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 Utilite eth1 intel igb Detected Tx Unit Hang 
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Joined: Thu Nov 28, 2013 12:41 am
Posts: 63
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
peolsson wrote:
Johan,

I've tested all of the workarounds that you can find when Googling around for this issue. However, nothing has really helped. Some of it did improve things - but since it wasn't 100% ok, I kind of gave up..

But if you find any more clues - please get back and report your findings here.

/Peter


Yes, I'm aware of all the work and time people has put into this.
I'm merely trying to understand the issue so that I can assess if a fix is plausible or not.

I was inspired by this thread:
http://comments.gmane.org/gmane.linux.drivers.e1000.devel/14111

The intel guy suggests that the Atom processor is a bit too weak to handle all the load. My thinking is that if an Atom might be too slow, then the Cortex A9 might have the same problem.

I'll post a summary of my findings later this evening.


Tue Dec 02, 2014 11:05 am
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Joined: Wed May 25, 2011 11:05 am
Posts: 521
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
I was interested in this, where alternative Ethernet cards used on the pci, all with hang probs.
Go to post marked green and one below (near bottom)
https://community.freescale.com/thread/328689


Tue Dec 02, 2014 1:56 pm
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Joined: Thu Nov 28, 2013 12:41 am
Posts: 63
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
pepedog wrote:
I was interested in this, where alternative Ethernet cards used on the pci, all with hang probs.
Go to post marked green and one below (near bottom)
https://community.freescale.com/thread/328689


Very interesting find indeed.

I have been thinking in terms of this issue not being an actual driver bug, but rather a PCIe issue caused by either a timing bug or an outright misconfiguration.

I think that this can be solved.


Tue Dec 02, 2014 3:12 pm
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Joined: Mon Jan 09, 2012 3:16 am
Posts: 351
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
I have watched this thread with interest for some time. Although my particular use of Utilite is not adversely affected by the PCIe-Intel GbE stability issues, it seems other users are experiencing significant inconveniences based on their needs for 2 reliably working Ethernet ports.

While reviewing many webpages and forums covering many i.MX6 platforms, I have noticed there seems to be widespread implementation issues with PCIe. Users of Sabre Lite, Wandboard, TBS Technologies Matrix, Novpek, Phyflex, and other i.MX6 systems are reporting various problems with PCIe.

One recurring theme I encountered relates to issues with the PCIe reference clock. Since i.MX6 PCIe section does not provide a reference clock, an external clock source must be supplied. Some board designs use the i.MX6 LVDS general purpose clock as the PCIe reference, but unfortunately some of those designs have suffered from issues with clock jitter and the proper assignment of the LVDS1 and LDVS2 clock lines. Fortunately, Compulab has anticipated potential clock jitter issues and it is my understanding that Utilite uses a dedicated, discrete low jitter clock source, so it would seem unlikely that clock jitter is causing the dropouts.

Another i.MX6 PCIe clock issue relates to the design of the clock line resistor termination networks. I have seen reports where some boards have experienced PCIe issues due to the resistor values selected. As it turns out, the values of the resistors selected were more critical than the designers originally anticipated. Utilite's predecessor, the CMFX-6/SBFX-6 combination utilizes resistor values that perfectly match those recommended in PCIe design guides, so I would expect that Utilite is compliant as well. However, this might be worth verifying.

A further issue I saw referenced was a hang/stability problem related to the passing of PCIe control from UBoot to Linux during startup. At least one developer attributes this to an inherent design issue with the i.MX6 itself.

Based on the releatively prevalent PCIe issues in a variety of i.MX6 designs, I am becoming more and more suspicious that Utilite's Intel GbE issues are really PCIe issues as opposed to a problem with the Intel I211 Ethernet Controller. I would imagine that Freescale's 3.0.35 BSP is partly to blame. However, since some Utilite developers have moved beyond 3.0.35 and are still experiencing the problem, I also suspect there may be a hardware aspect to the issue.

Given the apparent challenge of i.MX6 PCIe design and prevalent Gremlins in those designs, I wonder if the i.MX6 CPU is possibly the culprit. The precedent for an i.MX6 hardware issue is there, because as we know, for all i.MX6 systems the "native" GbE port is actually limited to 470 Mbps due to the hardware implementation.

I also wonder how Freescale and Oracle are faring with regards to this issue in the development of their Utilite based IOT Gateway. It would seem likely that given the network dependance of an IOT gateway, they would have encountered the GbE issue. One would think that Freescale and Oracle would have the resources to identify and solve the problem.

Hopefully, I am entirely wrong about any hardware basis and the solution will be a simple, yet to be discovered software patch.

Best Regards,

hassellbear


Wed Dec 03, 2014 7:58 pm
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Joined: Thu Apr 16, 2015 11:51 pm
Posts: 1
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
Bump. Any resolution for this? I still experience this problem using:

Linux utilite-desktop 3.0.35-cm-fx6-6.3 #82 SMP Wed Dec 17 10:01:46 IST 2014 armv7l armv7l armv7l GNU/Linux

Heavy loads on IGB trigger - sometimes. ran a 60 second test and got the problem, a 3 minute test produced 2, and a 30 minute test produced none. No other traffic on this segment.

I see only 2 commits in Gitorious after the build date of this kernel. Neither has anything to do with this.


Fri Apr 17, 2015 12:00 am
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Joined: Sat Mar 15, 2014 3:57 pm
Posts: 27
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
I don't think anyone really cares about it, and even tries to fix it anymore. I purchased my unit for the only reason to be a router, but after spending weeks on trying to solve this issue, I gave up :(

/Peter


Fri Apr 17, 2015 6:25 am
Profile

Joined: Thu Nov 27, 2014 2:32 am
Posts: 2
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
peolsson wrote:
I don't think anyone really cares about it, and even tries to fix it anymore. I purchased my unit for the only reason to be a router, but after spending weeks on trying to solve this issue, I gave up :(

/Peter


If you're interested in doing this, I actually purchased mine for the same reason. Workaround:

Buy a managed switch, and set up the ports as follows:
1 x tagged VLAN port (IEEE 802.1Q/Trunking) - plugged into your good Utilite port
1 x untagged port (Associated with VLAN 200) - plugged into your Internet source
Remaining ports untagged (Associated with VLAN 100)
[For the purpose of this exercise, VLAN 200 is for WAN, and VLAN 100 is for LAN, but these numbers can be substituted with any valid VLAN numbers.]

Set up subinterfaces on the Utilite for each VLAN. After the subinterfaces are setup, you should be able to configure PPPoE over the WAN VLAN, and a standard IPv4 setup on the LAN VLAN.

This config is called router on a stick which I've now been using for a few months without any issues. I'm using netctl for my network management on Arch Linux.


Fri Apr 17, 2015 10:29 am
Profile

Joined: Thu Feb 06, 2014 10:59 pm
Posts: 25
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
Code:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:303 dev_watchdog+0x250/0x25c()
NETDEV WATCHDOG: eth0 (fec): transmit queue 0 timed out
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.17.99 #15
[<c010fdb8>] (unwind_backtrace+0x0/0xfc) from [<c010b36c>] (show_stack+0x10/0x14)
[<c010b36c>] (show_stack+0x10/0x14) from [<c0596ed4>] (dump_stack+0x90/0xc8)
[<c0596ed4>] (dump_stack+0x90/0xc8) from [<c0120bb0>] (warn_slowpath_common+0x6c/0x88)
[<c0120bb0>] (warn_slowpath_common+0x6c/0x88) from [<c0120bfc>] (warn_slowpath_fmt+0x30/0x40)
[<c0120bfc>] (warn_slowpath_fmt+0x30/0x40) from [<c04de118>] (dev_watchdog+0x250/0x25c)
[<c04de118>] (dev_watchdog+0x250/0x25c) from [<c016dadc>] (call_timer_fn.isra.32+0x24/0x88)
[<c016dadc>] (call_timer_fn.isra.32+0x24/0x88) from [<c016dd00>] (run_timer_softirq+0x1c0/0x23c)
[<c016dd00>] (run_timer_softirq+0x1c0/0x23c) from [<c0124550>] (__do_softirq+0x114/0x2b4)
[<c0124550>] (__do_softirq+0x114/0x2b4) from [<c0124a44>] (irq_exit+0x12c/0x188)
[<c0124a44>] (irq_exit+0x12c/0x188) from [<c015f8ac>] (__handle_domain_irq+0x60/0xa0)
[<c015f8ac>] (__handle_domain_irq+0x60/0xa0) from [<c0100780>] (gic_handle_irq+0x24/0x5c)
[<c0100780>] (gic_handle_irq+0x24/0x5c) from [<c010c178>] (__irq_svc+0x78/0xd8)
Exception stack(0xc0901f50 to 0xc0901f98)
1f40:                                     ed9982c0 00000000 022f046c c01163c0
1f60: c0900000 c090d46c c090d424 c0942d45 c059feac 00000001 c0942d45 c0942ec0
1f80: 01000000 c0901fa0 c010766c c0107670 60030013 ffffffff
[<c010c178>] (__irq_svc+0x78/0xd8) from [<c0107670>] (arch_cpu_idle+0x38/0x3c)
[<c0107670>] (arch_cpu_idle+0x38/0x3c) from [<c015756c>] (cpu_startup_entry+0xfc/0x148)
[<c015756c>] (cpu_startup_entry+0xfc/0x148) from [<c0800c60>] (0xc0800c60)
---[ end trace 04d865074b481791 ]---
fec 2188000.ethernet eth0: TX ring dump
Nr     SC     addr       len  SKB
  0    0x1400 0x3c6d9800   54    (nil)
  1    0x1c00 0x3c6d8000 1056 ec089b80
  2    0x1c00 0x3c6d8800  121 ec17ef40
  3    0x1c00 0x3c51b000   66 ec0c71c0
  4    0x1c00 0x3bc15000   66 ec17e940
  5    0x1c00 0x3c05b000  110 ec050940
  6    0x1400 0x3c467800   42    (nil)
  7    0x1c00 0x3c485800  910 ec17eac0
  8    0x1400 0x3c485000   42    (nil)
  9    0x1c00 0x3c18e800 1103 ec0414c0
10    0x1c00 0x3c18e000   66 ec041280
11    0x1400 0x3c186800   54    (nil)
12    0x1c00 0x3c186000 1056 ec041940
13    0x1c00 0x3c388800   42 ec041340
14    0x1c00 0x3c388000  112 ec041880
15    0x1400 0x3bd00800   54    (nil)
16    0x1c00 0x3bd00000 1056 ec041a00
17    0x1400 0x3bcea800   42    (nil)
18    0x1c00 0x3bcea000  800 ec53adc0
19    0x1400 0x3bcf2800   42    (nil)
20    0x1c00 0x3bcf2000 1103 ec53ae80
21    0x1400 0x3c389800   66    (nil)
22    0x1c00 0x3c389000 1056 ec53af40
23    0x1400 0x3bd25800   54    (nil)
24    0x1c00 0x3bd25000 1056 ec53ab80
25    0x1c00 0x3c385800   74 ec53aa00
26    0x1400 0x3c385000   54    (nil)
27    0x1c00 0x3bceb800 1460 ec53a940
28    0x1400 0x3bceb000   54    (nil)
29    0x1c00 0x3c4fa800  652 ec08e880
30    0x1400 0x3c4fa000   54    (nil)
31    0x1c00 0x3bd22800 1460 ec168e80
32    0x1400 0x3bd22000   54    (nil)
33    0x1c00 0x3c09a800  652 ec53ad00
34 S  0x1c00 0x00000000 1056    (nil)
35    0x1400 0x00000000   42    (nil)
36    0x1c00 0x00000000  854    (nil)
37    0x1c00 0x00000000  135    (nil)
38    0x1c00 0x00000000   66    (nil)
39    0x1400 0x00000000   42    (nil)
40    0x1c00 0x00000000 1103    (nil)
41    0x1c00 0x00000000   95    (nil)
42    0x1400 0x00000000   42    (nil)
43    0x1c00 0x00000000  592    (nil)
44    0x1400 0x00000000   42    (nil)
45    0x1c00 0x00000000  233    (nil)
46    0x1400 0x00000000   42    (nil)
47    0x1c00 0x00000000 1027    (nil)
48    0x1c00 0x00000000  140    (nil)
49    0x1c00 0x00000000  168    (nil)
50    0x1400 0x00000000   54    (nil)
51    0x1c00 0x00000000 1056    (nil)
52    0x1400 0x00000000   42    (nil)
53    0x1c00 0x00000000  311    (nil)
54    0x1c00 0x00000000   54    (nil)
55    0x1c00 0x00000000   66    (nil)
56    0x1400 0x00000000   42    (nil)
57    0x1c00 0x00000000  832    (nil)
58    0x1c00 0x00000000   74    (nil)
59    0x1400 0x00000000   42    (nil)
60    0x1c00 0x00000000 1362    (nil)
61    0x1400 0x00000000   42    (nil)
62    0x1c00 0x00000000 1456    (nil)
63    0x1400 0x00000000   42    (nil)
64    0x1c00 0x00000000 1103    (nil)
65    0x1c00 0x00000000  107    (nil)
66    0x1400 0x00000000   42    (nil)
67    0x1c00 0x00000000  862    (nil)
68    0x1400 0x00000000   42    (nil)
69    0x1c00 0x00000000 1026    (nil)
70    0x1c00 0x00000000  103    (nil)
71    0x1400 0x00000000   42    (nil)
72    0x1c00 0x00000000  861    (nil)
73    0x1c00 0x00000000   66    (nil)
74    0x1400 0x00000000   42    (nil)
75    0x1c00 0x00000000 1092    (nil)
76    0x1400 0x00000000   42    (nil)
77    0x1c00 0x00000000  847    (nil)
78    0x1c00 0x00000000   54    (nil)
79    0x1c00 0x00000000   54    (nil)
80    0x1400 0x00000000   42    (nil)
81    0x1c00 0x00000000 1095    (nil)
82    0x1400 0x00000000   54    (nil)
83    0x1c00 0x00000000 1460    (nil)
84    0x1400 0x00000000   54    (nil)
85    0x1c00 0x00000000 1056    (nil)
86    0x1400 0x00000000   42    (nil)
87    0x1c00 0x00000000 1096    (nil)
88    0x1c00 0x00000000   66    (nil)
89    0x1400 0x00000000   54    (nil)
90    0x1c00 0x00000000  652    (nil)
91    0x1c00 0x00000000  135    (nil)
92    0x1c00 0x00000000  147    (nil)
93    0x1400 0x00000000   42    (nil)
94    0x1c00 0x00000000  857    (nil)
95    0x1c00 0x00000000  176    (nil)
96    0x1c00 0x00000000   66    (nil)
97    0x1400 0x00000000   54    (nil)
98    0x1c00 0x00000000 1056    (nil)
99    0x1400 0x00000000   42    (nil)
100    0x1c00 0x00000000 1102    (nil)
101    0x1c00 0x00000000   66    (nil)
102    0x1400 0x00000000   66    (nil)
103    0x1c00 0x00000000  768    (nil)
104    0x1400 0x00000000   42    (nil)
