So, if you’re using Debian 4, be careful to make sure your iSCSI Initiator settings are right, because if your auth settings are wrong, you will have a big box of fail.

Debian GNU/Linux 4.0 web6 ttyS1

web6 login: scsi2 : iSCSI Initiator over TCP/IP
BUG: unable to handle kernel paging request at virtual address 00100104
 printing eip:
f8b916f4
*pde = 00000000
Oops: 0002 [#1]
SMP 
Modules linked in: ib_iser rdma_cm ib_addr ib_cm ib_sa ib_mad ib_core iscsi_tcplibiscsi scsi_transport_iscsi binfmt_misc button ac battery ipv6 autofs4 dummy nfs lockd nfs_acl sunrpc 8021q dm_snapshot dm_mirror dm_mod loop serio_raw shpchp e7xxx_edac psmouse i2c_i801 i2c_core rtc pci_hotplug evdev edac_mc pcspkr ext3 jbd mbcache ide_disk generic qla2xxx e100 piix mii firmware_class scsi_transport_fc uhci_hcd e1000 scsi_mod ide_core usbcore thermal processor fan
CPU:    1
EIP:    0060:[<f8b916f4>]    Not tainted VLI
EFLAGS: 00210282   (2.6.18-6-686 #1) 
EIP is at __iscsi_complete_pdu+0x2db/0x3a2 [libiscsi]
eax: f29fd694   ebx: f1c8717c   ecx: 00100100   edx: 00200200
esi: 00000023   edi: f18e1edc   ebp: f16ba8c0   esp: f1ad38a8
ds: 007b   es: 007b   ss: 0068
Process php (pid: 21799, ti=f1ad2000 task=f28ab550 task.ti=f1ad2000)
Stack: f227e000 f1c8717c 00000000 dfc9b000 f29fd680 f1c8717c f227e000 f16ba8c8 
       f16ba8c0 f8b91948 00000179 f16ba8c0 00000179 00000023 f8b998cf 00000179 
       f528bc80 f1ad398c dff84520 f2918680 00000000 f1c8717c f16ba8c0 f4583ea4 
Call Trace:
 [<f8b91948>] iscsi_complete_pdu+0x23/0x30 [libiscsi]
 [<f8b998cf>] iscsi_tcp_data_recv+0x112b/0x1164 [iscsi_tcp]
 [<c024792c>] ip_output+0x1d1/0x1fd
 [<c024719a>] ip_queue_xmit+0x371/0x3b3
 [<c025dbaa>] udp_push_pending_frames+0x1e3/0x204
 [<f88b298f>] e1000_xmit_frame+0x928/0x958 [e1000]
 [<c022259f>] release_sock+0xc/0x91
 [<c0259643>] tcp_v4_send_check+0x72/0xb8
 [<c024cb84>] tcp_read_sock+0x5e/0x163
 [<f8b987a4>] iscsi_tcp_data_recv+0x0/0x1164 [iscsi_tcp]
 [<f8b99d10>] iscsi_tcp_data_ready+0x32/0x3f [iscsi_tcp]
 [<c0253c14>] tcp_rcv_established+0x523/0x7b7
 [<c0258d88>] tcp_v4_do_rcv+0x25/0x2b4
 [<f8ab0ced>] vlan_dev_hwaccel_hard_start_xmit+0x5f/0x66 [8021q]
 [<c0229876>] dev_hard_start_xmit+0x19a/0x1f0
 [<c025b1b5>] tcp_v4_rcv+0x8d2/0x925
 [<c024792c>] ip_output+0x1d1/0x1fd
 [<c02431f0>] ip_local_deliver+0x15b/0x207
 [<c024305b>] ip_rcv+0x3e3/0x41d
 [<c02294ac>] netif_receive_skb+0x2c5/0x33d
