] restore_all+0x0/0x61
[   61.306415]    SOFTIRQ-ON-W at:
[   61.306415]                     [   61.306415] [<c1075c0c>] __lock_acquire+0x59c/0x1770
[   61.306415]                     [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]                     [   61.306415] [<c14b7add>] mutex_lock_nested+0x2d/0x4a0
[   61.306415]                     [   61.306415] [<c133747d>] phy_probe+0x4d/0xc0
[   61.306415]                     [   61.306415] [<c1338afe>] phy_attach_direct+0xbe/0x190
[   61.306415]                     [   61.306415] [<c1338ca7>] phy_connect_direct+0x17/0x60
[   61.306415]                     [   61.306415] [<c1338d23>] phy_connect+0x33/0x70
[   61.306415]                     [   61.306415] [<d09357a0>] r6040_init_one+0x3a0/0x500 [r6040]
[   61.306415]                     [   61.306415] [<c12a78c7>] pci_device_probe+0x77/0xd0
[   61.306415]                     [   61.306415] [<c12f5e15>] driver_probe_device+0x145/0x280
[   61.306415]                     [   61.306415] [<c12f5fd9>] __driver_attach+0x89/0x90
[   61.306415]                     [   61.306415] [<c12f43ef>] bus_for_each_dev+0x4f/0x80
[   61.306415]                     [   61.306415] [<c12f5954>] driver_attach+0x14/0x20
[   61.306415]                     [   61.306415] [<c12f55b7>] bus_add_driver+0x197/0x210
[   61.306415]                     [   61.306415] [<c12f6a21>] driver_register+0x51/0xd0
[   61.306415]                     [   61.306415] [<c12a6955>] __pci_register_driver+0x45/0x50
[   61.306415]                     [   61.306415] [<d0938017>] 0xd0938017
[   61.306415]                     [   61.306415] [<c100043f>] do_one_initcall+0x2f/0x140
[   61.306415]                     [   61.306415] [<c10e48c0>] do_init_module+0x4a/0x19b
[   61.306415]                     [   61.306415] [<c10a680e>] load_module+0x1b2e/0x2070
[   61.306415]                     [   61.306415] [<c10a6eb9>] SyS_finit_module+0x69/0x80
[   61.306415]                     [   61.306415] [<c100179f>] do_int80_syscall_32+0x3f/0x110
[   61.306415]                     [   61.306415] [<c14bba3f>] restore_all+0x0/0x61
[   61.306415]    INITIAL USE at:
[   61.306415]                    [   61.306415] [<c107586e>] __lock_acquire+0x1fe/0x1770
[   61.306415]                    [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]                    [   61.306415] [<c14b7add>] mutex_lock_nested+0x2d/0x4a0
[   61.306415]                    [   61.306415] [<c133747d>] phy_probe+0x4d/0xc0
[   61.306415]                    [   61.306415] [<c1338afe>] phy_attach_direct+0xbe/0x190
[   61.306415]                    [   61.306415] [<c1338ca7>] phy_connect_direct+0x17/0x60
[   61.306415]                    [   61.306415] [<c1338d23>] phy_connect+0x33/0x70
[   61.306415]                    [   61.306415] [<d09357a0>] r6040_init_one+0x3a0/0x500 [r6040]
[   61.306415]                    [   61.306415] [<c12a78c7>] pci_device_probe+0x77/0xd0
[   61.306415]                    [   61.306415] [<c12f5e15>] driver_probe_device+0x145/0x280
[   61.306415]                    [   61.306415] [<c12f5fd9>] __driver_attach+0x89/0x90
[   61.306415]                    [   61.306415] [<c12f43ef>] bus_for_each_dev+0x4f/0x80
[   61.306415]                    [   61.306415] [<c12f5954>] driver_attach+0x14/0x20
[   61.306415]                    [   61.306415] [<c12f55b7>] bus_add_driver+0x197/0x210
[   61.306415]                    [   61.306415] [<c12f6a21>] driver_register+0x51/0xd0
[   61.306415]                    [   61.306415] [<c12a6955>] __pci_register_driver+0x45/0x50
