One more rock pi 4a debian desktop working but ubuntu server os is not working.
Ubuntu server log
[ 1.614872] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.616517] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[ 1.617319] hw perfevents: enabled with armv8_cortex_a72 PMU driver, 7 counters available
[ 1.621069] audit: initializing netlink subsys (disabled)
[ 1.621577] audit: type=2000 audit(1.540:1): initialized
[ 1.622449] Initialise system trusted keyring
[ 1.623236] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 1.630956] VFS: Disk quotas dquot_6.6.0
[ 1.631464] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 1.633500] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 1.635221] NFS: Registering the id_resolver key type
[ 1.635688] Key type id_resolver registered
[ 1.636063] Key type id_legacy registered
[ 1.636495] fuse init (API version 7.23)
[ 1.637587] JFS: nTxBlock = 710, nTxLock = 5686
[ 1.639329] SGI XFS with ACLs, security attributes, realtime, no debug enabled
[ 1.642110] Key type big_key registered
[ 1.642513]
[ 1.642513] TEE Core Framework initialization (ver 1:0.1)
[ 1.643151] TEE armv7 Driver initialization
[ 1.643974] tz_tee_probe: name=“armv7sec”, id=0, pdev_name=“armv7sec.0”
[ 1.644560] TEE core: Alloc the misc device “opteearmtz00” (id=0)
[ 1.645290] TEE Core: Register the misc device “opteearmtz00” (id=0,minor=62)
[ 1.650037] NET: Registered protocol family 38
[ 1.650462] Key type asymmetric registered
[ 1.650851] Asymmetric key parser ‘x509’ registered
[ 1.651469] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
[ 1.652279] io scheduler noop registered
[ 1.652639] io scheduler deadline registered (default)
[ 1.653126] io scheduler cfq registered
[ 1.655069] phy phy-ff770000.syscon:usb2-phy@e450.1: Failed to get VBUS supply regulator
[ 1.657117] phy phy-ff770000.syscon:usb2-phy@e460.3: Failed to get VBUS supply regulator
[ 1.662608] rockchip-pcie f8000000.pcie: no vpcie3v3 regulator found
[ 1.663190] rockchip-pcie f8000000.pcie: no vpcie1v8 regulator found
[ 1.663771] rockchip-pcie f8000000.pcie: no vpcie0v9 regulator found
[ 2.210602] rockchip-pcie f8000000.pcie: PCIe link training gen1 timeout!
[ 2.211326] rockchip-pcie: probe of f8000000.pcie failed with error -110
[ 2.213089] rk-vcodec ff650000.vpu_service: no regulator for vcodec
[ 2.213989] rk-vcodec ff650000.vpu_service: probe device
[ 2.214766] Kernel panic - not syncing: Can not allocate SWIOTLB buffer earlier and can’t now provide you with the DMA bounce buffer
[ 2.215810] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.154-59-rockchip-g5e70f14 #4
[ 2.216503] Hardware name: ROCK PI 4B (DT)
[ 2.216867] Call trace:
[ 2.217101] [] dump_backtrace+0x0/0x220
[ 2.217584] [] show_stack+0x24/0x30
[ 2.218045] [] dump_stack+0x98/0xc0
[ 2.218505] [] panic+0xe8/0x23c
[ 2.218931] [] swiotlb_tbl_map_single+0x40/0x26c
[ 2.219480] [] swiotlb_map_page+0x10c/0x1d8
[ 2.219998] [] __swiotlb_map_page+0x50/0x94
[ 2.220515] [] rk_iommu_domain_alloc+0x138/0x248
[ 2.221067] [] __iommu_domain_alloc+0x34/0x58
[ 2.221594] [] iommu_domain_alloc+0x24/0x30
[ 2.222111] [] vcodec_drm_create+0x6c/0x108
[ 2.222626] [] vcodec_iommu_create+0x30/0x44
[ 2.223141] [] vcodec_iommu_info_create+0x98/0xb4
[ 2.223701] [] vcodec_subdev_probe+0x24c/0x7d0
[ 2.224238] [] vcodec_probe+0xc04/0xd58
[ 2.224721] [] platform_drv_probe+0x5c/0xb0
[ 2.225238] [] driver_probe_device+0x260/0x3d0
[ 2.225777] [] __driver_attach+0x54/0xa0
[ 2.226269] [] bus_for_each_dev+0x8c/0x9c
[ 2.226762] [] driver_attach+0x30/0x3c
[ 2.227233] [] bus_add_driver+0x1fc/0x240
[ 2.227724] [] driver_register+0xa0/0xd8
[ 2.228215] [] __platform_driver_register+0x58/0x64
[ 2.228787] [] vcodec_driver_init+0x18/0x20
[ 2.229302] [] do_one_initcall+0x18c/0x194
[ 2.229808] [] kernel_init_freeable+0x228/0x22c
[ 2.230349] [] kernel_init+0x18/0x100
[ 2.230817] [] ret_from_fork+0x10/0x20
[ 2.231287] CPU5: stopping
[ 2.231541] CPU: 5 PID: 0 Comm: swapper/5 Not tainted 4.4.154-59-rockchip-g5e70f14 #4
[ 2.232227] Hardware name: ROCK PI 4B (DT)
[ 2.232591] Call trace:
[ 2.232825] [] dump_backtrace+0x0/0x220
[ 2.233307] [] show_stack+0x24/0x30
[ 2.233756] [] dump_stack+0x98/0xc0
[ 2.234202] [] handle_IPI+0x1d0/0x248
[ 2.234670] [] gic_handle_irq+0x17c/0x180
[ 2.235161] Exception stack(0xffffffc006adbe10 to 0xffffffc006adbf40)
[ 2.235733] be00: 0000003ffedab000 ffffff80091bb000
[ 2.236423] be20: 0000000000000000 ffffff800920de00 0100000000000000 000000000ff6085a
[ 2.237111] be40: 0000000000000424 0000000000000000 ffffffc006ac5080 ffffffc006adbef0
[ 2.237801] be60: 0000000000000a20 0000000000000644 0000000000000228 0000000300000001
[ 2.238489] be80: 0000000000000004 0000000000000000 000000000000000c 0000000000007fff
[ 2.239178] bea0: 0000000000000005 ffffff80091bb000 ffffff800935a6c0 ffffff800935a000
[ 2.239866] bec0: ffffff80091f5000 ffffff80091f5718 ffffff8008c57000 0000000003454000
[ 2.240553] bee0: 0000000003457000 0000000002c45234 0000000000000000 ffffffc006adbf40
[ 2.241241] bf00: ffffff8008085100 ffffffc006adbf40 ffffff8008085104 0000000060000045
[ 2.241929] bf20: ffffff80091bb000 ffffff80091f5000 ffffffffffffffff ffffff8008c57000
[ 2.242619] [] el1_irq+0xb4/0x140
[ 2.243053] [] arch_cpu_idle+0x8c/0x100
[ 2.243535] [] default_idle_call+0x30/0x34
[ 2.244038] [] cpu_startup_entry+0x214/0x2ac
[ 2.244552] [] secondary_start_kernel+0x190/0x1bc
[ 2.245102] [<0000000002c45178>] 0x2c45178
[ 2.245466] CPU4: stopping
[ 2.245720] CPU: 4 PID: 0 Comm: swapper/4 Not tainted 4.4.154-59-rockchip-g5e70f14 #4
[ 2.246407] Hardware name: ROCK PI 4B (DT)
[ 2.246771] Call trace:
[ 2.247001] [] dump_backtrace+0x0/0x220
[ 2.247483] [] show_stack+0x24/0x30
[ 2.247930] [] dump_stack+0x98/0xc0
[ 2.248376] [] handle_IPI+0x1d0/0x248
[ 2.248843] [] gic_handle_irq+0x17c/0x180
[ 2.249333] Exception stack(0xffffffc006ad7e10 to 0xffffffc006ad7f40)
[ 2.249905] 7e00: 0000003ffed96000 ffffff80091bb000
[ 2.250595] 7e20: 0000000000000000 ffffff800920de00 0100000000000000 ffffff8009398cc0
[ 2.251284] 7e40: 0000000000000318 0000000000000011 ffffffc006ac4280 ffffffc006ad7ef0
[ 2.251973] 7e60: 0000000000000a20 0000000000000644 0000000000000361 0000000400000000
[ 2.252661] 7e80: 0000000000000004 00000000f1c7548e 0000000000000020 0000000000000000
[ 2.253349] 7ea0: 0000000000000002 ffffff80091bb000 ffffff800935a6c0 ffffff800935a000
[ 2.254037] 7ec0: ffffff80091f5000 ffffff80091f5718 ffffff8008c57000 0000000003454000
[ 2.254726] 7ee0: 0000000003457000 0000000002c45234 0000000000000000 ffffffc006ad7f40
[ 2.255414] 7f00: ffffff8008085100 ffffffc006ad7f40 ffffff8008085104 0000000060000045
[ 2.256103] 7f20: ffffff80091bb000 ffffff80091f5000 ffffffffffffffff ffffff8008c57000
[ 2.256790] [] el1_irq+0xb4/0x140
[ 2.257225] [] arch_cpu_idle+0x8c/0x100
[ 2.257705] [] default_idle_call+0x30/0x34
[ 2.258208] [] cpu_startup_entry+0x214/0x2ac
[ 2.258723] [] secondary_start_kernel+0x190/0x1bc
[ 2.259271] [<0000000002c45178>] 0x2c45178
[ 2.259637] CPU2: stopping
[ 2.259892] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.4.154-59-rockchip-g5e70f14 #4
[ 2.260585] Hardware name: ROCK PI 4B (DT)
[ 2.260947] Call trace:
[ 2.261177] [] dump_backtrace+0x0/0x220
[ 2.261659] [] show_stack+0x24/0x30
