Total freeze on Udoo quad

Hello,

I have an issue with the Udoo board. It's a Udoo quad, the system is the once downloaded on this site : debian wheezy armHF for udoo quad.

The issue is that the system freezes frequently, when I'm using it. Often, iceweasel is open but sometimes, only the terminal is running, with no command executed, and it still freezing.

And it's really often, I can't use the system more of 15 minutes without freeze, and sometimes it occurs after only 3 minutes.

When it freezes, all the sytem is "desabled", not responding at keyborad and mouse. I can do nothing and I must reset the board pressing the hardware button.

Is there an explanation or a solution for this issue ?

Thanks in advance.

 

Hello

It seams that Android have no freezes, even after 2 hours of using.

I used also Ubuntu 12.04 LTS found on this site and it freeze frequently like the Debian.

 

Hello

IS there a progress about this issue ?

It's a real problem for me and I need to know if I can use the board in my project. For now, I can't.

Thanks.

 

Hi,

Have you this freeze with ubuntu 11.10? Can you try it?

 

Hi,

So, I tested some systems, all downloaded from this site :

- Ubuntu 12.04
- Ubuntu 11.10
- Debian Wheezy armHF
- Ubuntu Studio 12.04 armHF
- Non-official Debian Wheezy Softfloat with LXDE and Vivante graphical acceleration

For all of that, I have this freeze.

 

Hi,

Which is your uboot version?

Which is the result of this command?

Code:

root@udoo# free

Thank you!

 

Hi,

Here the result of the free command :

total used free shared buffers cached
Mem: 896072 453164 442908 0 18988 168468
-/+ buffers/cache: 265708 630364
Swap: 0 0 0

I don't know how I can have the version of the uboot.

Also, I spent weeks on that and I have no more time to debug a board. I tested five systems on it, an all freezes, so I consider that the boar d is defaulting. Is there an after sales service that I can contact to proceed an exchange and obtain the fonctionnal board I need ?

Thanks.

 

Hlodwig & support:

I'm also seeing problems which may be the same. I'm running a recently delivered UDOO Quad (PN: S975-G000-2100-C2, S/N 13461948) as a headless system on my wired LAN. It regularlly (about one or twice a day randomly) becomes non-response and I need to reset, or cycle power to it. I'm usually only running an ssh terminal to it from my Linux laptop. This was really bad under Debian Wheezy, and less so under Ubuntu 12 (both downloaded from Udoo site). I have found no problems in system logs to tell me what's going on and since I'm running headless I can't tell if its a complete freeze or just an Ethernet problem.

This is frustrating as I don't know if I have a hardware problem that needs warrenty service, or a software issue. I have a 32 GB SD. Any help to debug this??

 

I hooked up a debug console. I had also installed motion and a usb webcam.

Here's the kernel oops I'm getting. (i'll try to remove motion and unpluf the webcam to see if proble persists.
The serial debug console seems to be useful, but difficult to interpret


