Hello, Am So., 16. Apr. 2023 um 19:47 Uhr schrieb Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx>: > > On 16/04/2023 16:45, Artem Makhutov wrote: > > Hello, > > > > I am not sure if it is ok to write to you directly but I could not find a place where to open a ticket about the rtl8xxxu driver. > > > > I am having issues with the RTL8188EU (LogiLink WL0151A) where I get truncated packets when sending large packets. It's easy to reproduce with ping: > > [...] > Hi! > > Adding linux-wireless because that's the place to report bugs. > Also bugzilla.kernel.org, but that's more dead. > > Unfortunately my TP-Link TL-WN725N is fine even with bigger packets: > [...] Yes, I also have wifi networks where I have no issues at all. It seems to be only related to some wifi routers. With a Huawei AX3 router I have no issues. But with an Asus RT-AX53U i am getting corrupted data. > What version of the kernel/driver are you running? On what kind > of computer? It is an embedded device with a STM32MP157C processor. It runs an 5.15.67 kernel from ST (https://github.com/STMicroelectronics/linux/) I have backported the rtl8xxxu driver from https://github.com/torvalds/linux/ to that kernel by cherry-pick all the related commits. > Did you use any module parameters? No, I have not tried any parameters yet. > Do you know if the other computer is receiving correct packets > from your RTL8188EU? I have no ssh access to the router (it runs the stock firmware from Asus), but I can try to do some tests on another PC later. But I assume that it receives correct data as I can see a reply in tcpdump. > What's the biggest packet size which still works correctly? I think the magic number for ping is 1429. With ping -s 1428 I have no issues. > Did you test any other driver, like this one: > https://github.com/lwfinger/rtl8188eu/tree/v5.2.2.4 Yes, I have tried this one. Here I had no issue with packet loss, but I was losing the wifi connection from time to time and the auto-reconnect also did not work. > or this one: > https://github.com/aircrack-ng/rtl8188eus I have not tried this one yet. But I have also tried https://github.com/ivanovborislav/rtl8188eu Here after some hours or days the wifi completely hangs up, loses the connection and does not see any wifi networks any more at all. > If the other computer is receiving correct packets, try this untested > patch to see what rtl8xxxu is actually receiving: > [...] I have applied the patch. For a working ping with a packet size of 1428 I am getting: urb_len 1562 pkt_cnt 136 pkt_len 1506 drvinfo_sz 32 desc_shift 0 [...] For a broken ping with a packet size of 1430 I am getting the data below. The strange thing is that the urb_len 1560 for a 1430 bytes ping is smaller than a urb_len 1562 for a 1428 bytes large ping... urb_len 1560 pkt_cnt 136 pkt_len 1504 drvinfo_sz 32 desc_shift 0 00000000: 84c405e0 21f0d700 30880052 0000104f 00000000 13283a20 000d002f 0000fcc2 .......!R..0O....... :(./....... 00000020: 0000fcfa 3800c200 00000300 001e0f00 8400d100 00000000 00244288 561cf170 .......8.................B$.p..V 00000040: eb50c390 142783f6 83f6eb50 05201427 00530007 00002000 aaaa0000 00000003 ..P...'.P...'. ...S.. .......... 00000060: 00450008 1428b205 01400000 0a0ab438 0a0a0100 00006f00 be070a23 78050100 ..E...(...@.8........o..#......x 00000080: 1d15643e 09080003 0d0c0b0a 11100f0e 15141312 19181716 1d1c1b1a 21201f1e >d............................ ! 000000a0: 25242322 29282726 2d2c2b2a 31302f2e 35343332 39383736 3d3c3b3a 41403f3e "#$%&'()*+,-./0123456789:;<=>?@A 000000c0: 45444342 49484746 4d4c4b4a 51504f4e 55545352 59585756 5d5c5b5a 61605f5e BCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`a 000000e0: 65646362 69686766 6d6c6b6a 71706f6e 75747372 79787776 7d7c7b7a 81807f7e bcdefghijklmnopqrstuvwxyz{|}~... 00000100: 85848382 89888786 8d8c8b8a 91908f8e 95949392 99989796 9d9c9b9a a1a09f9e ................................ 00000120: a5a4a3a2 a9a8a7a6 adacabaa b1b0afae b5b4b3b2 b9b8b7b6 bdbcbbba c1c0bfbe ................................ 00000140: c5c4c3c2 c9c8c7c6 cdcccbca d1d0cfce d5d4d3d2 d9d8d7d6 dddcdbda e1e0dfde ................................ 00000160: e5e4e3e2 e9e8e7e6 edecebea f1f0efee f5f4f3f2 f9f8f7f6 fdfcfbfa 0100fffe ................................ 