Hi

This happens when triggering sysrq-B to reboot box:

SysRq : Emergency Sync
Emergency Sync complete
SysRq : Resetting
Badness in smp_call_function at arch/i386/kernel/smp.c:552
 [<c011192e>] smp_call_function+0xfe/0x110
 [<c011ccf4>] call_console_drivers+0x74/0x100
 [<c011d0cf>] release_console_sem+0x7f/0xc0
 [<c011198b>] smp_send_stop+0x1b/0x30
 [<c0111204>] machine_shutdown+0x34/0x60
 [<c011123a>] machine_restart+0xa/0x80
 [<c011ce97>] printk+0x17/0x20
 [<c021a1fc>] __handle_sysrq+0x7c/0x110
 [<c02143f2>] kbd_event+0x92/0xf0
 [<c02aaa6a>] input_event+0xea/0x3e0
 [<c02ace1f>] atkbd_report_key+0x2f/0x80
 [<c02ad05b>] atkbd_interrupt+0x1eb/0x510
 [<c01256ed>] __mod_timer+0xed/0x140
 [<c02327cc>] serio_interrupt+0x4c/0x87
 [<c02333b1>] i8042_interrupt+0x171/0x250
 [<c0139299>] handle_IRQ_event+0x29/0x60
 [<c01393a4>] __do_IRQ+0xd4/0x130
 [<c01052e3>] do_IRQ+0x23/0x40
 [<c0103a02>] common_interrupt+0x1a/0x20


Regards.

-- 
Pedro Larroy Tovar | Linux & Network consultant |  pedro%larroy.com 
Make debian mirrors with debian-multimirror: http://pedro.larroy.com/deb_mm/
	* Las patentes de programación son nocivas para la innovación * 
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