Libre Elec freezes with all builds so far on le Potato

rickyrockrat · Dec 30th 2022

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

[ [email protected]] Internal error: : 96000010 [#1] SMP
[ [email protected]] 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
[ [email protected]] CPU: 0 PID: 10314 Comm: VideoPlayer Tainted: G           O 3.14.29 #1
[ [email protected]] task: ffffffc04e5c4000 ti: ffffffc056258000 task.ti: ffffffc056258000
[ [email protected]] PC is at __copy_to_user+0xc/0x60
[ [email protected]] LR is at file_read_actor+0xc8/0x158
[ [email protected]] pc : [<ffffffc00128af6c>] lr : [<ffffffc00110c510>] pstate: 20000145
[ [email protected]] sp : ffffffc05625bc90
[ [email protected]] x29: ffffffc05625bc90 x28: ffffff80401ce358 
[ [email protected]] x27: ffffffc053e34440 x26: ffffffc001a8b000 
[ [email protected]] x25: 00000000000003c9 x24: ffffffc056258000 
[ [email protected]] x23: 0000000000000000 x22: 00000000000003c9 
[ [email protected]] x21: ffffffc05625bda0 x20: 0000000005121000 
[ [email protected]] x19: 00000000000003c9 x18: 0000000000000000 
[ [email protected]] x17: 0000000000000000 x16: ffffffc00115da60 
[ [email protected]] x15: 0000000000000000 x14: 00000000d70f3830 
[ [email protected]] x13: 00000000d70f2840 x12: 0000000000000000 
[ [email protected]] x11: 0000000000000000 x10: 0000000000000904 
[ [email protected]] x9 : ffffffc05625bdf8 x8 : 0000000000000001 
[ [email protected]] x7 : ffffffc0520a9a18 x6 : ffffffc0751fe000 
[ [email protected]] x5 : 0000000000000010 x4 : 00000000edc20e78 
[ [email protected]] x3 : 0000000000000000 x2 : 00000000000003c1 
[ [email protected]] x1 : ffffffc005121000 x0 : 00000000edc20aaf 
[ [email protected]] 
[ [email protected]] PC: 0xffffffc00128aeec:
[ [email protected]] aeec  b8004403 b1000842 54000084 78402423 d1000842 78002403 b1000442 54000064
[ [email protected]] af0c  39400023 39000003 d2800000 d65f03c0 00000000 f9802021 a9400c22 a9411424
[ [email protected]] af2c  a9421c26 a9432428 91010021 f9802021 a8000c02 a8011404 a8021c06 a8032408
[ [email protected]] af4c  91010000 f2402c3f 54fffe81 d65f03c0 00000000 8b020004 f1002042 540000a4
[ [email protected]] af6c  f8408423 f1002042 f8008403 54ffffa5 b1001042 54000084 b8404423 d1001042
[ [email protected]] af8c  b8004403 b1000842 54000084 78402423 d1000842 78002403 b1000442 54000064
[ [email protected]] afac  39400023 39000003 d2800000 d65f03c0 00000000 d5033fdf d53be042 d5033fdf
[ [email protected]] afcc  d53be041 cb020021 eb01001f 540000e9 d503201f d5033fdf d53be041 cb020021
[ [email protected]] 
[ [email protected]] LR: 0xffffffc00110c490:
[ [email protected]] c490  eb03033f 9a839333 d374ce94 2a1303f6 340001b3 52800000 52800003 39000043
[ [email protected]] c4b0  35000720 93407e61 d1000421 8b010041 ca010042 f274cc5f 54000060 39000023
[ [email protected]] c4d0  35000620 910003e0 f9001fb8 9272c418 b9405300 11000400 b9005300 f0004bfa
[ [email protected]] c4f0  f9400aa0 b25a67e1 aa1303e2 f941cb43 cb030021 8b140021 8b170021 9405fa95
[ [email protected]] c510  b9405301 51000421 b9005301 f9401fb8 b40001e0 94165d49 f941cb42 b25a67e1
[ [email protected]] c530  f9400aa0 cb020021 aa1303e2 8b140021 8b170021 9405fa87 b40000a0 cb000273
[ [email protected]] c550  128001a0 2a1303f6 b9001aa0 f94002a2 cb130321 f9400aa3 2a1603e0 8b130042
[ [email protected]] c570  a90006a2 8b130073 f9000ab3 a94153f3 a9425bf5 f9401bf7 a9446bf9 a8c57bfd
[ [email protected]] 
[ [email protected]] SP: 0xffffffc05625bc10:
[ [email protected]] bc10  05121000 00000000 5625bda0 ffffffc0 000003c9 00000000 00000000 00000000
[ [email protected]] bc30  56258000 ffffffc0 000003c9 00000000 01a8b000 ffffffc0 53e34440 ffffffc0