[ 7236.406852] Unable to handle kernel paging request at virtual address 200f0013
[ 7236.414097] pgd = baa10000
[ 7236.416815] [200f0013] *pgd=00000000
[ 7236.420422] Internal error: Oops: 801 [#1] PREEMPT SMP
[ 7236.425574] Modules linked in: vivante drm
[ 7236.429737] CPU: 0 Not tainted (3.0.35 #1)
[ 7236.434225] PC is at clk_debug_rate_get+0x10/0x1c
[ 7236.438956] LR is at _clk_arm_get_rate+0x24/0x28
[ 7236.443592] pc : [<8005ff2c>] lr : [<80055188>] psr: 600f0093
[ 7236.443602] sp : bffb1d98 ip : 00000080 fp : 80595c74
[ 7236.455105] r10: bffb1e8c r9 : bffb1e8c r8 : 80595c64
[ 7236.460343] r7 : bffb1dc4 r6 : 80045e50 r5 : 600f0013 r4 : 200f0013
[ 7236.466885] r3 : 00000000 r2 : 00000000 r1 : 00000001 r0 : 179a7b00
[ 7236.473433] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment ker nel
[ 7236.480846] Control: 10c53c7d Table: 4aa1004a DAC: 00000015
[ 7236.486606] Process kworker/0:0 (pid: 3840, stack limit = 0xbffb02f0)
[ 7236.493061] Stack: (0xbffb1d98 to 0xbffb2000)
[ 7236.497434] 1d80: 80b99 7e8 80053c20
[ 7236.505637] 1da0: 80b997e8 8005ff10 80b997e8 80045e64 00000000 800a2a78 0011e dd8 80289e2c
[ 7236.513837] 1dc0: bff28000 00000000 00000000 00000000 00000000 00000000 00000 000 ffffffff
[ 7236.522038] 1de0: 00000000 00000001 bffb1e8c 80b83914 bffb1e8c 80045e40 fffff fff 8009340c
[ 7236.530239] 1e00: 80bbb59c 80bbb584 00000000 00000001 ffffffff 80093598 00000 000 8006301c
[ 7236.538440] 1e20: ffffffff bffb1e8c bfcd7480 00000000 80037000 80b49ab4 80b49 af4 800935cc
[ 7236.546641] 1e40: 00000000 00000004 80b99fbc 803ca6c0 00000001 00000004 00000 004 80063424
[ 7236.554841] 1e60: bffb1e9c 80077c44 00001c44 00000000 00000000 00000004 00000 003 00000003
[ 7236.563042] 1e80: 964f3484 80077c04 8c020568 00000000 000f32a0 00060ae0 bfcd7 401 00000002
[ 7236.571243] 1ea0: bfcd7480 80b49ab8 bfcd7480 80b839f4 000f32a0 00000004 00000 003 80b49af4
[ 7236.579444] 1ec0: 00a72ce0 803c9980 80b839f4 803cce2c 00000001 0bfe9000 00000 000 00000000
[ 7236.587645] 1ee0: 00a72ce0 8c008c98 00000000 00000000 00000000 80037f40 80037 1c0 8c008d04
[ 7236.595845] 1f00: 80037f40 800371b4 000a95c4 000a95c4 00000000 800371c0 00000 000 a00f0013
[ 7236.604046] 1f20: af4f7f60 00000001 ffffffff b9f86f40 8c0082e0 8c00c500 00000 000 803cc9ac
[ 7236.612247] 1f40: 8c008cbc 8c00c505 00000009 80089b4c 80b49c88 00000001 00000 000 b9f86f40
[ 7236.620447] 1f60: 8c0082e0 8c0082e8 b9f86f50 80b49c88 80038400 bffb0000 00000 009 8008a22c
[ 7236.628649] 1f80: 00000013 bf861ef8 b9f86f50 80038400 80038400 80038400 bffb1 fbc bf861ee8
[ 7236.636849] 1fa0: bffb1fcc b9f86f40 8008a0e4 00000000 00000000 00000000 00000 000 8008dd1c
[ 7236.645049] 1fc0: bf861ee8 00000000 b9f86f40 00000000 00000000 00000000 bffb1 fd8 bffb1fd8
[ 7236.653250] 1fe0: 00000000 bf861ee8 8008dc98 80040080 00000013 80040080 4fffc 811 4fffcc11
[ 7236.661472] [<8005ff2c>] (clk_debug_rate_get+0x10/0x1c) from [<80053c20>] (_c lk_twd_get_rate+0xc/0x14)
[ 7236.670814] [<80053c20>] (_clk_twd_get_rate+0xc/0x14) from [<8005ff10>] (clk_ get_rate+0x34/0x40)
[ 7236.679635] [<8005ff10>] (clk_get_rate+0x34/0x40) from [<80045e64>] (twd_upda te_frequency+0x14/0x48)
[ 7236.688815] [<80045e64>] (twd_update_frequency+0x14/0x48) from [<800a2a78>] ( smp_call_function_single+0x9c/0x1f4)
