This bug dump has happened to me for the last 4 or 5 kernels I've built
and installed, 2.6.19.x, 2.6.20 and 2.6.20.2. It happens on all of them
and it's very random. I'm almost wondering if it's a memory issue.
Please CC me as I'm not subscribed to the list.
System specs:
4 GB memory (PAE enabled)
SATA hard (AHCI)
P5B asus mobo
Core 2 duo cpu.
Nvidia video
BUG: unable to handle kernel NULL pointer dereference at virtual address
00000000
printing eip:
c0195fa0
*pde = 1b866001
*pte = 00000000
Oops: 0002 [#1]
PREEMPT SMP
Modules linked in: snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq
snd_seq_device snd_pcm_oss snd_mixer_oss ipv6 ext3 jbd capability
commoncap lp psmouse ohci1394 ieee1394 nvidia(P) i2c_i801 snd_hda_intel
snd_hda_codec sg parport_pc agpgart snd_pcm parport ehci_hcd r8169
i2c_core pcspkr evdev uhci_hcd serio_raw snd_timer snd soundcore
snd_page_alloc
CPU: 0
EIP: 0060:[<c0195fa0>] Tainted: P VLI
EFLAGS: 00010287 (2.6.20.2 #1)
EIP is at create_empty_buffers+0x20/0xa0
eax: 00000000 ebx: c12f3c00 ecx: 00000001 edx: 00000000
esi: 00000000 edi: 00000000 ebp: c42c30f8 esp: d4bc7ca4
ds: 007b es: 007b ss: 0068
Process hald-probe-volu (pid: 26850, ti=d4bc6000 task=ec281030
task.ti=d4bc6000)
Stack: c12f3c00 00000001 c42c31ac c0196b64 00000001 00000002 c4231e00
00000000
00000001 00000000 d4bc7ccc 00000001 c036ff2a 00004000 00000002
00000020
00000000 c01dbfc6 00000001 c01999f0 c12f3c00 00000008 c42c31b0
00000000
Call Trace:
[<c0196b64>] block_read_full_page+0x284/0x340
[<c036ff2a>] wait_for_completion+0xba/0xd0
[<c01dbfc6>] radix_tree_node_alloc+0x16/0x60
[<c01999f0>] blkdev_get_block+0x0/0x80
[<c015241d>] add_to_page_cache+0x8d/0xb0
[<c0159150>] read_pages+0x80/0x100
[<c0157054>] __alloc_pages+0x54/0x2f0
[<c0159326>] __do_page_cache_readahead+0x156/0x160
[<c015947d>] blockable_page_cache_readahead+0x4d/0xd0
[<c0159753>] page_cache_readahead+0x183/0x1c0
[<c0153012>] do_generic_mapping_read+0x482/0x540
[<c0153354>] generic_file_aio_read+0x194/0x1f0
[<c01530d0>] file_read_actor+0x0/0xf0
[<c017305d>] do_sync_read+0xbd/0x110
[<c01d1310>] blkdev_driver_ioctl+0x50/0x90
[<c013dde0>] autoremove_wake_function+0x0/0x50
[<c019ad08>] block_ioctl+0x18/0x20
[<c0199ce0>] block_llseek+0xe0/0x120
[<c0173240>] vfs_read+0x190/0x1a0
[<c0173541>] sys_read+0x41/0x70
[<c01032d8>] syscall_call+0x7/0xb
=======================
Code: b6 00 00 00 00 8d bf 00 00 00 00 57 56 89 ce b9 01 00 00 00 53 89 c3
e8 4f f6 ff ff 89 c7 89 c2 8d 74 26 00 8d bc 27 00 00 00 00 <09> 32 89 d0
8b 52 04 85 d2 75 f5 89 78 04 8b 43 10 83 c0 4c e8
EIP: [<c0195fa0>] create_empty_buffers+0x20/0xa0 SS:ESP 0068:d4bc7ca4
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