[ 2120.646194] test2: module license 'unspecified' taints kernel.
[ 2120.646203] Disabling lock debugging due to kernel taint
[ 2120.646552] Hello, I'm writing test2
[ 2120.646555] do_init_module: 'test2'->init suspiciously returned 25, it should follow 0/-E convention
[ 2120.646555] do_init_module: loading module anyway...
[ 2120.646558] CPU: 2 PID: 6576 Comm: insmod Tainted: PF          O 3.11.0-26-generic #45~precise1-Ubuntu
[ 2120.646559] Hardware name: Hewlett-Packard HP Pavilion dv6 Notebook PC/181B, BIOS F.06 03/01/2012
[ 2120.646561]  0000000000000019 ffff8801891ffe68 ffffffff8173f07b 0000000000000007
[ 2120.646564]  ffffffffa0411000 ffff8801891ffe88 ffffffff81733571 ffff8801891ffef8
[ 2120.646567]  ffffffffa0411000 ffff8801891ffee8 ffffffff810d2329 ffffffff810cf8a0
[ 2120.646569] Call Trace:
[ 2120.646576]  [<ffffffff8173f07b>] dump_stack+0x46/0x58
[ 2120.646579]  [<ffffffff81733571>] do_init_module+0xf6/0x1d1
[ 2120.646583]  [<ffffffff810d2329>] load_module+0x4d9/0x600
[ 2120.646586]  [<ffffffff810cf8a0>] ? show_initstate+0x50/0x50
[ 2120.646588]  [<ffffffff810d2504>] SyS_init_module+0xb4/0x100
[ 2120.646592]  [<ffffffff81753cdd>] system_call_fastpath+0x1a/0x1f