[   61.306415]                    [   61.306415] [<d0938017>] 0xd0938017
[   61.306415]                    [   61.306415] [<c100043f>] do_one_initcall+0x2f/0x140
[   61.306415]                    [   61.306415] [<c10e48c0>] do_init_module+0x4a/0x19b
[   61.306415]                    [   61.306415] [<c10a680e>] load_module+0x1b2e/0x2070
[   61.306415]                    [   61.306415] [<c10a6eb9>] SyS_finit_module+0x69/0x80
[   61.306415]                    [   61.306415] [<c100179f>] do_int80_syscall_32+0x3f/0x110
[   61.306415]                    [   61.306415] [<c14bba3f>] restore_all+0x0/0x61
[   61.306415]  }
[   61.306415]  ... key      at: [<c1f28f39>] __key.43998+0x0/0x8
[   61.306415]  ... acquired at:
[   61.306415]    [   61.306415] [<c1074a32>] check_irq_usage+0x42/0xb0
[   61.306415]    [   61.306415] [<c107677c>] __lock_acquire+0x110c/0x1770
[   61.306415]    [   61.306415] [<c107717c>] lock_acquire+0x7c/0x150
[   61.306415]    [   61.306415] [<c14b7add>] mutex_lock_nested+0x2d/0x4a0
[   61.306415]    [   61.306415] [<c1336276>] phy_stop+0x16/0x80
[   61.306415]    [   61.306415] [<d0934ce9>] r6040_close+0x89/0x230 [r6040]
[   61.306415]    [   61.306415] [<c13a0a91>] __dev_close_many+0x61/0xa0
[   61.306415]    [   61.306415] [<c13a0bbf>] __dev_close+0x1f/0x30
[   61.306415]    [   61.306415] [<c13a9127>] __dev_change_flags+0x87/0x150
[   61.306415]    [   61.306415] [<c13a9213>] dev_change_flags+0x23/0x60
[   61.306415]    [   61.306415] [<c1416238>] devinet_ioctl+0x5f8/0x6f0
[   61.306415]    [   61.306415] [<c1417f75>] inet_ioctl+0x65/0x90
[   61.306415]    [   61.306415] [<c1389b54>] sock_ioctl+0x124/0x2b0
[   61.306415]    [   61.306415] [<c113cf7c>] do_vfs_ioctl+0x7c/0x790
[   61.306415]    [   61.306415] [<c113d6b8>] SyS_ioctl+0x28/0x50
[   61.306415]    [   61.306415] [<c100179f>] do_int80_syscall_32+0x3f/0x110
[   61.306415]    [   61.306415] [<c14bba3f>] restore_all+0x0/0x61
[   61.306415]
[   61.306415]
[   61.306415] stack backtrace:
[   61.306415] CPU: 0 PID: 449 Comm: ifconfig Not tainted 4.9.0-gb898d2d-manuel #1
[   61.306415] Call Trace:
[   61.306415]  dump_stack+0x16/0x19
[   61.306415]  check_usage+0x3f6/0x550
[   61.306415]  ? check_usage+0x4d/0x550
[   61.306415]  check_irq_usage+0x42/0xb0
[   61.306415]  __lock_acquire+0x110c/0x1770
[   61.306415]  lock_acquire+0x7c/0x150
[   61.306415]  ? phy_stop+0x16/0x80
[   61.306415]  mutex_lock_nested+0x2d/0x4a0
[   61.306415]  ? phy_stop+0x16/0x80
[   61.306415]  ? r6040_close+0x24/0x230 [r6040]
[   61.306415]  ? __delay+0x9/0x10
[   61.306415]  phy_stop+0x16/0x80
[   61.306415]  r6040_close+0x89/0x230 [r6040]
[   61.306415]  __dev_close_many+0x61/0xa0
[   61.306415]  __dev_close+0x1f/0x30
[   61.306415]  __dev_change_flags+0x87/0x150
[   61.306415]  dev_change_flags+0x23/0x60
[   61.306415]  devinet_ioctl+0x5f8/0x6f0
[   61.306415]  inet_ioctl+0x65/0x90
[   61.306415]  sock_ioctl+0x124/0x2b0
[   61.306415]  ? dlci_ioctl_set+0x30/0x30
[   61.306415]  do_vfs_ioctl+0x7c/0x790
[   61.306415]  ? trace_hardirqs_on+0xb/0x10
[   61.306415]  ? call_rcu_sched+0xd/0x10
[   61.306415]  ? __put_cred+0x32/0x50
[   61.306415]  ? SyS_faccessat+0x178/0x1e0
[   61.306415]  SyS_ioctl+0x28/0x50
[   61.306415]  do_int80_syscall_32+0x3f/0x110
[   61.306415]  entry_INT80_32+0x2f/0x2f
[   61.306415] EIP: 0xb764d364
[   61.306415] EFLAGS: 00000286 CPU: 0
[   61.306415] EAX: ffffffda EBX: 00000004 ECX: 00008914 EDX: bfa99d7c
[   61.306415] ESI: bfa99e4c EDI: fffffffe EBP: 00000004 ESP: bfa99d58
