Hi, Sorry, for missing the subject last time. On Wed, 15 Feb 2023 at 23:06, Pintu Agarwal <pintu.ping@xxxxxxxxx> wrote: > > Hi, > > We are seeing below "ubi errors" during booting. > Although this does not cause any functionality break, I am wondering > if there is any way to fix it ? > We are using Kernel 4.14 with UBI and squashfs (ubiblock) as volumes, > and with systemd. > > Anybody have experienced the similar logs with ubi/squashfs and > figured out a way to avoid it ? > It seems like these open volumes are called twice, thus error -16 > indicates (device or resource busy). > Or, are these logs expected because of squashfs or ubiblock ? > Or, do we need to add anything related to udev-rules ? > > { > .... > [ 129.394789] ubi0 error: ubi_open_volume: cannot open device 0, > volume 6, error -16 > [ 129.486498] ubi0 error: ubi_open_volume: cannot open device 0, > volume 7, error -16 > [ 129.546582] ubi0 error: ubi_open_volume: cannot open device 0, > volume 8, error -16 > [ 129.645014] ubi0 error: ubi_open_volume: cannot open device 0, > volume 9, error -16 > [ 129.676456] ubi0 error: ubi_open_volume: cannot open device 0, > volume 6, error -16 > [ 129.706655] ubi0 error: ubi_open_volume: cannot open device 0, > volume 10, error -16 > [ 129.732740] ubi0 error: ubi_open_volume: cannot open device 0, > volume 7, error -16 > [ 129.811111] ubi0 error: ubi_open_volume: cannot open device 0, > volume 8, error -16 > [ 129.852308] ubi0 error: ubi_open_volume: cannot open device 0, > volume 9, error -16 > [ 129.923429] ubi0 error: ubi_open_volume: cannot open device 0, > volume 10, error -16 > > } > I see that the errors are reported by systemd-udevd and other processes. Is there a way to fix it by some means ? These logs actually consume lots of boot up time... [ 54.300726] ubi0 error: ubi_open_volume: comm: systemd-udevd, pid: 1460, cannot open device 0, volume 4, error -16 [ 54.507095] ubi0 error: ubi_open_volume: comm: systemd-udevd, pid: 1469, cannot open device 0, volume 5, error -16 [ 54.509816] ubi0 error: ubi_open_volume: comm: systemd-udevd, pid: 1465, cannot open device 0, volume 6, error -16 [ 54.650627] ubi0 error: ubi_open_volume: comm: systemd-udevd, pid: 1469, cannot open device 0, volume 7, error -16 [ 54.680203] ubi0 error: ubi_open_volume: comm: systemd-udevd, pid: 1445, cannot open device 0, volume 8, error -16 [ 56.311902] ubi0 error: ubi_open_volume: comm: mtd_probe, pid: 2042, cannot open device 0, volume 4, error -16 [ 56.795532] ubi0 error: ubi_open_volume: comm: mtd_probe, pid: 2043, cannot open device 0, volume 5, error -16 [ 57.087962] ubi0 error: ubi_open_volume: comm: mtd_probe, pid: 2044, cannot open device 0, volume 6, error -16 [ 57.130853] ubi0 error: ubi_open_volume: comm: mtd_probe, pid: 2047, cannot open device 0, volume 8, error -16 [ 57.345761] ubi0 error: ubi_open_volume: comm: mtd_probe, pid: 2046, cannot open device 0, volume 7, error -16 Thanks, Pintu