#673: madwifi-ng triggers lockdep
-----------------------------------+----------------------------------------
Reporter: [EMAIL PROTECTED] | Owner:
Type: defect | Status: new
Priority: major | Milestone:
Component: madwifi: other | Version:
Keywords: | Patch_attached: 0
-----------------------------------+----------------------------------------
Hello,
sometimes when I try to unload the iptables modules (like on
shutdown/reboot), my computer will hang (with nothing in the logs). I
decided to check out Ingo Molinar's new lockdep patchset. I'm running 2.6
.17-rc6-mm1, and after
{{{
modprobe ath_pci autocreate=none
wlanconfig ath0 create wlandev wifi0 wlanmode sta
iwconfig ath0 essid default nick none
ifconfig ath0 192.168.0.90
wlanconfig ath0 list ap
}}}
I get the following in the logs:
{{{
Jun 8 13:28:01 tobsbox kernel: ============================
Jun 8 13:28:01 tobsbox kernel: [ BUG: illegal lock usage! ]
Jun 8 13:28:01 tobsbox kernel: ----------------------------
Jun 8 13:28:01 tobsbox kernel: illegal {in-softirq-W} -> {softirq-on-W}
usage.
Jun 8 13:28:01 tobsbox kernel: wlanconfig/2380 [HC0[0]:SC0[0]:HE1:SE1]
takes:
Jun 8 13:28:01 tobsbox kernel: (&st->st_lock){-+..}, at: [<e0ab1256>]
sta_iterate+0x36/0x90 [wlan_scan_sta]
Jun 8 13:28:01 tobsbox kernel: {in-softirq-W} state was registered at:
Jun 8 13:28:01 tobsbox kernel: [<c0136afe>] lock_acquire+0x6e/0x90
Jun 8 13:28:01 tobsbox kernel: [<c032fc4b>] _spin_lock+0x2b/0x40
Jun 8 13:28:01 tobsbox kernel: [<e0ab2780>] sta_add+0x40/0x490
[wlan_scan_sta]
Jun 8 13:28:01 tobsbox kernel: [<e08e1c90>]
ieee80211_add_scan+0x60/0x220 [wlan]
Jun 8 13:28:01 tobsbox kernel: [<e08d61ff>]
ieee80211_recv_mgmt+0x2abf/0x4610 [wlan]
Jun 8 13:28:01 tobsbox kernel: [<e08b8a9e>] ath_recv_mgmt+0x3e/0x180
[ath_pci]
Jun 8 13:28:01 tobsbox kernel: [<e08d252c>]
ieee80211_input+0xa5c/0x1be0 [wlan]
Jun 8 13:28:01 tobsbox kernel: [<e08d36fc>]
ieee80211_input_all+0x4c/0x90 [wlan]
Jun 8 13:28:01 tobsbox kernel: [<e08bbb71>] ath_rx_tasklet+0x6d1/0x780
[ath_pci]
Jun 8 13:28:01 tobsbox kernel: [<c011fdf0>] tasklet_action+0x40/0x80
Jun 8 13:28:01 tobsbox kernel: [<c01201e2>] __do_softirq+0x52/0xb0
Jun 8 13:28:01 tobsbox kernel: [<c01053cc>] do_softirq+0x5c/0xe0
Jun 8 13:28:01 tobsbox kernel: irq event stamp: 1103
Jun 8 13:28:01 tobsbox kernel: hardirqs last enabled at (1103):
[<c032e521>] __mutex_lock_slowpath+0x161/0x2b0
Jun 8 13:28:01 tobsbox kernel: hardirqs last disabled at (1102):
[<c032e3ec>] __mutex_lock_slowpath+0x2c/0x2b0
Jun 8 13:28:01 tobsbox kernel: softirqs last enabled at (190):
[<c0120227>] __do_softirq+0x97/0xb0
Jun 8 13:28:01 tobsbox kernel: softirqs last disabled at (179):
[<c01053cc>] do_softirq+0x5c/0xe0
Jun 8 13:28:01 tobsbox kernel:
Jun 8 13:28:01 tobsbox kernel: other info that might help us debug this:
Jun 8 13:28:01 tobsbox kernel: 2 locks held by wlanconfig/2380:
Jun 8 13:28:01 tobsbox kernel: #0: (rtnl_mutex){--..}, at: [<c032e68c>]
mutex_lock+0x1c/0x20
Jun 8 13:28:01 tobsbox kernel: #1: (&st->st_scanlock){--..}, at:
[<e0ab1240>] sta_iterate+0x20/0x90 [wlan_scan_sta]
Jun 8 13:28:01 tobsbox kernel:
