On 11/29/2010 04:44 PM, Luis R. Rodriguez wrote:
On Mon, Nov 29, 2010 at 04:28:51PM -0800, Ben Greear wrote:
BUG: unable to handle kernel NULL pointer dereference at 00000040
IP: [<f933470a>] ath_tx_start+0x461/0x5ef [ath9k]
*pde = 00000000
Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:08:01.0/irq
Modules linked in: aes_i586 aes_generic fuse nfs lockd fscache nfs_acl auth_rpcgss sunrpc ipv6 uinput arc4 ecb ath9k mac80211 ath9k_common ath9k_hw mi]
Pid: 38, comm: kworker/u:1 Tainted: G W 2.6.37-rc3-wl+ #53 PDSBM/PDSBM
EIP: 0060:[<f933470a>] EFLAGS: 00010246 CPU: 1
EIP is at ath_tx_start+0x461/0x5ef [ath9k]
Please use
gdb drivers/net/wireless/ath/ath9k/
l *(ath_tx_start+0x461)
Luis
I managed to hit that ath_tx_start crash again, and this time there were no obvious
DMA or irq errors immediately preceding it. So, it might be a real bug
after all. I'll add some extra checks to see if tid->ac is NULL.
Thanks,
Ben
--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc http://www.candelatech.com
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