[ 7236.699111] [<800a2a78>] (smp_call_function_single+0x9c/0x1f4) from [<80045e4 0>] (twd_cpufreq_transition+0x48/0x58)
[ 7236.709586] [<80045e40>] (twd_cpufreq_transition+0x48/0x58) from [<8009340c>] (notifier_call_chain+0x44/0x84)
[ 7236.719535] [<8009340c>] (notifier_call_chain+0x44/0x84) from [<80093598>] (_ _srcu_notifier_call_chain+0x44/0x60)
[ 7236.729829] [<80093598>] (__srcu_notifier_call_chain+0x44/0x60) from [<800935 cc>] (srcu_notifier_call_chain+0x18/0x20)
[ 7236.740576] [<800935cc>] (srcu_notifier_call_chain+0x18/0x20) from [<803ca6c0 >] (cpufreq_notify_transition+0xa0/0xe0)
[ 7236.751222] [<803ca6c0>] (cpufreq_notify_transition+0xa0/0xe0) from [<8006342 4>] (mxc_set_target+0x1b4/0x2b4)
[ 7236.761171] [<80063424>] (mxc_set_target+0x1b4/0x2b4) from [<803c9980>] (__cp ufreq_driver_target+0x54/0x60)
[ 7236.770947] [<803c9980>] (__cpufreq_driver_target+0x54/0x60) from [<803cce2c> ] (do_dbs_timer+0x480/0x498)
[ 7236.780548] [<803cce2c>] (do_dbs_timer+0x480/0x498) from [<80089b4c>] (proces s_one_work+0x108/0x3e4)
[ 7236.789712] [<80089b4c>] (process_one_work+0x108/0x3e4) from [<8008a22c>] (wo rker_thread+0x148/0x450)
[ 7236.798966] [<8008a22c>] (worker_thread+0x148/0x450) from [<8008dd1c>] (kthre ad+0x84/0x8c)
[ 7236.807270] [<8008dd1c>] (kthread+0x84/0x8c) from [<80040080>] (kernel_thread _exit+0x0/0x8)
[ 7236.815647] Code: e92d4010 e1a04001 ebffffec e3a03000 (e8840009)
[ 7236.830281] uvcvideo: Failed to resubmit video URB (-27).
[ 7236.835929] uvcvideo: Failed to resubmit video URB (-27).
[ 7236.841485] uvcvideo: Failed to resubmit video URB (-27).
[ 7236.847197] ---[ end trace d02602d85dc53839 ]---
[ 7236.851855] note: kworker/0:0[3840] exited with preempt_count 1
[ 7236.857869] Unable to handle kernel paging request at virtual address fffffff c
[ 7236.865111] pgd = 80004000
[ 7236.867830] [fffffffc] *pgd=4fffe821, *pte=00000000, *ppte=00000000
[ 7236.874165] Internal error: Oops: 17 [#2] PREEMPT SMP
[ 7236.879230] Modules linked in: vivante drm
[ 7236.883397] CPU: 0 Tainted: G D (3.0.35 #1)
[ 7236.888741] PC is at kthread_data+0x4/0xc
[ 7236.892769] LR is at wq_worker_sleeping+0xc/0xd0
[ 7236.897408] pc : [<8008d8e4>] lr : [<80089174>] psr: 200f0193
[ 7236.897418] sp : bffb1ad0 ip : 00000000 fp : bffb1b84
[ 7236.908921] r10: ba74a978 r9 : ba74a8fc r8 : bffb1ba4
[ 7236.914160] r7 : bffb0000 r6 : ba74a7e0 r5 : 00000000 r4 : 00000000
[ 7236.920702] r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : ba74a7e0
[ 7236.927248] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment use r
[ 7236.934488] Control: 10c53c7d Table: 4aa1004a DAC: 00000015
[ 7236.940248] Process kworker/0:0 (pid: 3840, stack limit = 0xbffb02f0)
[ 7236.946704] Stack: (0xbffb1ad0 to 0xbffb2000)
[ 7236.951081] 1ac0: 8c008f40 8059153c 8bf53 800 800ee3bc
[ 7236.959285] 1ae0: 8bf4e000 00001060 ba9c75c4 80b49c88 00000001 80b9a820 0bfd1 000 80037f40
[ 7236.967487] 1b00: 80037f40 800757e0 80037f40 800371b4 bfecbb80 ba9c75c4 00200 200 00000001
[ 7236.975689] 1b20: ba74a7e0 ba74a7e0 ba9c75c4 8007583c 00000001 bffb0000 00000 000 ba9c70c0
[ 7236.983891] 1b40: ba74a7e0 ba74ab24 ba74a7e8 80037260 00000000 bffb0000 00000 000 00000000
[ 7236.992092] 1b60: bffb1b60 ba74a7e0 ffffffff 00000000 bff8c000 bffb1ba4 ba74a 8fc ba74a8fc
[ 7237.000293] 1b80: ba74a8fc 80076b88 00000000 bffb1b9c 80b5a414 00000001 8005f f30 bffb1b9c
[ 7237.008494] 1ba0: bffb1b9c ba74a944 bffb1c17 bffb0000 00000000 00000001 8005f f2e bffb1c17
[ 7237.016695] 1bc0: 8005ff30 00000000 bffb1be8 8004307c bffb02f0 0000000b 00000 002 00000000
[ 7237.024896] 1be0: 00000000 00000008 64323965 30313034 61316520 30303430 62652 031 66666666
[ 7237.033098] 1c00: 65206365 33306133 20303030 38386528 30303034 00202939 00000 000 00000801
[ 7237.041298] 1c20: 00000000 bffb1d50 200f0013 00000000 00000801 ba45cea0 00000 000 00000801
[ 7237.049500] 1c40: 00000000 80049dd4 bffb1d50 8005ff2c e8840009 80b99a18 200f0 013 8004b804
[ 7237.057700] 1c60: 00000000 bffece80 bffb1d80 00000002 bffb1d88 00000004 00000 000 00000000
[ 7237.065902] 1c80: 00000000 00000000 00000000 00000801 80b4d780 200f0013 bffb1 d50 80595c64
[ 7237.074102] 1ca0: 200f0193 bffb1e8c 80595c74 80039400 00000000 80037f40 bffc1 820 00000000
[ 7237.082303] 1cc0: bffc1820 00000000 00001000 00000000 00000000 00000000 00000 000 00000001
[ 7237.090503] 1ce0: 00000000 00000000 00000000 00000000 00000000 00000000 00000 000 00000000
[ 7237.098702] 1d00: 00000000 00000000 00000000 00000000 00000000 00000001 00000 001 00000001
[ 7237.106903] 1d20: 00000000 00000001 00000000 8c008f40 00000000 ba74a7e0 bffb0 000 0000040f
[ 7237.115104] 1d40: 00000001 80045e50 bffb1dc4 8003ef50 179a7b00 00000001 00000 000 00000000
[ 7237.123305] 1d60: 200f0013 600f0013 80045e50 bffb1dc4 80595c64 bffb1e8c bffb1 e8c 80595c74
[ 7237.131508] 1d80: 00000080 bffb1d98 80055188 8005ff2c 600f0093 ffffffff 80b99 7e8 80053c20
[ 7237.139710] 1da0: 80b997e8 8005ff10 80b997e8 80045e64 00000000 800a2a78 0011e dd8 80289e2c
[ 7237.147910] 1dc0: bff28000 00000000 00000000 00000000 00000000 00000000 00000 000 ffffffff
[ 7237.156112] 1de0: 00000000 00000001 bffb1e8c 80b83914 bffb1e8c 80045e40 fffff fff 8009340c
[ 7237.164312] 1e00: 80bbb59c 80bbb584 00000000 00000001 ffffffff 80093598 00000 000 8006301c
[ 7237.172514] 1e20: ffffffff bffb1e8c bfcd7480 00000000 80037000 80b49ab4 80b49 af4 800935cc
[ 7237.180714] 1e40: 00000000 00000004 80b99fbc 803ca6c0 00000001 00000004 00000 004 80063424
[ 7237.188914] 1e60: bffb1e9c 80077c44 00001c44 00000000 00000000 00000004 00000 003 00000003
[ 7237.197115] 1e80: 964f3484 80077c04 8c020568 00000000 000f32a0 00060ae0 bfcd7 401 00000002
[ 7237.205316] 1ea0: bfcd7480 80b49ab8 bfcd7480 80b839f4 000f32a0 00000004 00000 003 80b49af4
[ 7237.213518] 1ec0: 00a72ce0 803c9980 80b839f4 803cce2c 00000001 0bfe9000 00000 000 00000000
[ 7237.221718] 1ee0: 00a72ce0 8c008c98 00000000 00000000 00000000 80037f40 80037 1c0 8c008d04
[ 7237.229919] 1f00: 80037f40 800371b4 000a95c4 000a95c4 00000000 800371c0 00000 000 a00f0013
[ 7237.238120] 1f20: af4f7f60 00000001 ffffffff b9f86f40 8c0082e0 8c00c500 00000 000 803cc9ac
[ 7237.246321] 1f40: 8c008cbc 8c00c505 00000009 80089b4c 80b49c88 00000001 00000 000 b9f86f40
[ 7237.254522] 1f60: 8c0082e0 8c0082e8 b9f86f50 80b49c88 80038400 bffb0000 00000 009 8008a22c
[ 7237.262724] 1f80: 00000013 bf861ef8 b9f86f50 80038400 80038400 80038400 bffb1 fbc bf861ee8
[ 7237.270924] 1fa0: bffb1fcc b9f86f40 8008a0e4 00000000 00000000 00000000 00000 000 8008dd1c
[ 7237.279126] 1fc0: bf861ee8 00000000 b9f86f40 00000001 00000000 00000000 bffb1 fd8 bffb1fd8
[ 7237.287327] 1fe0: 00000000 bf861ee8 8008dc98 80040080 00000013 80040080 4fffc 811 4fffcc11
[ 7237.295548] [<8008d8e4>] (kthread_data+0x4/0xc) from [<80089174>] (wq_worker_ sleeping+0xc/0xd0)
[ 7237.304299] [<80089174>] (wq_worker_sleeping+0xc/0xd0) from [<8059153c>] (__s chedule+0x364/0x688)
[ 7237.313216] [<8059153c>] (__schedule+0x364/0x688) from [<80076b88>] (do_exit+ 0x4e4/0x718)
[ 7237.321439] [<80076b88>] (do_exit+0x4e4/0x718) from [<8004307c>] (die+0x250/0 x2c8)
[ 7237.329052] [<8004307c>] (die+0x250/0x2c8) from [<80049dd4>] (__do_kernel_fau lt+0x64/0x84)
[ 7237.337354] [<80049dd4>] (__do_kernel_fault+0x64/0x84) from [<8004b804>] (do_ alignment+0x68/0x730)
[ 7237.346362] [<8004b804>] (do_alignment+0x68/0x730) from [<80039400>] (do_Data Abort+0x34/0x98)
[ 7237.354922] [<80039400>] (do_DataAbort+0x34/0x98) from [<8003ef50>] (__dabt_s vc+0x70/0xa0)
[ 7237.363205] Exception stack(0xbffb1d50 to 0xbffb1d98)
[ 7237.368274] 1d40: 179a7b00 00000001 00000 000 00000000
[ 7237.376477] 1d60: 200f0013 600f0013 80045e50 bffb1dc4 80595c64 bffb1e8c bffb1 e8c 80595c74
[ 7237.384676] 1d80: 00000080 bffb1d98 80055188 8005ff2c 600f0093 ffffffff
[ 7237.391338] [<8003ef50>] (__dabt_svc+0x70/0xa0) from [<8005ff2c>] (clk_debug_ rate_get+0x10/0x1c)
[ 7237.400162] [<8005ff2c>] (clk_debug_rate_get+0x10/0x1c) from [<80053c20>] (_c lk_twd_get_rate+0xc/0x14)
[ 7237.409500] [<80053c20>] (_clk_twd_get_rate+0xc/0x14) from [<8005ff10>] (clk_ get_rate+0x34/0x40)
[ 7237.418317] [<8005ff10>] (clk_get_rate+0x34/0x40) from [<80045e64>] (twd_upda te_frequency+0x14/0x48)
[ 7237.427495] [<80045e64>] (twd_update_frequency+0x14/0x48) from [<800a2a78>] ( smp_call_function_single+0x9c/0x1f4)
[ 7237.437793] [<800a2a78>] (smp_call_function_single+0x9c/0x1f4) from [<80045e4 0>] (twd_cpufreq_transition+0x48/0x58)
[ 7237.448267] [<80045e40>] (twd_cpufreq_transition+0x48/0x58) from [<8009340c>] (notifier_call_chain+0x44/0x84)
[ 7237.458217] [<8009340c>] (notifier_call_chain+0x44/0x84) from [<80093598>] (_ _srcu_notifier_call_chain+0x44/0x60)
[ 7237.468513] [<80093598>] (__srcu_notifier_call_chain+0x44/0x60) from [<800935 cc>] (srcu_notifier_call_chain+0x18/0x20)
[ 7237.479259] [<800935cc>] (srcu_notifier_call_chain+0x18/0x20) from [<803ca6c0 >] (cpufreq_notify_transition+0xa0/0xe0)
[ 7237.489908] [<803ca6c0>] (cpufreq_notify_transition+0xa0/0xe0) from [<8006342 4>] (mxc_set_target+0x1b4/0x2b4)
[ 7237.499857] [<80063424>] (mxc_set_target+0x1b4/0x2b4) from [<803c9980>] (__cp ufreq_driver_target+0x54/0x60)
[ 7237.509632] [<803c9980>] (__cpufreq_driver_target+0x54/0x60) from [<803cce2c> ] (do_dbs_timer+0x480/0x498)
[ 7237.519233] [<803cce2c>] (do_dbs_timer+0x480/0x498) from [<80089b4c>] (proces s_one_work+0x108/0x3e4)
[ 7237.528397] [<80089b4c>] (process_one_work+0x108/0x3e4) from [<8008a22c>] (wo rker_thread+0x148/0x450)
[ 7237.537650] [<8008a22c>] (worker_thread+0x148/0x450) from [<8008dd1c>] (kthre ad+0x84/0x8c)
[ 7237.545948] [<8008dd1c>] (kthread+0x84/0x8c) from [<80040080>] (kernel_thread _exit+0x0/0x8)
[ 7237.554326] Code: e593316c e5130008 e12fff1e e590316c (e5130004)