[   61.306415]  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[   63.836607] r6040 0000:00:08.0 eth0: Link is Down

Signed-off-by: Manuel Bessler <manuel.bessler@sensus.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-17 21:35:12 -05:00
..
3com net/3com/3c515: Fix timer handling, prevent leaks and crashes 2016-12-16 13:25:06 -05:00
8390 net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
adaptec net: adaptec: starfire: use new api ethtool_{get|set}_link_ksettings 2016-11-09 13:25:12 -05:00
adi net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
aeroflex net: phy: expose phy_aneg_done API for use by drivers 2016-11-13 00:56:26 -05:00
agere ethernet: use core min/max MTU checking 2016-10-18 11:34:22 -04:00
alacritech net: ethernet: slicoss: use module_pci_driver() 2016-12-08 13:00:02 -05:00
allwinner net: ethernet: sun4i-emac: Read rxhdr in CPU byte-order 2016-11-15 22:05:54 -05:00
alteon net: alteon: acenic: use new api ethtool_{get|set}_link_ksettings 2016-11-09 13:25:12 -05:00
altera Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
amazon net: ena: use setup_timer() and mod_timer() 2016-10-26 17:21:59 -04:00
amd Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
apm net: xgene: avoid bogus maybe-uninitialized warning 2016-12-08 21:30:54 -05:00
apple net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
arc net: arc_emac: add dependencies on associated arches and compile test 2016-11-29 18:57:36 -05:00
atheros alx: enable multiple tx queues 2016-11-15 22:46:30 -05:00
aurora Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
broadcom bnxt_en: Add interface to support RDMA driver. 2016-12-07 10:59:26 -05:00
brocade bna: use designated initializers 2016-12-17 11:56:57 -05:00
cadence net: macb: Added PCI wrapper for Platform Driver. 2016-12-17 10:24:33 -05:00
calxeda net: calxeda: xgmac: use new api ethtool_{get|set}_link_ksettings 2016-12-05 15:34:33 -05:00
cavium net: nicvf: use new api ethtool_{get|set}_link_ksettings 2016-12-10 17:31:44 -05:00
chelsio net: chelsio: cxgb3: use new api ethtool_{get|set}_link_ksettings 2016-12-17 21:31:41 -05:00
cirrus net: cirrus: ep93xx: use new api ethtool_{get|set}_link_ksettings 2016-12-17 21:31:41 -05:00
cisco enic: set skb->hash type properly 2016-11-02 15:32:53 -04:00
davicom net: davicom: dm9000: use new api ethtool_{get|set}_link_ksettings 2016-12-17 21:31:41 -05:00
dec net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
dlink ethernet/dlink: use core min/max MTU checking 2016-10-18 11:34:20 -04:00
emulex Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
ezchip net: nps_enet: Fix module autoload 2016-10-17 13:03:02 -04:00
faraday net/faraday: Stop NCSI device on shutdown 2016-10-04 02:11:51 -04:00
freescale dpaa_eth: remove redundant dependency on FSL_SOC 2016-12-17 11:42:45 -05:00
fujitsu net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
hisilicon net: ethernet: hip04: Call SET_NETDEV_DEV() 2016-12-16 13:29:35 -05:00
hp net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
i825xx net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
ibm ibmveth: calculate gso_segs for large packets 2016-12-17 10:23:28 -05:00
intel e1000: use disable_hardirq() for e1000_netpoll() 2016-12-10 23:31:19 -05:00
marvell net: mvneta: select GENERIC_ALLOCATOR 2016-12-10 17:27:53 -05:00
mediatek Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
mellanox Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
micrel ethernet: use core min/max MTU checking 2016-10-18 11:34:22 -04:00
microchip encx24j600: Fix some checkstyle warnings 2016-12-16 13:31:47 -05:00