Jun 8 13:28:01 tobsbox kernel: stack backtrace:
Jun 8 13:28:01 tobsbox kernel: [<c0103c42>] show_trace+0x12/0x20
Jun 8 13:28:01 tobsbox kernel: [<c0104259>] dump_stack+0x19/0x20
Jun 8 13:28:01 tobsbox kernel: [<c013489e>] print_usage_bug+0x20e/0x220
Jun 8 13:28:01 tobsbox kernel: [<c013531e>] mark_lock+0x4ee/0x670
Jun 8 13:28:01 tobsbox kernel: [<c01362a8>] __lock_acquire+0x648/0xca0
Jun 8 13:28:01 tobsbox kernel: [<c0136afe>] lock_acquire+0x6e/0x90
Jun 8 13:28:01 tobsbox kernel: [<c032fc4b>] _spin_lock+0x2b/0x40
Jun 8 13:28:01 tobsbox kernel: [<e0ab1256>] sta_iterate+0x36/0x90
[wlan_scan_sta]
Jun 8 13:28:01 tobsbox kernel: [<e08e18d4>]
ieee80211_scan_iterate+0x14/0x20 [wlan]
Jun 8 13:28:01 tobsbox kernel: [<e08e517a>]
ieee80211_ioctl_getscanresults+0x4a/0xe0 [wlan]
Jun 8 13:28:01 tobsbox kernel: [<e08e63be>] ieee80211_ioctl+0x6e/0x560
[wlan]
Jun 8 13:28:01 tobsbox kernel: [<c02cc157>] dev_ifsioc+0x357/0x3c0
Jun 8 13:28:01 tobsbox kernel: [<c02cc6c8>] dev_ioctl+0x1d8/0x390
Jun 8 13:28:01 tobsbox kernel: [<c02c0ac9>] sock_ioctl+0xd9/0x220
Jun 8 13:28:02 tobsbox kernel: [<c01802a0>] do_ioctl+0x20/0x60
Jun 8 13:28:02 tobsbox kernel: [<c0180337>] vfs_ioctl+0x57/0x2b0
Jun 8 13:28:02 tobsbox kernel: [<c01805f3>] sys_ioctl+0x63/0x80
Jun 8 13:28:02 tobsbox kernel: [<c03301e5>] sysenter_past_esp+0x56/0x8d
}}}
I have no idea if this has something to do with my original problem but
thought you may be interested. I will keep running this kernel, let me
know if you would like me to post other such reports.
Tobias.
Oh, almost forgot. madwifi-ng is:
{{{
Jun 8 13:25:36 tobsbox kernel: wlan: 0.8.4.2 (svn r1634)
Jun 8 13:25:36 tobsbox kernel: ath_rate_sample: 1.2 (svn r1634)
Jun 8 13:25:36 tobsbox kernel: ath_pci: 0.9.4.5 (svn r1634)
Jun 8 13:25:36 tobsbox kernel: ACPI: PCI Interrupt Link [LNKB] enabled at
IRQ 10
Jun 8 13:25:36 tobsbox kernel: ACPI: PCI Interrupt 0000:00:0e.0[A] ->
Link [LNKB] -> GSI 10 (level, low) -> I
RQ 10
Jun 8 13:25:36 tobsbox kernel: wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps
11Mbps
Jun 8 13:25:36 tobsbox kernel: wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps
11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps
36Mbps 48Mbps 54Mbps
Jun 8 13:25:36 tobsbox kernel: wifi0: H/W encryption support: WEP AES
AES_CCM TKIP
Jun 8 13:25:36 tobsbox kernel: wifi0: mac 7.8 phy 4.5 radio 5.6
Jun 8 13:25:36 tobsbox kernel: wifi0: Use hw queue 1 for WME_AC_BE
traffic
Jun 8 13:25:36 tobsbox kernel: wifi0: Use hw queue 0 for WME_AC_BK
traffic
Jun 8 13:25:36 tobsbox kernel: wifi0: Use hw queue 2 for WME_AC_VI
traffic
Jun 8 13:25:36 tobsbox kernel: wifi0: Use hw queue 3 for WME_AC_VO
traffic
Jun 8 13:25:36 tobsbox kernel: wifi0: Use hw queue 8 for CAB traffic
Jun 8 13:25:36 tobsbox kernel: wifi0: Use hw queue 9 for beacons
Jun 8 13:25:36 tobsbox kernel: wifi0: Atheros 5212: mem=0xed800000,
irq=10
}}}
--
Ticket URL: <http://madwifi.org/ticket/673>
MadWifi <http://madwifi.org/>
Multiband Atheros Driver for Wireless Fidelity_______________________________________________
Madwifi-tickets mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/madwifi-tickets