[ 2.262116] [] dump_stack+0x98/0xc0
[ 2.262573] [] handle_IPI+0x1d0/0x248
[ 2.263042] [] gic_handle_irq+0x17c/0x180
[ 2.263532] Exception stack(0xffffffc006acfe10 to 0xffffffc006acff40)
[ 2.264103] fe00: 0000003ffed6c000 ffffff80091bb000
[ 2.264800] fe20: 0000000000000000 ffffff800920de00 0100000000000000 000000000ff6085a
[ 2.265497] fe40: 0000000000000424 000000000000000f ffffffc006ac2680 ffffffc006acfef0
[ 2.266193] fe60: 0000000000000a20 0000000000000400 0000000000000097 0000000000000001
[ 2.266890] fe80: 0000000000000001 0000000000000000 0000000000000000 0000000000000000
[ 2.267576] fea0: 0000000000000007 ffffff80091bb000 ffffff800935a6c0 ffffff800935a000
[ 2.268273] fec0: ffffff80091f5000 ffffff80091f5718 ffffff8008c57000 0000000003454000
[ 2.268970] fee0: 0000000003457000 0000000002c45234 0000000000000000 ffffffc006acff40
[ 2.269666] ff00: ffffff8008085100 ffffffc006acff40 ffffff8008085104 0000000060000045
[ 2.270363] ff20: ffffff80091bb000 ffffff80091f5000 ffffffffffffffff ffffff8008c57000
[ 2.271059] [] el1_irq+0xb4/0x140
[ 2.271494] [] arch_cpu_idle+0x8c/0x100
[ 2.271976] [] default_idle_call+0x30/0x34
[ 2.272479] [] cpu_startup_entry+0x214/0x2ac
[ 2.272994] [] secondary_start_kernel+0x190/0x1bc
[ 2.273553] [<0000000002c45178>] 0x2c45178
[ 2.273917] CPU1: stopping
[ 2.274169] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.154-59-rockchip-g5e70f14 #4
[ 2.274863] Hardware name: ROCK PI 4B (DT)
[ 2.275225] Call trace:
[ 2.275454] [] dump_backtrace+0x0/0x220
[ 2.275935] [] show_stack+0x24/0x30
[ 2.276383] [] dump_stack+0x98/0xc0
[ 2.276839] [] handle_IPI+0x1d0/0x248
[ 2.277307] [] gic_handle_irq+0x17c/0x180
[ 2.277797] Exception stack(0xffffffc006acbe10 to 0xffffffc006acbf40)
[ 2.278368] be00: 0000003ffed57000 ffffff80091bb000
[ 2.279065] be20: 0000000000000000 ffffff800920de00 0100000000000000 000000000ff6085a
[ 2.279762] be40: 0000000000000424 000000000000000f ffffffc006ac1880 ffffffc006acbef0
[ 2.280458] be60: 0000000000000a20 0000000000000400 0000000000000086 0000000000000000
[ 2.281155] be80: 0000000000000001 0000000000000000 0000000000000000 0000000000000000
[ 2.281851] bea0: 0000000000000000 ffffff80091bb000 ffffff800935a6c0 ffffff800935a000
[ 2.282548] bec0: ffffff80091f5000 ffffff80091f5718 ffffff8008c57000 0000000003454000
[ 2.283245] bee0: 0000000003457000 0000000002c45234 0000000000000000 ffffffc006acbf40
[ 2.283941] bf00: ffffff8008085100 ffffffc006acbf40 ffffff8008085104 0000000060000045
[ 2.284638] bf20: ffffff80091bb000 ffffff80091f5000 ffffffffffffffff ffffff8008c57000
[ 2.285334] [] el1_irq+0xb4/0x140
[ 2.285768] [] arch_cpu_idle+0x8c/0x100
[ 2.286249] [] default_idle_call+0x30/0x34
[ 2.286752] [] cpu_startup_entry+0x214/0x2ac
[ 2.287267] [] secondary_start_kernel+0x190/0x1bc
[ 2.287826] [<0000000002c45178>] 0x2c45178
[ 2.288189] CPU3: stopping
[ 2.288442] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.4.154-59-rockchip-g5e70f14 #4
[ 2.289135] Hardware name: ROCK PI 4B (DT)
[ 2.289497] Call trace:
[ 2.289727] [] dump_backtrace+0x0/0x220
[ 2.290209] [] show_stack+0x24/0x30
[ 2.290667] [] dump_stack+0x98/0xc0
[ 2.291124] [] handle_IPI+0x1d0/0x248
[ 2.291592] [] gic_handle_irq+0x17c/0x180
[ 2.292082] Exception stack(0xffffffc006ad3e10 to 0xffffffc006ad3f40)
[ 2.292652] 3e00: 0000003ffed81000 ffffff80091bb000
[ 2.293349] 3e20: 0000000000000000 ffffff800920de00 0100000000000000 ffffff8009398cc0
[ 2.294046] 3e40: 0000000000000386 0000000000000000 ffffffc006ac3480 ffffffc006ad3ef0
[ 2.294742] 3e60: 0000000000000a20 0000000000000400 0000000000000001 0000000000000000
