Unable to handle kernel NULL pointer dereference at virtual address 00000004 printing eip: 42839407 *pde = 00003001 Oops: 0002 [#1] SMP Modules linked in: md5 ipv6 autofs4 e100 mii ipt_REJECT iptable_filter ip_tables floppy sg scsi_mod microcode dm_mod ohci_hcd ext3 jbd raid1 raid0 CPU: 1 EIP: 0060:[<42839407>] Not tainted EFLAGS: 00010202 (2.6.8-1.521smp) EIP is at journal_commit_transaction+0x70c/0x13f7 [jbd] eax: 0fba338c ebx: 00000000 ecx: 0b8744c0 edx: 00000000 esi: 0fba338c edi: 41fc2200 ebp: 3dc09e60 esp: 3fd40da0 ds: 007b es: 007b ss: 0068 Process kjournald (pid: 910, threadinfo=3fd40000 task=3fe4b850) Stack: 00000000 00000000 00000000 00000000 00000000 1a6bd53c 41fc2200 1197029c 00001cc5 00000001 3fd40e14 0211c589 000005de ffffffff 00000001 00000080 00000300 00000300 00000300 00000000 0240d02c 00000000 00000000 3fe4b850 Call Trace: [<0211c589>] find_busiest_group+0xe6/0x2b7 [<0211ebdc>] autoremove_wake_function+0x0/0x2d [<0211c589>] find_busiest_group+0xe6/0x2b7 [<0211ebdc>] autoremove_wake_function+0x0/0x2d [<022d661a>] schedule+0x65e/0x6e9 [<02128521>] del_timer_sync+0x6f/0x87 [<4283c18f>] kjournald+0x10d/0x326 [jbd] [<0211ebdc>] autoremove_wake_function+0x0/0x2d [<0211ebdc>] autoremove_wake_function+0x0/0x2d [<4283c07c>] commit_timeout+0x0/0x5 [jbd] [<4283c082>] kjournald+0x0/0x326 [jbd] [<021041f1>] kernel_thread_helper+0x5/0xb Code: f0 ff 43 04 8b 03 a8 04 0f 84 b1 00 00 00 8b 4c 24 18 b2 01