[ [email protected]] bc50  401ce358 ffffff80 5625bc90 ffffffc0 0110c510 ffffffc0 5625bc90 ffffffc0
[ [email protected]] bc70  0128af6c ffffffc0 20000145 00000000 4e5c4410 ffffffc0 01ad5000 ffffffc0
[ [email protected]] bc90  5625bce0 ffffffc0 0110c8cc ffffffc0 53e34588 ffffffc0 00054b33 00000000
[ [email protected]] bcb0  4b032200 ffffffc0 00000000 00000000 5625bde8 ffffffc0 00000000 00000000
[ [email protected]] bcd0  4b0322a0 ffffffc0 00000000 00000000 5625bdc0 ffffffc0 0115ca94 ffffffc0
[ [email protected]] bcf0  5625bec8 ffffffc0 00001000 00000000 edc1fe78 00000000 5625bec8 ffffffc0
[ [email protected]] 
[ [email protected]] X1: 0xffffffc005120f80:
[ [email protected]] 0f80 
[ [email protected]] Unhandled fault: synchronous external abort (0x96000010) at 0xffffffc005120f80
[ [email protected]] Bad mode in Error handler detected, code 0xbf000000
[ [email protected]] CPU: 1 PID: 1 Comm: systemd Tainted: G           O 3.14.29 #1
[ [email protected]] task: ffffffc0001ac000 ti: ffffffc055ffc000 task.ti: ffffffc055ffc000
[ [email protected]] PC is at 0xf6edfd88
[ [email protected]] LR is at 0xf6edfd74
[ [email protected]] pc : [<00000000f6edfd88>] lr : [<00000000f6edfd74>] pstate: 20000010
[ [email protected]] sp : 00000000ff9950d0
[ [email protected]] x12: 0000000000000000 
[ [email protected]] x11: 0000000000000000 x10: 0000000000000001 
[ [email protected]] x9 : 00000000ab0a83c8 x8 : 00000000aaf32c37 
[ [email protected]] x7 : 000000000000006a x6 : 0000000000000069 
[ [email protected]] x5 : 0000000000000069 x4 : 00000000ab0a8040 
[ [email protected]] x3 : 0000000000000008 x2 : 00000000ffffffff 
[ [email protected]] x1 : 00000000000003c0 x0 : 0000000000000000 
[ [email protected]] 
[ [email protected]] SP: 0xffffffc055fffe50:
[ [email protected]] fe50  00000000 00000000 55fffff0 ffffffc0 f6edfd88 00000000 20000010 00000000
[ [email protected]] fe70  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] fe90  00000000 00000000 00000000 00000000 00000000 00000000 55fffed0 ffffffc0
[ [email protected]] feb0  00000000 00000000 600003c5 00000000 00000000 00000000 010842e0 ffffffc0
[ [email protected]] fed0  00000071 00000000 f6ffbc14 00000000 ffffffff 00000000 00000008 00000000
[ [email protected]] fef0  ab0a8040 00000000 00000069 00000000 00000069 00000000 0000006a 00000000
[ [email protected]] ff10  aaf32c37 00000000 ab0a83c8 00000000 00000001 00000000 00000000 00000000
[ [email protected]] ff30  00000000 00000000 ff9950d0 00000000 f6edfd74 00000000 00000000 00000000
[ [email protected]] 
[ [email protected]] X5: 0xffffffc0550eb340:
[ [email protected]] b340  00040001 ffffffc0 0000539c 00000000 00000001 00000000 00000001 00000000
[ [email protected]] b360  00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] b380  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] b3a0  00000000 00000000 00000000 00000000 00000000 00000000 019e6f48 ffffffc0
[ [email protected]] b3c0  001ac8b0 ffffffc0 001ac8b0 ffffffc0 00000000 00000000 00000004 00000000
[ [email protected]] b3e0  00030001 00000000 f6edfd88 00000000 f6dbcc0c 00000000 80000010 00000000
[ [email protected]] b400  00000011 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] b420  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] 
[ [email protected]] X7: 0xffffffc0550eb200:
[ [email protected]] b200  00040001 ffffffc0 000051ac 00000000 00000000 00000000 00000000 00000000
[ [email protected]] b220  00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] b240  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] b260  00000000 00000000 00000000 00000000 00000000 00000000 019e6f48 ffffffc0
