kernel tainted after fresh install; Fedora contains such modules?

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After fresh Fedora install (from Fedora repo only) I found in 
"/var/log/messages" records as:

Oct  1 07:08:26 ns kernel: ------------[ cut here ]------------
Oct  1 07:08:26 ns kernel: WARNING: at lib/dma-debug.c:791 
check_unmap+0x7a/0x59b()
Oct  1 07:08:26 ns kernel: Hardware name: EP45-DQ6
Oct  1 07:08:26 ns kernel: dl2k 0000:09:00.0: DMA-API: device driver 
tries to free an invalid DMA memory address
Oct  1 07:08:26 ns kernel: Modules linked in: bluetooth rfkill 
nf_nat_ftp nf_conntrack_ftp iptable_nat nf_nat xt_u32 ipt_LOG xt_limit 
uinput iTCO_wdt i2c_i801 iTCO_vendor_support r8169 mii i2c_core dl2k 
microcode raid1 [last unloaded: hwmon_vid]
Oct  1 07:08:26 ns kernel: Pid: 2454, comm: ip Tainted: G        W 
2.6.35.4-28.fc14.i686.PAE #1
Oct  1 07:08:26 ns kernel: Call Trace:
Oct  1 07:08:26 ns kernel: [<c0441f39>] warn_slowpath_common+0x6a/0x7f
Oct  1 07:08:26 ns kernel: [<c05dfbc6>] ? check_unmap+0x7a/0x59b
Oct  1 07:08:26 ns kernel: [<c0441fc1>] warn_slowpath_fmt+0x2b/0x2f
Oct  1 07:08:26 ns kernel: [<c05dfbc6>] check_unmap+0x7a/0x59b
Oct  1 07:08:26 ns kernel: [<c0467ae1>] ? 
print_lock_contention_bug+0x11/0xa8
Oct  1 07:08:26 ns kernel: [<c0467dad>] ? lock_acquired+0x235/0x23d
Oct  1 07:08:26 ns kernel: [<c05daf43>] ? debug_object_deactivate+0x28/0x92
Oct  1 07:08:26 ns kernel: [<c05e0195>] debug_dma_unmap_page+0x5a/0x62
Oct  1 07:08:26 ns kernel: [<f7e6b2d5>] pci_unmap_single+0x58/0x63 [dl2k]
Oct  1 07:08:26 ns kernel: [<f7e6cd5c>] rio_close+0x9e/0x114 [dl2k]
Oct  1 07:08:26 ns kernel: [<c075058a>] __dev_close+0x70/0x85
Oct  1 07:08:26 ns kernel: [<c07519d9>] __dev_change_flags+0x98/0x10d
Oct  1 07:08:26 ns kernel: [<c0751abe>] dev_change_flags+0x18/0x44
Oct  1 07:08:26 ns kernel: [<c075a44f>] do_setlink+0x253/0x52e
Oct  1 07:08:26 ns kernel: [<c0467ae1>] ? 
print_lock_contention_bug+0x11/0xa8
Oct  1 07:08:26 ns kernel: [<c0467dad>] ? lock_acquired+0x235/0x23d
Oct  1 07:08:26 ns kernel: [<c04d0bf9>] ? handle_mm_fault+0x342/0x8f4
Oct  1 07:08:26 ns kernel: [<c075af7a>] rtnl_newlink+0x218/0x3a6
Oct  1 07:08:26 ns kernel: [<c075ae18>] ? rtnl_newlink+0xb6/0x3a6
Oct  1 07:08:26 ns kernel: [<c0467dad>] ? lock_acquired+0x235/0x23d
Oct  1 07:08:26 ns kernel: [<c075a0f0>] ? rtnl_lock+0x14/0x16
Oct  1 07:08:26 ns kernel: [<c075a0f0>] ? rtnl_lock+0x14/0x16
Oct  1 07:08:26 ns kernel: [<c07e3e85>] ? __mutex_lock_common+0x2d0/0x2da
Oct  1 07:08:26 ns kernel: [<c0467dad>] ? lock_acquired+0x235/0x23d
Oct  1 07:08:26 ns kernel: [<c075ad62>] ? rtnl_newlink+0x0/0x3a6
Oct  1 07:08:26 ns kernel: [<c075abb7>] rtnetlink_rcv_msg+0x19c/0x1ab
Oct  1 07:08:26 ns kernel: [<c075aa1b>] ? rtnetlink_rcv_msg+0x0/0x1ab
Oct  1 07:08:26 ns kernel: [<c076a19a>] netlink_rcv_skb+0x37/0x78
Oct  1 07:08:26 ns kernel: [<c075a112>] rtnetlink_rcv+0x20/0x27
Oct  1 07:08:26 ns kernel: [<c0769d7b>] netlink_unicast+0xc6/0x121
Oct  1 07:08:26 ns kernel: [<c076a004>] netlink_sendmsg+0x22e/0x23b
Oct  1 07:08:26 ns kernel: [<c0740d65>] __sock_sendmsg+0x56/0x5f
Oct  1 07:08:26 ns kernel: [<c0741056>] sock_sendmsg+0x98/0xac
Oct  1 07:08:26 ns kernel: [<c04ce553>] ? might_fault+0x4c/0x86
Oct  1 07:08:26 ns kernel: [<c0469b00>] ? lock_release+0x17f/0x186
Oct  1 07:08:26 ns kernel: [<c07497a1>] ? copy_from_user+0xd/0xf
Oct  1 07:08:26 ns kernel: [<c0749ad7>] ? verify_iovec+0x43/0x70
Oct  1 07:08:26 ns kernel: [<c0742b45>] sys_sendmsg+0x182/0x1e6
Oct  1 07:08:26 ns kernel: [<c0467ae1>] ? 
print_lock_contention_bug+0x11/0xa8
Oct  1 07:08:26 ns kernel: [<c0467dad>] ? lock_acquired+0x235/0x23d
Oct  1 07:08:26 ns kernel: [<c04cec8e>] ? __do_fault+0x206/0x396
Oct  1 07:08:26 ns kernel: [<c04cedf2>] ? __do_fault+0x36a/0x396
Oct  1 07:08:26 ns kernel: [<c0469bb8>] ? lock_acquire+0xb1/0xbc
Oct  1 07:08:26 ns kernel: [<c04ce553>] ? might_fault+0x4c/0x86
Oct  1 07:08:26 ns kernel: [<c0469b00>] ? lock_release+0x17f/0x186
Oct  1 07:08:26 ns kernel: [<c0742f43>] sys_socketcall+0x168/0x1a8
Oct  1 07:08:26 ns kernel: [<c05d5d74>] ? trace_hardirqs_on_thunk+0xc/0x10
Oct  1 07:08:26 ns kernel: [<c04089df>] sysenter_do_call+0x12/0x38
Oct  1 07:08:26 ns kernel: ---[ end trace a70d91368aa35943 ]---

Oops itself is probably suited for bug report, but what isn't clear for 
me is line
Oct  1 07:08:26 ns kernel: Pid: 2454, comm: ip Tainted: G        W 
2.6.35.4-28.fc14.i686.PAE #1

Which module caused that kernel is tainted? I suppose Fedora contains 
only open SW including kernel modules, isn't then there something wrong?

Thanks, Franta Hanzlík
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