On Thu, 25 May 2017, Abdul Haleem wrote: > Hi, > > Test : boot > Machine : Power 8 PowerVM LPAR > Kernel version : 4.12.0-rc2-next-20170524 > Toolchain : gcc version 5.2.1 > Config : attached > > next-20170517 was last good version where we did not see the failure. > from next-20170519 to today's next-20170524, we see the problem > everyday. > > Kernels fails to boot on PowerVM LPAR with these errors; > > Freeing unused kernel memory: 4416K > This architecture does not have kernel memory protection. > Loading, please wait... > mount: mounting udev on /dev failed: Device or resource busy > W: devtmpfs not available, falling back to tmpfs for /dev > starting version 222 > Begin: Loading essential drivers ... done. > Begin: Running /scripts/init-premount ... done. > Begin: Mounting root file system ... Begin: > Running /scripts/local-top ... done. > chvt: can't open console > Gave up waiting for root device. Common problems: > - Boot args (cat /proc/cmdline) > - Check rootdelay= (did the system wait long enough?) > - Check root= (did the system wait for the right device?) > - Missing modules (cat /proc/modules; ls /dev) > chvt: can't open console > ALERT! /dev/disk/by-uuid/3aee8de3-5b8f-4a89-9e89-108efe213983 does not > exist. Dropping to a shell! Seems like the by-uuid node for your harddrive containing rootfs didn't show up. The EBUSY from mount(/dev) seems like the biggest suspect. These: > hid: module verification failed: signature and/or required key missing - > tainting kernel > hidraw: raw HID events driver (C) Jiri Kosina > usbcore: registered new interface driver usbhid > usbhid: USB HID core driver are for sure unrelated. Please focus on figuring out why mounting /dev doesn't succeed. -- Jiri Kosina SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html