00000180: 05040302 09080706 0d0c0b0a 11100f0e 15141312 19181716 1d1c1b1a 21201f1e .............................. ! 000001a0: 25242322 29282726 2d2c2b2a 31302f2e 35343332 39383736 3d3c3b3a 41403f3e "#$%&'()*+,-./0123456789:;<=>?@A 000001c0: 45444342 49484746 4d4c4b4a 51504f4e 55545352 59585756 5d5c5b5a 61605f5e BCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`a 000001e0: 65646362 69686766 6d6c6b6a 71706f6e 75747372 79787776 7d7c7b7a 81807f7e bcdefghijklmnopqrstuvwxyz{|}~... 00000200: 85848382 89888786 8d8c8b8a 91908f8e 95949392 99989796 9d9c9b9a a1a09f9e ................................ 00000220: a5a4a3a2 a9a8a7a6 adacabaa b1b0afae b5b4b3b2 b9b8b7b6 bdbcbbba c1c0bfbe ................................ 00000240: c5c4c3c2 c9c8c7c6 cdcccbca d1d0cfce d5d4d3d2 d9d8d7d6 dddcdbda e1e0dfde ................................ 00000260: e5e4e3e2 e9e8e7e6 edecebea f1f0efee f5f4f3f2 f9f8f7f6 fdfcfbfa 0100fffe ................................ 00000280: 05040302 09080706 0d0c0b0a 11100f0e 15141312 19181716 1d1c1b1a 21201f1e .............................. ! 000002a0: 25242322 29282726 2d2c2b2a 31302f2e 35343332 39383736 3d3c3b3a 41403f3e "#$%&'()*+,-./0123456789:;<=>?@A 000002c0: 45444342 49484746 4d4c4b4a 51504f4e 55545352 59585756 5d5c5b5a 61605f5e BCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`a 000002e0: 65646362 69686766 6d6c6b6a 71706f6e 75747372 79787776 7d7c7b7a 81807f7e bcdefghijklmnopqrstuvwxyz{|}~... 00000300: 85848382 89888786 8d8c8b8a 91908f8e 95949392 99989796 9d9c9b9a a1a09f9e ................................ 00000320: a5a4a3a2 a9a8a7a6 adacabaa b1b0afae b5b4b3b2 b9b8b7b6 bdbcbbba c1c0bfbe ................................ 00000340: c5c4c3c2 c9c8c7c6 cdcccbca d1d0cfce d5d4d3d2 d9d8d7d6 dddcdbda e1e0dfde ................................ 00000360: e5e4e3e2 e9e8e7e6 edecebea f1f0efee f5f4f3f2 f9f8f7f6 fdfcfbfa 0100fffe ................................ 00000380: 05040302 09080706 0d0c0b0a 11100f0e 15141312 19181716 1d1c1b1a 21201f1e .............................. ! 000003a0: 25242322 29282726 2d2c2b2a 31302f2e 35343332 39383736 3d3c3b3a 41403f3e "#$%&'()*+,-./0123456789:;<=>?@A 000003c0: 45444342 49484746 4d4c4b4a 51504f4e 55545352 59585756 5d5c5b5a 61605f5e BCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`a 000003e0: 65646362 69686766 6d6c6b6a 71706f6e 75747372 79787776 7d7c7b7a 81807f7e bcdefghijklmnopqrstuvwxyz{|}~... 00000400: 85848382 89888786 8d8c8b8a 91908f8e 95949392 99989796 9d9c9b9a a1a09f9e ................................ 00000420: a5a4a3a2 a9a8a7a6 adacabaa b1b0afae b5b4b3b2 b9b8b7b6 bdbcbbba c1c0bfbe ................................ 00000440: c5c4c3c2 c9c8c7c6 cdcccbca d1d0cfce d5d4d3d2 d9d8d7d6 dddcdbda e1e0dfde ................................ 00000460: e5e4e3e2 e9e8e7e6 edecebea f1f0efee f5f4f3f2 f9f8f7f6 fdfcfbfa 0100fffe ................................ 00000480: 05040302 09080706 0d0c0b0a 11100f0e 15141312 19181716 1d1c1b1a 21201f1e .............................. ! 000004a0: 25242322 29282726 2d2c2b2a 31302f2e 35343332 39383736 3d3c3b3a 41403f3e "#$%&'()*+,-./0123456789:;<=>?@A 000004c0: 45444342 49484746 4d4c4b4a 51504f4e 55545352 59585756 5d5c5b5a 61605f5e BCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`a 000004e0: 65646362 69686766 6d6c6b6a 71706f6e 75747372 79787776 7d7c7b7a 81807f7e bcdefghijklmnopqrstuvwxyz{|}~... 00000500: 85848382 89888786 8d8c8b8a 91908f8e 95949392 99989796 9d9c9b9a a1a09f9e ................................ 00000520: a5a4a3a2 a9a8a7a6 adacabaa b1b0afae b5b4b3b2 b9b8b7b6 bdbcbbba c1c0bfbe ................................ 00000540: c5c4c3c2 c9c8c7c6 cdcccbca d1d0cfce d5d4d3d2 d9d8d7d6 dddcdbda e1e0dfde ................................ 00000560: e5e4e3e2 e9e8e7e6 edecebea f1f0efee f5f4f3f2 f9f8f7f6 fdfcfbfa 0100fffe ................................ 00000580: 05040302 09080706 0d0c0b0a 11100f0e 15141312 19181716 1d1c1b1a 21201f1e .............................. ! 000005a0: 25242322 29282726 2d2c2b2a 31302f2e 35343332 39383736 3d3c3b3a 41403f3e "#$%&'()*+,-./0123456789:;<=>?@A 000005c0: 45444342 49484746 4d4c4b4a 51504f4e 55545352 59585756 5d5c5b5a 61605f5e BCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`a 000005e0: 65646362 69686766 6d6c6b6a 71706f6e 75747372 79787776 7d7c7b7a 81807f7e bcdefghijklmnopqrstuvwxyz{|}~... 00000600: 85848382 89888786 8d8c8b8a 91908f8e 95949392 330f81a8 Thanks, Artem
