I am experiencing a serious issues related to USB layer on two RPi 4B devices running LE 11 Nightly builds, currently with 5.15.61 Linux kernel.
The issue often happens when the DVB-T2 tuner is switched to another channel, sometimes after moving the timeshift point.
Then sometimes the communication with USB devices is stopped and can be restored only after switching the RPi's USB ports off and on (with uhubctl app).
Tested with both USB2 and USB3 ports - ihe issue is the same, also with USB device connected through USB hub. In past the same HW configuration (DVB-T2 adapter connected directly to USB2 port) worked stable.
1) RPi 4B/4GB, DVB-T2 USB adapter MyGica, LE 11 Nightly running from microSD card
[169263.505276] rpivid feb10000.codec: PPS changed
[169271.569528] rpivid feb10000.codec: Missing DPB ent 0, timestamp=0, index=-1
[169271.569554] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169271.569569] rpivid feb10000.codec: Missing DPB ent for col
[169271.569892] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169271.569908] rpivid feb10000.codec: Missing DPB ent 2, timestamp=0, index=-1
[169271.570661] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169271.570682] rpivid feb10000.codec: Missing DPB ent 2, timestamp=0, index=-1
[169271.571438] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169271.582707] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169271.582743] rpivid feb10000.codec: Missing DPB ent for col
[169271.583107] rpivid feb10000.codec: Missing DPB ent 2, timestamp=0, index=-1
[169271.583979] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169271.584007] rpivid feb10000.codec: Missing DPB ent for col
[169271.606637] rpivid feb10000.codec: Missing DPB ent 0, timestamp=0, index=-1
[169271.606683] rpivid feb10000.codec: Missing DPB ent for col
[169271.617299] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169271.622094] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169271.623300] rpivid feb10000.codec: Missing DPB ent 2, timestamp=0, index=-1
[169274.794931] rpivid feb10000.codec: Missing DPB ent 0, timestamp=0, index=-1
[169278.516161] rpivid feb10000.codec: Missing DPB ent 0, timestamp=0, index=-1
[169278.516191] rpivid feb10000.codec: Missing DPB ent for col
[169278.516705] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169278.517243] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169278.517756] rpivid feb10000.codec: Missing DPB ent 1, timestamp=0, index=-1
[169283.314023] rpivid feb10000.codec: Missing DPB ent 0, timestamp=0, index=-1
[169288.378889] usb 1-1.4.3: dvb_usb_v2: 2nd usb_bulk_msg() failed=-110
[169290.512245] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169292.645613] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169294.779013] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169296.912419] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169299.045814] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169301.179150] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169303.312507] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169305.445876] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169307.579278] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169309.712668] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169311.849398] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169313.979432] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169313.979458] usb 1-1.4.3: dvb_usb_v2: streaming_ctrl() failed=-110
[169316.112800] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169318.249541] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169320.379557] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169322.512963] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169324.646339] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169326.779696] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169328.913097] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
[169331.046493] usb 1-1.4.3: dvb_usb_v2: usb_bulk_msg() failed=-110
2) RPi 4B/2GB - DVB-T2 USB adapter Astrometa, LE 11 Nightly running from USB/SATA adapter + SATA HDD
With this configuration the USB issue does not happen so often but leads to complete LE crash as it is running from USB/SATA adapter.
It seems the issue is related with 5.15 kernel revision which brought the unstability to USB layer.