Libre Elec freezes with all builds so far on le Potato

rickyrockrat · December 30, 2022 at 10:36 AM

Wouldn't it be nice if *something* worked. The nightly build will not even seek without locking up, and LibreELEC-LePotato.arm-9.0.2 locks up partway through the movie, but it *does* seek. I thought this might be a nice board to run 4k video on, but apparently not. Back to my slowly dying I5 Intel.

Here's the dump from the serial port on the 9.0.2:

Code

[ 6157.526173@0] Internal error: : 96000010 [#1] SMP
[ 6157.526251@0] Modules linked in: 8021q snd_usb_audio mali(O) snd_hwdep snd_usbmidi_lib snd_rawmidi ir_lirc_codec wifi_dummy lirc_dev ir_sanyo_decoder ir_mce_kbd_decoder ir_sony_decoder ir_rt
[ 6157.555645@0] CPU: 0 PID: 10314 Comm: VideoPlayer Tainted: G           O 3.14.29 #1
[ 6157.563229@0] task: ffffffc04e5c4000 ti: ffffffc056258000 task.ti: ffffffc056258000
[ 6157.570828@0] PC is at __copy_to_user+0xc/0x60
[ 6157.575223@0] LR is at file_read_actor+0xc8/0x158
[ 6157.579874@0] pc : [<ffffffc00128af6c>] lr : [<ffffffc00110c510>] pstate: 20000145
[ 6157.587375@0] sp : ffffffc05625bc90
[ 6157.590826@0] x29: ffffffc05625bc90 x28: ffffff80401ce358 
[ 6157.596261@0] x27: ffffffc053e34440 x26: ffffffc001a8b000 
[ 6157.601695@0] x25: 00000000000003c9 x24: ffffffc056258000 
[ 6157.607126@0] x23: 0000000000000000 x22: 00000000000003c9 
[ 6157.612560@0] x21: ffffffc05625bda0 x20: 0000000005121000 
[ 6157.617994@0] x19: 00000000000003c9 x18: 0000000000000000 
[ 6157.623427@0] x17: 0000000000000000 x16: ffffffc00115da60 
[ 6157.628861@0] x15: 0000000000000000 x14: 00000000d70f3830 
[ 6157.634295@0] x13: 00000000d70f2840 x12: 0000000000000000 
[ 6157.639729@0] x11: 0000000000000000 x10: 0000000000000904 
[ 6157.645163@0] x9 : ffffffc05625bdf8 x8 : 0000000000000001 
[ 6157.650596@0] x7 : ffffffc0520a9a18 x6 : ffffffc0751fe000 
[ 6157.656030@0] x5 : 0000000000000010 x4 : 00000000edc20e78 
[ 6157.661463@0] x3 : 0000000000000000 x2 : 00000000000003c1 
[ 6157.666898@0] x1 : ffffffc005121000 x0 : 00000000edc20aaf 
[ 6157.672333@0] 
[ 6157.672333@0] PC: 0xffffffc00128aeec:
[ 6157.677591@0] aeec  b8004403 b1000842 54000084 78402423 d1000842 78002403 b1000442 54000064
[ 6157.685871@0] af0c  39400023 39000003 d2800000 d65f03c0 00000000 f9802021 a9400c22 a9411424
[ 6157.694151@0] af2c  a9421c26 a9432428 91010021 f9802021 a8000c02 a8011404 a8021c06 a8032408
[ 6157.702431@0] af4c  91010000 f2402c3f 54fffe81 d65f03c0 00000000 8b020004 f1002042 540000a4
[ 6157.710711@0] af6c  f8408423 f1002042 f8008403 54ffffa5 b1001042 54000084 b8404423 d1001042
[ 6157.718991@0] af8c  b8004403 b1000842 54000084 78402423 d1000842 78002403 b1000442 54000064
[ 6157.727271@0] afac  39400023 39000003 d2800000 d65f03c0 00000000 d5033fdf d53be042 d5033fdf
[ 6157.735551@0] afcc  d53be041 cb020021 eb01001f 540000e9 d503201f d5033fdf d53be041 cb020021
[ 6157.743833@0] 
[ 6157.743833@0] LR: 0xffffffc00110c490:
[ 6157.749094@0] c490  eb03033f 9a839333 d374ce94 2a1303f6 340001b3 52800000 52800003 39000043
[ 6157.757372@0] c4b0  35000720 93407e61 d1000421 8b010041 ca010042 f274cc5f 54000060 39000023
[ 6157.765652@0] c4d0  35000620 910003e0 f9001fb8 9272c418 b9405300 11000400 b9005300 f0004bfa
[ 6157.773933@0] c4f0  f9400aa0 b25a67e1 aa1303e2 f941cb43 cb030021 8b140021 8b170021 9405fa95
[ 6157.782212@0] c510  b9405301 51000421 b9005301 f9401fb8 b40001e0 94165d49 f941cb42 b25a67e1
[ 6157.790492@0] c530  f9400aa0 cb020021 aa1303e2 8b140021 8b170021 9405fa87 b40000a0 cb000273
[ 6157.798773@0] c550  128001a0 2a1303f6 b9001aa0 f94002a2 cb130321 f9400aa3 2a1603e0 8b130042
[ 6157.807052@0] c570  a90006a2 8b130073 f9000ab3 a94153f3 a9425bf5 f9401bf7 a9446bf9 a8c57bfd
[ 6157.815334@0] 
[ 6157.815334@0] SP: 0xffffffc05625bc10:
[ 6157.820594@0] bc10  05121000 00000000 5625bda0 ffffffc0 000003c9 00000000 00000000 00000000
[ 6157.828874@0] bc30  56258000 ffffffc0 000003c9 00000000 01a8b000 ffffffc0 53e34440 ffffffc0
[ 6157.837154@0] bc50  401ce358 ffffff80 5625bc90 ffffffc0 0110c510 ffffffc0 5625bc90 ffffffc0
[ 6157.845434@0] bc70  0128af6c ffffffc0 20000145 00000000 4e5c4410 ffffffc0 01ad5000 ffffffc0
[ 6157.853714@0] bc90  5625bce0 ffffffc0 0110c8cc ffffffc0 53e34588 ffffffc0 00054b33 00000000
[ 6157.861994@0] bcb0  4b032200 ffffffc0 00000000 00000000 5625bde8 ffffffc0 00000000 00000000
[ 6157.870274@0] bcd0  4b0322a0 ffffffc0 00000000 00000000 5625bdc0 ffffffc0 0115ca94 ffffffc0
[ 6157.878554@0] bcf0  5625bec8 ffffffc0 00001000 00000000 edc1fe78 00000000 5625bec8 ffffffc0
[ 6157.886838@0] 
[ 6157.886838@0] X1: 0xffffffc005120f80:
[ 6157.892095@0] 0f80 
[ 6157.893999@0] Unhandled fault: synchronous external abort (0x96000010) at 0xffffffc005120f80
[ 6158.767493@1] Bad mode in Error handler detected, code 0xbf000000
[ 6158.767977@1] CPU: 1 PID: 1 Comm: systemd Tainted: G           O 3.14.29 #1
[ 6158.774871@1] task: ffffffc0001ac000 ti: ffffffc055ffc000 task.ti: ffffffc055ffc000
[ 6158.782471@1] PC is at 0xf6edfd88
[ 6158.785738@1] LR is at 0xf6edfd74
[ 6158.789013@1] pc : [<00000000f6edfd88>] lr : [<00000000f6edfd74>] pstate: 20000010
[ 6158.796516@1] sp : 00000000ff9950d0
[ 6158.799967@1] x12: 0000000000000000 
[ 6158.803500@1] x11: 0000000000000000 x10: 0000000000000001 
[ 6158.808934@1] x9 : 00000000ab0a83c8 x8 : 00000000aaf32c37 
[ 6158.814367@1] x7 : 000000000000006a x6 : 0000000000000069 
[ 6158.819801@1] x5 : 0000000000000069 x4 : 00000000ab0a8040 
[ 6158.825235@1] x3 : 0000000000000008 x2 : 00000000ffffffff 
[ 6158.951678@1] x1 : 00000000000003c0 x0 : 0000000000000000 
[ 6158.957113@1] 
[ 6158.957113@1] SP: 0xffffffc055fffe50:
[ 6158.962371@1] fe50  00000000 00000000 55fffff0 ffffffc0 f6edfd88 00000000 20000010 00000000
[ 6158.970651@1] fe70  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6158.978931@1] fe90  00000000 00000000 00000000 00000000 00000000 00000000 55fffed0 ffffffc0
[ 6158.987211@1] feb0  00000000 00000000 600003c5 00000000 00000000 00000000 010842e0 ffffffc0
[ 6158.995491@1] fed0  00000071 00000000 f6ffbc14 00000000 ffffffff 00000000 00000008 00000000
[ 6159.003771@1] fef0  ab0a8040 00000000 00000069 00000000 00000069 00000000 0000006a 00000000
[ 6159.012051@1] ff10  aaf32c37 00000000 ab0a83c8 00000000 00000001 00000000 00000000 00000000
[ 6159.020331@1] ff30  00000000 00000000 ff9950d0 00000000 f6edfd74 00000000 00000000 00000000
[ 6159.028617@1] 
[ 6159.028617@1] X5: 0xffffffc0550eb340:
[ 6159.033873@1] b340  00040001 ffffffc0 0000539c 00000000 00000001 00000000 00000001 00000000
[ 6159.042153@1] b360  00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.050433@1] b380  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.058712@1] b3a0  00000000 00000000 00000000 00000000 00000000 00000000 019e6f48 ffffffc0
[ 6159.066992@1] b3c0  001ac8b0 ffffffc0 001ac8b0 ffffffc0 00000000 00000000 00000004 00000000
[ 6159.075272@1] b3e0  00030001 00000000 f6edfd88 00000000 f6dbcc0c 00000000 80000010 00000000
[ 6159.083552@1] b400  00000011 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.091832@1] b420  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.100116@1] 