105    0x1c00 0x00000000  854    (nil)
106    0x1400 0x00000000   42    (nil)
107    0x1c00 0x00000000 1090    (nil)
108    0x1400 0x00000000   42    (nil)
109    0x1c00 0x00000000 1096    (nil)
110    0x1400 0x00000000   54    (nil)
111    0x1c00 0x00000000 1056    (nil)
112    0x1c00 0x00000000   74    (nil)
113    0x1400 0x00000000   42    (nil)
114    0x1c00 0x00000000  852    (nil)
115    0x1400 0x00000000   42    (nil)
116    0x1c00 0x00000000  831    (nil)
117    0x1400 0x00000000   42    (nil)
118    0x1c00 0x00000000  592    (nil)
119    0x1400 0x00000000   42    (nil)
120    0x1c00 0x00000000  285    (nil)
121    0x1400 0x00000000   66    (nil)
122    0x1c00 0x00000000  768    (nil)
123    0x1400 0x00000000   54    (nil)
124    0x1c00 0x00000000 1056    (nil)
125    0x1400 0x00000000   54    (nil)
126    0x1c00 0x00000000 1460    (nil)
127    0x1400 0x00000000   54    (nil)
128    0x1c00 0x00000000 1212    (nil)
129    0x1400 0x00000000   42    (nil)
130    0x1c00 0x00000000  848    (nil)
131    0x1400 0x00000000   42    (nil)
132    0x1c00 0x00000000 1092    (nil)
133    0x1400 0x00000000   42    (nil)
134    0x1c00 0x00000000 1037    (nil)
135    0x1400 0x00000000   42    (nil)
136    0x1c00 0x00000000 1127    (nil)
137    0x1400 0x00000000   42    (nil)
138    0x1c00 0x00000000 1099    (nil)
139    0x1400 0x00000000   42    (nil)
140    0x1c00 0x00000000 1093    (nil)
141    0x1c00 0x00000000  152    (nil)
142    0x1400 0x00000000   42    (nil)
143    0x1c00 0x00000000 1129    (nil)
144    0x1400 0x00000000   54    (nil)
145    0x1c00 0x00000000 1056    (nil)
146    0x1400 0x00000000   42    (nil)
147    0x1c00 0x00000000 1093    (nil)
148    0x1400 0x00000000   42    (nil)
149    0x1c00 0x00000000  592    (nil)
150    0x1400 0x00000000   42    (nil)
151    0x1c00 0x00000000  299    (nil)
152    0x1400 0x00000000   42    (nil)
153    0x1c00 0x00000000  592    (nil)
154    0x1400 0x00000000   42    (nil)
155    0x1c00 0x00000000  359    (nil)
156    0x1400 0x00000000   66    (nil)
157    0x1c00 0x00000000  288    (nil)
158    0x1c00 0x00000000  146    (nil)
159    0x1400 0x00000000   42    (nil)
160    0x1c00 0x00000000 1028    (nil)
161    0x1400 0x00000000   42    (nil)
162    0x1c00 0x00000000 1092    (nil)
163    0x1400 0x00000000   66    (nil)
164    0x1c00 0x00000000  768    (nil)
165    0x1c00 0x00000000   66    (nil)
166    0x1400 0x00000000   42    (nil)
167    0x1c00 0x00000000 1089    (nil)
168    0x1400 0x00000000   54    (nil)
169    0x1c00 0x00000000 1056    (nil)
170    0x1400 0x00000000   66    (nil)
171    0x1c00 0x00000000 1056    (nil)
172    0x1400 0x00000000   66    (nil)
173    0x1c00 0x00000000  816    (nil)
174    0x1c00 0x00000000  128    (nil)
175    0x1400 0x00000000   42    (nil)
176    0x1c00 0x00000000 1099    (nil)
177    0x1400 0x00000000   54    (nil)
178    0x1c00 0x00000000 1056    (nil)
179    0x1400 0x00000000   54    (nil)
180    0x1c00 0x00000000 1056    (nil)
181    0x1400 0x00000000   42    (nil)
182    0x1c00 0x00000000 1092    (nil)
183    0x1400 0x00000000   42    (nil)
184    0x1c00 0x00000000 1097    (nil)
185    0x1c00 0x00000000   66    (nil)
186    0x1c00 0x00000000   66    (nil)
187    0x1400 0x00000000   66    (nil)
188    0x1c00 0x00000000 1024    (nil)
189    0x1400 0x00000000   42    (nil)
190    0x1c00 0x00000000 1094    (nil)
191    0x1400 0x00000000   54    (nil)
192    0x1c00 0x00000000 1056    (nil)
193    0x1c00 0x00000000   66    (nil)
194    0x1c00 0x00000000  128    (nil)
195    0x1c00 0x00000000   66    (nil)
196    0x1c00 0x00000000   66    (nil)
197    0x1400 0x00000000   42    (nil)
198    0x1c00 0x00000000 1014    (nil)
199    0x1400 0x00000000   42    (nil)
200    0x1c00 0x00000000  592    (nil)
201    0x1400 0x00000000   42    (nil)
202    0x1c00 0x00000000  285    (nil)
203    0x1400 0x00000000   54    (nil)
204    0x1c00 0x00000000 1056    (nil)
205    0x1400 0x00000000   66    (nil)
206    0x1c00 0x00000000  816    (nil)
207    0x1400 0x00000000   42    (nil)
208    0x1c00 0x00000000 1098    (nil)
209    0x1400 0x00000000   42    (nil)
210    0x1c00 0x00000000 1096    (nil)
211    0x1400 0x00000000   42    (nil)
212    0x1c00 0x00000000 1091    (nil)
213    0x1400 0x00000000   54    (nil)
214    0x1c00 0x00000000 1056    (nil)
215    0x1400 0x00000000   42    (nil)
216    0x1c00 0x00000000 1095    (nil)
217    0x1400 0x00000000   42    (nil)
218    0x1c00 0x00000000  592    (nil)
219    0x1400 0x00000000   42    (nil)
220    0x1c00 0x00000000  273    (nil)
221    0x1400 0x00000000   54    (nil)
222    0x1c00 0x00000000 1056    (nil)
223    0x1c00 0x00000000   66    (nil)
224    0x1400 0x00000000   66    (nil)
225    0x1c00 0x00000000  304    (nil)
226    0x1400 0x00000000   42    (nil)
227    0x1c00 0x00000000 1089    (nil)
228    0x1400 0x00000000   42    (nil)
229    0x1c00 0x00000000 1095    (nil)
230    0x1c00 0x00000000   66    (nil)
231    0x1c00 0x00000000  115    (nil)
232    0x1400 0x00000000   42    (nil)
233    0x1c00 0x00000000  592    (nil)
234    0x1400 0x00000000   42    (nil)
235    0x1c00 0x00000000  296    (nil)
236    0x1400 0x00000000   42    (nil)
237    0x1c00 0x00000000  305    (nil)
238    0x1c00 0x00000000  129    (nil)
239    0x1400 0x00000000   54    (nil)
240    0x1c00 0x00000000 1460    (nil)
241    0x1400 0x00000000   54    (nil)
242    0x1c00 0x00000000  652    (nil)
243    0x1c00 0x00000000  181    (nil)
244    0x1400 0x00000000   42    (nil)
245    0x1c00 0x00000000  853    (nil)
246    0x1c00 0x00000000   66    (nil)
247    0x1c00 0x00000000   66    (nil)
248    0x1400 0x00000000   54    (nil)
249    0x1c00 0x00000000 1056    (nil)
250    0x1c00 0x00000000  164    (nil)
251    0x1c00 0x00000000  114    (nil)
252  H 0x1c00 0x00000000   66    (nil)
253    0x1400 0x3be93800   42    (nil)
254    0x1c00 0x3be93000  847 ec0b4340
255    0x1400 0x3be94800   54    (nil)
256    0x1c00 0x3be94000 1460 ec08eac0
257    0x1400 0x3be95800   54    (nil)
258    0x1c00 0x3be95000  652 ec17b4c0