[ [email protected]] b280  550eb1e0 ffffffc0 550eb280 ffffffc0 00000000 00000000 00000011 00000000
[ [email protected]] b2a0  00040001 ffffffc0 000051c2 00000000 00000001 00000000 00000001 00000000
[ [email protected]] b2c0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] b2e0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] 
[ [email protected]] X8: 0xffffffc055fffb00:
[ [email protected]] fb00  55fffba0 ffffffc0 016a0748 ffffffc0 ffffffff ffffffff 01823b68 ffffffc0
[ [email protected]] fb20  01823b78 ffffffc0 55fffb40 ffffffc0 55ffc000 ffffffc0 0182f000 ffffffc0
[ 6159.[email protected]] fb40  01823000 ffffffc0 55fffb44 ffffffc0 ffffffff ffffffff 00000000 00000000
[ [email protected]] fb60  00000004 00000000 55ffc000 ffffffc0 00000000 00000000 01a914c8 ffffffc0
[ [email protected]] fb80  55fffc30 ffffffc0 55fffc30 ffffffc0 55fffbf0 ffffffc0 ffffffc8 00000000
[ [email protected]] fba0  55fffc30 ffffffc0 01084f54 ffffffc0 55fffc30 ffffffc0 55fffc30 ffffffc0
[ [email protected]] fbc0  55fffbf0 ffffffc0 ffffffc8 00000000 55fffc30 ffffffc0 55fffc30 ffffffc0
[ [email protected]] fbe0  55fffbf0 ffffffc0 ffffffc8 00000000 00000000 00000080 00000080 00000000
[ [email protected]] 
[ [email protected]] X10: 0xffffffc055fffb30:
[ [email protected]] fb30  55ffc000 ffffffc0 0182f000 ffffffc0 01823000 ffffffc0 55fffb44 ffffffc0
[ [email protected]] fb50  ffffffff ffffffff 00000000 00000000 00000004 00000000 55ffc000 ffffffc0
[ [email protected]] fb70  00000000 00000000 01a914c8 ffffffc0 55fffc30 ffffffc0 55fffc30 ffffffc0
[ [email protected]] fb90  55fffbf0 ffffffc0 ffffffc8 00000000 55fffc30 ffffffc0 01084f54 ffffffc0
[ [email protected]] fbb0  55fffc30 ffffffc0 55fffc30 ffffffc0 55fffbf0 ffffffc0 ffffffc8 00000000
[ [email protected]] fbd0  55fffc30 ffffffc0 55fffc30 ffffffc0 55fffbf0 ffffffc0 ffffffc8 00000000
[ [email protected]] fbf0  00000000 00000080 00000080 00000000 00000000 00000000 55fffc30 ffffffc0
[ [email protected]] fc10  00000007 ffffffc0 000d423c 00000000 0143e408 ffffffc0 01a8b8d8 ffffffc0
[ [email protected]] 
[ [email protected]] X15: 0xffffffc001a91026:
[ [email protected]] 1024  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] 1044  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] 1064  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001
[ [email protected]] 1084  00000000 019fa7c8 ffffffc0 00000000 00000000 30303020 32303330 39383430
[ [email protected]] 10a4  5d314030 61303120 39352034 3431332e 40383037 58205d31 203a3531 66667830
[ [email protected]] 10c4  66666666 31303063 30313961 0a3a3632 30303030 5d3e3030 74737020 3a657461
[ [email protected]] 10e4  30303620 63333030 300a0a35 30323135 0a303866 20687431 20636f70 31312d28
[ [email protected]] 1104  6f6e2029 6e692074 73696c20 305b3074 7272455d 6320726f 69666e6f 636d5f67
[ [email protected]] 1124  6675625f 2c726566 68743220 636f7020 312d2820 6e202935 6920746f 696c206e
[ [email protected]] 
[ [email protected]] X18: 0xffffffc081a91017:
[ [email protected]] 1014  ******** ******** ******** ******** ******** ******** ******** ********
[ [email protected]] 1034  ******** ******** ******** ******** ******** ******** ******** ********
[ [email protected]] 1054  ******** ******** ******** ******** ******** ******** ******** ********
[ [email protected]] 1074  ******** ******** ******** ******** ******** ******** ******** ********
[ [email protected]] 1094  ******** ******** ******** ******** ******** ******** ******** ********
[ [email protected]] 10b4  ******** ******** ******** ******** ******** ******** ******** ********
[ [email protected]] 10d4  ******** ******** ******** ******** ******** ******** ******** ********
