@mykdelta I am hit by the same issue since upgrading my Odroid HC-2 (a "server version" of the XU4) from the official Odroid image (Kernel 4.14) to Armbian (Kernel 5.4). I am pretty sure this is not hardware related, as everything was working just fine up until the upgrade.
I am also able to trigger the crash deterministically by doing a
btrfs scrub start /storage
and within a couple of minutes the whole device freezes. For reference - in syslog I see (same as you):
Oct 30 12:37:56 odroidxu4 kernel: [ 1333.613911] sd 0:0:0:0: [sda] tag#29 uas_eh_abort_handler 0 uas-tag 9 inflight: CMD IN
Oct 30 12:37:56 odroidxu4 kernel: [ 1333.613934] sd 0:0:0:0: [sda] tag#29 CDB: opcode=0x28 28 00 0a f8 11 00 00 01 00 00
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.633730] xhci-hcd xhci-hcd.8.auto: xHCI host not responding to stop endpoint command.
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.653922] xhci-hcd xhci-hcd.8.auto: xHCI host controller not responding, assume dead
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.660399] usb 4-1: cmd cmplt err -108
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667632] sd 0:0:0:0: [sda] tag#28 uas_eh_abort_handler 0 uas-tag 8 inflight: CMD
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667654] sd 0:0:0:0: [sda] tag#28 CDB: opcode=0x28 28 00 0a f8 0c 00 00 01 00 00
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667672] sd 0:0:0:0: [sda] tag#27 uas_eh_abort_handler 0 uas-tag 6 inflight: CMD
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667687] sd 0:0:0:0: [sda] tag#27 CDB: opcode=0x28 28 00 0a f8 3f 00 00 04 00 00
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667710] sd 0:0:0:0: [sda] tag#26 uas_eh_abort_handler 0 uas-tag 5 inflight: CMD
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667724] sd 0:0:0:0: [sda] tag#26 CDB: opcode=0x28 28 00 0a f8 3c 00 00 03 00 00
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667746] sd 0:0:0:0: [sda] tag#25 uas_eh_abort_handler 0 uas-tag 3 inflight: CMD
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667761] sd 0:0:0:0: [sda] tag#25 CDB: opcode=0x28 28 00 0a f8 32 00 00 03 00 00
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667783] sd 0:0:0:0: [sda] tag#24 uas_eh_abort_handler 0 uas-tag 18 inflight: CMD IN
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667794] sd 0:0:0:0: [sda] tag#24 CDB: opcode=0x28 28 00 0a f8 2a 00 00 01 00 00
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667817] sd 0:0:0:0: [sda] tag#23 uas_eh_abort_handler 0 uas-tag 30 inflight: CMD IN
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.667831] sd 0:0:0:0: [sda] tag#23 CDB: opcode=0x28 28 00 0a f8 16 00 00 01 00 00
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.670028] xhci-hcd xhci-hcd.8.auto: HC died; cleaning up
Oct 30 12:38:01 odroidxu4 kernel: [ 1338.674217] usb 4-1: USB disconnect, device number 2
Now the HC-2 mounts a USB-to-SATA bridge onboard, so I think overall my setup is very similar to yours. Did you find a solution?
Cheers,
Juri
