屏幕MAC地址获取不了，MAC是空的，固件更新屏显示最新固件是MAC地址！ #1
Comments
shenzt68
pushed a commit
that referenced
this issue
Sep 20, 2019
When enabling atomic-sleep-debugging options in the kernel,
following splat is seen when disabling the interface (which happens on boot):
[ 10.892878] eth0: link down
[ 10.896788] BUG: sleeping function called from invalid context at net/core/dev.c:5563
[ 10.904730] in_atomic(): 1, irqs_disabled(): 1, pid: 425, name: ip
[ 10.911004] 2 locks held by ip/425:
[ 10.914539] #0: (rtnl_mutex){....}, at: [<80377474>] rtnetlink_rcv_msg+0x2d8/0x380
[ 10.922441] #1: (&(&ag->lock)->rlock){....}, at: [<80330158>] ag71xx_hw_disable+0x24/0x94
[ 10.930976] CPU: 0 PID: 425 Comm: ip Not tainted 4.14.136 #0
[ 10.936716] Stack : 805e0000 80589228 80557404 876998ec 80610000 80610000 87cdcafc 805b5327
[ 10.945233] 80551534 000001a9 8061386c 87699ccc 87cfb180 00000001 876998a0 84f70903
[ 10.953751] 00000000 00000000 80b00000 8769979c 6a7407fa 00000000 00000007 00000000
[ 10.962270] 000000b7 16d0954a 000000b6 00000000 80000000 87cb658c 87cb65b0 00000001
[ 10.970787] 8046f97c 87699ccc 87cfb180 87ff2810 00000003 802ce724 0806e098 80610000
[ 10.979306] ...
[ 10.981797] Call Trace:
[ 10.984287] [<8006cb0c>] show_stack+0x58/0x100
[ 10.988814] [<800aab34>] ___might_sleep+0x100/0x120
[ 10.993774] [<8035c434>] napi_disable+0x30/0xd8
[ 10.998377] [<80330198>] ag71xx_hw_disable+0x64/0x94
[ 11.003418] [<8033069c>] ag71xx_stop+0x24/0x38
[ 11.007959] [<80359e30>] __dev_close_many+0xcc/0x104
[ 11.013009] [<80362eac>] __dev_change_flags+0xc8/0x1ac
[ 11.018227] [<80362fb8>] dev_change_flags+0x28/0x70
[ 11.023182] [<80376890>] do_setlink+0x31c/0x91c
[ 11.027786] [<80379360>] rtnl_newlink+0x3ec/0x7f8
[ 11.032563] [<80377498>] rtnetlink_rcv_msg+0x2fc/0x380
[ 11.037799] [<8039a734>] netlink_rcv_skb+0xd4/0x178
[ 11.042754] [<80399d10>] netlink_unicast+0x168/0x250
[ 11.047796] [<8039a2d4>] netlink_sendmsg+0x3d8/0x434
[ 11.052841] [<8033f0e4>] ___sys_sendmsg+0x1dc/0x290
[ 11.057794] [<80340140>] __sys_sendmsg+0x54/0x84
[ 11.062495] [<8007212c>] syscall_common+0x34/0x58
This is caused by calling napi_disable() while holding the spinlock.
Fix it by omitting the spinlock, which is not required here
Extensively tested on GL-MiFi, RB-912 and RB-922 hardware
Signed-off-by: Koen Vandeputte <[email protected]>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
This repository is a mirror of our main repo at https://git.openwrt.org/openwrt/openwrt.git
It is for reference only and is not active for checkins or for reporting issues.
All issues should be reported at: https://bugs.openwrt.org
Please do not open any NEW issue here - we will be closing the Github issues
capability in the near future.
We will continue to accept Pull Requests here as described in the repo description.
Close this now and click here: https://bugs.openwrt.org
Thankyou for your co-operation.
The text was updated successfully, but these errors were encountered: