Posted by daniel_hozac on Sat 21st Oct 18:02
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- BUG: unable to handle kernel NULL pointer dereference at virtual address 00000194
- printing eip:
- c016c4dc
- *pde = 00000000
- Oops: 0000 [#1]
- PREEMPT SMP
- Modules linked in: vroot netconsole
- CPU: 0
- EIP: 0060:[<c016c4dc>] Not tainted VLI
- EFLAGS: 00010246 (2.6.18.1-vs2.0.2.2-rc3 #8)
- EIP is at bio_add_page+0x1a/0x38
- eax: 00000000 ebx: d54c4320 ecx: c13a92b8 edx: d54c4320
- esi: 00001000 edi: 00000000 ebp: 00000000 esp: d54d7b98
- ds: 007b es: 007b ss: 0068
- Process mount (pid: 2668[#0], ti=d54d6000 task=c177aaa0 task.ti=d54d6000)
- Stack: d54c4320 d554bde0 c0279cd9 d54c4320 c13a92b8 00001000 00000000 00000000
- 00000000 00000000 00000001 00004105 00000000 d554bde0 00000200 00000000
- 0000ffff 000002d0 00001000 d5b0eeec 00004105 d554bde0 00000200 d5ad0c00
- Call Trace:
- [<c0279cd9>] xfs_buf_iorequest+0x2f6/0x43b
- [<c027a0fb>] xfs_buf_iostart+0x8c/0x98
- [<c027a874>] xfs_buf_read_flags+0x81/0xa6
- [<c0264189>] xfs_readsb+0x4e/0x618
- [<c0279233>] xfs_alloc_buftarg+0x1bd/0x247
- [<c0276b5c>] kmem_alloc+0xc7/0x114
- [<c0121225>] irq_exit+0x43/0x45
- [<c026d522>] xfs_mount+0x543/0xaa7
- [<c014ec59>] truncate_inode_pages+0x2f/0x36
- [<c016e5e3>] set_blocksize+0x94/0x98
- [<c0281ae5>] xfs_fs_fill_super+0x91/0x227
- [<c029c4d2>] snprintf+0x2b/0x2f
- [<c01a5003>] disk_name+0xa9/0xb3
- [<c016e606>] sb_set_blocksize+0x1f/0x46
- [<c016e105>] get_sb_bdev+0x12e/0x166
- [<c0280be2>] xfs_fs_get_sb+0x37/0x3b
- [<c0281a54>] xfs_fs_fill_super+0x0/0x227
- [<c016db29>] vfs_kern_mount+0x4d/0xdf
- [<c016df81>] do_kern_mount+0x42/0x98
- [<c01844be>] do_mount+0x331/0x82d
- [<c0176fe0>] link_path_walk+0x73/0xe2
- [<c0469947>] _spin_unlock+0x15/0x2f
- [<c0153f08>] __handle_mm_fault+0x36f/0xe7f
- [<c0469947>] _spin_unlock+0x15/0x2f
- [<c01542e5>] __handle_mm_fault+0x74c/0xe7f
- [<c0469688>] _read_lock_irqsave+0x1c/0x76
- [<c0469a71>] _read_unlock_irq+0x16/0x30
- [<c01469a4>] find_get_page+0x40/0x4d
- [<c014b68a>] get_page_from_freelist+0x148/0x432
- [<c0103a29>] error_code+0x39/0x40
- [<c014be55>] __get_free_pages+0x1e/0x47
- [<c01833e2>] copy_mount_options+0x2c/0x112
- [<c0184a57>] sys_mount+0x9d/0xde
- [<c0102ef5>] sysenter_past_esp+0x56/0x79
- Code: 00 00 00 c7 47 08 00 00 00 00 31 c0 e9 b6 fe ff ff 56 53 8b 54 24 0c 8b 4c 24 10 8b 74 24 14 8b 42 0c 8b 80 90 00 00 00 8b 40 38 <0f> b7 98 94 01 00 00 89 5c 24 14 8b 5c 24 18 89 5c 24 10 89 74
- EIP: [<c016c4dc>] bio_add_page+0x1a/0x38 SS:ESP 0068:d54d7b98
- $ addr2line -e vmlinux c016c4dc c0279cd9 c027a0fb c027a874 c0264189 c0279233 c0276b5c c0121225 c026d522 c014ec59 c016e5e3 c0281ae5 c029c4d2 c01a5003 c016e606 c016e105 c0280be2 c0281a54 c016db29 c016df81 c01844be
- fs/bio.c:450
- include/asm/atomic.h:96
- fs/xfs/linux-2.6/xfs_buf.c:1066
- fs/xfs/linux-2.6/xfs_buf.c:656
- fs/xfs/xfs_mount.c:495
- fs/xfs/linux-2.6/xfs_buf.c:1405
- fs/xfs/linux-2.6/kmem.c:42
- kernel/softirq.c:295
- fs/xfs/xfs_vfsops.c:494
- mm/truncate.c:207
- fs/block_dev.c:78
- fs/xfs/linux-2.6/xfs_super.c:824
- lib/vsprintf.c:545
- fs/partitions/check.c:128
- fs/block_dev.c:87
- fs/super.c:727
- fs/xfs/linux-2.6/xfs_super.c:889
- fs/xfs/linux-2.6/xfs_super.c:804
- fs/super.c:846
- fs/super.c:893
- fs/namespace.c:1145
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