Finally got an opportunity to implement the patch and test it out.
Looks like it suppressed the log spam (excellent!), but the machine
unfortunately remains unresponsive. Attached is a relevant section of
the log: I'm not able to interpret the CPU stall backtrace info, but
perhaps someone here can determine whether it's USB or the wireless
driver hanging the machine? In the log, it repeats with further
warnings and CPU stall backtraces. I can supply more, if needed.
As mentioned earlier, it seems clear I have some kind of USB hardware
issue going on, and I'll sort that out myself, I just wanted to report
the hang, in case it might help contribute toward improving the
reliability of the kernel.
Cheers!
Aug 10 14:44:09 RCBLpi kernel: [ 284.697778] wlan1: AP
fc:2d:5e:dd:54:32 changed bandwidth, new config is 2437 MHz, width 1
(2437/0 MHz)
Aug 10 14:45:00 RCBLpi kernel: [ 335.680872]
rt2800usb_tx_sta_fifo_read_completed: 1389 callbacks suppressed
Aug 10 14:45:00 RCBLpi kernel: [ 335.680887] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 335.680986] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 335.681059] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 335.681126] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 335.681193] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 335.681282] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 335.681348] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 335.681415] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 335.681548] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 335.681623] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:00 RCBLpi kernel: [ 336.171569] ieee80211 phy4:
rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for
offset 0x1700 with error -71
Aug 10 14:45:05 RCBLpi kernel: [ 340.681558]
rt2800usb_tx_sta_fifo_read_completed: 73528 callbacks suppressed
Aug 10 14:45:05 RCBLpi kernel: [ 340.681573] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:05 RCBLpi kernel: [ 340.681659] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:05 RCBLpi kernel: [ 340.681754] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:05 RCBLpi kernel: [ 340.681829] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:05 RCBLpi kernel: [ 340.681903] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:05 RCBLpi kernel: [ 340.681984] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:05 RCBLpi kernel: [ 340.682079] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:05 RCBLpi kernel: [ 340.682149] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:05 RCBLpi kernel: [ 340.682236] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:05 RCBLpi kernel: [ 340.682302] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.691516]
rt2800usb_tx_sta_fifo_read_completed: 76991 callbacks suppressed
Aug 10 14:45:10 RCBLpi kernel: [ 345.691530] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.691603] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.691704] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.691810] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.691877] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.691958] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.692024] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.692091] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.692173] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:10 RCBLpi kernel: [ 345.692241] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.701580]
rt2800usb_tx_sta_fifo_read_completed: 77030 callbacks suppressed
Aug 10 14:45:15 RCBLpi kernel: [ 350.701596] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.701722] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.701789] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.701870] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.701935] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.702001] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.702084] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.702150] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.702241] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:15 RCBLpi kernel: [ 350.702307] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.711589]
rt2800usb_tx_sta_fifo_read_completed: 77771 callbacks suppressed
Aug 10 14:45:20 RCBLpi kernel: [ 355.711603] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.711674] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.711763] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.711829] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.711917] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.711983] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.712048] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.712135] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.712199] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 355.712265] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:20 RCBLpi kernel: [ 356.171492] INFO: rcu_sched
