Hi, Nv’s experts:
I encountered some issues when use usb on jetson thor.
Hardware: Custom board
Jetson linux versoin: Jetson_Linux_R38.4_aarch64
We use VL822-QFN76 usb hub instead of RTS5420，now we encountering some problems:
- We plugged in different USB flash drives and found that USB 2.0(480M) and USB 3.2 Gen2(10000M) flash drives worked fine, while USB 3.2 Gen1(5000M) flash drives did not.
- When a USB 3.2 Gen1 flash drive is inserted, if we reboot the system, it fails to boot normally and gets stuck at the boot stage, unable to enter the kernel.
Some debug informations:
When the problem occurs,when entering lsblk, it only display /dev/sda, not /dev/sda1 and /dev/sda2,and lsusb -t can normally discover the 5000M device on the usb 3.0 bus.
The log read from the serial port is as follows:
nvidia@upai-pro03:~$ [ 51.340462] scsi 0:0:0:0: Direct-Access Generic MassStorageClass 1538 PQ: 0 ANSI: 6
[ 51.545718] sd 0:0:0:0: [sda] Media removed, stopped polling
[ 51.546625] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 51.548317] scsi 0:0:0:1: Direct-Access Generic MassStorageClass 1538 PQ: 0 ANSI: 6
[ 52.432141] sd 0:0:0:1: [sdb] 123596800 512-byte logical blocks: (63.3 GB/58.9 GiB)
[ 52.433896] sd 0:0:0:1: [sdb] Write Protect is off
��INFO: END TASK:MB��:0:1: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
INFO: enter idle task.
INFO: END TASK:MB��
INFO: enter idle task.
��
nvidia@upai-pro03:~$ lsusb -t
/: Bus 001.Port 001: Dev 001, Class=root_hub, Driver=tegra-xusb/4p, 480M
|__ Port 002: Dev 002, If 0, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 002: Dev 002, If 1, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 002: Dev 002, If 2, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 002: Dev 002, If 3, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 002: Dev 002, If 4, Class=Communications, Driver=cdc_ether, 480M
|__ Port 002: Dev 002, If 5, Class=CDC Data, Driver=cdc_ether, 480M
|__ Port 003: Dev 003, If 0, Class=Wireless, Driver=btusb, 12M
|__ Port 003: Dev 003, If 1, Class=Wireless, Driver=btusb, 12M
|__ Port 004: Dev 004, If 0, Class=Hub, Driver=hub/5p, 480M
|__ Port 005: Dev 005, If 0, Class=Billboard, Driver=[none], 480M
/: Bus 002.Port 001: Dev 001, Class=root_hub, Driver=tegra-xusb/4p, 20000M/x2
|__ Port 003: Dev 003, If 0, Class=Hub, Driver=hub/4p, 10000M
|__ Port 002: Dev 004, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
nvidia@upai-pro03:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
loop0 7:0 0 16M 1 loop
sda 8:0 1 0B 0 disk
sdb 8:16 1 58.9G 0 disk
nvme0n1 259:0 0 465.8G 0 disk
├─nvme0n1p1 259:1 0 463.1G 0 part /
├─nvme0n1p2 259:2 0 100M 0 part
├─nvme0n1p3 259:3 0 768K 0 part
├─nvme0n1p4 259:4 0 512M 0 part /boot/efi
├─nvme0n1p5 259:5 0 384.8M 0 part
├─nvme0n1p6 259:6 0 100M 0 part
├─nvme0n1p7 259:7 0 768K 0 part
├─nvme0n1p8 259:8 0 512M 0 part
├─nvme0n1p9 259:9 0 384.8M 0 part
├─nvme0n1p10 259:10 0 400M 0 part
└─nvme0n1p11 259:11 0 335M 0 part
nvidia@upai-pro03:~$ ls /dev/sd*
/dev/sda /dev/sdb
nvidia@upai-pro03:~$ [ 83.530418] I/O error, dev sdb, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 83.530462] Buffer I/O error on dev sdb, logical block 0, async page read
[ 83.739758] sd 0:0:0:1: [sdb] tag#0 device offline or changed
[ 83.739815] I/O error, dev sdb, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 83.739844] Buffer I/O error on dev sdb, logical block 0, async page read
[ 83.747288] sd 0:0:0:1: [sdb] Attached SCSI removable disk
nvidia@upai-pro03:~$
The log when booting from a USB drive fails is as follows:
boot_failed.log (59.2 KB)