From: Keshavamurthy Anil S <anil.s.keshavamurthy@intel.com>
I booted IA64 kernel with "maxcpus=" set to less than the total available
processors in the system. Then I tried to online the CPU which was offline
due to "maxcpus=" restirction. i.e when I tried to online the CPU which
never was online at boot crashed the system.
Signed-off-by: Anil Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/arch/ia64/kernel/smpboot.c | 2 +-
25-akpm/kernel/fork.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff -puN arch/ia64/kernel/smpboot.c~online-cpu-with-maxcpus-option-panics arch/ia64/kernel/smpboot.c
--- 25/arch/ia64/kernel/smpboot.c~online-cpu-with-maxcpus-option-panics 2004-09-11 16:56:27.325122240 -0700
+++ 25-akpm/arch/ia64/kernel/smpboot.c 2004-09-11 16:56:27.330121480 -0700
@@ -356,7 +356,7 @@ start_secondary (void *unused)
return cpu_idle();
}
-struct pt_regs * __init idle_regs(struct pt_regs *regs)
+struct pt_regs * __devinit idle_regs(struct pt_regs *regs)
{
return NULL;
}
diff -puN kernel/fork.c~online-cpu-with-maxcpus-option-panics kernel/fork.c
--- 25/kernel/fork.c~online-cpu-with-maxcpus-option-panics 2004-09-11 16:56:27.326122088 -0700
+++ 25-akpm/kernel/fork.c 2004-09-11 16:56:27.332121176 -0700
@@ -1068,13 +1068,13 @@ bad_fork_free:
goto fork_out;
}
-struct pt_regs * __init __attribute__((weak)) idle_regs(struct pt_regs *regs)
+struct pt_regs * __devinit __attribute__((weak)) idle_regs(struct pt_regs *regs)
{
memset(regs, 0, sizeof(struct pt_regs));
return regs;
}
-task_t * __init fork_idle(int cpu)
+task_t * __devinit fork_idle(int cpu)
{
task_t *task;
struct pt_regs regs;
_