During boot I see this in the journal( syslog):
Apr 02 11:57:22 boiler-bone.mydomain.com kernel: ieee80211 phy0: Atheros
> AR9271 Rev:1
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: IPv6:
> ADDRCONF(NETDEV_UP): wlan0: link is not ready
> Apr 02 11:57:22 boiler-bone.mydomain.com connmand[372]: Adding interface
> wlan0 [ wifi ]
> Apr 02 11:57:22 boiler-bone.mydomain.com connmand[372]: wlan0 {update}
> flags 36931 <UP,RUNNING>
> Apr 02 11:57:22 boiler-bone.mydomain.com connmand[372]: wlan0 {newlink}
> index 4 address C4:E9:84:0E:00:00 mtu 1500
> Apr 02 11:57:22 boiler-bone.mydomain.com connmand[372]: wlan0 {newlink}
> index 4 operstate 0 <UNKNOWN>
> Apr 02 11:57:22 boiler-bone.mydomain.com connmand[372]: wlan0 {update}
> flags 36867 <UP>
> Apr 02 11:57:22 boiler-bone.mydomain.com connmand[372]: wlan0 {newlink}
> index 4 address C4:E9:84:0E:00:00 mtu 1500
> Apr 02 11:57:22 boiler-bone.mydomain.com connmand[372]: wlan0 {newlink}
> index 4 operstate 2 <DOWN>
> Apr 02 11:57:22 boiler-bone.mydomain.com connmand[372]: wlan0 {newlink}
> index 4 address C4:E9:84:0E:00:00 mtu 1500
> Apr 02 11:57:22 boiler-bone.mydomain.com connmand[372]: wlan0 {newlink}
> index 4 operstate 2 <DOWN>
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: ------------[ cut here
> ]------------
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: WARNING: CPU: 0 PID: 494
> at drivers/base/devres.c:888 bone_pinmux_helper_probe+0x151/0x1
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: Modules linked in: arc4
> ath9k_htc ath9k_common ath9k_hw ath mac80211 cfg80211 omap_sham
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: CPU: 0 PID: 494 Comm:
> bash Not tainted 4.5.0-bone3 #1
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: Hardware name: Generic
> AM33XX (Flattened Device Tree)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0013fcd>]
> (unwind_backtrace) from [<c0012025>] (show_stack+0x11/0x14)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0012025>] (show_stack)
> from [<c002cb1f>] (warn_slowpath_common+0x6b/0x8c)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c002cb1f>]
> (warn_slowpath_common) from [<c002cbe7>] (warn_slowpath_null+0x17/0x1c)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c002cbe7>]
> (warn_slowpath_null) from [<c044aee5>] (bone_pinmux_helper_probe+0x151/0x1c
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c044aee5>]
> (bone_pinmux_helper_probe) from [<c0433eb7>] (platform_drv_probe+0x37/0x7c)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0433eb7>]
> (platform_drv_probe) from [<c043287d>] (driver_probe_device+0xc5/0x310)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c043287d>]
> (driver_probe_device) from [<c04311ed>] (bus_for_each_drv+0x51/0x80)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c04311ed>]
> (bus_for_each_drv) from [<c04326ab>] (__device_attach+0x83/0xe8)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c04326ab>]
> (__device_attach) from [<c0431df7>] (bus_probe_device+0x5b/0x60)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0431df7>]
> (bus_probe_device) from [<c0430777>] (device_add+0x303/0x430)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0430777>] (device_add)
> from [<c0577a35>] (of_platform_device_create_pdata+0x69/0x94)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0577a35>]
> (of_platform_device_create_pdata) from [<c0577af1>] (of_platform_notify+0x8
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0577af1>]
> (of_platform_notify) from [<c004143b>] (notifier_call_chain+0x4b/0x68)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c004143b>]
> (notifier_call_chain) from [<c0041655>] (__blocking_notifier_call_chain+0x2
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0041655>]
> (__blocking_notifier_call_chain) from [<c004167b>] (blocking_notifier_call_
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c004167b>]
> (blocking_notifier_call_chain) from [<c0578775>] (__of_changeset_entry_noti
>
Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0578775>]
> (__of_changeset_entry_notify) from [<c0578d9d>] (__of_changeset_apply+0x65/
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c0578d9d>]
> (__of_changeset_apply) from [<c057c89d>] (__of_overlay_create+0x2ed/0x46c)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c057c89d>]
> (__of_overlay_create) from [<c044b7f1>] (capemgr_load_slot+0x2e9/0x464)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c044b7f1>]
> (capemgr_load_slot) from [<c044cdc1>] (slots_store+0xf1/0x244)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c044cdc1>]
> (slots_store) from [<c01582e1>] (kernfs_fop_write+0x85/0x150)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c01582e1>]
> (kernfs_fop_write) from [<c010a44d>] (__vfs_write+0x29/0xa4)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c010a44d>]
> (__vfs_write) from [<c010ae31>] (vfs_write+0x65/0x12c)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c010ae31>] (vfs_write)
> from [<c010b70b>] (SyS_write+0x3f/0x80)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: [<c010b70b>] (SyS_write)
> from [<c000eb21>] (ret_fast_syscall+0x1/0x4c)
> Apr 02 11:57:22 boiler-bone.mydomain.com kernel: ---[ end trace
> 476f0f719918ffb8 ]---
>
>
This happened on my 4.1 and then now on the upgraded 4.5.0-bone3.
This appears several times, in the syslog, yet the wifi works well.
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