Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <CALbLcfAXrHp4vsVGqU0nBdB_gFmKTKx0GcdrFJA7R_kodAy0Ew@mail.gmail.com>
 <bfe732f4-60dd-4d78-1259-5f9f6c11adbc@gmail.com> <CALbLcfB7cMctHC-Fv93z1WVCZkQ76uW2F_=P6rCW7ZSPXvmapw@mail.gmail.com>
 <2857f998-1b1a-e3c2-20fe-d03dadcf8f23@gmail.com> <CALbLcfCsyGzhvrqjSz37+7cLvc3rc4Y_kgspZV=kiPNs4TBE4w@mail.gmail.com>
In-Reply-To: <CALbLcfCsyGzhvrqjSz37+7cLvc3rc4Y_kgspZV=kiPNs4TBE4w@mail.gmail.com>
From:   Artem Makhutov <artem.makhutov@gmail.com>
Date:   Wed, 19 Apr 2023 19:52:17 +0200
Message-ID: <CALbLcfBnF6njFMSfQk2TuOiZ3C3kHwqs4-c-MQGb72azzQ5sJA@mail.gmail.com>
Subject: Re: RTL8188EU (LogiLink WL0151A) - Malformed packets
To:     Bitterblue Smith <rtl8821cerfe2@gmail.com>
Cc:     "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

Hi

> I have also tested the driver from https://github.com/aircrack-ng/rtl8188eus
>
> The problem occurs here too, but much less frequently than in the
> rtl8xxxu driver. The strange thing is that sometimes I have 99% of
> broken packets with the rtl8xxxu driver, but sometimes only 1%...
> With the aircrack-ng driver I had maybe about 2% of failures.

Now I was just able to get the issue using the v5.2.2.4 driver too,
but not so frequent:

tcpdump -ni wlan0
19:39:26.407253 IP 10.10.0.111 > 10.10.0.1: ICMP echo request, id
34080, seq 1, length 1438
19:39:26.410520 IP truncated-ip - 4 bytes missing! 10.10.0.1 >
10.10.0.111: ICMP echo reply, id 34080, seq 1, length 1438
19:39:27.442835 IP 10.10.0.111 > 10.10.0.1: ICMP echo request, id
34080, seq 2, length 1438
19:39:27.445703 IP truncated-ip - 4 bytes missing! 10.10.0.1 >
10.10.0.111: ICMP echo reply, id 34080, seq 2, length 1438
19:39:28.482846 IP 10.10.0.111 > 10.10.0.1: ICMP echo request, id
34080, seq 3, length 1438
19:39:28.490406 IP truncated-ip - 4 bytes missing! 10.10.0.1 >
10.10.0.111: ICMP echo reply, id 34080, seq 3, length 1438
19:39:29.522723 IP 10.10.0.111 > 10.10.0.1: ICMP echo request, id
34080, seq 4, length 1438
19:39:29.525468 IP 10.10.0.1 > 10.10.0.111: ICMP echo reply, id 34080,
seq 4, length 1438
19:39:30.524193 IP 10.10.0.111 > 10.10.0.1: ICMP echo request, id
34080, seq 5, length 1438
19:39:30.527100 IP 10.10.0.1 > 10.10.0.111: ICMP echo reply, id 34080,
seq 5, length 1438
19:39:31.525775 IP 10.10.0.111 > 10.10.0.1: ICMP echo request, id
34080, seq 6, length 1438
19:39:31.528707 IP 10.10.0.1 > 10.10.0.111: ICMP echo reply, id 34080,
seq 6, length 1438
19:39:32.527400 IP 10.10.0.111 > 10.10.0.1: ICMP echo request, id
34080, seq 7, length 1438
19:39:32.531262 IP 10.10.0.1 > 10.10.0.111: ICMP echo reply, id 34080,
seq 7, length 1438

Apr 19 19:39:26 kern.warn kernel: [ 3228.967023]
rtl8188e_query_rx_desc_status: pkt_len: 1504
Apr 19 19:39:27 kern.warn kernel: [ 3230.002515]
rtl8188e_query_rx_desc_status: pkt_len: 1504
Apr 19 19:39:28 kern.warn kernel: [ 3231.047199]
rtl8188e_query_rx_desc_status: pkt_len: 1504
Apr 19 19:39:29 kern.warn kernel: [ 3232.082274]
rtl8188e_query_rx_desc_status: pkt_len: 1508
Apr 19 19:39:30 kern.warn kernel: [ 3233.083901]
rtl8188e_query_rx_desc_status: pkt_len: 1508

Thanks, Artem