259    0x1c00 0x3be96800   66 ecf38100
260    0x1400 0x3be96000   42    (nil)
261    0x1c00 0x3be97800  857 ec0c77c0
262    0x1400 0x3be97000   42    (nil)
263    0x1c00 0x3be98800 1088 ec1afe80
264    0x1400 0x3be98000   42    (nil)
265    0x1c00 0x3be99800  386 ec0bac40
266    0x1400 0x3be99000   42    (nil)
267    0x1c00 0x3be9a800 1091 ec042940
268    0x1400 0x3be9a000   42    (nil)
269    0x1c00 0x3be9b800 1095 ece4f880
270    0x1c00 0x3be9b000  153 ec159580
271    0x1400 0x3be9c800   42    (nil)
272    0x1c00 0x3be9c000  854 ec189e80
273    0x1400 0x3be9d800   54    (nil)
274    0x1c00 0x3be9d000 1056 ec041580
275    0x1400 0x3be9e800   42    (nil)
276    0x1c00 0x3be9e000 1088 ec17b280
277    0x1400 0x3be9f800   66    (nil)
278    0x1c00 0x3be9f000  768 ecf38dc0
279    0x1400 0x3bea0800   42    (nil)
280    0x1c00 0x3bea0000 1112 ec182d00
281    0x1400 0x3bea1800   42    (nil)
282    0x1c00 0x3bea1000 1104 ec159a00
283    0x1c00 0x3bea2800   66 ec0b6280
284    0x1c00 0x3bea2000   66 ecf10580
285    0x1c00 0x3bea3800   66 ec177d00
286    0x1400 0x3bea3000   42    (nil)
287    0x1c00 0x3bea4800 1094 ec189640
288    0x1400 0x3bea4000   42    (nil)
289    0x1c00 0x3bea5800 1118 ec1594c0
290    0x1400 0x3bea5000   54    (nil)
291    0x1c00 0x3bea6800 1056 ec041100
292    0x1c00 0x3bea6000  118 ec160280
293    0x1400 0x3bea7800   42    (nil)
294    0x1c00 0x3bea7000 1097 ec0bad00
295    0x1400 0x3bea8800   54    (nil)
296    0x1c00 0x3bea8000 1056 ec16e880
297    0x1400 0x3bea9800   42    (nil)
298    0x1c00 0x3bea9000 1092 ec0be640
299    0x1c00 0x3beaa800   66 ec089400
300    0x1400 0x3beaa000   54    (nil)
301    0x1c00 0x3beab800 1056 ec17ba00
302    0x1400 0x3beab000   42    (nil)
303    0x1c00 0x3beac800  861 ec0ccc40
304    0x1400 0x3beac000   42    (nil)
305    0x1c00 0x3bead800  852 ec15c940
306    0x1400 0x3bead000   66    (nil)
307    0x1c00 0x3beae800  768 ece4fdc0
308    0x1c00 0x3beae000   66 ec168a00
309    0x1c00 0x3beaf800   66 ec68c400
310    0x1c00 0x3beaf000   66 ec0b6b80
311    0x1400 0x3beb0800   42    (nil)
312    0x1c00 0x3beb0000 1090 ec04cac0
313    0x1400 0x3beb1800   54    (nil)
314    0x1c00 0x3beb1000 1056 ec17be80
315    0x1400 0x3beb2800   42    (nil)
316    0x1c00 0x3beb2000  371 ec08ea00
317    0x1400 0x3beb4800   42    (nil)
318    0x1c00 0x3beb4000 1099 ec041700
319    0x1c00 0x3beb5800  147 ec0b6100
320    0x1400 0x3beb5000   42    (nil)
321    0x1c00 0x3beb6800  849 ec182a00
322    0x1400 0x3beb6000   42    (nil)
323    0x1c00 0x3beb7800  381 ecf38e80
324    0x1400 0x3beb7000   42    (nil)
325    0x1c00 0x3beb8800 1103 ec182ac0
326    0x1c00 0x3beb8000   66 ec07cd00
327    0x1400 0x3beb9800   42    (nil)
328    0x1c00 0x3beb9000  375 ec68c280
329    0x1c00 0x3beba800  109 ec0b6a00
330    0x1400 0x3beba000   42    (nil)
331    0x1c00 0x3bebb800  592 ec16ea00
332    0x1400 0x3bebb000   42    (nil)
333    0x1c00 0x3bebc800  332 ecf381c0
334    0x1400 0x3bebc000   54    (nil)
335    0x1c00 0x3bebd800 1056 ec189040
336    0x1c00 0x3bebd000  147 ec174a00
337    0x1c00 0x3bebe800  115 ec174940
338    0x1400 0x3bebe000   42    (nil)
339    0x1c00 0x3bebf800 1098 ec68cac0
340    0x1c00 0x3bebf000   66 ec68c640
341    0x1400 0x3bec0800   42    (nil)
342    0x1c00 0x3bec0000 1088 ec1af880
343    0x1400 0x3bec1800   42    (nil)
344    0x1c00 0x3bec1000 1097 ec0cce80
345    0x1400 0x3bec2800   42    (nil)
346    0x1c00 0x3bec2000 1091 ecf101c0
347    0x1c00 0x3bec3800  115 ec086100
348    0x1400 0x3bec3000   42    (nil)
349    0x1c00 0x3bec4800  592 ec0b4d00
350    0x1400 0x3bec4000   42    (nil)
351    0x1c00 0x3bec5800  285 ec17e880
352    0x1400 0x3bec5000   42    (nil)
353    0x1c00 0x3bec6800  319 ec189dc0
354    0x1400 0x3bec6000   42    (nil)
355    0x1c00 0x3bec7800 1100 ec17ed00
356    0x1c00 0x3bec7000   66 ec0c7d00
357    0x1400 0x3bec8800   42    (nil)
358    0x1c00 0x3bec8000  592 ec1af7c0
359    0x1400 0x3bec9800   42    (nil)
360    0x1c00 0x3bec9000  294 ec1afb80
361    0x1400 0x3beca800   42    (nil)
362    0x1c00 0x3beca000 1101 ec68cc40
363    0x1400 0x3becb800   42    (nil)
364    0x1c00 0x3becb000  372 ecf107c0
365    0x1400 0x3becc800   42    (nil)
366    0x1c00 0x3becc000 1089 ec041040
367    0x1400 0x3becd800   42    (nil)
368    0x1c00 0x3becd000  380 ec08e100
369    0x1400 0x3bece800   42    (nil)
370    0x1c00 0x3bece000  843 ec0c7100
371    0x1400 0x3becf800   42    (nil)
372    0x1c00 0x3becf000 1074 ec177040
373    0x1400 0x3bed0800   54    (nil)
374    0x1c00 0x3bed0000 1056 ec160700
375    0x1400 0x3bed1800   42    (nil)
376    0x1c00 0x3bed1000  480 ec1af1c0
377    0x1400 0x3bed2800   42    (nil)
378    0x1c00 0x3bed2000 1101 ece4fac0
379    0x1400 0x3bed3800   42    (nil)
380    0x1c00 0x3bed3000 1088 ec1ba4c0
381    0x1c00 0x3bed4800  105 ec089700
382    0x1c00 0x3bed4000  109 ec1ba1c0
383    0x1400 0x3bed5800   42    (nil)
384    0x1c00 0x3bed5000  592 ec17bf40
385    0x1400 0x3bed6800   42    (nil)
386    0x1c00 0x3bed6000  266 ec1afdc0
387    0x1c00 0x3bed7800   66 ec159e80
388    0x1c00 0x3bed7000  103 ec0beb80
389    0x1c00 0x3bed8800   66 ec17b400
390    0x1c00 0x3bed8000  103 ec68c1c0
391    0x1400 0x3bed9800   42    (nil)
392    0x1c00 0x3bed9000  592 ec182b80
393    0x1400 0x3beda800   42    (nil)
394    0x1c00 0x3beda000  592 ec182f40
395    0x1400 0x3bedb800   42    (nil)
396    0x1c00 0x3bedb000  592 ec177580
397    0x1400 0x3bedc800   42    (nil)
398    0x1c00 0x3bedc000  292 ec177e80
399    0x1c00 0x3bedd800  119 ec15cb80
400    0x1400 0x3bedd000   42    (nil)
401    0x1c00 0x3bede800  592 ec0cc640
402    0x1400 0x3bede000   42    (nil)
403    0x1c00 0x3bedf800  311 ec0ccd00
404    0x1400 0x3bedf000   42    (nil)
405    0x1c00 0x3bee0800 1095 ec0cc880
406    0x1400 0x3bee0000   54    (nil)
407    0x1c00 0x3bee1800 1056 ec08e040
408    0x1c00 0x3bee1000   66 ec0c1dc0
409    0x1400 0x3bee2800   42    (nil)
410    0x1c00 0x3bee2000  592 ec0be280
411    0x1400 0x3bee3800   42    (nil)
412    0x1c00 0x3bee3000  561 ec168d00
413    0x1400 0x3bee4800   54    (nil)
414    0x1c00 0x3bee4000 1056 ec15c880
415    0x1400 0x3bee5800   42    (nil)
416    0x1c00 0x3bee5000  263 ec0c1340
417    0x1400 0x3bee6800   42    (nil)
418    0x1c00 0x3bee6000  262 ec1afac0
419    0x1400 0x3bee7800   42    (nil)
420    0x1c00 0x3bee7000  592 ec159dc0
421    0x1400 0x3bee8800   42    (nil)
422    0x1c00 0x3bee8000  289 ec17e400
423    0x1400 0x3bee9800   54    (nil)
424    0x1c00 0x3bee9000 1056 ec04c7c0
425    0x1400 0x3beea800   42    (nil)
426    0x1c00 0x3beea000 1089 ec081880
427    0x1400 0x3beeb800   42    (nil)
428    0x1c00 0x3beeb000 1093 ec0b6700
429    0x1400 0x3beec800   42    (nil)
430    0x1c00 0x3beec000 1098 ec16e100
431    0x1c00 0x3beed800   66 ec081ac0
432    0x1400 0x3beed000   42    (nil)
433    0x1c00 0x3beee800 1088 ec0be4c0
434    0x1400 0x3beee000   42    (nil)
435    0x1c00 0x3beef800 1097 ec08e940
436    0x1400 0x3beef000   42    (nil)
437    0x1c00 0x3bef0800 1099 ec086340
438    0x1400 0x3bef0000   42    (nil)
439    0x1c00 0x3bef1800  828 ec0ccac0
440    0x1c00 0x3bef1000  140 ecf10040
441    0x1400 0x3bef2800   42    (nil)
442    0x1c00 0x3bef2000 1101 ec0ccdc0
443    0x1400 0x3bef4800   42    (nil)
444    0x1c00 0x3bef4000  592 ec0ccf40
445    0x1400 0x3bef5800   42    (nil)
446    0x1c00 0x3bef5000  363 ec050040
447    0x1400 0x3bef6800   42    (nil)
448    0x1c00 0x3bef6000  837 ec0be7c0
449    0x1400 0x3bef7800   42    (nil)
450    0x1c00 0x3bef7000  829 ec1afa00
451    0x1400 0x3bef8800   54    (nil)
452    0x1c00 0x3bef8000 1056 ec0c74c0
453    0x1400 0x3bef9800   42    (nil)
454    0x1c00 0x3bef9000  851 ec177340
455    0x1c00 0x3befa800   91 ec1ba940
456    0x1c00 0x3befa000   66 ec0baf40
457    0x1400 0x3befb800   42    (nil)
458    0x1c00 0x3befb000 1092 ec1597c0
459    0x1400 0x3befc800   42    (nil)
460    0x1c00 0x3befc000 1100 ec041f40
461    0x1c00 0x3befd800  132 ec0c7ac0
462    0x1c00 0x3befd000   66 ec0c7880
463    0x1400 0x3befe800   42    (nil)
464    0x1c00 0x3befe000 1100 ec0c7040
465    0x1400 0x3beff800   54    (nil)
466    0x1c00 0x3beff000 1056 ec15cd00
467    0x1400 0x3bf00800   54    (nil)
468    0x1c00 0x3bf00000 1056 ec159100
469    0x1400 0x3bf01800   42    (nil)
470    0x1c00 0x3bf01000 1098 ec182340
471    0x1400 0x3bf02800   42    (nil)
472    0x1c00 0x3bf02000  849 ec089280
473    0x1400 0x3bf03800   54    (nil)
474    0x1c00 0x3bf03000 1056 ec089340
475    0x1400 0x3bf04800   42    (nil)
476    0x1c00 0x3bf04000  842 ece4f940
477    0x1400 0x3bf05800   42    (nil)
478    0x1c00 0x3bf05000  834 ece4f640
479    0x1c00 0x3bf06800   66 ece4fb80
480    0x1400 0x3bf06000   66    (nil)
481    0x1c00 0x3bf07800  768 ec042100
482    0x1400 0x3bf07000   42    (nil)
483    0x1c00 0x3bf08800 1089 ec042640
484    0x1400 0x3bf08000   54    (nil)
485    0x1c00 0x3bf09800 1056 ece4f340
486    0x1400 0x3bf09000   66    (nil)
487    0x1c00 0x3bf0a800 1056 ec0b6580
488    0x1400 0x3bf0a000   42    (nil)
489    0x1c00 0x3bf0b800 1089 ec081940
490    0x1400 0x3bf0b000   42    (nil)
491    0x1c00 0x3bf0c800  835 ec0c1400
492    0x1400 0x3bf0c000   66    (nil)
493    0x1c00 0x3bf0d800 1404 ec041400
494    0x1400 0x3bf0d000   54    (nil)
495    0x1c00 0x3bf0e800 1460 ec0c17c0
496    0x1400 0x3bf0e000   54    (nil)
497    0x1c00 0x3bf0f800  652 ec168ac0
498    0x1400 0x3bf0f000   42    (nil)
499    0x1c00 0x3bf10800 1097 ec0c7f40
500    0x1c00 0x3bf10000   66 ec0c14c0
501    0x1400 0x3bf11800   42    (nil)
502    0x1c00 0x3bf11000 1456 ec0bea00
503    0x1400 0x3bf12800   42    (nil)
504    0x1c00 0x3bf12000 1297 ec0c1640
505    0x1400 0x3bf13800   42    (nil)
506    0x1c00 0x3bf13000  592 ec0427c0
507    0x1400 0x3bf14800   66    (nil)
508    0x1c00 0x3bf14000  708 ec0424c0
509    0x1400 0x3bf15800   42    (nil)
510    0x1c00 0x3bf15000  286 ece4f400
511    0x3c00 0x3bf16800  146 ec04cd00
sched: RT throttling activated
PAX: kworker/0:1:291, uid/euid: 0/0, attempted to access userland memory at 0000002c
Unable to handle kernel NULL pointer dereference at virtual address 0000002c
pgd = c0004000
[0000002c] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 291 Comm: kworker/0:1 Tainted: G        W      3.17.99 #15
Workqueue: events c04097a8
task: ec4b6040 ti: ec4ce000 task.ti: ec4ce000
PC is at fec_enet_timeout_work+0x14/0x170
LR is at mutex_lock+0xc/0x24
pc : [<c04097bc>]    lr : [<c059b8ec>]    psr: 60030013
sp : ec4cfeb0  ip : ed9993c0  fp : 00000008
r10: 00000000  r9 : 00000000  r8 : ec79de1c
r7 : ec4ce020  r6 : ed9993c0  r5 : 00000000  r4 : ecf410c0
r3 : ec4b6040  r2 : ec4cfea8  r1 : 00000000  r0 : c093f390
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5387d  Table: 3c59c04a  DAC: 00000011
Process kworker/0:1 (pid: 291, stack limit = 0xec4ce240)
Stack: (0xec4cfeb0 to 0xec4d0000)
fea0:                                     ed9998c0 ec4b6040 ec4ce010 ecf410c0
fec0: ec79de1c ed9993c0 ec4ce020 ed9a0800 00000000 00000000 00000008 c0138504
fee0: c08328c0 c08328c0 c08328c0 c0942d3e ecf410c0 ed9993c0 ed9993e0 ec4ce018
ff00: ec4ce000 c0942d14 ecf410d8 ecf410c0 00000008 c0138cfc c08328c0 c08328c0
ff20: c09020c0 c0942d3e c0138cb0 ecd24200 00000000 ecf410c0 c0138cb0 00000000
ff40: 00000000 00000000 00000000 c013cd38 ecc83040 00000000 00000000 ecf410c0
ff60: 00000000 00000000 dead4ead ffffffff ffffffff ec4cff74 ec4cff74 00000000
ff80: 00000000 dead4ead ffffffff ffffffff ec4cff90 ec4cff90 00000000 ecd24200
ffa0: c013cc60 00000000 00000000 c0106b70 00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[<c04097bc>] (fec_enet_timeout_work+0x14/0x170) from [<c0138504>] (process_one_work+0x124/0x320)
[<c0138504>] (process_one_work+0x124/0x320) from [<c0138cfc>] (worker_thread+0x4c/0x484)
[<c0138cfc>] (worker_thread+0x4c/0x484) from [<c013cd38>] (kthread+0xd8/0xf0)
[<c013cd38>] (kthread+0xd8/0xf0) from [<c0106b70>] (ret_from_fork+0x14/0x24)
Code: e24dd00c e5105118 e1a08000 eb03216b (e595302c)
---[ end trace 04d865074b481792 ]---
Unable to handle kernel paging request at virtual address ffffffe0
pgd = c0004000
[ffffffe0] *pgd=3efff801, *pte=00000000, *ppte=00000000
Internal error: Oops: 7 [#2] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 291 Comm: kworker/0:1 Tainted: G      D W      3.17.99 #15
task: ec4b6040 ti: ec4ce000 task.ti: ec4ce000
PC is at kthread_data+0x4/0xc
LR is at wq_worker_sleeping+0xc/0xd0
pc : [<c013d2a8>]    lr : [<c01391c0>]    psr: 00030193
sp : ec4cfc10  ip : 00000000  fp : ec4cfc5c
r10: 00000000  r9 : ec4b6340  r8 : c05a37c4
r7 : c090d784  r6 : ec4ce018  r5 : ec4b6040  r4 : 00000000
r3 : 00000000  r2 : 00000020  r1 : 00000000  r0 : ec4b6040
Flags: nzcv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c5387d  Table: 3c59c04a  DAC: 00000011
Process kworker/0:1 (pid: 291, stack limit = 0xec4ce240)
Stack: (0xec4cfc10 to 0xec4d0000)
fc00:                                     ed9998c0 c0598644 ecda0040 ec4f4188
fc20: c08311c0 00000000 c08328c0 c08328c0 c08328c0 c0942d3e ec4cfc38 00000001
fc40: ec4cfa38 ec4cfa38 ec4b6278 ec4b6038 ec4b6278 ecc4bac0 ec4b6040 c0123714
fc60: 0000000b ec4cfc78 ec4ce020 00000001 c0943180 ec4b62c0 ec4cfc78 ec4cfc78
fc80: c064da50 c0916970 c090d408 ec4ce000 0000000b ec4cfd0e 00000001 c064da50
fca0: c0943180 c010b828 ec4ce240 0000000b 60030113 ec4ce000 00000000 60030113
fcc0: c0943180 c090d408 c064da58 ec4ce028 c0916970 00000000 c09450d4 65000001
fce0: 64643432 20633030 30313565 38313135 61316520 30303830 62652030 31323330
fd00: 28206236 35393565 63323033 00002029 00000123 dc8cb363 c0695468 0000002c
fd20: 00000005 ec4ce000 ec4cfe60 00000000 ec4b6390 00000000 00000123 c0594618
fd40: 00000000 0000002c 00000000 ec4cfe60 00000000 00000005 ec4b6040 ec4b6040
fd60: ec4cfe60 c0112240 c09020c0 003b2e02 ed999fc8 c04c1b08 eceb3040 00000005
fd80: 0000002c ec4cfe60 c0916cec ec79de1c 00000000 00000000 00000008 c010039c
fda0: c06a9010 c01245f8 00000001 00000080 00000098 c0831248 00000000 00000000
fdc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
fde0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
fe00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
fe20: 00000000 00000000 00000000 00000000 00000000 00000000 c0327674 c04097bc
fe40: 60030013 ffffffff ec4cfe94 ec79de1c 00000000 00000000 00000008 c010c0b0
fe60: c093f390 00000000 ec4cfea8 ec4b6040 ecf410c0 00000000 ed9993c0 ec4ce020
fe80: ec79de1c 00000000 00000000 00000008 ed9993c0 ec4cfeb0 c059b8ec c04097bc
fea0: 60030013 ffffffff 00000011 c04097bc ed9998c0 ec4b6040 ec4ce010 ecf410c0
fec0: ec79de1c ed9993c0 ec4ce020 ed9a0800 00000000 00000000 00000008 c0138504
fee0: c08328c0 c08328c0 c08328c0 c0942d3e ecf410c0 ed9993c0 ed9993e0 ec4ce018
ff00: ec4ce000 c0942d14 ecf410d8 ecf410c0 00000008 c0138cfc c08328c0 c08328c0
ff20: c09020c0 c0942d3e c0138cb0 ecd24200 00000000 ecf410c0 c0138cb0 00000000
ff40: 00000000 00000000 00000000 c013cd38 ecc83040 00000000 00000000 ecf410c0
ff60: 00000000 00000000 dead4ead ffffffff ffffffff ec4cff74 ec4cff74 00000001
ff80: 00010001 dead4ead ffffffff ffffffff ec4cff90 ec4cff90 00000000 ecd24200
ffa0: c013cc60 00000000 00000000 c0106b70 00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[<c013d2a8>] (kthread_data+0x4/0xc) from [<c01391c0>] (wq_worker_sleeping+0xc/0xd0)
[<c01391c0>] (wq_worker_sleeping+0xc/0xd0) from [<c0598644>] (__schedule+0x32c/0x5b4)
[<c0598644>] (__schedule+0x32c/0x5b4) from [<c0123714>] (do_exit+0x698/0x944)
[<c0123714>] (do_exit+0x698/0x944) from [<c010b828>] (die+0x4b8/0x50c)
[<c010b828>] (die+0x4b8/0x50c) from [<c0594618>] (__do_kernel_fault.part.11+0x254/0x264)
[<c0594618>] (__do_kernel_fault.part.11+0x254/0x264) from [<c0112240>] (do_page_fault+0x14c/0x280)
[<c0112240>] (do_page_fault+0x14c/0x280) from [<c010039c>] (do_DataAbort+0x64/0x1a0)
[<c010039c>] (do_DataAbort+0x64/0x1a0) from [<c010c0b0>] (__dabt_svc+0x70/0xc0)
Exception stack(0xec4cfe60 to 0xec4cfea8)
fe60: c093f390 00000000 ec4cfea8 ec4b6040 ecf410c0 00000000 ed9993c0 ec4ce020
fe80: ec79de1c 00000000 00000000 00000008 ed9993c0 ec4cfeb0 c059b8ec c04097bc
fea0: 60030013 ffffffff
[<c010c0b0>] (__dabt_svc+0x70/0xc0) from [<c04097bc>] (fec_enet_timeout_work+0x14/0x170)
[<c04097bc>] (fec_enet_timeout_work+0x14/0x170) from [<c0138504>] (process_one_work+0x124/0x320)
[<c0138504>] (process_one_work+0x124/0x320) from [<c0138cfc>] (worker_thread+0x4c/0x484)
[<c0138cfc>] (worker_thread+0x4c/0x484) from [<c013cd38>] (kthread+0xd8/0xf0)
[<c013cd38>] (kthread+0xd8/0xf0) from [<c0106b70>] (ret_from_fork+0x14/0x24)
Code: e5130028 e7e00150 e12fff1e e5903290 (e5130020)
---[ end trace 04d865074b481793 ]---
Fixing recursive fault but reboot is needed!
BUG: spinlock lockup suspected on CPU#0, kworker/0:1/291
lock: ed9998c0, .magic: dead4ead, .owner: kworker/0:1/291, .owner_cpu: 0
CPU: 0 PID: 291 Comm: kworker/0:1 Tainted: G      D W      3.17.99 #15
[<c010fdb8>] (unwind_backtrace+0x0/0xfc) from [<c010b36c>] (show_stack+0x10/0x14)
[<c010b36c>] (show_stack+0x10/0x14) from [<c0596ed4>] (dump_stack+0x90/0xc8)
[<c0596ed4>] (dump_stack+0x90/0xc8) from [<c015a624>] (do_raw_spin_lock+0x118/0x18c)
[<c015a624>] (do_raw_spin_lock+0x118/0x18c) from [<c05983a8>] (__schedule+0x90/0x5b4)
[<c05983a8>] (__schedule+0x90/0x5b4) from [<c0123984>] (do_exit+0x908/0x944)
[<c0123984>] (do_exit+0x908/0x944) from [<c010b828>] (die+0x4b8/0x50c)
[<c010b828>] (die+0x4b8/0x50c) from [<c0594618>] (__do_kernel_fault.part.11+0x254/0x264)
[<c0594618>] (__do_kernel_fault.part.11+0x254/0x264) from [<c0112240>] (do_page_fault+0x14c/0x280)
[<c0112240>] (do_page_fault+0x14c/0x280) from [<c010039c>] (do_DataAbort+0x64/0x1a0)
[<c010039c>] (do_DataAbort+0x64/0x1a0) from [<c010c0b0>] (__dabt_svc+0x70/0xc0)
Exception stack(0xec4cfbc0 to 0xec4cfc08)
fbc0: ec4b6040 00000000 00000020 00000000 00000000 ec4b6040 ec4ce018 c090d784
fbe0: c05a37c4 ec4b6340 00000000 ec4cfc5c 00000000 ec4cfc10 c01391c0 c013d2a8
fc00: 00030193 ffffffff
[<c010c0b0>] (__dabt_svc+0x70/0xc0) from [<c013d2a8>] (kthread_data+0x4/0xc)
[<c013d2a8>] (kthread_data+0x4/0xc) from [<c01391c0>] (wq_worker_sleeping+0xc/0xd0)
[<c01391c0>] (wq_worker_sleeping+0xc/0xd0) from [<c0598644>] (__schedule+0x32c/0x5b4)
[<c0598644>] (__schedule+0x32c/0x5b4) from [<c0123714>] (do_exit+0x698/0x944)
[<c0123714>] (do_exit+0x698/0x944) from [<c010b828>] (die+0x4b8/0x50c)
[<c010b828>] (die+0x4b8/0x50c) from [<c0594618>] (__do_kernel_fault.part.11+0x254/0x264)
[<c0594618>] (__do_kernel_fault.part.11+0x254/0x264) from [<c0112240>] (do_page_fault+0x14c/0x280)
[<c0112240>] (do_page_fault+0x14c/0x280) from [<c010039c>] (do_DataAbort+0x64/0x1a0)
[<c010039c>] (do_DataAbort+0x64/0x1a0) from [<c010c0b0>] (__dabt_svc+0x70/0xc0)
Exception stack(0xec4cfe60 to 0xec4cfea8)
fe60: c093f390 00000000 ec4cfea8 ec4b6040 ecf410c0 00000000 ed9993c0 ec4ce020
fe80: ec79de1c 00000000 00000000 00000008 ed9993c0 ec4cfeb0 c059b8ec c04097bc
fea0: 60030013 ffffffff
[<c010c0b0>] (__dabt_svc+0x70/0xc0) from [<c04097bc>] (fec_enet_timeout_work+0x14/0x170)
[<c04097bc>] (fec_enet_timeout_work+0x14/0x170) from [<c0138504>] (process_one_work+0x124/0x320)
[<c0138504>] (process_one_work+0x124/0x320) from [<c0138cfc>] (worker_thread+0x4c/0x484)
[<c0138cfc>] (worker_thread+0x4c/0x484) from [<c013cd38>] (kthread+0xd8/0xf0)
[<c013cd38>] (kthread+0xd8/0xf0) from [<c0106b70>] (ret_from_fork+0x14/0x24)
BUG: spinlock lockup suspected on CPU#3, cron/2100
lock: ed9998c0, .magic: dead4ead, .owner: kworker/0:1/291, .owner_cpu: 0
CPU: 3 PID: 2100 Comm: cron Tainted: G      D W      3.17.99 #15
[<c010fdb8>] (unwind_backtrace+0x0/0xfc) from [<c010b36c>] (show_stack+0x10/0x14)
[<c010b36c>] (show_stack+0x10/0x14) from [<c0596ed4>] (dump_stack+0x90/0xc8)
[<c0596ed4>] (dump_stack+0x90/0xc8) from [<c015a624>] (do_raw_spin_lock+0x118/0x18c)
[<c015a624>] (do_raw_spin_lock+0x118/0x18c) from [<c01465f0>] (wake_up_new_task+0xc0/0x170)
[<c01465f0>] (wake_up_new_task+0xc0/0x170) from [<c011fe18>] (do_fork+0x128/0x38c)
[<c011fe18>] (do_fork+0x128/0x38c) from [<c0106a60>] (ret_fast_syscall+0x0/0x70)
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:1:1015]
Modules linked in:
CPU: 1 PID: 1015 Comm: kworker/1:1 Tainted: G      D W      3.17.99 #15
Workqueue: events c048fbd0
task: ec5eeac0 ti: ec772000 task.ti: ec772000
PC is at smp_call_function_many+0x228/0x298
LR is at smp_call_function_many+0x200/0x298
pc : [<c01826f4>]    lr : [<c01826cc>]    psr: 20010013
sp : ec773ce8  ip : 00000000  fp : 00000004
r10: c090d784  r9 : c0832f40  r8 : ec773d9c
r7 : c090d784  r6 : ed9a3f80  r5 : ed9a3f84  r4 : c090d4f0
r3 : 00000001  r2 : 00000000  r1 : ed99c3c0  r0 : 00000000
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5387d  Table: 3c27c04a  DAC: 00000011
CPU: 1 PID: 1015 Comm: kworker/1:1 Tainted: G      D W      3.17.99 #15
Workqueue: events c048fbd0
[<c010fdb8>] (unwind_backtrace+0x0/0xfc) from [<c010b36c>] (show_stack+0x10/0x14)
[<c010b36c>] (show_stack+0x10/0x14) from [<c0596ed4>] (dump_stack+0x90/0xc8)
[<c0596ed4>] (dump_stack+0x90/0xc8) from [<c0198f2c>] (watchdog_timer_fn+0x1b0/0x214)
[<c0198f2c>] (watchdog_timer_fn+0x1b0/0x214) from [<c016e878>] (__run_hrtimer.isra.34+0x44/0xd4)
[<c016e878>] (__run_hrtimer.isra.34+0x44/0xd4) from [<c016ef80>] (hrtimer_interrupt+0x108/0x294)
[<c016ef80>] (hrtimer_interrupt+0x108/0x294) from [<c010f290>] (twd_handler+0x30/0x40)
[<c010f290>] (twd_handler+0x30/0x40) from [<c0163100>] (handle_percpu_devid_irq+0x6c/0x84)
[<c0163100>] (handle_percpu_devid_irq+0x6c/0x84) from [<c015f5f4>] (generic_handle_irq+0x2c/0x3c)
[<c015f5f4>] (generic_handle_irq+0x2c/0x3c) from [<c015f8a8>] (__handle_domain_irq+0x5c/0xa0)
[<c015f8a8>] (__handle_domain_irq+0x5c/0xa0) from [<c0100780>] (gic_handle_irq+0x24/0x5c)
[<c0100780>] (gic_handle_irq+0x24/0x5c) from [<c010c178>] (__irq_svc+0x78/0xd8)
Exception stack(0xec773c98 to 0xec773ce0)
3c80:                                                       00000000 ed99c3c0
3ca0: 00000000 00000001 c090d4f0 ed9a3f84 ed9a3f80 c090d784 ec773d9c c0832f40
3cc0: c090d784 00000004 00000000 ec773ce8 c01826cc c01826f4 20010013 ffffffff
[<c010c178>] (__irq_svc+0x78/0xd8) from [<c01826f4>] (smp_call_function_many+0x228/0x298)
[<c01826f4>] (smp_call_function_many+0x228/0x298) from [<c01827a8>] (smp_call_function+0x44/0x70)
[<c01827a8>] (smp_call_function+0x44/0x70) from [<c01827fc>] (on_each_cpu+0x28/0x70)
[<c01827fc>] (on_each_cpu+0x28/0x70) from [<c010f2c8>] (twd_rate_change+0x28/0x30)
[<c010f2c8>] (twd_rate_change+0x28/0x30) from [<c013daa0>] (notifier_call_chain+0x44/0x84)
[<c013daa0>] (notifier_call_chain+0x44/0x84) from [<c013e098>] (__srcu_notifier_call_chain+0x44/0x60)
[<c013e098>] (__srcu_notifier_call_chain+0x44/0x60) from [<c013e0cc>] (srcu_notifier_call_chain+0x18/0x20)
[<c013e0cc>] (srcu_notifier_call_chain+0x18/0x20) from [<c04a3684>] (__clk_notify+0x70/0x78)
[<c04a3684>] (__clk_notify+0x70/0x78) from [<c04a3720>] (__clk_recalc_rates+0x94/0x98)
[<c04a3720>] (__clk_recalc_rates+0x94/0x98) from [<c04a36f8>] (__clk_recalc_rates+0x6c/0x98)
Kernel panic - not syncing: softlockup: hung tasks
CPU2: stopping
CPU: 2 PID: 0 Comm: swapper/2 Tainted: G      D W    L 3.17.99 #15
[<c010fdb8>] (unwind_backtrace+0x0/0xfc) from [<c010b36c>] (show_stack+0x10/0x14)
[<c010b36c>] (show_stack+0x10/0x14) from [<c0596ed4>] (dump_stack+0x90/0xc8)
[<c0596ed4>] (dump_stack+0x90/0xc8) from [<c010e820>] (handle_IPI+0x144/0x158)
[<c010e820>] (handle_IPI+0x144/0x158) from [<c01007b4>] (gic_handle_irq+0x58/0x5c)
[<c01007b4>] (gic_handle_irq+0x58/0x5c) from [<c010c178>] (__irq_svc+0x78/0xd8)
Exception stack(0xeccb5f98 to 0xeccb5fe0)
5f80:                                                       ed9ac2c0 00000000
5fa0: 019a3f20 c01163c0 eccb4000 c090d46c c090d424 c0942d45 c059feac 00000001
5fc0: c0942d45 00000000 01000000 eccb5fe8 c010766c c0107670 600f0013 ffffffff
[<c010c178>] (__irq_svc+0x78/0xd8) from [<c0107670>] (arch_cpu_idle+0x38/0x3c)
[<c0107670>] (arch_cpu_idle+0x38/0x3c) from [<c015756c>] (cpu_startup_entry+0xfc/0x148)
[<c015756c>] (cpu_startup_entry+0xfc/0x148) from [<10100844>] (0x10100844)
SMP: failed to stop secondary CPUs
---[ end Kernel panic - not syncing: softlockup: hung tasks

_________________
Developer of ImageUltracopier/ImageSupercopier and of the game ImageCatchChallenger


Tue May 12, 2015 7:04 am
Profile

Joined: Thu Aug 20, 2015 6:18 pm
Posts: 1
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
I have a workaround for the problem. It is not the most elegant solution, but it works well. All I did was added a USB Ethernet adapter to the Utilite, created a udev rule to assign the network cards in the order I want. Onboard Eth0 is WAN, USB Eth1 is LAN, Onboard Eth1 (problematic ethernet) is now eth2 and disconnected.

Since it seems that there is an issue with interupts on the PCIe bus. So by adding a USB ethernet adapter, I am no longer using the PCIe bus which resolved the issue. This is a lot better and cheaper alternative than giving up on the Utilite as a router. I was very close to buying different hardware until I realized I can just go through the USB bus instead. Hope this helps someone, as it worked well for me.


Thu Aug 20, 2015 6:25 pm
Profile

Joined: Thu Feb 06, 2014 10:59 pm
Posts: 25
Post Re: Utilite eth1 intel igb Detected Tx Unit Hang
Here the fix into the kernel 4.1 improve greatly the situation.
I have too reconfigured my kernel in full PREAMPT.
Is not ok, but it's better. Continue to hang.

_________________
Developer of ImageUltracopier/ImageSupercopier and of the game ImageCatchChallenger


Thu Aug 20, 2015 6:44 pm
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