 

I have a new board with Ubuntu 12.04. Any update on this? are there some bad boards? other issues?

 

I'm seeing the same issue. I had this occur when logging into the serial port side (also locked up vmc session that I was also using)

Code:

[  940.325771] Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP
[  940.332831] Modules linked in: vivante drm ipv6
[  940.337422] CPU: 0    Not tainted  (3.0.35 #7)
[  940.341883] PC is at clockevent_delta2ns+0x1c/0x94
[  940.346681] LR is at clockevents_config+0x5c/0x78
[  940.351392] pc : [<8009ee2c>]    lr : [<8009ef00>]    psr: 800f0093
[  940.351397] sp : bffa9d68  ip : 00000000  fp : 80663754
[  940.362888] r10: bffa9e8c  r9 : bffa9e8c  r8 : 80663744
[  940.368116] r7 : 8c008040  r6 : 80000000  r5 : ffffffff  r4 : 32b020c5
[  940.374647] r3 : 00000001  r2 : 32b020c5  r1 : 8c008040  r0 : 0000000f
[  940.381181] Flags: Nzcv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[  940.388581] Control: 10c53c7d  Table: 4116804a  DAC: 00000015
[  940.394331] Process kworker/0:2 (pid: 3946, stack limit = 0xbffa82f0)
[  940.400777] Stack: (0xbffa9d68 to 0xbffaa000)
[  940.405141] 9d60:                   179a7b00 8c008040 80046e70 bffa9dc4 80663744 8009ef00
[  940.413327] 9d80: 0000000a 80060f58 00000000 8c008040 600f0013 8009ef2c 80cb4f28 80054c40
[  940.421513] 9da0: 80cb4f28 80060f58 80cb4f28 00000000 600f0013 800a57d8 0011edd8 802c4c10
[  940.429697] 9dc0: bfe7c200 00000000 00000000 00000000 00000000 00000000 2f34f600 ffffffff
[  940.437882] 9de0: 00000000 00000001 bffa9e8c 80c9f664 bffa9e8c 80046e60 ffffffff 80095df8
[  940.446066] 9e00: 80cd91ec 80cd91d4 00000000 00000001 ffffffff 80095f84 00000000 80064064
[  940.454251] 9e20: ffffffff bffa9e8c bfc7f3c0 00000000 80038000 80c5db14 80c5db54 80095fb8
[  940.462436] 9e40: 00000000 00000004 80cb56fc 8048fb50 00000001 00000004 00000004 8006446c
[  940.470620] 9e60: bffa9e9c 8007a61c 000003ac 00000000 00000000 00000004 00000003 00000003
[  940.478805] 9e80: 3719ca67 8007a5dc 8c020568 00000000 000f32a0 000c15c0 bfc7f401 00000001
[  940.486989] 9ea0: bfc7f3c0 80c5db18 bfc7f3c0 80c9f744 000f32a0 00000004 00000243 80c5db54
[  940.495175] 9ec0: 03fa3fe0 8048ee10 80c9f744 804922bc 00000000 0bfe8000 bfc86580 8c008f40
[  940.503359] 9ee0: 03fa3fe0 8c008c98 bfc86580 00000000 00000001 80038f40 800381c0 8c008d04
[  940.511544] 9f00: 80038f40 800381b4 600f0013 00000000 00000000 800381c0 bfef9e80 bfbefe98
[  940.519729] 9f20: 3808a2ba 00000000 bfbefe98 ba0b8080 8c0082e0 8c00c500 00000000 80491e3c
[  940.527913] 9f40: 8c008cbc 8c00c505 00000009 8008c538 80c5dcf0 00000001 00000000 ba0b8080
[  940.536099] 9f60: 8c0082e0 8c0082e8 ba0b8090 80c5dcf0 80039440 bffa8000 00000009 8008cc18
[  940.544284] 9f80: 00000013 bf8afef8 ba0b8090 80039440 80039440 80039440 bffa9fbc bf8afee8
[  940.552468] 9fa0: bffa9fcc ba0b8080 8008cad0 00000000 00000000 00000000 00000000 80090708
[  940.560653] 9fc0: bf8afee8 00000000 ba0b8080 00000000 00000000 00000000 bffa9fd8 bffa9fd8
[  940.568838] 9fe0: 00000000 bf8afee8 80090684 80041080 00000013 80041080 f2f2f2f2 f2f2f2f2
[  940.577033] [<8009ee2c>] (clockevent_delta2ns+0x1c/0x94) from [<8009ef00>] (clockevents_config+0x5c/0x78)
[  940.586612] [<8009ef00>] (clockevents_config+0x5c/0x78) from [<8009ef2c>] (clockevents_update_freq+0x10/0x48)
[  940.596545] [<8009ef2c>] (clockevents_update_freq+0x10/0x48) from [<800a57d8>] (smp_call_function_single+0x9c/0x1f4)
[  940.607082] [<800a57d8>] (smp_call_function_single+0x9c/0x1f4) from [<80046e60>] (twd_cpufreq_transition+0x48/0x58)
[  940.617537] [<80046e60>] (twd_cpufreq_transition+0x48/0x58) from [<80095df8>] (notifier_call_chain+0x44/0x84)
[  940.627466] [<80095df8>] (notifier_call_chain+0x44/0x84) from [<80095f84>] (__srcu_notifier_call_chain+0x44/0x60)
[  940.637740] [<80095f84>] (__srcu_notifier_call_chain+0x44/0x60) from [<80095fb8>] (srcu_notifier_call_chain+0x18/0x20)
[  940.648455] [<80095fb8>] (srcu_notifier_call_chain+0x18/0x20) from [<8048fb50>] (cpufreq_notify_transition+0xa0/0xe0)
[  940.659081] [<8048fb50>] (cpufreq_notify_transition+0xa0/0xe0) from [<8006446c>] (mxc_set_target+0x1b4/0x2b4)
[  940.669007] [<8006446c>] (mxc_set_target+0x1b4/0x2b4) from [<8048ee10>] (__cpufreq_driver_target+0x54/0x60)
[  940.678763] [<8048ee10>] (__cpufreq_driver_target+0x54/0x60) from [<804922bc>] (do_dbs_timer+0x480/0x498)
[  940.688345] [<804922bc>] (do_dbs_timer+0x480/0x498) from [<8008c538>] (process_one_work+0x108/0x3e4)
[  940.697489] [<8008c538>] (process_one_work+0x108/0x3e4) from [<8008cc18>] (worker_thread+0x148/0x450)
[  940.706723] [<8008cc18>] (worker_thread+0x148/0x450) from [<80090708>] (kthread+0x84/0x8c)
[  940.715005] [<80090708>] (kthread+0x84/0x8c) from [<80041080>] (kernel_thread_exit+0x0/0x8)
[  940.723365] Code: e1a07001 e2565020 e2663020 e1a06610 (f1a05510)
[  940.729512] ---[ end trace 9f421166ac808e01 ]---
[  940.734174] note: kworker/0:2[3946] exited with preempt_count 1
[  940.740220] Unable to handle kernel paging request at virtual address fffffffc
[  940.747449] pgd = 80004000
[  940.750160] [fffffffc] *pgd=4fffe821, *pte=00000000, *ppte=00000000
[  940.756472] Internal error: Oops: 17 [#2] PREEMPT SMP
[  940.761526] Modules linked in: vivante drm ipv6
[  940.766115] CPU: 0    Tainted: G      D      (3.0.35 #7)
[  940.771442] PC is at kthread_data+0x4/0xc
[  940.775458] LR is at wq_worker_sleeping+0xc/0xd0
[  940.780081] pc : [<800902d0>]    lr : [<8008bb60>]    psr: 200f0093
[  940.780086] sp : bffa9b08  ip : 00000000  fp : bffa9bbc
[  940.791576] r10: ba3e2728  r9 : ba3e26ac  r8 : bffa9bdc
[  940.796805] r7 : bffa8000  r6 : ba3e2580  r5 : 00000000  r4 : 00000000
[  940.803336] r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 : ba3e2580
[  940.809868] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[  940.817095] Control: 10c53c7d  Table: 4116804a  DAC: 00000015
[  940.822845] Process kworker/0:2 (pid: 3946, stack limit = 0xbffa82f0)
[  940.829290] Stack: (0xbffa9b08 to 0xbffaa000)
[  940.833654] 9b00:                   8c008f40 8065f01c 8bff1000 800f7558 8bf51500 00001820
[  940.841840] 9b20: bf886b84 80c5dcf0 00000001 80cb5fa0 0bfd0000 80038f40 80038f40 800781a0
[  940.850026] 9b40: 80038f40 800381b4 ba60c660 bf886b84 00200200 00000001 ba3e2580 ba3e2580
[  940.858211] 9b60: bf886b84 800781fc ba3e2580 00000001 8c008f40 bf886680 bffa9b9c 80068bf0
[  940.866397] 9b80: ba3e2588 80038260 00000000 bffa8000 80cbd364 ba3e2880 bffa9b98 ba3e2580
[  940.874582] 9ba0: ffffffff 00000000 bff8c000 bffa9bdc ba3e26ac ba3e26ac ba3e26ac 80079554
[  940.882767] 9bc0: 00000000 bffa9bd4 80c6ec14 00000001 bffa8000 bffa9bd4 bffa9bd4 ba3e26f4
[  940.890953] 9be0: bffa9c4f bffa8000 00000000 00000001 8009ee2e bffa9c4f 8009ee30 00000000
[  940.899138] 9c00: bffa9c20 80044094 bffa82f0 0000000b 8c008258 00000000 00000000 00000008
[  940.907324] 9c20: 30613165 31303037 35326520 32303536 32652030 30333636 65203032 36306131
[  940.915509] 9c40: 20303136 61316628 31353530 00202930 80cb4d68 ffffffff 80c48000 bffa9d20
[  940.923695] 9c60: 8009ee2c f1a05510 00000000 f1000000 800400c4 bffa9e8c 80663754 8003a13c
[  940.931880] 9c80: 00000006 80096434 00000004 00000000 00030001 8009ee2c bffa9d1c 00000000
[  940.940065] 9ca0: ff8f8d80 bffa9d64 bfc0c8e8 80c60330 00000040 80392388 00000000 80038f40
[  940.948251] 9cc0: 80038f40 bffa9d64 80038f40 800381b4 4fb06de0 8004df0c ba3e2580 00000000
[  940.956436] 9ce0: ecf1f292 000000da ff7769da ffffffff ba3e2580 800683e4 7a189122 00000004
[  940.964622] 9d00: 000048eb bff8c7b8 ffffffff bffa9d54 80040454 00000000 f1000000 800400c4
[  940.972807] 9d20: 0000000f 8c008040 32b020c5 00000001 32b020c5 ffffffff 80000000 8c008040
[  940.980992] 9d40: 80663744 bffa9e8c bffa9e8c 80663754 00000000 bffa9d68 8009ef00 8009ee2c
[  940.989178] 9d60: 800f0093 ffffffff 179a7b00 8c008040 80046e70 bffa9dc4 80663744 8009ef00
[  940.997363] 9d80: 0000000a 80060f58 00000000 8c008040 600f0013 8009ef2c 80cb4f28 80054c40
[  941.005548] 9da0: 80cb4f28 80060f58 80cb4f28 00000000 600f0013 800a57d8 0011edd8 802c4c10
[  941.013733] 9dc0: bfe7c200 00000000 00000000 00000000 00000000 00000000 2f34f600 ffffffff
[  941.021918] 9de0: 00000000 00000001 bffa9e8c 80c9f664 bffa9e8c 80046e60 ffffffff 80095df8
[  941.030103] 9e00: 80cd91ec 80cd91d4 00000000 00000001 ffffffff 80095f84 00000000 80064064
[  941.038287] 9e20: ffffffff bffa9e8c bfc7f3c0 00000000 80038000 80c5db14 80c5db54 80095fb8
[  941.046472] 9e40: 00000000 00000004 80cb56fc 8048fb50 00000001 00000004 00000004 8006446c
[  941.054657] 9e60: bffa9e9c 8007a61c 000003ac 00000000 00000000 00000004 00000003 00000003