[ 6159.100116@1] X7: 0xffffffc0550eb200:
[ 6159.105375@1] b200  00040001 ffffffc0 000051ac 00000000 00000000 00000000 00000000 00000000
[ 6159.113654@1] b220  00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.121934@1] b240  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.130214@1] b260  00000000 00000000 00000000 00000000 00000000 00000000 019e6f48 ffffffc0
[ 6159.138494@1] b280  550eb1e0 ffffffc0 550eb280 ffffffc0 00000000 00000000 00000011 00000000
[ 6159.146774@1] b2a0  00040001 ffffffc0 000051c2 00000000 00000001 00000000 00000001 00000000
[ 6159.155054@1] b2c0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.163334@1] b2e0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.171616@1] 
[ 6159.171616@1] X8: 0xffffffc055fffb00:
[ 6159.176875@1] fb00  55fffba0 ffffffc0 016a0748 ffffffc0 ffffffff ffffffff 01823b68 ffffffc0
[ 6159.185155@1] fb20  01823b78 ffffffc0 55fffb40 ffffffc0 55ffc000 ffffffc0 0182f000 ffffffc0
[ 6159.193435@1] fb40  01823000 ffffffc0 55fffb44 ffffffc0 ffffffff ffffffff 00000000 00000000
[ 6159.201715@1] fb60  00000004 00000000 55ffc000 ffffffc0 00000000 00000000 01a914c8 ffffffc0
[ 6159.209995@1] fb80  55fffc30 ffffffc0 55fffc30 ffffffc0 55fffbf0 ffffffc0 ffffffc8 00000000
[ 6159.218275@1] fba0  55fffc30 ffffffc0 01084f54 ffffffc0 55fffc30 ffffffc0 55fffc30 ffffffc0
[ 6159.226555@1] fbc0  55fffbf0 ffffffc0 ffffffc8 00000000 55fffc30 ffffffc0 55fffc30 ffffffc0
[ 6159.234835@1] fbe0  55fffbf0 ffffffc0 ffffffc8 00000000 00000000 00000080 00000080 00000000
[ 6159.243118@1] 
[ 6159.243118@1] X10: 0xffffffc055fffb30:
[ 6159.248464@1] fb30  55ffc000 ffffffc0 0182f000 ffffffc0 01823000 ffffffc0 55fffb44 ffffffc0
[ 6159.256742@1] fb50  ffffffff ffffffff 00000000 00000000 00000004 00000000 55ffc000 ffffffc0
[ 6159.265022@1] fb70  00000000 00000000 01a914c8 ffffffc0 55fffc30 ffffffc0 55fffc30 ffffffc0
[ 6159.273302@1] fb90  55fffbf0 ffffffc0 ffffffc8 00000000 55fffc30 ffffffc0 01084f54 ffffffc0
[ 6159.281582@1] fbb0  55fffc30 ffffffc0 55fffc30 ffffffc0 55fffbf0 ffffffc0 ffffffc8 00000000
[ 6159.289862@1] fbd0  55fffc30 ffffffc0 55fffc30 ffffffc0 55fffbf0 ffffffc0 ffffffc8 00000000
[ 6159.298143@1] fbf0  00000000 00000080 00000080 00000000 00000000 00000000 55fffc30 ffffffc0
[ 6159.306422@1] fc10  00000007 ffffffc0 000d423c 00000000 0143e408 ffffffc0 01a8b8d8 ffffffc0
[ 6159.314708@1] 
[ 6159.314708@1] X15: 0xffffffc001a91026:
[ 6159.320050@1] 1024  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.328330@1] 1044  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.336610@1] 1064  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001
[ 6159.344890@1] 1084  00000000 019fa7c8 ffffffc0 00000000 00000000 30303020 32303330 39383430
[ 6159.353170@1] 10a4  5d314030 61303120 39352034 3431332e 40383037 58205d31 203a3531 66667830
[ 6159.361450@1] 10c4  66666666 31303063 30313961 0a3a3632 30303030 5d3e3030 74737020 3a657461
[ 6159.369730@1] 10e4  30303620 63333030 300a0a35 30323135 0a303866 20687431 20636f70 31312d28
[ 6159.378010@1] 1104  6f6e2029 6e692074 73696c20 305b3074 7272455d 6320726f 69666e6f 636d5f67
[ 6159.386290@1] 1124  6675625f 2c726566 68743220 636f7020 312d2820 6e202935 6920746f 696c206e
[ 6159.394574@1] 
[ 6159.394574@1] X18: 0xffffffc081a91017:
[ 6159.399919@1] 1014  ******** ******** ******** ******** ******** ******** ******** ********
[ 6159.408198@1] 1034  ******** ******** ******** ******** ******** ******** ******** ********
[ 6159.416477@1] 1054  ******** ******** ******** ******** ******** ******** ******** ********
