ozacas

Hi all, I'm using a UEFI based edge ubuntu 24.04 image which reported a kernel stack trace (system still seems functional and no ongoing issue/messages) - [ 22.382942] rcu: INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 5-.... } 6 jiffies s: 381 root: 0x20/. [ 22.382966] rcu: blocking rcu_node structures (internal RCU debug): [ 22.382972] Sending NMI from CPU 7 to CPUs 5: [ 22.382983] NMI backtrace for cpu 5 [ 22.382995] CPU: 5 PID: 92 Comm: kworker/u16:2 Tainted: G W 6.8.5-edge-arm64 #2 [ 22.383004] Hardware name: Orange Pi Orange Pi 5 Plus/Orange Pi 5 Plus, BIOS v0.9.1 10/12/2023 [ 22.383009] Workqueue: writeback wb_workfn (flush-252:1) [ 22.383024] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 22.383032] pc : FSE_buildCTable_wksp+0x1ac/0x340 [ 22.383041] lr : 0xffff80008847c0ee [ 22.383047] sp : ffff80008309b0e0 [ 22.383051] x29: ffff80008309b0e0 x28: ffff00010117424b x27: 0000000000000006 [ 22.383061] x26: ffff80008309b2f8 x25: 0000000000000007 x24: ffff00010117424b [ 22.383069] x23: 0000000000001db5 x22: ffff8000885b4ad8 x21: ffff800088479ed4 [ 22.383077] x20: 000000000000002c x19: 0101010101010101 x18: 0000000000000080 [ 22.383086] x17: 0000000000000080 x16: ffff80008847c0ee x15: 0000000000000080 [ 22.383094] x14: 0000000000000104 x13: ffff800088479ed4 x12: ffff80008847c094 [ 22.383103] x11: 000000000000002c x10: 0000000000000007 x9 : ffff80008847c100 [ 22.383111] x8 : 000000000000002c x7 : 000000000000002c x6 : ffff80008847c15c [ 22.383119] x5 : 0000000000000004 x4 : 0000000000000023 x3 : 00000000000000ee [ 22.383127] x2 : 0000000000000006 x1 : 0000000000000048 x0 : 000000000000006f [ 22.383135] Call trace: [ 22.383139] FSE_buildCTable_wksp+0x1ac/0x340 [ 22.383145] ZSTD_buildCTable+0x1d0/0x1e8 [ 22.383155] ZSTD_buildSequencesStatistics+0x31c/0x3b8 [ 22.383164] ZSTD_entropyCompressSeqStore_internal.constprop.0+0x170/0x2c0 [ 22.383172] ZSTD_compressBlock_internal+0x8c/0x200 [ 22.383180] ZSTD_compressContinue_internal+0x1e0/0xa88 [ 22.383187] ZSTD_compressEnd+0x34/0x1a0 [ 22.383195] ZSTD_compressStream2+0x514/0x600 [ 22.383203] ZSTD_compress2+0x68/0xb8 [ 22.383211] zstd_compress_cctx+0xa0/0xc0 [ 22.383216] __zstd_compress+0x70/0xc8 [zstd] [ 22.383232] zstd_compress+0x30/0x48 [zstd] [ 22.383245] crypto_comp_compress+0x20/0x38 [ 22.383251] zcomp_compress+0x2c/0x40 [zram] [ 22.383267] zram_submit_bio+0x3dc/0x9a0 [zram] [ 22.383280] __submit_bio+0xb4/0x148 [ 22.383290] submit_bio_noacct_nocheck+0x10c/0x2e8 [ 22.383299] submit_bio_noacct+0x184/0x530 [ 22.383308] submit_bio+0xa4/0x118 [ 22.383317] ext4_io_submit+0x38/0x68 [ 22.383324] ext4_do_writepages+0x568/0xb48 [ 22.383332] ext4_writepages+0xa4/0x138 [ 22.383340] do_writepages+0x90/0x210 [ 22.383346] __writeback_single_inode+0x48/0x400 [ 22.383352] writeback_sb_inodes+0x234/0x5e8 [ 22.383356] __writeback_inodes_wb+0x68/0x150 [ 22.383361] wb_writeback+0x294/0x3a0 [ 22.383366] wb_workfn+0x32c/0x5d0 [ 22.383371] process_one_work+0x164/0x360 [ 22.383378] worker_thread+0x2b8/0x510 [ 22.383384] kthread+0xec/0xf8 [ 22.383389] ret_from_fork+0x10/0x20 Details from armbianmonitor -u at https://paste.armbian.com/tuxuroyunu cheers Andrew

Maybe sudo armbianmonitor -u might help shed some light about what is going on - perhaps there is an issue with the device or driver? But no problems for me with the arm64 uefi image on my opi5+ 16GB - acas@opi:~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS zram0 252:0 0 7.7G 0 disk [SWAP] zram1 252:1 0 50M 0 disk /var/log zram2 252:2 0 0B 0 disk nvme0n1 259:0 0 1.8T 0 disk ├─nvme0n1p1 259:1 0 259M 0 part /boot/efi └─nvme0n1p2 259:2 0 1.8T 0 part /var/log.hdd /

Hi, i went a slightly different route and built a custom image for UEFI support based on current amazingfate armbian build framework (edge kernel 6.8.1 with EDK2 0.9.1) which works well - with NVME boot support based on your instructions above. I needed to enable USB2 support in UEFI settings for the slow usb stick boot, but i've ended up with a nicely working grub on an arm64 box which feels weird 😁 ... but lovely! https://paste.armbian.com/obowabadak has the output from armbianmonitor -u I did get a kernel stack trace about 8s into the kernel boot, but doesnt seem to impact anything. In my case I could not get the EDK2 img md5sum to match during the SPI flash... same result everytime. I just assumed a bit of trailing garbage was the culprit and it booted anyway 🤪

passively cooled for me, just the aluminium case. Hate fans 😁 No worries about the LED just wasnt what I expected would happen.

Builds cleanly. No issues rebooting into the revised kernel - but for me poweroff doesnt turn off the red LED on the front panel. Not sure whether this is expected. cheers Andrew

Not quite ten percent, but certainly active around the 5-6% range as reported by top(1) - see attached piccie. Thanks for the poweroff patch, i'll patch my kernel tree and see how it goes. cheers

Hi all, FWIW I had made a custom image (based on Ubuntu 24.04, edge kernel 6.8.0rc1) for orange pi 5 plus. Booted successfully from SD card, copy to EMMC using armbian-config and NVME support (although not used for booting). Working nicely - most things working, except for GPU accel and other bits. Oddly, poweroff does not - it reboots. Details of the opi5+ can be found at https://paste.armbian.com/ovoyijijic