self-detected stall on CPU
Aug 10 14:45:20 RCBLpi kernel: [ 356.171522] 0-...: (2099 ticks
this GP) idle=72a/140000000000002/0 softirq=11632/11632 fqs=1002
Aug 10 14:45:20 RCBLpi kernel: [ 356.171525] (t=2100 jiffies
g=5626 c=5625 q=17568)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171541] NMI backtrace for cpu 0
Aug 10 14:45:20 RCBLpi kernel: [ 356.171553] CPU: 0 PID: 1007 Comm:
kworker/u8:17 Tainted: G C 4.14.61-v7+ #1
Aug 10 14:45:20 RCBLpi kernel: [ 356.171558] Hardware name: BCM2835
Aug 10 14:45:20 RCBLpi kernel: [ 356.171588] Workqueue: phy4
rt2x00usb_work_rxdone [rt2x00usb]
Aug 10 14:45:20 RCBLpi kernel: [ 356.171622] [<8010ffc0>]
(unwind_backtrace) from [<8010c1fc>] (show_stack+0x20/0x24)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171640] [<8010c1fc>]
(show_stack) from [<807894fc>] (dump_stack+0xc8/0x10c)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171659] [<807894fc>]
(dump_stack) from [<8078f43c>] (nmi_cpu_backtrace+0x11c/0x120)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171676] [<8078f43c>]
(nmi_cpu_backtrace) from [<8078f520>]
(nmi_trigger_cpumask_backtrace+0xe0/0x12c)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171692] [<8078f520>]
(nmi_trigger_cpumask_backtrace) from [<8010e648>]
(arch_trigger_cpumask_backtrace+0x20/0x24)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171710] [<8010e648>]
(arch_trigger_cpumask_backtrace) from [<80185710>]
(rcu_dump_cpu_stacks+0xb0/0xdc)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171728] [<80185710>]
(rcu_dump_cpu_stacks) from [<801850b0>]
(rcu_check_callbacks+0x7e8/0x960)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171745] [<801850b0>]
(rcu_check_callbacks) from [<8018b314>]
(update_process_times+0x44/0x70)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171762] [<8018b314>]
(update_process_times) from [<8019d32c>] (tick_sched_handle+0x64/0x70)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171779] [<8019d32c>]
(tick_sched_handle) from [<8019d590>] (tick_sched_timer+0x50/0xac)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171795] [<8019d590>]
(tick_sched_timer) from [<8018c2cc>]
(__hrtimer_run_queues+0x158/0x2ec)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171810] [<8018c2cc>]
(__hrtimer_run_queues) from [<8018c704>]
(hrtimer_interrupt+0xb8/0x20c)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171827] [<8018c704>]
(hrtimer_interrupt) from [<8063de74>]
(arch_timer_handler_phys+0x40/0x48)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171846] [<8063de74>]
(arch_timer_handler_phys) from [<8017a150>]
(handle_percpu_devid_irq+0x88/0x23c)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171863] [<8017a150>]
(handle_percpu_devid_irq) from [<801749fc>]
(generic_handle_irq+0x34/0x44)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171879] [<801749fc>]
(generic_handle_irq) from [<80175050>] (__handle_domain_irq+0x6c/0xc4)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171894] [<80175050>]
(__handle_domain_irq) from [<80101520>]
(bcm2836_arm_irqchip_handle_irq+0xac/0xb0)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171911] [<80101520>]
(bcm2836_arm_irqchip_handle_irq) from [<807a4ffc>]
(__irq_svc+0x5c/0x7c)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171918] Exception
stack(0xadbffab0 to 0xadbffaf8)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171927] faa0:
00000000 00000000 a980bd00 00000000
Aug 10 14:45:20 RCBLpi kernel: [ 356.171939] fac0: b7716e80 60000113
b9fbe400 adae99d0 00000001 adbfe000 00000001 adbffb1c
Aug 10 14:45:20 RCBLpi kernel: [ 356.171949] fae0: adbffb00 adbffb00
805b3388 805b339c 60000113 ffffffff
Aug 10 14:45:20 RCBLpi kernel: [ 356.171969] [<807a4ffc>] (__irq_svc)
from [<805b339c>] (__usb_hcd_giveback_urb+0x118/0x15c)
Aug 10 14:45:20 RCBLpi kernel: [ 356.171988] [<805b339c>]
(__usb_hcd_giveback_urb) from [<805b3530>]
(usb_hcd_giveback_urb+0x4c/0xfc)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172006] [<805b3530>]
(usb_hcd_giveback_urb) from [<805dde40>]
(completion_tasklet_func+0x80/0xac)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172024] [<805dde40>]
(completion_tasklet_func) from [<805ecc60>]
(tasklet_callback+0x20/0x24)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172040] [<805ecc60>]
(tasklet_callback) from [<80123ac4>] (tasklet_hi_action+0x70/0x104)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172055] [<80123ac4>]
(tasklet_hi_action) from [<8010169c>] (__do_softirq+0x174/0x3d8)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172069] [<8010169c>]
(__do_softirq) from [<801236a8>] (irq_exit+0xe4/0x140)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172083] [<801236a8>] (irq_exit)
from [<80175054>] (__handle_domain_irq+0x70/0xc4)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172097] [<80175054>]
(__handle_domain_irq) from [<80101520>]
