Hi, I have 2 scenarios in which I am getting a NULL pointer dereference: 1) root filesystem over nfs 2) telnet connection The issue appeared on this commit http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f8965467f366fd18f01feafb5db10512d7b4422c The driver I am working with is drivers/net/ks8851.c Any help will be highly appreciated... --- Scenario 1 | root filesystem over nfs Looking up port of RPC 100005/1 on 10.87.231.229 VFS: Mounted root (nfs filesystem) on device 0:10. Freeing init memory: 128K Unable to handle kernel NULL pointer dereference at virtual address 00000000 [..] PC is at put_page+0xc/0x120 LR is at skb_release_data+0x74/0xb8 [..] Backtrace: [<c0086dd0>] (put_page+0x0/0x120) [<c01d0a48>] (skb_release_data+0x0/0xb8) [<c01d1044>] (skb_release_all+0x0/0x20) [<c01d075c>] (__kfree_skb+0x0/0xbc) [<c01d0818>] (consume_skb+0x0/0x58) [<c01d39cc>] (skb_free_datagram+0x0/0x40) [<c023ff74>] (xs_udp_data_ready+0x0/0x1e8) [<c01ce034>] (sock_queue_rcv_skb+0x0/0x1c0) [<c01fbba8>] (ip_queue_rcv_skb+0x0/0x58) [<c02176c0>] (__udp_queue_rcv_skb+0x0/0x18c) [<c0218e28>] (udp_queue_rcv_skb+0x0/0x348) [<c02195a4>] (__udp4_lib_rcv+0x0/0x564) [<c0219b08>] (udp_rcv+0x0/0x20) [<c01f5f34>] (ip_local_deliver+0x0/0x264) [<c01f586c>] (ip_rcv+0x0/0x6c8) [<c01d7ec0>] (__netif_receive_skb+0x0/0x2d0) [<c01d8190>] (process_backlog+0x0/0x16c) [<c01d8e14>] (net_rx_action+0x0/0x18c) [<c00521a0>] (__do_softirq+0x0/0x12c) [<c00522cc>] (irq_exit+0x0/0x70) [<c0028000>] (asm_do_IRQ+0x0/0xc8) Complete log at http://pastebin.mozilla.org/728027 --- Scenario 2 1. Root filesystem booted in ram 2. eth0 brought up 3. telnetd daemon started 4. tried to connect through telnet # Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = d98e8000 [..] PC is at put_page+0xc/0x120 LR is at skb_release_data+0x74/0xb8 [..] Backtrace: [<c0086dd0>] (put_page+0x0/0x120) [<c01d0a48>] (skb_release_data+0x0/0xb8) [<c01d1044>] (skb_release_all+0x0/0x20) [<c01d075c>] (__kfree_skb+0x0/0xbc) [<c0202444>] (tcp_recvmsg+0x0/0x93c) [<c02201e8>] (inet_recvmsg+0x0/0xec) [<c01c7fd0>] (sock_aio_read+0x0/0xf8) [<c00ab3ac>] (do_sync_read+0x0/0xec) [<c00abfbc>] (vfs_read+0x0/0x164) [<c00ac1a0>] (sys_read+0x0/0x70) [<c0029100>] (ret_fast_syscall+0x0/0x30) Complete log at http://pastebin.mozilla.org/728028 Best Regards Abraham Arce -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
