[ath9k-devel] 3.9.0+crash on unloading ath9k_htc driver.

[ath9k-devel] 3.9.0+crash on unloading ath9k_htc driver.

[Ben Greear]

I just added an ath9k_htc NIC to my system..and looks like removing the ath9k_htc
driver crashed the system.  Firmware is the open-firmware, pulled fresh today.

This is on my hacked kernel again, but there are no changes to ath9k_htc.

And, could be a coincidence...but if someone else sees something similar
I'm interested to know...

[ 2780.154335] usb 1-1: ath9k_htc: USB layer deinitialized
[ 2780.165806] ath9k_htc: Driver unloaded
[ 2783.008096] BUG: unable to handle kernel paging request at f8eba7c0
[ 2783.009041] IP: [<f8eba7c0>] 0xf8eba7bf
[ 2783.009041] *pdpt = 0000000000d46001 *pde = 000000003513b067 *pte = 0000000000000000
[ 2783.009041] Oops: 0010 [#1] PREEMPT SMP
[ 2783.009041] Modules linked in: iptable_raw xt_CT bridge nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 ]
[ 2783.009041] Pid: 0, comm: swapper/1 Tainted: G        WC O 3.9.0+ #25 To Be Filled By O.E.M. To Be Fi.
[ 2783.170772] EIP: 0060:[<f8eba7c0>] EFLAGS: 00210286 CPU: 1
[ 2783.170772] EIP is at 0xf8eba7c0
[ 2783.170772] EAX: f50124c0 EBX: f5cf8000 ECX: f50124c0 EDX: f8eba7c0
[ 2783.170772] ESI: f5012cb8 EDI: 00000101 EBP: f5cdfe44 ESP: f5cdfe14
[ 2783.170772]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 2783.170772] CR0: 8005003b CR2: f8eba7c0 CR3: 00d49000 CR4: 000007e0
[ 2783.170772] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 2783.170772] DR6: ffff0ff0 DR7: 00000400
[ 2783.170772] Process swapper/1 (pid: 0, ti=f5cde000 task=f5cb2670 task.ti=f5cde000)
[ 2783.170772] Stack:
[ 2783.170772]  c0460b5b 00002566 00000000 8bafa81c 00000000 00243ace f8434a40 f50124c0
[ 2783.170772]  f8eba7c0 f5cf8000 f5012cb8 c0c10a04 f5cdfe80 c0460e54 f5cdfe6c f5cf8e14
[ 2783.170772]  f5cf8c14 f5cf8a14 f50124c0 f8eba7c0 f5cf8000 f5cf8814 f5cdfe6c f5cdfe6c
[ 2783.170772] Call Trace:
[ 2783.170772]  [<c0460b5b>] ? call_timer_fn+0x2b/0x130
[ 2783.170772]  [<c0460e54>] run_timer_softirq+0x1f4/0x200
[ 2783.170772]  [<c045948a>] __do_softirq+0xaa/0x230
[ 2783.170772]  [<c0459705>] irq_exit+0xa5/0xb0
[ 2783.170772]  [<c09c0e89>] smp_apic_timer_interrupt+0x59/0x88
[ 2783.170772]  [<c047773f>] ? raw_notifier_call_chain+0x1f/0x30
[ 2783.170772]  [<c09ba704>] apic_timer_interrupt+0x34/0x3c
[ 2783.170772]  [<c0888f9e>] ? cpuidle_wrap_enter+0x3e/0xb0
[ 2783.170772]  [<c0889022>] cpuidle_enter_tk+0x12/0x20
[ 2783.170772]  [<c08889f0>] ? disable_cpuidle+0x20/0x20
[ 2783.170772]  [<c0888a31>] cpuidle_enter_state+0x11/0x50
[ 2783.170772]  [<c088925f>] cpuidle_idle_call+0x8f/0xf0
[ 2783.170772]  [<c041afcc>] cpu_idle+0xac/0xf0
[ 2783.170772]  [<c09b1477>] start_secondary+0x270/0x276
[ 2783.170772] Code:  Bad EIP value.
[ 2783.170772] EIP: [<f8eba7c0>] 0xf8eba7c0 SS:ESP 0068:f5cdfe14
[ 2783.170772] CR2: 00000000f8eba7c0
[ 2783.170772] ---[ end trace 58c689e6047c0627 ]---
[ 2783.170772] Kernel panic - not syncing: Fatal exception in interrupt
[ 2783.170772] drm_kms_helper: panic occurred, switching back to text console

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

[ath9k-devel] 3.9.0+crash on unloading ath9k_htc driver.

[Ben Greear]

On 05/01/2013 12:30 PM, Ben Greear wrote:
> I just added an ath9k_htc NIC to my system..and looks like removing the ath9k_htc
> driver crashed the system.  Firmware is the open-firmware, pulled fresh today.
>
> This is on my hacked kernel again, but there are no changes to ath9k_htc.

This happened on my first try, but ran clean the next 10+
times I tried it..so may have no relation at all to
ath9k_htc....

I was also removing ath9k and other wifi related drivers at
this time..

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com