[ 6159.424758@1] 1074  ******** ******** ******** ******** ******** ******** ******** ********
[ 6159.433037@1] 1094  ******** ******** ******** ******** ******** ******** ******** ********
[ 6159.441318@1] 10b4  ******** ******** ******** ******** ******** ******** ******** ********
[ 6159.449599@1] 10d4  ******** ******** ******** ******** ******** ******** ******** ********
[ 6159.457878@1] 10f4  ******** ******** ******** ******** ******** ******** ******** ********
[ 6159.466157@1] 1114  ******** ******** ******** ******** ******** ******** ******** ********
[ 6159.474443@1] 
[ 6159.474443@1] X21: 0xffffffc055ffff70:
[ 6159.479785@1] ff70  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.488065@1] ff90  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.496346@1] ffb0  00000000 00000000 00000000 00000000 00000000 00000000 55fffff0 ffffffc0
[ 6159.504625@1] ffd0  f6edfd88 00000000 20000010 00000000 0000002a 00000000 ffffffff ffffffff
[ 6159.512905@1] fff0  ddfc535a 0bb8e49f 40c696a5 37093906 56320000 ffffffc0 55d20000 ffffffc0
[ 6159.521185@1] 0010  540e7500 ffffffc0 019e5210 ffffffc0 010a29b8 ffffffc0 00000000 00000000
[ 6159.529465@1] 0030  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 6159.537745@1] 0050  00000000 00000001 57ac6e9d 00000000 c42b8f5d f0a3fce1 37bfaa14 513b5041
[ 6159.546032@1] 
[ 6169.621410@1] Mali: Executor GP: Job 16688 Timeout on Mali_GP
[ 6174.631288@1] Mali: Executor GP: Job 16690 Timeout on Mali_GP
[ 6179.641172@1] Mali: Executor GP: Job 16692 Timeout on Mali_GP
[ 6184.651066@1] Mali: Executor GP: Job 16694 Timeout on Mali_GP
[ 6189.660954@1] Mali: Executor GP: Job 16696 Timeout on Mali_GP
[ 6194.670838@1] Mali: Executor GP: Job 16698 Timeout on Mali_GP
[ 6199.680729@1] Mali: Executor GP: Job 16700 Timeout on Mali_GP
[ 6204.690619@1] Mali: Executor GP: Job 16702 Timeout on Mali_GP
[ 6209.700516@1] Mali: Executor GP: Job 16704 Timeout on Mali_GP
[ 6214.710423@1] Mali: Executor GP: Job 16706 Timeout on Mali_GP
[ 6218.760298@1] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 3, t=6002 jiffies, g=49272, c=49271, q=360)
[ 6218.765684@3] Task dump for CPU 0:
[ 6218.769047@3] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ 6218.776204@3] Call trace:
[ 6218.778808@3] [<ffffffc0010854dc>] __switch_to+0x74/0x80
[ 6398.806650@3] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 2, t=24007 jiffies, g=49272, c=49271, q=363)
[ 6398.812119@2] Task dump for CPU 0:
[ 6398.815481@2] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ 6398.822639@2] Call trace:
[ 6398.825241@2] [<ffffffc0010854dc>] __switch_to+0x74/0x80
[ 6578.853287@2] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 2, t=42012 jiffies, g=49272, c=49271, q=369)
[ 6578.858760@2] Task dump for CPU 0:
[ 6578.862123@2] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ 6578.869280@2] Call trace:
[ 6578.871883@2] [<ffffffc0010854dc>] __switch_to+0x74/0x80
[ 6758.900072@2] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 3, t=60017 jiffies, g=49272, c=49271, q=371)
[ 6758.905539@3] Task dump for CPU 0:
[ 6758.908902@3] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ 6758.916060@3] Call trace:
[ 6758.918662@3] [<ffffffc0010854dc>] __switch_to+0x74/0x80
[ 6938.946922@3] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 2, t=78022 jiffies, g=49272, c=49271, q=373)
[ 6938.952397@2] Task dump for CPU 0:
[ 6938.955759@2] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ 6938.962917@2] Call trace:
[ 6938.965521@2] [<ffffffc0010854dc>] __switch_to+0x74/0x80

