Hi!
Just updated 2 Raspi 3B with latest updates including kernel update to 4.4.38.5, after rebooting one came back normally, one is in panic, even after power cycling:
U-Boot 2016.09.01 (Oct 29 2016 - 10:33:23 +0000)
DRAM: 880 MiB
RPI 3 Model B (0xa02082)
MMC: bcm2835_sdhci: 0
reading uboot.env
** Unable to read "uboot.env" from mmc0:1 **
Using default environment
In: serial
Out: lcd
Err: lcd
Net: Net Initialization Skipped
No ethernet found.
starting USB...
USB0: Core Release: 2.80a
scanning bus 0 for devices... 3 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
scanning usb for ethernet devices... 1 Ethernet Device(s) found
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
7192 bytes read in 79 ms (88.9 KiB/s)
Found EFI removable media binary efi/boot/bootaa64.efi
reading efi/boot/bootaa64.efi
128000 bytes read in 28 ms (4.4 MiB/s)
## Starting EFI application at 0x01000000 ...
Scanning disks on usb...
Scanning disks on mmc...
MMC Device 1 not found
MMC Device 2 not found
MMC Device 3 not found
Found 5 disks
Welcome to GRUB!
Please press t to show the boot menu on this console
EFI stub: Booting Linux Kernel...
EFI stub: UEFI Secure Boot is enabled.
EFI stub: Using DTB from configuration table
EFI stub: Exiting boot services and installing virtual address map...
0.150949] kvm [1]: error: KVM vGIC probing failed
0.166409] bcm2835-aux-uart 3f215040.serial: could not get clk: -517
0.188754] VFS: Cannot open root device "disk/by-id/mmc-SL08G_0x034ba914-pa6
0.188766] Please append a correct "root=" boot option; here are the availa:
0.188772] Kernel panic - not syncing: VFS: Unable to mount root fs on unkn)
0.188779] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.4.38-5-default #1
0.188781] Hardware name: raspberrypi rpi/rpi, BIOS 2016.09.01 10/29/2016
0.188783] Call trace:
0.188793] <ffff80000008a340>] dump_backtrace+0x0/0x188
0.188798] <ffff80000008a4ec>] show_stack+0x24/0x30
0.188806] <ffff8000003e5990>] dump_stack+0x98/0xb8
0.188816] <ffff8000001c5168>] panic+0x118/0x25c
0.188820] <ffff800000c6dff8>] mount_block_root+0x230/0x2d0
0.188823] <ffff800000c6e10c>] mount_root+0x74/0x84
0.188826] <ffff800000c6e254>] prepare_namespace+0x138/0x180
0.188830] <ffff800000c6dc00>] kernel_init_freeable+0x240/0x264
0.188836] <ffff800000749c40>] kernel_init+0x20/0xf0
0.188840] <ffff800000085d90>] ret_from_fork+0x10/0x40
0.188848] CPU0: stopping
0.188852] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.38-5-default #1
0.188853] Hardware name: raspberrypi rpi/rpi, BIOS 2016.09.01 10/29/2016
0.188855] Call trace:
0.188860] <ffff80000008a340>] dump_backtrace+0x0/0x188
0.188864] <ffff80000008a4ec>] show_stack+0x24/0x30
0.188868] <ffff8000003e5990>] dump_stack+0x98/0xb8
0.188874] <ffff80000009017c>] handle_IPI+0x2a4/0x2b8
0.188878] <ffff8000000825c0>] bcm2836_arm_irqchip_handle_irq+0xc0/0xd0
0.188881] Exception stack(0xffff800000d53dc0 to 0xffff800000d53ef0)
0.188885] 3dc0: ffff800000d56000 0000000000000000 ffff800000d53f00 00000000
0.188889] 3de0: 0000000000000000 0100000000000000 0100000000000000 00000000
0.188893] 3e00: ffff800000d56b98 00000000ffff8ae0 ffff800000d61fd0 ffff8000
0.188896] 3e20: 00000000000009f0 0000000000000001 ffff80002f39cb00 00000001
0.188899] 3e40: 000000000000000c ffff800000d56b10 000000000000000f 00000003
0.188903] 3e60: 0000000000000001 ffff800000d56000 ffff800000d56b98 ffff8000
0.188906] 3e80: 0000000000000000 0000000000000000 ffff800000e3d000 ffff8008
0.188910] 3ea0: ffff800000d53f30 ffff800000762000 ffff800000d50000 ffff8000
0.188914] 3ec0: ffff800000086660 ffff800000d53f00 ffff800000086664 00000005
