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SubjectOops while reading /proc/ioports or /proc/iomem

a friend of mine got the following oops during installation... Seems like
something tampered with resource lists while we were reading them.


----- Forwarded message from Lubos Lunak <> -----

From: Lubos Lunak <>
Subject: 11.0a3 crash

eth0: no IPv6 routers present
BUG: unable to handle kernel paging request at f938ddbc
IP: [<c01e0d58>] strnlen+0x9/0x19
*pde = 36b24067 *pte = 00000000
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/platform/pcspkr/modalias
Modules linked in: parport_pc parport squashfs ipv6 e1000e usb_storage uhci_hcd usbhid hid ff_memless ehci_hcd usbcore ata_piix pata_acpi libata arc4 ecb crypto_blkcipher loop nfs nfs_acl lockd sunrpc nls_iso8859_1 nls_cp437 af_packet nvram edd sg st sd_mod sr_mod scsi_mod ide_disk ide_cd_mod cdrom ide_core [last unloaded: parport]

Pid: 3350, comm: y2base Tainted: G N (2.6.25-rc5-git3-6-default #1)
EIP: 0060:[<c01e0d58>] EFLAGS: 00010297 CPU: 0
EIP is at strnlen+0x9/0x19
EAX: f938ddbc EBX: f7d6c02e ECX: f938ddbc EDX: fffffffe
ESI: f7c15efc EDI: f938ddbc EBP: f7c15e84 ESP: f7c15e84
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process y2base (pid: 3350, ti=f7c14000 task=f7ccc020 task.ti=f7c14000)
Stack: f7c15eb8 c01e03e7 c0379605 00000fde f7d6c022 00000010 f7d6d000 00000000
ffffffff ffffffff f7d6c022 f7a94e00 f7a94e00 f7c15ecc c018dab5 f7c15edc
00000000 f7a4bde0 f7c15f0c c0129a49 f7a94e00 c03795f1 00000000 c037f049
Call Trace:
[<c01e03e7>] vsnprintf+0x286/0x41f
[<c018dab5>] seq_printf+0x25/0x45
[<c0129a49>] r_show+0x5d/0x67
[<c018df1d>] seq_read+0x195/0x25f
[<c01a666f>] proc_reg_read+0x5a/0x6e
[<c0177d8f>] vfs_read+0x89/0x133
[<c0177ed2>] sys_read+0x3b/0x60
[<c0105b62>] syscall_call+0x7/0xb
[<b7a8a771>] 0xb7a8a771
Code: 05 bf 01 00 00 00 4f 89 f8 5f 5d c3 55 85 c9 89 e5 57 89 c7 89 d0 74 05 f2 ae 75 01 4f 89 f8 5f 5d c3 55 89 c1 89 e5 89 c8 eb 06 <80> 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 5d c3 55 89 e5 57 56
EIP: [<c01e0d58>] strnlen+0x9/0x19 SS:ESP 0068:f7c15e84
---[ end trace ae86811bcda28245 ]---
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.

----- End forwarded message -----
Jan Kara <>

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