[  941.062842] 9e80: 3719ca67 8007a5dc 8c020568 00000000 000f32a0 000c15c0 bfc7f401 00000001
[  941.071028] 9ea0: bfc7f3c0 80c5db18 bfc7f3c0 80c9f744 000f32a0 00000004 00000243 80c5db54
[  941.079213] 9ec0: 03fa3fe0 8048ee10 80c9f744 804922bc 00000000 0bfe8000 bfc86580 8c008f40
[  941.087398] 9ee0: 03fa3fe0 8c008c98 bfc86580 00000000 00000001 80038f40 800381c0 8c008d04
[  941.095583] 9f00: 80038f40 800381b4 600f0013 00000000 00000000 800381c0 bfef9e80 bfbefe98
[  941.103769] 9f20: 3808a2ba 00000000 bfbefe98 ba0b8080 8c0082e0 8c00c500 00000000 80491e3c
[  941.111954] 9f40: 8c008cbc 8c00c505 00000009 8008c538 80c5dcf0 00000001 00000000 ba0b8080
[  941.120139] 9f60: 8c0082e0 8c0082e8 ba0b8090 80c5dcf0 80039440 bffa8000 00000009 8008cc18
[  941.128324] 9f80: 00000013 bf8afef8 ba0b8090 80039440 80039440 80039440 bffa9fbc bf8afee8
[  941.136520] 9fa0: bffa9fcc ba0b8080 8008cad0 00000000 00000000 00000000 00000000 80090708
[  941.144705] 9fc0: bf8afee8 00000000 ba0b8080 00000001 00000000 00000000 bffa9fd8 bffa9fd8
[  941.152891] 9fe0: 00000000 bf8afee8 80090684 80041080 00000013 80041080 f2f2f2f2 f2f2f2f2
[  941.161085] [<800902d0>] (kthread_data+0x4/0xc) from [<8008bb60>] (wq_worker_sleeping+0xc/0xd0)
[  941.169803] [<8008bb60>] (wq_worker_sleeping+0xc/0xd0) from [<8065f01c>] (__schedule+0x364/0x690)
[  941.178696] [<8065f01c>] (__schedule+0x364/0x690) from [<80079554>] (do_exit+0x4f0/0x730)
[  941.186892] [<80079554>] (do_exit+0x4f0/0x730) from [<80044094>] (die+0x250/0x2c8)
[  941.194486] [<80044094>] (die+0x250/0x2c8) from [<8003a13c>] (do_undefinstr+0x138/0x148)
[  941.202590] [<8003a13c>] (do_undefinstr+0x138/0x148) from [<800400c4>] (__und_svc+0x44/0x60)
[  941.211032] Exception stack(0xbffa9d20 to 0xbffa9d68)
[  941.216091] 9d20: 0000000f 8c008040 32b020c5 00000001 32b020c5 ffffffff 80000000 8c008040
[  941.224277] 9d40: 80663744 bffa9e8c bffa9e8c 80663754 00000000 bffa9d68 8009ef00 8009ee2c
[  941.232458] 9d60: 800f0093 ffffffff
[  941.235962] [<800400c4>] (__und_svc+0x44/0x60) from [<8009ee2c>] (clockevent_delta2ns+0x1c/0x94)
[  941.244760] [<8009ee2c>] (clockevent_delta2ns+0x1c/0x94) from [<8009ef00>] (clockevents_config+0x5c/0x78)
[  941.254339] [<8009ef00>] (clockevents_config+0x5c/0x78) from [<8009ef2c>] (clockevents_update_freq+0x10/0x48)
[  941.264270] [<8009ef2c>] (clockevents_update_freq+0x10/0x48) from [<800a57d8>] (smp_call_function_single+0x9c/0x1f4)
[  941.274807] [<800a57d8>] (smp_call_function_single+0x9c/0x1f4) from [<80046e60>] (twd_cpufreq_transition+0x48/0x58)
[  941.285258] [<80046e60>] (twd_cpufreq_transition+0x48/0x58) from [<80095df8>] (notifier_call_chain+0x44/0x84)
[  941.295187] [<80095df8>] (notifier_call_chain+0x44/0x84) from [<80095f84>] (__srcu_notifier_call_chain+0x44/0x60)
[  941.305461] [<80095f84>] (__srcu_notifier_call_chain+0x44/0x60) from [<80095fb8>] (srcu_notifier_call_chain+0x18/0x20)
[  941.316174] [<80095fb8>] (srcu_notifier_call_chain+0x18/0x20) from [<8048fb50>] (cpufreq_notify_transition+0xa0/0xe0)
[  941.326797] [<8048fb50>] (cpufreq_notify_transition+0xa0/0xe0) from [<8006446c>] (mxc_set_target+0x1b4/0x2b4)
[  941.336724] [<8006446c>] (mxc_set_target+0x1b4/0x2b4) from [<8048ee10>] (__cpufreq_driver_target+0x54/0x60)
[  941.346478] [<8048ee10>] (__cpufreq_driver_target+0x54/0x60) from [<804922bc>] (do_dbs_timer+0x480/0x498)
[  941.356058] [<804922bc>] (do_dbs_timer+0x480/0x498) from [<8008c538>] (process_one_work+0x108/0x3e4)
[  941.365201] [<8008c538>] (process_one_work+0x108/0x3e4) from [<8008cc18>] (worker_thread+0x148/0x450)
[  941.374432] [<8008cc18>] (worker_thread+0x148/0x450) from [<80090708>] (kthread+0x84/0x8c)
[  941.382708] [<80090708>] (kthread+0x84/0x8c) from [<80041080>] (kernel_thread_exit+0x0/0x8)
[  941.391068] Code: e593317c e5130008 e12fff1e e590317c (e5130004)

UPDATE: Does anyone have any advice on this? I'm going to request an RMA given that I have purchased 8 units and this is the only one that is acting up.

 

RMA fixed it. Thanks.

 

I can confirm I share exactly the same problem, and I cannot get the board to work in a stable way, i.e., without frequent freezes, no matter which distribution I try :-(

 

If you faced a frequent freezing problem with your UDOO board especially during downloading, that's an AC-DC adopter problem.