Display More

**chewitt** · December 30, 2022 at 11:20 AM

Two suggestions:

a) Drop the kernel.img and SYSTEM files from dtech images into /storage/.update/ and reboot to udpate to 9.2.8 which might behave better than Ye Olde 9.0.2 image now.

b) Have a play with https://chewitt.libreelec.tv/testing/LibreE…lepotato.img.gz which is using K20rc1 and modern uboot and Linux. Hardware decoding isn't perfect and there are some features on the long-term to-do list still, but as long as your media requirements aren't too challenging it's quite usable.

rickyrockrat · December 31, 2022 at 12:42 AM

I mostly play 4K, H265 encoded movies which IMO is pretty challenging. I have an I5 that can barely keep up, and sometimes does not.

However, I did pull down CoreELEC-Amlogic-ng.arm-20.0-Nexus_rc1-LePotato.img, and to my shock, it booted and managed to finish the 4k movie that locked up with Libreelec. I will stick with this for the time being. I had high hopes of finding a working kernel then running Alpine Linux on it, and while I did succeed in the latter, the former has video issues. I may just pull the CoreELEC boot/kernel out and use that with Alpine, but I'm guessing there are patches for the players too.

Thanks for the response and if I run into issues with core, I will use your advise.

**chewitt** · December 31, 2022 at 5:55 AM

Hardware decoding on a modern kernel codebase requires patched kernel + patched ffmpeg. LE sources are currently as good as it gets:

Commits · chewitt/linux

Linux kernel source tree -- WARNING I REBASE MY BRANCHES! - Commits · chewitt/linux

github.com

Commits · jc-kynesim/rpi-ffmpeg

FFmpeg work for RPI. Contribute to jc-kynesim/rpi-ffmpeg development by creating an account on GitHub.

github.com

The manjaro folks are tracking patches fairly well to result in a useable 'current' distro. Performance and feature completeness on the vendor kernel (used by CE) is better, but compatibility between old vendor kernels and the rest of a modern distro codebase can be a challenge.

The main negative I've seen in the LE/AMLGX image with LePotato is 100-BaseT Ethernet (common to all S905X boards). If trying to play large ISO rips Kodi often warns about slow sources etc. - S912 devices are normally better since most have Gigabit NICs.

NB: CE is run as a separate project so report any issue to their forums, we don't track their images at all.