(bcm2836_arm_irqchip_handle_irq+0xac/0xb0)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172111] [<80101520>]
(bcm2836_arm_irqchip_handle_irq) from [<807a4ffc>]
(__irq_svc+0x5c/0x7c)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172117] Exception
stack(0xadbffc58 to 0xadbffca0)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172125] fc40:
b9d83a40 00000000
Aug 10 14:45:20 RCBLpi kernel: [ 356.172136] fc60: 00000001 00000000
60000013 00000000 aa2d4b00 a9949600 b9db0400 b9fbe400
Aug 10 14:45:20 RCBLpi kernel: [ 356.172148] fc80: 00000000 adbffcbc
adbffca8 adbffca8 807a4d2c 807a4d40 60000013 ffffffff
Aug 10 14:45:20 RCBLpi kernel: [ 356.172164] [<807a4ffc>] (__irq_svc)
from [<807a4d40>] (_raw_spin_unlock_irqrestore+0x50/0x70)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172180] [<807a4d40>]
(_raw_spin_unlock_irqrestore) from [<805ecbf8>]
(DWC_SPINUNLOCK_IRQRESTORE+0x18/0x1c)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172196] [<805ecbf8>]
(DWC_SPINUNLOCK_IRQRESTORE) from [<805e27f4>]
(dwc_otg_urb_enqueue+0x1dc/0x31c)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172212] [<805e27f4>]
(dwc_otg_urb_enqueue) from [<805b4f34>]
(usb_hcd_submit_urb+0xc8/0x934)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172226] [<805b4f34>]
(usb_hcd_submit_urb) from [<805b687c>] (usb_submit_urb+0x284/0x510)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172250] [<805b687c>]
(usb_submit_urb) from [<7f4a76e0>] (rt2x00usb_kick_rx_entry+0xb4/0xfc
[rt2x00usb])
Aug 10 14:45:20 RCBLpi kernel: [ 356.172296] [<7f4a76e0>]
(rt2x00usb_kick_rx_entry [rt2x00usb]) from [<7f4a7758>]
(rt2x00usb_clear_entry+0x30/0x34 [rt2x00usb])
Aug 10 14:45:20 RCBLpi kernel: [ 356.172354] [<7f4a7758>]
(rt2x00usb_clear_entry [rt2x00usb]) from [<7f492a44>]
(rt2x00lib_rxdone+0x148/0x5b8 [rt2x00lib])
Aug 10 14:45:20 RCBLpi kernel: [ 356.172412] [<7f492a44>]
(rt2x00lib_rxdone [rt2x00lib]) from [<7f4a8088>]
(rt2x00usb_work_rxdone+0x58/0x8c [rt2x00usb])
Aug 10 14:45:20 RCBLpi kernel: [ 356.172440] [<7f4a8088>]
(rt2x00usb_work_rxdone [rt2x00usb]) from [<80137384>]
(process_one_work+0x224/0x518)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172459] [<80137384>]
(process_one_work) from [<8013835c>] (worker_thread+0x60/0x5f0)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172476] [<8013835c>]
(worker_thread) from [<8013db68>] (kthread+0x144/0x174)
Aug 10 14:45:20 RCBLpi kernel: [ 356.172492] [<8013db68>] (kthread)
from [<801080ac>] (ret_from_fork+0x14/0x28)
Aug 10 14:45:22 RCBLpi kernel: [ 357.591518] INFO: rcu_sched detected
expedited stalls on CPUs/tasks: { 0-... } 2109 jiffies s: 221 root:
0x1/.
Aug 10 14:45:22 RCBLpi kernel: [ 357.591545] blocking rcu_node structures:
Aug 10 14:45:22 RCBLpi kernel: [ 357.591554] Task dump for CPU 0:
Aug 10 14:45:22 RCBLpi kernel: [ 357.591560] kworker/u8:17 R
running task 0 1007 2 0x00000002
Aug 10 14:45:22 RCBLpi kernel: [ 357.591603] Workqueue: phy4
rt2x00usb_work_rxdone [rt2x00usb]
Aug 10 14:45:25 RCBLpi kernel: [ 360.721537]
rt2800usb_tx_sta_fifo_read_completed: 77886 callbacks suppressed
Aug 10 14:45:25 RCBLpi kernel: [ 360.721552] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:25 RCBLpi kernel: [ 360.721651] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
Aug 10 14:45:25 RCBLpi kernel: [ 360.721720] ieee80211 phy4:
rt2800usb_tx_sta_fifo_read_completed: Warning - TX status read failed
-71
On Fri, Aug 10, 2018 at 5:14 AM, Stanislaw Gruszka <sgruszka@xxxxxxxxxx> wrote:
> On Thu, Aug 09, 2018 at 12:49:58PM -0600, Randy Oostdyk wrote:
>> On Thu, Aug 9, 2018 at 5:10 AM, Stanislaw Gruszka <sgruszka@xxxxxxxxxx> wrote:
>> > I'm reluctant to replace _warn by _dbg messages as if somethings
>> > will go wrong we will not notice that. We can use printk_ratelimited()
>> > variant instead to do not spam log in speed that it will hung
>> > the machine. But the correct fix should be in USB host drivers,
>> > which seems to be not in perfect shape on those embedded platforms.
>>
>> Agreed about the "correct" fix likely being on the USB side, but at
>> least using printk_ratelimited() will avoid the log spamming, and
>> avoid locking the machine, as you said.
>>
>> Will someone else take that approach and come up with a patch, or is
>> this something I should try to take on myself? I could certainly test
>> such a patch, if desired.
>>
>> Meanwhile, I'll look into reporting the USB bug, if it hasn't already been.
>
> I'm attaching the ratelimit patch for test.
>
> However after reading email from Larry I withdraw blaming USB host
> driver. The issue could be faulty HW and USB host driver can not do
> much much about this.
>
> Another question is if machine hung due to log spam or because there
> was some crash. Those error conditions trigger code paths that are
> not usually used, so there could be some oops that hung the system.
>
> Anyway you can test the patch and report back.
>
> Cheers
> Stanislaw
