[LEDE-DEV] [PATCH v2] ramips: add support for Ubiquiti EdgeRouter X-SFP

Paul Oranje phoranje at gmail.com
Mon Jun 12 13:31:56 PDT 2017 

Isn't this related to FS#764 ?


> Op 12 jun. 2017, om 20:14 heeft p.wassi at gmx.at het volgende geschreven:
> 
> Ok - I've got some interesting news.
> First, the stalls started to appear on multiple CPUs/tasks simultaneously:
> (find an excerpt from dmesg under [1]).
> 
> For further testing, I've disabled SQM, rebooted and whoaa...
> These kernel errors are gone. Running fine since 13 hours.
> So it seems that it's not an issue with the Edgerouters but with SQM.
> 
> My SQM configuration was basically just using cake + piece_of_cake.qos,
> but that's clearly off topic for now. (I'm also CC'ing this mail to Toke,
> the maintainer of sqm-scripts).
> 
> Regards,
> P. Wassi
> 
> [1]:
>> [  260.610000] Task dump for CPU 2:
>> [  334.230000] Task dump for CPU 2:
>> [  399.340000] Task dump for CPU 2:
>> [  579.390000] Task dump for CPU 2:
>> [13074.720000] Task dump for CPU 2:
>> [13074.850000] Task dump for CPU 3:
>> [30220.460000] Task dump for CPU 2:
>> [30220.590000] Task dump for CPU 3:
>> [52142.070000] Task dump for CPU 2:
>> [52142.200000] Task dump for CPU 3:
>> [59972.980000] Task dump for CPU 2:
>> [59973.110000] Task dump for CPU 3:
>> [70239.020000] Task dump for CPU 2:
>> [70239.150000] Task dump for CPU 3:
>> [93181.850000] Task dump for CPU 2:
>> [93181.980000] Task dump for CPU 3:
>> [113636.630000] Task dump for CPU 2:
>> [113636.760000] Task dump for CPU 3:
>> [136534.460000] Task dump for CPU 2:
>> [136534.590000] Task dump for CPU 3:
>> [156163.230000] Task dump for CPU 2:
>> [156163.360000] Task dump for CPU 3:
>> [173499.280000] Task dump for CPU 2:
>> [173499.410000] Task dump for CPU 3:
>> [173873.730000] Task dump for CPU 2:
>> [173873.860000] Task dump for CPU 3:
>> [181271.620000] Task dump for CPU 0:
>> [181271.620000] Task dump for CPU 2:
>> [181271.620000] Task dump for CPU 3:
>> [181271.620000] Task dump for CPU 0:
>> [189143.290000] Task dump for CPU 2:
>> [189143.420000] Task dump for CPU 3:
>> [207190.150000] Task dump for CPU 2:
>> [207190.280000] Task dump for CPU 3:
> 
> 
> ----------------------
> 
>> 
>> On 09/06/17 08:48, p.wassi at gmx.at wrote:
>>> Hi guys,
>>> 
>>> I may be hijacking this specific thread, but as 'testing' was mentioned here...
>>> I'm running an Edgerouter X since yesterday (not the -SPF version!) on LEDE r4356
>>> and am getting these kernel errors/warnings every five minutes or so:
>> 
>> Hi,
>> 
>> can you try with v4.9 please ?
>> 
>>     John
>> 
>>>> [  470.410000] INFO: rcu_sched detected stalls on CPUs/tasks:
>>>> [  470.420000] 	1-...: (127 GPs behind) idle=ee6/0/0 softirq=9641/9643 fqs=1
>>>> [  470.430000] 	(detected by 3, t=6004 jiffies, g=898, c=897, q=606)
>>>> [  470.440000] Task dump for CPU 1:
>>>> [  470.450000] swapper/1       R running      0     0      1 0x00100000
>>>> [  470.460000] Stack : 00000000 0e406087 0000006d ffffffff 00000061 7795a2c0 804df2a4 80490000
>>>> [  470.460000] 	  8048c75c 00000001 00000001 8048c540 8048c724 80490000 00000000 800135e4
>>>> [  470.460000] 	  1100fc03 00000003 8fc70000 8fc71ec0 80490000 8005ecc8 1100fc03 00000001
>>>> [  470.460000] 	  00000000 80490000 804df2a4 8005ecc0 80490000 8001b1a8 1100fc03 00000000
>>>> [  470.460000] 	  00000004 8048c4a0 000000a0 8001b1b0 b6eeeefd a02eacbf 5d3cafc3 7dbbdccc
>>>> [  470.460000] 	  ...
>>>> [  470.530000] Call Trace:
>>>> [  470.540000] [<8000be98>] __schedule+0x574/0x758
>>>> [  470.550000] [<800135e4>] r4k_wait_irqoff+0x0/0x20
>>>> [  470.550000]
>>>> [  470.560000] rcu_sched kthread starved for 6016 jiffies! g898 c897 f0x0 s3 ->state=0x1
>>> Kernel is 4.4.71
>>> 
>>> Also, just while editing a config file the router rebooted.
>>> Does someone else also have this issue?
>>> 
>>> Best regards,
>>> P. Wassi
>>> 
>>> 
>>>> On 07/06/17 12:10, John Crispin wrote:
>>>> 
>>>> 
>>>> On 07/06/17 01:36, Sven Roederer wrote:
>>>>> John,
>>>>> 
>>>>> just checked with master build f500799 as initrd-kernel. Looks fine as
>>>>> I can see from bootlog.
>>>>> Anything special to test?
>>>>> 
>>>>> [    1.710000] MediaTek Nand driver init, version v2.1 Fix AHB virt2phys error
>>>>> [    1.720000] Allocate 16 byte aligned buffer: 80592f90
>>>>> [    1.730000] Enable NFI Clock
>>>>> [    1.740000] # MTK NAND # : Use HW ECC
>>>>> [    1.740000] Device found in MTK table, ID: 1da, EXT_ID: 909546
>>>>> [    1.760000] Support this Device in MTK table! 1da
>>>>> [    1.770000] nand: device found, Manufacturer ID: 0x01, Chip ID: 0xda
>>>>> [    1.780000] nand: AMD/Spansion NAND 256MiB 3,3V 8-bit
>>>>> [    1.790000] nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 128
>>>>> [    1.800000] [NAND]select ecc bit:12, sparesize :112 spare_per_sector=28
>>>>> [    1.820000] Scanning device for bad blocks
>>>>> [    2.520000] 6 ofpart partitions found on MTD device MT7621-NAND
>>>>> [    2.530000] Creating 6 MTD partitions on "MT7621-NAND":
>>>>> [    2.540000] 0x000000000000-0x000000080000 : "u-boot"
>>>>> [    2.550000] 0x000000080000-0x0000000e0000 : "u-boot-env"
>>>>> [    2.560000] 0x0000000e0000-0x000000140000 : "factory"
>>>>> [    2.570000] 0x000000140000-0x000000440000 : "kernel1"
>>>>> [    2.580000] 0x000000440000-0x000000740000 : "kernel2"
>>>>> [    2.590000] 0x000000740000-0x00000ff00000 : "ubi"
>>>>> [    2.610000] [mtk_nand] probe successfully!
>>>>> [    2.610000] Signature matched and data read!
>>>>> [    2.620000] load_fact_bbt success 2047
>>>>> 
>>>>> 
>>>>> Sven
>>>> Thanks for testing, i just wanted a 2nd test result for the nand support
>>>> on v4.9. i think i'll just switch ramips to v4.9 and hope all goes well.
>>>> 
>>>>      John
>>>> 
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