[pso] [Tema4] Not synching in hook

[Costin Boldisor]

Cred ca am apreciat gresit motivul erorii. Am pus acum doar o alocare
de structura fwr, care se face din metoda "getRule". Alocare se face cu
codul:
struct fwr* rez = (struct fwr*) kmalloc(sizeof(struct fwr), GFP_KERNEL);

if(rez == NULL){

   afis("Nu pot sa aloc un fwr");

    return NULL;

}



Acum imi afiseaza urmatoare eroare. Care este cauza?


BUG: sleeping function called from invalid context at mm/slab.c:2901
in_atomic():1, irqs_disabled():0
[<c0104936>] show_trace_log_lvl+0x176/0x190
[<c0104f0d>] show_trace+0xd/0x10
[<c0104fc9>] dump_stack+0x19/0x20
[<c0112b7a>] __might_sleep+0x9a/0xb0
[<c0159acf>] kmem_cache_alloc+0x9f/0xc0
[<c882b1cb>] getRule+0x1b/0x70 [ipdriver]
[<c882b2bd>] myHookOut+0x9d/0x120 [ipdriver]
[<c02cde14>] nf_iterate+0x54/0x80
[<c02cdf69>] nf_hook_slow+0x49/0xd0
[<c02d84ff>] ip_queue_xmit+0x2af/0x470
[<c02e81fd>] tcp_transmit_skb+0x37d/0x7e0
[<c02eb015>] tcp_connect+0x2c5/0x370
[<c02ee6e4>] tcp_v4_connect+0x3e4/0x700
[<c02f986d>] inet_stream_connect+0x1bd/0x240
[<c02b31d5>] sys_connect+0x55/0x80
[<c02b4232>] sys_socketcall+0x82/0x1e0
[<c010316d>] sysenter_past_esp+0x56/0x99
[<40017410>] 0x40017410