Understanding of kernel stack print

[meenakshi aggarwal]

Hi,

On reboot my system is showing kernel stack trace as :

root at ds:~# reboot

INIT: Sending processes the TERM signal
INIT
Stopping Dropbear SSH server: stopped /usr/sbin/dropbear (pid 2152)
dropbear.
Stopping network benchmark server: netserverstopped /usr/sbin/netserver
(pid 2157)
.
Stopping system log daemon...0
Stopping kernel log daemon...0
Deconfiguring network interfaces... done.
Sending all processes the TERM signal...
Sending all processes the KILL signal...
Unmounting remote filesystems...
Deactivating swap...
Unmounting local filesystems...
Rebooting... Disabling non-boot CPUs ...

BUG: scheduling while atomic: reboot/2210/0x00000002
Modules linked in:
Preemption disabled at:[<  (null)>]   (null)

Call Trace:
[ebe09b20] [c0007094] show_stack+0x44/0x150 (unreliable)
[ebe09b60] [c064f5f4] __schedule_bug+0x84/0x9c
[ebe09b70] [c064c1c0] __schedule+0x510/0x5e0
[ebe09c80] [c064aea4] schedule_timeout+0x164/0x1d0
[ebe09cc0] [c064bb10] wait_for_common+0xd0/0x1b0
[ebe09d00] [c004db58] kthread_create_on_node+0xa8/0x140
[ebe09d70] [c00a42cc] _cpu_down+0x1ec/0x4e0
[ebe09de0] [c002d8a0] disable_nonboot_cpus+0x90/0x160
[ebe09e10] [c004044c] kernel_restart+0x1c/0x90
[ebe09e20] [c004069c] sys_reboot+0x1cc/0x250
[ebe09f40] [c000efe0] ret_from_syscall+0x0/0x3c
--- Exception: c01 at 0xff17684
    LR = 0x10000c00
BUG: scheduling while atomic: reboot/2210/0x00000002
Modules linked in:
Preemption disabled at:[<  (null)>]   (null)

Call Trace:
[ebe09b90] [c0007094] show_stack+0x44/0x150 (unreliable)
[ebe09bd0] [c064f5f4] __schedule_bug+0x84/0x9c
[ebe09be0] [c064c1c0] __schedule+0x510/0x5e0
[ebe09cf0] [c064aea4] schedule_timeout+0x164/0x1d0
[ebe09d30] [c064bb10] wait_for_common+0xd0/0x1b0
[ebe09d70] [c00a42f8] _cpu_down+0x218/0x4e0
[ebe09de0] [c002d8a0] disable_nonboot_cpus+0x90/0x160
[ebe09e10] [c004044c] kernel_restart+0x1c/0x90
[ebe09e20] [c004069c] sys_reboot+0x1cc/0x250
[ebe09f40] [c000efe0] ret_from_syscall+0x0/0x3c
--- Exception: c01 at 0xff17684
    LR = 0x10000c00


and so on.

Any kind of help will be appreciated.

Also i want to know the significance of *0x84/0x9c*

" __schedule_bug+*0x84/0x9c*"
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