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[Linux-cluster] Strange bug



This happens when i trying to mount gfs

BUG: unable to handle kernel NULL pointer dereference at virtual address 00000018
printing eip:
c0170dcd
*pde = 00000000
Oops: 0000 [#1]
SMP
Modules linked in: thermal fan button processor ac battery crc32c libcrc32c iscsi_tcp libiscsi scsi_transport_iscsi ipv6 dm_snapshot dm_mirror lock_dlm dlm gfs lock_harness cman dm_mod loop ide_cd cdrom sd_mod generic mptspi mptscsih mptbase scsi_transport_spi evdev psmouse piix scsi_mod ehci_hcd parport_pc parport i2c_i801 i2c_core serio_raw ide_core floppy pcspkr e752x_edac edac_mc uhci_hcd shpchp pci_hotplug
CPU:    0
EIP:    0060:[<c0170dcd>]    Tainted: GF     VLI
EFLAGS: 00010293   (2.6.18 #1)
EIP is at do_add_mount+0x64/0xfb
eax: 0000000c   ebx: f69c6400   ecx: 00000003   edx: f7c0a9c0
esi: f0a77f30   edi: f3380003   ebp: 00000000   esp: f0a77e10
ds: 007b   es: 007b   ss: 0068
Process mount (pid: 3245, ti=f0a76000 task=f6010000 task.ti=f0a76000)
Stack: 00000003 f0dcf000 00000003 f3380003 00000000 c01719c0 00000000 f69c6400
      f3380000 f06d5000 00000000 00000000 c17061a0 04ff7e17 00000009 f0857006
      f7c0a4c0 fffffffe f7c0a4c0 c0170c3e fffffffe f0a77f0c c0166ec1 f0857000
Call Trace:
[<c01719c0>] do_mount+0x5f8/0x648
[<c0170c3e>] mntput_no_expire+0x11/0x6a
[<c0166ec1>] link_path_walk+0xb3/0xbd
[<c0193fb7>] nfs_clear_inode+0x31/0x54
[<c016758b>] do_unlinkat+0xba/0x113
[<c0167220>] do_path_lookup+0x20a/0x225
[<c013009c>] hrtimer_run_queues+0xcf/0x157
[<c014541f>] get_page_from_freelist+0x9b/0x368
[<c0121514>] __do_softirq+0x5a/0xbb
[<c0145986>] __get_free_pages+0x25/0x3e
[<c01708a6>] copy_mount_options+0x26/0x109
[<c0171a7d>] sys_mount+0x6d/0xaa
[<c0102c0d>] sysenter_past_esp+0x56/0x79
Code: e0 ff ff 8b 00 8b 80 58 04 00 00 39 42 64 75 76 8b 43 14 39 42 14 75 10 8b 06 bf f0 ff ff ff 39 42 10 0f 84 86 00 00 00 8b 43 10 <8b> 40 0c 0f b7 40 28 25 00 f0 00 00 3d 00 a0 00 00 74 6b 8b 04
EIP: [<c0170dcd>] do_add_mount+0x64/0xfb SS:ESP 0068:f0a77e10



--
Pavel D.Kuzin
System Administrator
Nodex  ISP
St. Petersburg, Russia
pk nodex ru
http://nodex.ru



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