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HeXiLeD
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 Posted: Mon Aug 04, 2008 7:12 pm Post subject: Kernel 2.6.26 (vanilla) - section mismatch [SOLVED] |
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While compiling 2.6.26 kernel i got the following errors:
| Code: | WARNING: vmlinux.o(.text+0x1778a): Section mismatch in reference from the function kvm_setup_secondary_clock() to the function .cpuinit.text:setup_secondary_APIC_clock()
The function kvm_setup_secondary_clock() references
the function __cpuinit setup_secondary_APIC_clock().
This is often because kvm_setup_secondary_clock lacks a __cpuinit
annotation or the annotation of setup_secondary_APIC_clock is wrong.
WARNING: vmlinux.o(.text+0x1eecb): Section mismatch in reference from the function arch_setup_additional_pages() to the variable .init.data:vdso_end
The function arch_setup_additional_pages() references
the variable __initdata vdso_end.
This is often because arch_setup_additional_pages lacks a __initdata
annotation or the annotation of vdso_end is wrong.
WARNING: vmlinux.o(.text+0x1eed8): Section mismatch in reference from the function arch_setup_additional_pages() to the variable .init.data:vdso_start
The function arch_setup_additional_pages() references
the variable __initdata vdso_start.
This is often because arch_setup_additional_pages lacks a __initdata
annotation or the annotation of vdso_start is wrong.
WARNING: vmlinux.o(.cpuinit.text+0x46f9): Section mismatch in reference from the function uv_cpu_init() to the function .init.text:uv_system_init()
The function __cpuinit uv_cpu_init() references
a function __init uv_system_init().
If uv_system_init is only used by uv_cpu_init then
annotate uv_system_init with a matching annotation. |
I am a bit lost with this output.
What is causing it and if possible how to avoid it or remove it.
I have tried to recompile with other options to see if i could get this solved; but it kinda didnt solve the problem.
my kernel config is here
Any ideas?
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Last edited by HeXiLeD on Sat Aug 16, 2008 6:54 pm; edited 2 times in total |
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alex.blackbit
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Joined: 26 Jul 2005
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| Posted: Mon Aug 04, 2008 8:08 pm Post subject: |
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unfortunately section mismatches are... well... normal these days.
don't care about them. hopefully they will go away soon. |
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pappy_mcfae
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HeXiLeD
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pappy_mcfae
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alex.blackbit
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| Posted: Mon Aug 04, 2008 10:08 pm Post subject: |
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this applies to both gentoo- and vanilla-sources.
there is already a bug for that.
google knows about that too.
there were patches up for inclusion in .26, maybe they will make it in .27.
somebody really curious could try out a -rc version. |
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alex.blackbit
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| Posted: Mon Aug 04, 2008 10:58 pm Post subject: |
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| on -rc1 the mismatches still exist. |
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HeXiLeD
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pappy_mcfae
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| Posted: Sun Aug 17, 2008 5:46 am Post subject: |
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I also have news on this issue. It seems that after moving a kernel up via make oldconfig, sometimes errors travel along in the code of .config. Since the kernel that was running on this machine came into being around 2.6.18.x, that's a lot of time to pick up a lot of errors. That's 8 major version changes that config had been through.
So, what I did was to use the old .config as a pattern, but to create completely new kernel .configs using make defconfig. I put two make xconfig sessions side by side; the new one and the old pattern, and just clicked all the options that were listed. I also took the time to do some more experimentation with my kernels.
When I compiled the new .configs into kernels, there were no mismatch errors. Also, the new kernel design seems to be working ok, too. That's a good thing!
So, there is a way to stop the mismatch errors; create a new config from your old one instead of doing a make oldconfig.
I think I'm only going to worry about that when it becomes problematic again. It's a PITA to rebuild a kernel from the ashes of the old.
Blessed be!
Pappy
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