moxa net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
myricom myri10ge: fix typo in parameter description 2016-10-20 14:47:53 -04:00
natsemi net: ns83820: use dev_kfree_skb_irq instead of kfree_skb 2016-10-26 17:21:59 -04:00
neterion ethernet/neterion: use core min/max MTU checking 2016-10-18 11:34:20 -04:00
netronome bpf: xdp: Allow head adjustment in XDP prog 2016-12-08 14:25:13 -05:00
nuvoton net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
nvidia ethernet: use core min/max MTU checking 2016-10-18 11:34:22 -04:00
nxp net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
oki-semi ethernet: use core min/max MTU checking 2016-10-18 11:34:22 -04:00
packetengines net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
pasemi ethernet: use core min/max MTU checking 2016-10-18 11:34:22 -04:00
qlogic bpf: xdp: Allow head adjustment in XDP prog 2016-12-08 14:25:13 -05:00
qualcomm net: qcom/emac: don't try to claim clocks on ACPI systems 2016-12-17 10:22:14 -05:00
rdc r6040: move spinlock in r6040_close as SOFTIRQ-unsafe lock order detected 2016-12-17 21:35:12 -05:00
realtek r8169: Add support for restarting auto-negotiation 2016-12-05 13:38:43 -05:00
renesas Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
rocker ipv4: fib: Replay events when registering FIB notifier 2016-12-03 19:29:35 -05:00
samsung net: ethernet: sxgbe: remove private tx queue lock 2016-12-10 23:23:35 -05:00
seeq net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
sfc net: sfc: use new api ethtool_{get|set}_link_ksettings 2016-12-17 21:31:41 -05:00
sgi net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
silan net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
sis net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
smsc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
stmicro net: ethernet: stmmac: remove private tx queue lock 2016-12-10 23:26:54 -05:00
sun Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-22 13:27:16 -05:00
synopsys Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
tehuti ethernet: use core min/max MTU checking 2016-10-18 11:34:22 -04:00
ti net: ethernet: ti: netcp: add support of cpts 2016-12-10 23:31:19 -05:00
tile ethernet/tile: use core min/max MTU checking 2016-10-18 11:34:21 -04:00
toshiba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-15 10:54:36 -05:00
tundra net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
via ethernet: use core min/max MTU checking 2016-10-18 11:34:22 -04:00
wiznet net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
xilinx net: ll_temac: Utilize of_get_mac_address() 2016-12-08 11:34:03 -05:00
xircom net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
xscale net: ethernet: ixp4xx_eth: Utilize phy_ethtool_nway_reset 2016-11-15 16:33:35 -05:00
dnet.c net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
dnet.h
ec_bhf.c net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
ethoc.c net: ethoc: Demote packet dropped error message to debug 2016-12-05 15:30:04 -05:00
fealnx.c net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
jme.c ethernet: use net core MTU range checking in more drivers 2016-10-20 14:51:08 -04:00
jme.h
Kconfig net: ethernet: slicoss: add slicoss gigabit ethernet driver 2016-12-06 11:24:28 -05:00
korina.c net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00
lantiq_etop.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-10 16:21:55 -05:00
Makefile net: ethernet: slicoss: add slicoss gigabit ethernet driver 2016-12-06 11:24:28 -05:00
netx-eth.c net: deprecate eth_change_mtu, remove usage 2016-10-13 09:36:57 -04:00