in mconsole_io_token_refill
about to call strlen
about to call simple_strtoul
Kernel panic - not syncing: Kernel mode fault at addr 0x10, ip 0x0

EIP: 0000:[<00000000>] CPU: 0 Not tainted EFLAGS: 00000000
    Not tainted
EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: 00000000 EBP: 00000000 DS: 0000 ES: 0000
Call Trace: 
803d7040:  [<80036d58>] vprintk+0xe4/0x134
803d7050:  [<8004647a>] notifier_call_chain+0x1e/0x38
803d7070:  [<800361e5>] panic+0x55/0x104
803d7080:  [<8001ee35>] segv+0x85/0x224
803d7090:  [<8001ef45>] segv+0x195/0x224
803d70b0:  [<8033dd78>] __syscall_error_1+0x6/0x12
803d7100:  [<8001d46d>] change_signals+0x41/0x6c
803d7170:  [<8001f2f4>] segv_handler+0x160/0x208
803d7190:  [<8001f263>] segv_handler+0xcf/0x208
803d71b0:  [<800241c6>] sig_handler_common_skas+0x8a/0xc0
803d71c0:  [<800241e5>] sig_handler_common_skas+0xa9/0xc0
803d71e0:  [<8002e69d>] sig_handler+0x31/0x34
803d7200:  [<803259e8>] __restore+0x0/0x8
803d7240:  [<8020286e>] simple_strtoul+0x1a/0xe0
803d7260:  [<8025f931>] qdisc_restart+0x15/0x168
803d7270:  [<800418ec>] __mod_timer+0x78/0xa4
803d7294:  [<8033c35a>] tcgetattr+0x5e/0x94
803d72e0:  [<8033be06>] isatty+0x12/0x2c
803d7330:  [<80025899>] generic_console_write+0xf1/0x118
803d73dc:  [<80325cc7>] sigemptyset+0x17/0x30
803d73f0:  [<8001d5b0>] set_signals+0x6c/0x10c
803d74a0:  [<80036eb2>] release_console_sem+0x72/0xb0
803d74b0:  [<80036e54>] release_console_sem+0x14/0xb0
803d74c0:  [<80036d58>] vprintk+0xe4/0x134
803d74f0:  [<80028fb8>] mconsole_io_token_refill+0x4c/0x8c
803d7510:  [<8002857a>] mconsole_interrupt+0x3a/0xc4
803d77e0:  [<800508ec>] handle_IRQ_event+0x28/0x70
803d7810:  [<800509e2>] __do_IRQ+0xae/0xe4
803d7830:  [<80018c93>] do_IRQ+0x33/0x44
803d7840:  [<80018dbb>] sigio_handler+0xaf/0x104
803d7860:  [<800241c6>] sig_handler_common_skas+0x8a/0xc0
803d7870:  [<80024166>] sig_handler_common_skas+0x2a/0xc0
803d7884:  [<80023bcc>] start_kernel_proc+0x0/0x34
803d7890:  [<8002e69d>] sig_handler+0x31/0x34
803d78b0:  [<803259e8>] __restore+0x0/0x8
803d78cc:  [<80023bcc>] start_kernel_proc+0x0/0x34
803d78f0:  [<8033b21a>] __libc_nanosleep+0x1a/0x58
803d7934:  [<8001e61c>] boot_timer_handler+0x0/0x40
803d793c:  [<803259e8>] __restore+0x0/0x8
803d797c:  [<80325cc7>] sigemptyset+0x17/0x30
803d799c:  [<80325cc7>] sigemptyset+0x17/0x30
803d79b0:  [<8001d46d>] change_signals+0x41/0x6c
803d79cc:  [<803259e8>] __restore+0x0/0x8
803d7a24:  [<803258ed>] __libc_longjmp+0x3d/0x50
803d7a28:  [<803258dd>] __libc_longjmp+0x2d/0x50
803d7a40:  [<80023591>] switch_threads+0x4d/0x50
803d7a5c:  [<80325cc7>] sigemptyset+0x17/0x30
803d7a70:  [<8001d46d>] change_signals+0x41/0x6c
803d7b10:  [<8001d4b2>] unblock_signals+0xa/0x10
803d7b20:  [<80023836>] switch_to_skas+0x8a/0xa0
803d7b30:  [<80032d7c>] finish_task_switch+0x24/0x64
803d7b50:  [<80362c2c>] schedule+0x2c0/0x4b0
803d7b90:  [<8001e3eb>] idle_sleep+0x1f/0x24
803d7ba0:  [<8001e26f>] uml_idle_timer+0x37/0x50
803d7bb0:  [<8001b43d>] default_idle+0x5d/0x6c
803d7bc0:  [<8001b447>] default_idle+0x67/0x6c
803d7be0:  [<80023bc5>] init_idle_skas+0x25/0x2c
803d7bf0:  [<8000253b>] start_kernel+0x16b/0x1a4
803d7bf4:  [<803258a1>] __sigjmp_save+0x2d/0x3c
803d7c00:  [<80023bf7>] start_kernel_proc+0x2b/0x34
803d7c08:  [<80023bcc>] start_kernel_proc+0x0/0x34
803d7c10:  [<8001af1d>] run_kernel_thread+0x45/0x4c
803d7c28:  [<80023bcc>] start_kernel_proc+0x0/0x34
803d7c38:  [<8001aef8>] run_kernel_thread+0x20/0x4c
803d7cd4:  [<80023bcc>] start_kernel_proc+0x0/0x34
803d7ce0:  [<8002390e>] new_thread_handler+0xc2/0x114
803d7ce4:  [<80023bcc>] start_kernel_proc+0x0/0x34
803d7cf0:  [<80023521>] thread_wait+0x2d/0x50
803d7d20:  [<803259e8>] __restore+0x0/0x8
803d7d60:  [<80325c41>] kill+0x11/0x20