[Buildroot] configuring buildroot tolchain to compile existing kernel source

[Rohit Kumar]

Hello Thomas,

i already have kernel source and cross toolchain from the vendor but i want
to create toolchain with buildroot and compile the kernel.

what are the parameters crucial while configuring buildroot for such
application?
i mean gcc version, kernel headers version or anything else?

i used toolchain by buildroot, compiled the kernel but when the board boots
with compiled kernel...
it generates following and doesnt boot.

Starting kernel ...

[    0.000000] Slab corruption: size-32 start=c62011e0, len=32
[    0.000000] 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
[    0.000000] Next obj: start=c6201200, len=32
[    0.000000] 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
[    0.000000] 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
[    0.000000] Slab corruption: size-64 start=c6202120, len=64
[    0.000000] 030: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
[    0.000000] Next obj: start=c6202160, len=64
[    0.000000] 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
[    0.000000] 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
[    0.000000] Slab corruption: size-32 start=c6201700, len=32
[    0.000000] 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
[    0.000000] Prev obj: start=c62016e0, len=32
[    0.000000] 000: 00 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00
[    0.000000] 010: 00 17 20 c6 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
[    0.000000] Next obj: start=c6201720, len=32
[    0.000000] 000: 00 00 00 00 01 00 00 00 01 00 00 00 00 00 00 00
[    0.000000] 010: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a a5
[    0.000000] Slab corruption: size-32 start=c62016a0, len=32
[    0.000000] 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
[    0.000000] Prev obj: start=c6201680, len=32
[    0.000000] 000: 00 00 00 00 01 00 00 00 01 00 00 00 00 00 00 00
[    0.000000] 010: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
[    0.000000] Next obj: start=c62016c0, len=32
[    0.000000] 000: 00 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00
[    0.000000] 010: 00 3a 20 c6 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a a5
[    0.000000] Slab corruption: size-32 start=c6201700, len=32
[    0.000000] 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b

buildroot configuration file is attached for reference

With Regards,

Rohit Kumar
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