On Tue, 26 Jun 2007 10:46:36 -0700 (PDT) [EMAIL PROTECTED] wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=8679
>
> Summary: Section mismatch: reference to .init.text
> Product: Other
> Version: 2.5
> KernelVersion: 2.6.22-rc6
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Configuration
> AssignedTo: [EMAIL PROTECTED]
> ReportedBy: [EMAIL PROTECTED]
>
>
> Software Environment:
> gcc 3.4.6, binutils 2.17
>
> Problem Description:
> Warnings appeared while building kernel:
>
> WARNING: arch/i386/kernel/built-in.o(.data+0x2148): Section mismatch:
> reference
> to .init.text: (between 'thermal_throttle_cpu_notifier' and 'mtrr_mutex')
> WARNING: kernel/built-in.o(.text+0x15f84): Section mismatch: reference to
> .init.text: (between 'kthreadd' and 'init_waitqueue_head')
I don't see the kernel/built-in.o warning when I build this (I have
binutils 2.16++). Can you test the patch below to verify that it
fixes the warning?
On the other warning ('thermal_throttle_cpu_notifier'), we have:
static struct notifier_block thermal_throttle_cpu_notifier =
{
.notifier_call = thermal_throttle_cpu_callback,
};
where CONFIG_CPU_HOTPLUG=n, so __cpuinit == __init in:
static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb,
unsigned long action,
void *hcpu)
so CPU hotplug actions should never happen here. Still, we have
a registered notifier that is in __init space and has been discarded... :(
Any suggestions out there?
---
From: Randy Dunlap <[EMAIL PROTECTED]>
kthreadd_setup() is in an __init section, but we know that it's
safe to be called from kthreadd() since the latter is only called
at kernel init time, so mark kthreadd_setup() __init_refok so
that modpost won't complain about what text section it is in.
Signed-off-by: Randy Dunlap <[EMAIL PROTECTED]>
---
kernel/kthread.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.22-rc6.orig/kernel/kthread.c
+++ linux-2.6.22-rc6/kernel/kthread.c
@@ -215,7 +215,7 @@ int kthread_stop(struct task_struct *k)
EXPORT_SYMBOL(kthread_stop);
-static __init void kthreadd_setup(void)
+static __init_refok void kthreadd_setup(void)
{
struct task_struct *tsk = current;
-
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