Re: [gem5-users] Kernel Panic in FS ARM simulation

iagosilvestrehp Fri, 07 Feb 2020 09:38:50 -0800

Thanks for the help and I found my error, I didnt know multiple image files were now supported so I was wrongly altering the fsconfig script.Now the simulation is sucessfully booting the operating system.

On Feb 7, 2020 2:22 PM, Giacomo Travaglini <[email protected]> wrote:

Your log says: "No working init found"

Are you sure you have a valid init script/executable in your disk image?

Giacomo

From: Iago . <[email protected]>
Sent: 07 February 2020 13:28
To: Giacomo Travaglini <[email protected]>; [email protected] <[email protected]>
Subject: RE: [gem5-users] Kernel Panic in FS ARM simulation

Thank you, this did fix the root device error but now the error being given is the following:

[ 0.700742] Freeing unused kernel memory: 384K

[ 0.700787] Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance.

[ 0.700799] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.0+ #1

[ 0.700806] Hardware name: V2P-AARCH64 (DT)

[ 0.700812] Call trace:

[ 0.700820] [<ffffff8008089178>] dump_backtrace+0x0/0x380

[ 0.700829] [<ffffff800808950c>] show_stack+0x14/0x20

[ 0.700838] [<ffffff8008633ab4>] dump_stack+0x8c/0xb0

[ 0.700846] [<ffffff80080b8714>] panic+0x118/0x26c

[ 0.700855] [<ffffff80086458ec>] kernel_init+0xec/0x100

[ 0.700864] [<ffffff8008085350>] ret_from_fork+0x10/0x18

[ 0.700872] SMP: stopping secondary CPUs

[ 0.700879] Kernel Offset: disabled

[ 0.700885] CPU features: 0x002492

[ 0.700891] Memory Limit: 1024 MB

[ 0.700902] ---[ end Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance.

De: gem5-users <[email protected]> em nome de Giacomo Travaglini <[email protected]>
Enviado: sexta-feira, 7 de fevereiro de 2020 08:34
Para: [email protected] <[email protected]>
Assunto: Re: [gem5-users] Kernel Panic in FS ARM simulation

This is the key:

[ 0.704992] VFS: Cannot open root device "sda1" or unknown-block(8,1): error -6

[ 0.705000] Please append a correct "root=" boot option; here are the available partitions:

[ 0.705010] 0800 4194304 sda

[ 0.705013] driver: sd

Just run simulation with the --root=/dev/sda option and let me know if it works

Giacomo

From: gem5-users <[email protected]> on behalf of Iago . <[email protected]>
Sent: 07 February 2020 06:34
To: [email protected] <[email protected]>
Subject: [gem5-users] Kernel Panic in FS ARM simulation

I've been trying to make some simulations with the files available at m5 website called aarch-system-20180409.tar.xz and been getting the following error during full system emulation, the kernel and disk images used are as follow:

--disk-image=linaro-minimal-aarch64.img --kernel=vmlinux.vexpress_gem5_v1_64 --machine-type=VExpress_GEM5_V1 --dtb=armv8_gem5_v1_4cpu.dtb

And the error ive been getting is

[ 0.704992] VFS: Cannot open root device "sda1" or unknown-block(8,1): error -6

[ 0.705000] Please append a correct "root=" boot option; here are the available partitions:

[ 0.705010] 0800 4194304 sda

[ 0.705013] driver: sd

[ 0.705024] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,1)

[ 0.705033] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.0+ #1

[ 0.705040] Hardware name: V2P-AARCH64 (DT)

[ 0.705046] Call trace:

[ 0.705054] [<ffffff8008089178>] dump_backtrace+0x0/0x380

[ 0.705063] [<ffffff800808950c>] show_stack+0x14/0x20

[ 0.705072] [<ffffff8008633ab4>] dump_stack+0x8c/0xb0

[ 0.705080] [<ffffff80080b8714>] panic+0x118/0x26c

[ 0.705090] [<ffffff80088710e4>] mount_block_root+0x184/0x25c

[ 0.705099] [<ffffff80088712d8>] mount_root+0x11c/0x134

[ 0.705108] [<ffffff800887142c>] prepare_namespace+0x13c/0x184

[ 0.705118] [<ffffff8008870d28>] kernel_init_freeable+0x1b0/0x1d0

[ 0.705127] [<ffffff8008645810>] kernel_init+0x10/0x100

[ 0.705136] [<ffffff8008085350>] ret_from_fork+0x10/0x18

[ 0.705144] SMP: stopping secondary CPUs

[ 0.705151] Kernel Offset: disabled

[ 0.705157] CPU features: 0x002492

[ 0.705164] Memory Limit: 1024 MB

[ 0.705174] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,1)

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Re: [gem5-users] Kernel Panic in FS ARM simulation

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