0.188916] 3ee0: 00000000000000c0 ffff800000d56b98
0.188920] <ffff800000085700>] el1_irq+0x80/0x100
0.188926] <ffff800000108b3c>] default_idle_call+0x24/0x40
0.188930] <ffff800000108de4>] cpu_startup_entry+0x28c/0x2e8
0.188933] <ffff800000749c18>] rest_init+0x80/0x88
0.188936] <ffff800000c6d9ac>] start_kernel+0x3dc/0x3f0
0.188940] <0000000000753000>] 0x753000
0.188943] CPU2: stopping
0.188947] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.4.38-5-default #1
0.188948] Hardware name: raspberrypi rpi/rpi, BIOS 2016.09.01 10/29/2016
0.188949] Call trace:
0.188954] <ffff80000008a340>] dump_backtrace+0x0/0x188
0.188959] <ffff80000008a4ec>] show_stack+0x24/0x30
0.188963] <ffff8000003e5990>] dump_stack+0x98/0xb8
0.188966] <ffff80000009017c>] handle_IPI+0x2a4/0x2b8
0.188970] <ffff8000000825c0>] bcm2836_arm_irqchip_handle_irq+0xc0/0xd0
0.188972] Exception stack(0xffff80002f2c3e00 to 0xffff80002f2c3f30)
0.188976] 3e00: ffff800000d56000 0000000000000000 ffff80002f2c3f40 00000000
0.188980] 3e20: 0000000000000000 0100000000000000 0100000000000000 00000002
0.188983] 3e40: ffff800000d56b98 00000000ffff8ae0 ffff80002f27abd0 ffff8000
0.188987] 3e60: 00000000000009f0 0000000000000018 0000000000000000 00000001
0.188990] 3e80: ffff80002f83168a ffff800000d56b10 00000000a7dc210e 00000000
0.188994] 3ea0: 0000000000000001 ffff800000d56000 ffff800000d56b98 ffff8000
0.188997] 3ec0: 0000000000000000 0000000000000000 ffff800000e3d000 ffff8008
0.189001] 3ee0: ffff80002f2c3f70 ffff800000762000 ffff80002f2c0000 ffff8000
0.189004] 3f00: ffff800000086660 ffff80002f2c3f40 ffff800000086664 00000005
0.189007] 3f20: 00000000000000c0 ffff800000d56b98
0.189011] <ffff800000085700>] el1_irq+0x80/0x100
0.189014] <ffff800000108b3c>] default_idle_call+0x24/0x40
0.189018] <ffff800000108de4>] cpu_startup_entry+0x28c/0x2e8
0.189022] <ffff80000008fadc>] secondary_start_kernel+0x134/0x148
0.189024] <000000000008295c>] 0x8295c
0.199319] CPU3: stopping
0.199323] CPU: 3 PID: 62 Comm: printk Not tainted 4.4.38-5-default #1
0.199325] Hardware name: raspberrypi rpi/rpi, BIOS 2016.09.01 10/29/2016
0.199326] Call trace:
0.199331] <ffff80000008a340>] dump_backtrace+0x0/0x188
0.199335] <ffff80000008a4ec>] show_stack+0x24/0x30
0.199339] <ffff8000003e5990>] dump_stack+0x98/0xb8
0.199343] <ffff80000009017c>] handle_IPI+0x2a4/0x2b8
0.199346] <ffff8000000825c0>] bcm2836_arm_irqchip_handle_irq+0xc0/0xd0
0.199349] Exception stack(0xffff80002f7e3c10 to 0xffff80002f7e3d40)
0.199352] 3c00: ffff800000e63000 ffff800c
0.199355] 3c20: 0000000000000000 cb88537fdc8ba626 0000000000000000 ffff8000
0.199359] 3c40: ffff800000f526b8 ffff800000e3c1a1 0000000000000001 00000001
0.199362] 3c60: ffff0000002b29e0 0000000000000001 00000000ffffffff ffff8000
0.199366] 3c80: ffff80002f77e220 0000000000000020 0000000000000001 ffff8000
0.199369] 3ca0: 0000000000000001 0000000000000007 0000000000000010 ffff8000
0.199373] 3cc0: ffff800000ea2000 ffff800000d7a000 0000000000000040 00000004
0.199376] 3ce0: ffff800000e637a8 ffff800000ea3bf0 ffff800000e63230 ffff8000
0.199380] 3d00: ffff800000e66a58 ffff80002f7e3d50 ffff800000116648 ffff8000
0.199383] 3d20: ffff80000011664c 0000000040000045 0000000000000004 ffff8008
0.199387] <ffff800000085700>] el1_irq+0x80/0x100
0.199392] <ffff800000117820>] printk_kthread_func+0x80/0xa0
0.199398] <ffff8000000e11ac>] kthread+0xe4/0xf8
0.199401] <ffff800000085d90>] ret_from_fork+0x10/0x40
1.008909] --- end Kernel panic - not syncing: VFS: Unable to mount root f)
switching back to 4.4.38.4 resolves issue for the moment, but how to move forward now? :\
Many thanks in advance…
