: Kernel panic issue for 'armv7athf-neon' target variant.

: Kernel panic issue for 'armv7athf-neon' target variant.

[Prashant Purohit]

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Hi,

I am trying to boot kernel image for 'armv7athf-neon' using QEMU.

To do the same, I have included the 'tune-arma7.inc'
(/meta/conf/machine/include/arm/arch-armv7a.inc) and configured DEFAULTTUNE
variable to 'armv7athf-neon'.
I am successful in building the kernel image and QEMU for this variant but
when I try to boot the image using runqemu, I am getting kernel panic error.

The log for the same is attached with this mail.
Has anyone faced the same issue previously or has any inputs for it?

Regards,
Prashant

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Freeing unused kernel memory: 332K (c0785000 - c07d8000)

Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004

 

CPU: 0 PID: 1 Comm: init Not tainted 3.14.29ltsi-yocto-standard #1

Backtrace:

[<c0011a6c>] (dump_backtrace) from [<c0011ccc>] (show_stack+0x20/0x24)

r6:c7870000 r5:c0834ae8 r4:c7870000

[<c0011cac>] (show_stack) from [<c05a00f0>] (dump_stack+0x20/0x28)

[<c05a00d0>] (dump_stack) from [<c059c4fc>] (panic+0x8c/0x1d4)

[<c059c474>] (panic) from [<c001ee64>] (do_exit+0x44c/0x850)

r3:c7878000 r2:c7870000 r1:00000004 r0:c06f0645

r7:00000001

[<c001ea18>] (do_exit) from [<c001f310>] (do_group_exit+0x5c/0xbc)

r7:c786e018

[<c001f2b4>] (do_group_exit) from [<c002be4c>] (get_signal_to_deliver+0x4c4/0x518)

r4:00000004

[<c002b988>] (get_signal_to_deliver) from [<c0011038>] (do_signal+0xc4/0x3dc)

r10:c786e000 r9:00000000 r8:c786e010 r7:00000000 r6:00000000 r5:c786ffb0

r4:00000000

[<c0010f74>] (do_signal) from [<c00114d0>] (do_work_pending+0x6c/0xf8)

r10:c786e000 r9:c786e000 r8:00000000 r7:00000000 r6:c786ffb0 r5:c786e000

r4:00000000

[<c0011464>] (do_work_pending) from [<c000e37c>] (work_pending+0xc/0x20)

r6:ffffffff r5:20000010 r4:b6fbae40

Re: : Kernel panic issue for 'armv7athf-neon' target variant.

[Philip Balister]

On 03/10/2015 09:24 AM, Prashant Purohit wrote:
> Hi,
> 
> I am trying to boot kernel image for 'armv7athf-neon' using QEMU.
> 
> To do the same, I have included the 'tune-arma7.inc'
> (/meta/conf/machine/include/arm/arch-armv7a.inc) and configured DEFAULTTUNE
> variable to 'armv7athf-neon'.
> I am successful in building the kernel image and QEMU for this variant but
> when I try to boot the image using runqemu, I am getting kernel panic error.
> 
> The log for the same is attached with this mail.
> Has anyone faced the same issue previously or has any inputs for it?

I've seen similar issues building the kernel with thumb2, I went to
armv7ahf-neon (dropped thunb2) and the issue cleared up.

Philip


> 
> Regards,
> Prashant
> 
> 
> 

Re: : Kernel panic issue for 'armv7athf-neon' target variant.

[Prashant Purohit]

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Hi Philip,

After making the changes suggested by you, I am still getting the same
error.
I am using Yocto 1.8 M1 release.

Regards,
Prashant

On Wed, Mar 11, 2015 at 12:31 AM, Philip Balister <philip@balister.org>
wrote:

> On 03/10/2015 09:24 AM, Prashant Purohit wrote:
> > Hi,
> >
> > I am trying to boot kernel image for 'armv7athf-neon' using QEMU.
> >
> > To do the same, I have included the 'tune-arma7.inc'
> > (/meta/conf/machine/include/arm/arch-armv7a.inc) and configured
> DEFAULTTUNE
> > variable to 'armv7athf-neon'.
> > I am successful in building the kernel image and QEMU for this variant
> but
> > when I try to boot the image using runqemu, I am getting kernel panic
> error.
> >
> > The log for the same is attached with this mail.
> > Has anyone faced the same issue previously or has any inputs for it?
>
> I've seen similar issues building the kernel with thumb2, I went to
> armv7ahf-neon (dropped thunb2) and the issue cleared up.
>
> Philip
>
>
> >
> > Regards,
> > Prashant
> >
> >
> >
>

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