[ [email protected]] 10f4  ******** ******** ******** ******** ******** ******** ******** ********
[ [email protected]] 1114  ******** ******** ******** ******** ******** ******** ******** ********
[ [email protected]] 
[ [email protected]] X21: 0xffffffc055ffff70:
[ [email protected]] ff70  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] ff90  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] ffb0  00000000 00000000 00000000 00000000 00000000 00000000 55fffff0 ffffffc0
[ [email protected]] ffd0  f6edfd88 00000000 20000010 00000000 0000002a 00000000 ffffffff ffffffff
[ [email protected]] fff0  ddfc535a 0bb8e49f 40c696a5 37093906 56320000 ffffffc0 55d20000 ffffffc0
[ [email protected]] 0010  540e7500 ffffffc0 019e5210 ffffffc0 010a29b8 ffffffc0 00000000 00000000
[ [email protected]] 0030  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ [email protected]] 0050  00000000 00000001 57ac6e9d 00000000 c42b8f5d f0a3fce1 37bfaa14 513b5041
[ [email protected]] 
[ [email protected]] Mali: Executor GP: Job 16688 Timeout on Mali_GP
[ [email protected]] Mali: Executor GP: Job 16690 Timeout on Mali_GP
[ [email protected]] Mali: Executor GP: Job 16692 Timeout on Mali_GP
[ [email protected]] Mali: Executor GP: Job 16694 Timeout on Mali_GP
[ [email protected]] Mali: Executor GP: Job 16696 Timeout on Mali_GP
[ [email protected]] Mali: Executor GP: Job 16698 Timeout on Mali_GP
[ [email protected]] Mali: Executor GP: Job 16700 Timeout on Mali_GP
[ [email protected]] Mali: Executor GP: Job 16702 Timeout on Mali_GP
[ [email protected]] Mali: Executor GP: Job 16704 Timeout on Mali_GP
[ [email protected]] Mali: Executor GP: Job 16706 Timeout on Mali_GP
[ [email protected]] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 3, t=6002 jiffies, g=49272, c=49271, q=360)
[ [email protected]] Task dump for CPU 0:
[ [email protected]] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ [email protected]] Call trace:
[ [email protected]] [<ffffffc0010854dc>] __switch_to+0x74/0x80
[ [email protected]] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 2, t=24007 jiffies, g=49272, c=49271, q=363)
[ [email protected]] Task dump for CPU 0:
[ [email protected]] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ [email protected]] Call trace:
[ [email protected]] [<ffffffc0010854dc>] __switch_to+0x74/0x80
[ [email protected]] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 2, t=42012 jiffies, g=49272, c=49271, q=369)
[ [email protected]] Task dump for CPU 0:
[ [email protected]] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ [email protected]] Call trace:
[ [email protected]] [<ffffffc0010854dc>] __switch_to+0x74/0x80
[ [email protected]] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 3, t=60017 jiffies, g=49272, c=49271, q=371)
[ [email protected]] Task dump for CPU 0:
[ [email protected]] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ [email protected]] Call trace:
[ [email protected]] [<ffffffc0010854dc>] __switch_to+0x74/0x80
[ [email protected]] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 2, t=78022 jiffies, g=49272, c=49271, q=373)
[ [email protected]] Task dump for CPU 0:
[ [email protected]] VideoPlayer     R  running task        0 10314   9591 0x00400002
[ [email protected]] Call trace:
[ [email protected]] [<ffffffc0010854dc>] __switch_to+0x74/0x80

Display More

**chewitt** · Dec 30th 2022

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/t…m-10.88.0-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 · Dec 31st 2022

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** · Dec 31st 2022

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.