#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]):
compiled two exactly same kernels, one with SLAB and the other one with
SLUB used- with SLAB allocator, all is ok, no oops on wlanconfig destroy -
the panic i posted above, or ifconfig down - trace from it follows :
{{{
[ 164.951756] BUG: unable to handle kernel NULL pointer dereference at
virtual address 000000bb
[ 164.960494] printing eip:
[ 164.963299] *pde = 00000000
[ 164.966193] Oops: 0000 [#1]
[ 164.969081] Modules linked in: wlan_scan_sta wlan_scan_ap nfsd exportfs
ipv6 ohci_hcd rtc_cmos rtc_core rtc_lib usbvision videodev v4l2_common
v4l1_compat uhci_hcd ehci_hcd usbcore iTCO_wdt i2c_i801 e1000 shpchp
pci_hotplug ath_rate_sample ath_pci ath_hal(P) wlan_acl wlan sky2 3c59x
skge eeprom w83781d hwmon_vid i2c_amd756 i2c_core ide_scsi
[ 165.001353] CPU: 0
[ 165.001354] EIP: 0060:[<f8bbfd78>] Tainted: P VLI
[ 165.001355] EFLAGS: 00010286 (2.6.22.10-ng-ring3-s2s-sqsh-l7-swan-
imq-esfq-dnd #9)
[ 165.017464] EIP is at ath_tx_draintxq+0xa8/0x1d0 [ath_pci]
[ 165.023043] eax: 00000000 ebx: f1ffa000 ecx: f6904600 edx:
00000000
[ 165.029917] esi: 00000000 edi: f50e05dc ebp: f4a63820 esp:
f1f29dfc
[ 165.036789] ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
[ 165.042714] Process ifconfig (pid: 8654, ti=f1f28000 task=f7c6a000
task.ti=f1f28000)
[ 165.050372] Stack: 00000282 f50b8000 f4a623a0 f4a63910 00000282
f50b8000 00000008 00000000
[ 165.059320] f50b8000 f4a623a0 f4a63820 00000003 f4a623a0
00000001 f8bbffe9 f50b8000
[ 165.069857] 00000009 00000009 00000246 f4a623a0 f50b8000
f4a62000 f8bb55a8 f50b8000
[ 165.078808] Call Trace:
[ 165.081640] [<f8bbffe9>] ath_draintxq+0x79/0x150 [ath_pci]
[ 165.087361] [<f8bb55a8>] ath_stop_locked+0x58/0x1f0 [ath_pci]
[ 165.093342] [<c012ccb0>] wakeme_after_rcu+0x0/0x10
[ 165.098361] [<f8bb577a>] ath_stop+0x3a/0xb0 [ath_pci]
[ 165.103650] [<c030079c>] dev_close+0x5c/0x80
[ 165.108151] [<f8b6e241>] ieee80211_stop+0xd1/0x100 [wlan]
[ 165.113798] [<c030079c>] dev_close+0x5c/0x80
[ 165.118295] [<c030257c>] dev_change_flags+0x4c/0x130
[ 165.123492] [<c03475d9>] devinet_ioctl+0x239/0x550
[ 165.128516] [<c03497ce>] inet_ioctl+0x5e/0x90
[ 165.133100] [<c02f64c4>] sock_ioctl+0xa4/0x200
[ 165.137776] [<c02f6420>] sock_ioctl+0x0/0x200
[ 165.142363] [<c016eb74>] do_ioctl+0x54/0x70
[ 165.146778] [<c016ecbe>] vfs_ioctl+0x5e/0x1b0
[ 165.151365] [<c016ee6b>] sys_ioctl+0x5b/0x90
[ 165.155866] [<c0104012>] syscall_call+0x7/0xb
[ 165.160457] =======================
[ 165.164125] Code: 00 00 00 00 85 f6 74 1a 8d 74 26 00 8d bc 27 00 00 00
00 8b 1e 89 f0 89 de e8 25 0d 74 c7 85 db 75 f1 8b 5f 44 85 db 74 1c 8b 03
<f6> 80 bb 00 00 00 01 75 59 ff 4b 1c 0f 94 c0 84 c0 75 46 c7 47
[ 165.186527] EIP: [<f8bbfd78>] ath_tx_draintxq+0xa8/0x1d0 [ath_pci]
SS:ESP 0068:f1f29dfc
}}}
--
Ticket URL: <http://madwifi.org/ticket/1621#comment:8>
madwifi.org <http://madwifi.org/>
Multiband Atheros Driver for Wireless Fidelity
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