#1621: kernel oopses with wlanconfig ath0 destroy, almost always reproducable
when
wep is used and station is assosiated.
----------------------------------+-----------------------------------------
Reporter: anonymous | Owner: mtaylor
Type: defect | Status: assigned
Priority: blocker | Milestone:
Component: madwifi: driver | Version: trunk
Resolution: | Keywords: oops crash
Patch_attached: 0 |
----------------------------------+-----------------------------------------
Comment (by [EMAIL PROTECTED]):
reproduced here too, interesting is, that i has been only able to
reproduce it - yet - on non-SMP and SLUB kernel. I have tested two kernels
yet, one optimized for i486, SLUB, no-SMP, the second optimized for Core
Duo, SLAB, SMP enabled. Second one had no problem either on Core Duo HW
and on Sempron 64 box, the first one crashed on both on wlanconfig
destroy, also on ifconfig down and even randomly. Trace follows :
{{{
[ 113.140198] BUG: unable to handle kernel NULL pointer dereference at
virtual address 000000bb
[ 113.148920] printing eip:
[ 113.151711] *pde = 00000000
[ 113.154593] Oops: 0000 [#1]
[ 113.157472] Modules linked in: wlan_scan_sta wlan_scan_ap snd_pcm_oss
snd_mixer_oss nfsd exportfs ipv6 ohci_hcd rtc_cmos rtc_core rtc_lib
amd64_agp agpgart e1000 hostap_pci hostap ieee80211_crypt ath_rate_sample
ath_pci wlan ath_hal(P) ub shpchp pci_hotplug usb_storage uhci_hcd
ehci_hcd usbcore i2c_viapro snd_via82xx snd_ac97_codec ac97_bus snd_pcm
snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device snd
via_rhine k8temp eeprom w83781d hwmon_vid i2c_amd756 i2c_core ide_scsi
[ 113.203838] CPU: 0
[ 113.203839] EIP: 0060:[<e0c8e6eb>] Tainted: P VLI
[ 113.203840] EFLAGS: 00010286 (2.6.22.10-ng-ring3-s2s-sqsh-l7-swan-
imq-esfq-dnd-amd-28xx #13)
[ 113.220773] EIP is at ieee80211_node_vdetach+0x2b/0xd0 [wlan]
[ 113.226597] eax: 00000000 ebx: da75f000 ecx: dff2a3a0 edx:
00000082
[ 113.233459] esi: da4e43a0 edi: da4e4000 ebp: dff2a3a0 esp:
da0cfe84
[ 113.240321] ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
[ 113.246229] Process wlanconfig (pid: 9128, ti=da0ce000 task=da16a500
task.ti=da0ce000)
[ 113.254043] Stack: c13f7d80 00000287 c0471cb0 00000287 e0c95715
da4e43a0 dff2a3a0 da4e4000
[ 113.263038] da4e43a0 dff2a3a0 e0c83c6a 00000000 da4e43a0
00000001 e0cb8069 00000000
[ 113.272036] c0301116 da4e43a0 e0c971f1 dfe1c79c dffb8000
dff2a000 da0cff18 da4e43a0
[ 113.281035] Call Trace:
[ 113.283847] [<e0c95715>] ieee80211_power_vdetach+0x15/0x20 [wlan]
[ 113.290183] [<e0c83c6a>] ieee80211_vap_detach+0xba/0x100 [wlan]
[ 113.296340] [<e0cb8069>] ath_vap_delete+0xc9/0x350 [ath_pci]
[ 113.302230] [<c0301116>] dev_close+0x56/0x80
[ 113.306737] [<e0c971f1>] ieee80211_stop+0xd1/0x100 [wlan]
[ 113.312374] [<e0ca06d0>] ieee80211_ioctl+0x0/0x100 [wlan]
[ 113.318010] [<e0ca07a8>] ieee80211_ioctl+0xd8/0x100 [wlan]
[ 113.323739] [<c030342a>] dev_ifsioc+0x2fa/0x360
[ 113.328507] [<c030360e>] dev_ioctl+0x17e/0x200
[ 113.333186] [<c02f6ea9>] sock_ioctl+0xb9/0x200
[ 113.337857] [<c02f6df0>] sock_ioctl+0x0/0x200
[ 113.342442] [<c016ebf4>] do_ioctl+0x54/0x70
[ 113.346863] [<c02f74be>] sys_socket+0x2e/0x50
[ 113.351453] [<c016ed3e>] vfs_ioctl+0x5e/0x1c0
[ 113.356038] [<c016eefb>] sys_ioctl+0x5b/0x90
[ 113.360538] [<c0103fd6>] syscall_call+0x7/0xb
[ 113.365132] =======================
}}}
Also, it sometimes crashed in the way creator of this ticket posted, will
capture it later too.
--
Ticket URL: <http://madwifi.org/ticket/1621#comment:6>
madwifi.org <http://madwifi.org/>
Multiband Atheros Driver for Wireless Fidelity
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