Hi !
I use a LM842 wifi stick on a Linux kernel 5.15 with last patches for
rtw88 from linux-next applied.
Firmware version is 9.9.15
When I connect LM842 as a station to an AP, after the link is up first
time, it comes from time to time more LOWER_UP message.
The stick is plugged and the connection to AP is still valid.
# ip -oneline -family inet monitor link
5: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noqueue state DOWN
group default \ link/ether 34:c9:f0:99:b6:a1 brd ff:ff:ff:ff:ff:ff
5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
state DOWN group default \ link/ether 34:c9:f0:99:b6:a1 brd
ff:ff:ff:ff:ff:ff
5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
state DOWN group default \ link/ether 34:c9:f0:99:b6:a1 brd
ff:ff:ff:ff:ff:ff
5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> \ link/ether
5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state DORMANT group default \ link/ether 34:c9:f0:99:b6:a1
brd ff:ff:ff:ff:ff:ff
5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP group default \ link/ether 34:c9:f0:99:b6:a1 brd
ff:ff:ff:ff:ff:ff
5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
Any idea what I can do ?
Did someone also reproduce that problem ?
Regards,
Gabriel
On 4/28/23 08:56, Gabriel Tisan wrote:
> Hi !
>
> I use a LM842 wifi stick on a Linux kernel 5.15 with last patches for
> rtw88 from linux-next applied.
> Firmware version is 9.9.15
>
> When I connect LM842 as a station to an AP, after the link is up first
> time, it comes from time to time more LOWER_UP message.
> The stick is plugged and the connection to AP is still valid.
>
> # ip -oneline -family inet monitor link
>
> 5: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noqueue state DOWN
> group default \ link/ether 34:c9:f0:99:b6:a1 brd ff:ff:ff:ff:ff:ff
>
> 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> state DOWN group default \ link/ether 34:c9:f0:99:b6:a1 brd
> ff:ff:ff:ff:ff:ff
>
> 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> state DOWN group default \ link/ether 34:c9:f0:99:b6:a1 brd
> ff:ff:ff:ff:ff:ff
>
> 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> \ link/ether
>
> 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
> noqueue state DORMANT group default \ link/ether 34:c9:f0:99:b6:a1
> brd ff:ff:ff:ff:ff:ff
>
> 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
> 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
> 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
> 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
> state UP group default \ link/ether 34:c9:f0:99:b6:a1 brd
> ff:ff:ff:ff:ff:ff
>
>
>
> 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
> 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
> 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
> 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
> 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
> 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
>
>
>
>
> Any idea what I can do ?
>
> Did someone also reproduce that problem ?
No, I do not see that problem. When I run your command, I get
finger@localhost:~/rtw88>ip -oneline -family inet monitor link
12: wlp0s20u6i2: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
12: wlp0s20u6i2: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
12: wlp0s20u6i2: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
My connection is very stable; however, my device is an 8822BU, not an 8822CU.
When the connection is dropped, what is logged? You can see that with a 'sudo
dmesg | less' command.
Larry
Actually the connection is not dropped. That is the problem : the
message LOWER_UP is coming although the connection is not dropped.
I suppose that LOWER_UP notification is send wrong by the driver.
In the log nothing comes.
I tried to increase log level, but I didn't find any /proc/rtw88.
I have debug activated:
CONFIG_RTW88_DEBUG=y
CONFIG_RTW88_DEBUGFS=y
On Fri, Apr 28, 2023 at 9:28 PM Larry Finger <[email protected]> wrote:
>
> On 4/28/23 08:56, Gabriel Tisan wrote:
> > Hi !
> >
> > I use a LM842 wifi stick on a Linux kernel 5.15 with last patches for
> > rtw88 from linux-next applied.
> > Firmware version is 9.9.15
> >
> > When I connect LM842 as a station to an AP, after the link is up first
> > time, it comes from time to time more LOWER_UP message.
> > The stick is plugged and the connection to AP is still valid.
> >
> > # ip -oneline -family inet monitor link
> >
> > 5: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noqueue state DOWN
> > group default \ link/ether 34:c9:f0:99:b6:a1 brd ff:ff:ff:ff:ff:ff
> >
> > 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> > state DOWN group default \ link/ether 34:c9:f0:99:b6:a1 brd
> > ff:ff:ff:ff:ff:ff
> >
> > 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
> > state DOWN group default \ link/ether 34:c9:f0:99:b6:a1 brd
> > ff:ff:ff:ff:ff:ff
> >
> > 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> \ link/ether
> >
> > 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
> > noqueue state DORMANT group default \ link/ether 34:c9:f0:99:b6:a1
> > brd ff:ff:ff:ff:ff:ff
> >
> > 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> >
> > 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> >
> > 5: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> >
> > 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
> > state UP group default \ link/ether 34:c9:f0:99:b6:a1 brd
> > ff:ff:ff:ff:ff:ff
> >
> >
> >
> > 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> >
> > 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> >
> > 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> >
> > 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> >
> > 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> >
> > 5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> >
> >
> >
> >
> >
> > Any idea what I can do ?
> >
> > Did someone also reproduce that problem ?
>
> No, I do not see that problem. When I run your command, I get
>
> finger@localhost:~/rtw88>ip -oneline -family inet monitor link
> 12: wlp0s20u6i2: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> 12: wlp0s20u6i2: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
> 12: wlp0s20u6i2: <BROADCAST,MULTICAST,UP,LOWER_UP> \ link/ether
>
> My connection is very stable; however, my device is an 8822BU, not an 8822CU.
>
> When the connection is dropped, what is logged? You can see that with a 'sudo
> dmesg | less' command.
>
> Larry
>
>