 [<f88b3ac0>] e1000_clean_rx_irq+0x3fb/0x4a8 [e1000]
 [<f88b2bd9>] e1000_clean+0x69/0x123 [e1000]
 [<c022ae6f>] net_rx_action+0x92/0x17f
 [<c01217b0>] __do_softirq+0x5a/0xbb
 [<c0121847>] do_softirq+0x36/0x3a
 [<c01050ea>] do_IRQ+0x48/0x52
 [<c01036b6>] common_interrupt+0x1a/0x20
 [<c025e26c>] udp_sendmsg+0x1cf/0x4c9
 [<c01457a5>] __alloc_pages+0x4e/0x275
 [<c01176e6>] try_to_wake_up+0x355/0x35f
 [<c0157291>] cache_alloc_refill+0x60/0x44e
 [<c0263843>] inet_sendmsg+0x35/0x3f
 [<c0220437>] sock_sendmsg+0xce/0xe8
 [<c01161c5>] __wake_up_common+0x2f/0x53
 [<c012d8b1>] autoremove_wake_function+0x0/0x2d
 [<c0223b0a>] sock_def_readable+0x31/0x5b
 [<c016dcc0>] dput+0x1a/0x11b
 [<f8b5532b>] nfs_lookup_revalidate+0x24a/0x3ba [nfs]
 [<f8b916d7>] __iscsi_complete_pdu+0x2be/0x3a2 [libiscsi]
 [<f8b91948>] iscsi_complete_pdu+0x23/0x30 [libiscsi]
 [<f8b99068>] iscsi_tcp_data_recv+0x8c4/0x1164 [iscsi_tcp]
 [<c0221dd2>] kernel_sendmsg+0x27/0x35
 [<f8af8f89>] xs_udp_send_request+0xe1/0x2a2 [sunrpc]
 [<c024792c>] ip_output+0x1d1/0x1fd
 [<f8af6fa6>] xprt_transmit+0xca/0x1a9 [sunrpc]
 [<f8b6367b>] nfs3_xdr_fhandle+0x0/0x21 [nfs]
 [<f8af537e>] call_transmit+0x19b/0x1c8 [sunrpc]
 [<f8af9e3b>] __rpc_execute+0x7a/0x198 [sunrpc]
 [<f8af54d2>] rpc_call_sync+0x6b/0x91 [sunrpc]
 [<f8b61173>] nfs3_rpc_wrapper+0x1f/0x5b [nfs]
 [<f8b61448>] nfs3_proc_getattr+0x51/0x72 [nfs]
 [<f8b58611>] __nfs_revalidate_inode+0x127/0x24d [nfs]
 [<f8b5ed57>] nfs_wait_on_requests_locked+0x91/0xa5 [nfs]
 [<f88b1635>] e1000_clean_tx_irq+0x65/0x204 [e1000]
 [<f8b5fc47>] nfs_sync_inode_wait+0x68/0x1ab [nfs]
 [<f8b58fc0>] nfs_getattr+0x52/0x7d [nfs]
 [<f8b58f6e>] nfs_getattr+0x0/0x7d [nfs]
 [<c0161e05>] vfs_getattr+0x40/0x99
 [<c0161f1a>] vfs_stat_fd+0x2a/0x3c
 [<f88aff04>] e1000_unmap_and_free_tx_resource+0xe/0x19 [e1000]
 [<f88b1635>] e1000_clean_tx_irq+0x65/0x204 [e1000]
 [<f88b2bd9>] e1000_clean+0x69/0x123 [e1000]
 [<c0161fb9>] sys_stat64+0xf/0x23
 [<c022ae6f>] net_rx_action+0x92/0x17f
 [<c01217b0>] __do_softirq+0x5a/0xbb
 [<c01050ea>] do_IRQ+0x48/0x52
 [<c0102c7b>] syscall_call+0x7/0xb
Code: 5c 24 08 8b 4c 24 04 8b 03 e8 73 80 ff ff 5a 85 c0 b8 f3 03 00 00 0f 44 44 24 08 89 44 24 08 8b 44 24 10 83 c0 14 8b 08 8b 50 04 <89> 51 04 89 0a c7 40 04 00 02 20 00 c7 00 00 01 10 00 8b 43 2c 
EIP: [<f8b916f4>] __iscsi_complete_pdu+0x2db/0x3a2 [libiscsi] SS:ESP 0068:f1ad38a8
 <0>Kernel panic - not syncing: Fatal exception in interrupt