[BUG] 2.6.29-rc5 on powerpc with CONFIG_PREEMPT

[Sachin P. Sant]

Somehow i accidentally enabled PREEMPT option for a 2.6.29-rc5
kernel. While booting the same on a powerpc box observed
lots of following BUG() statements. 

BUG: using smp_processor_id() in preemptible [00000000] code: modprobe/2218
caller is .hpte_need_flush+0x54/0x324
Call Trace:
[c0000000ea71b820] [c000000000010974] .show_stack+0x70/0x184 (unreliable)
[c0000000ea71b8d0] [c00000000026dc90] .debug_smp_processor_id+0xec/0x120
[c0000000ea71b960] [c000000000034cc4] .hpte_need_flush+0x54/0x324
[c0000000ea71ba20] [c0000000001125a0] .vunmap_page_range+0x14c/0x1f4
[c0000000ea71bae0] [c000000000113018] .remove_vm_area+0x44/0xb8
[c0000000ea71bb70] [c0000000001131bc] .__vunmap+0x58/0x12c
[c0000000ea71bc10] [c0000000000b2b78] .load_module+0x1640/0x17a0
[c0000000ea71bd90] [c0000000000b2d54] .SyS_init_module+0x7c/0x220
[c0000000ea71be30] [c00000000000855c] syscall_exit+0x0/0x40

.config and relevant dmesg log attached.

If it's not a valid configuration please ignore the noise.

Thanks
-Sachin


-- 

---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
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