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From: Alexander Gran <alex@zodiac.dnsalias.org>
To: linux-kernel@vger.kernel.org
Subject: reiser4 oops while mounting
Date: Mon, 12 Sep 2005 16:31:08 +0200
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Hi,

I just tried to mount my external usb hdd (encrpyted).
  Vendor: USB 2.0   Model: Storage Device    Rev: 0100
  Type:   Direct-Access                      ANSI SCSI revision: 00
SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB)
sda: assuming drive cache: write through
SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB)
sda: assuming drive cache: write through
 sda: sda1 sda2
Attached scsi disk sda at scsi4, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi4, channel 0, id 0, lun 0,  type 0
usb-storage: device scan complete
attempt to access beyond end of device
dm-0: rw=3D0, want=3D58662920, limit=3D58588992
Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
c018b7e4
*pde =3D 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in: aes_i586 cfq_iosched irtty_sir sir_dev ath_rate_sample w=
lan=20
ath_hal ehci_hcd uhci_hcd
CPU:    0
EIP:    0060:[<c018b7e4>]    Tainted: P      VLI
EFLAGS: 00010206   (2.6.13-rc2-mm1)
EIP is at znodes_tree_done+0x16/0x26d
eax: f429f014   ebx: 00000000   ecx: 00002000   edx: c057cf88
esi: 00000000   edi: f429f038   ebp: f429f014   esp: f766ddc4
ds: 007b   es: 007b   ss: 0068
Process mount (pid: 4670, threadinfo=3Df766c000 task=3Df3d4d020)
Stack: c03fe7b5 00000001 00000000 f429f000 f429f014 f7461a00 c019283b f429f=
000
       f7461a00 f429f000 0000000c c01a8760 c04794d8 00000000 c01a8948 00000=
00c
       fffffffb 00000000 00000000 c01a89a6 00000000 f7461a00 4b1b5d0b 00000=
000
Call Trace:
 [<c03fe7b5>] wait_for_completion+0x86/0xfa
 [<c019283b>] done_tree+0x48/0x9d
 [<c01a8760>] _done_formatted_fake+0x17/0x25
 [<c01a8948>] done_super+0x1b/0x2a
 [<c01a89a6>] reiser4_fill_super+0x4f/0x69
 [<c0159d6d>] get_sb_bdev+0xcd/0x10a
 [<c016dacc>] alloc_vfsmnt+0x7c/0xa3
 [<c01a46ee>] reiser4_get_sb+0x18/0x1d
 [<c01a8957>] reiser4_fill_super+0x0/0x69
 [<c0159f10>] do_kern_mount+0x38/0xac
 [<c016ea95>] do_new_mount+0x73/0x96
 [<c016f12d>] do_mount+0x129/0x165
 [<c016efbb>] copy_mount_options+0x4d/0x96
 [<c016f586>] sys_mount+0x77/0xb3
 [<c0102e0b>] sysenter_past_esp+0x54/0x75
Code: 31 c0 f3 ab 5b 5e 5f 5d c3 89 c2 a1 e8 8e 58 c0 e9 c4 30 fb ff 55 57 =
56=20
53 83 ec 08 89 c5 8d 78 24 8b 4f 04 85 c9 74 5b 8b 70 24 <8b> 16 31 c0 85 d=
2=20
0f 84 d3 00 00 00 8b 5a 1c 85 db 0f 84 cd 01

Any new mount command hangs...

I'm currently not subscribed to lkml, as I'll be on holiday in a few hours,=
 so=20
pleas cc me.
kernel is 2.6.13-rc2-mm1
Problem does not seem to be reproducable.

regards
Alex

=2D-=20
Encrypted Mails welcome.
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