[ 2.295439] 3e80: 00003d0900007d00 000000002c00ff85 0000000000000040 0000000000000000
[ 2.296135] 3ea0: 0000000000000001 ffffff80091bb000 ffffff800935a6c0 ffffff800935a000
[ 2.296832] 3ec0: ffffff80091f5000 ffffff80091f5718 ffffff8008c57000 0000000003454000
[ 2.297529] 3ee0: 0000000003457000 0000000002c45234 0000000000000000 ffffffc006ad3f40
[ 2.298225] 3f00: ffffff8008085100 ffffffc006ad3f40 ffffff8008085104 0000000060000045
[ 2.298922] 3f20: ffffff80091bb000 ffffff80091f5000 ffffffffffffffff ffffff8008c57000
[ 2.299618] [] el1_irq+0xb4/0x140
[ 2.300052] [] arch_cpu_idle+0x8c/0x100
[ 2.300533] [] default_idle_call+0x30/0x34
[ 2.301036] [] cpu_startup_entry+0x214/0x2ac
[ 2.301551] [] secondary_start_kernel+0x190/0x1bc
[ 2.302110] [<0000000002c45178>] 0x2c45178
[ 2.302474] CRU:
[ 2.302654] 00000000: 00000044 00001201 80000000 00000108 00000007 00007f00 00000000 00000000
[ 2.303414] 00000020: 00000044 00001201 80000000 00000108 00000007 00007f00 00000000 00000000
[ 2.304174] 00000040: 00000064 00001301 8000031f 00000108 00000007 00007f00 00000000 00000000
[ 2.304933] 00000060: 000000c0 00001302 8000031f 00000008 00000007 00007f00 00000000 00000000
[ 2.305692] 00000080: 00000064 00001301 8000031f 00000108 00000007 00007f00 00000000 00000000
[ 2.306452] 000000a0: 0000004b 00001301 80000000 00000108 00000007 00007f00 00000000 00000000
[ 2.307211] 000000c0: 000000c6 00001202 8000031f 00000008 00000007 00007f00 00000000 00000000
[ 2.307970] 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.308729] 00000100: 00000100 00000404 00000140 00006404 00000083 00008581 00008320 00000141
[ 2.309488] 00000120: 00000181 00008181 00000141 00000141 00004141 00008343 00003185 00000500
[ 2.310248] 00000140: 0000010f 00000300 00004a87 0000033f 00009381 00008387 00001103 00005282
[ 2.311007] 00000160: 00008247 00000187 00001743 000002dc 00000300 00000300 00000300 00000000
[ 2.311766] 00000180: 00006300 00000200 00000200 00000200 00000200 00000200 00003f3f 00000081
[ 2.312525] 000001a0: 00000000 00000000 00004141 00000421 00008700 000002dc 00000004 00000381
[ 2.313285] 000001c0: 00000381 00000001 00000003 00000087 00000087 00000141 00000141 00008181
[ 2.314044] 000001e0: 00008323 00000007 00008f1f 00008f8f 00008f8f 00008787 00008787 00008787
[ 2.314803] 00000200: 000000cf 000000cf 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.315562] 00000220: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.316320] 00000240: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.317079] 00000260: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.317839] 00000280: 0bb8ea60 0bb8ea60 0bb8ea60 0bb8ea60 0bb8ea60 0bb8ea60 0bb8ea60 0bb8ea60
[ 2.318598] 000002a0: 0bb8ea60 0bb8ea60 0bb8ea60 0bb8ea60 00000000 00000000 00000000 00000000
[ 2.319356] 000002c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.320115] 000002e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.320874] 00000300: 00000000 00000000 00000202 00000000 00000000 00000000 00000004 00000000
[ 2.321633] 00000320: 00000000 00000000 00000000 00000000 00000000 000000f0 00000000 00000000
[ 2.322392] 00000340: 00000000 00000000 00000000 00000000 00000c04 00000000 00000000 00000000
[ 2.323151] 00000360: 00000000 00000020 00000000 00000000 00000000 00000000 00000000 00000038
[ 2.323910] 00000380: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.324669] 000003a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.325428] 000003c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.326186] 000003e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.326945] 00000400: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.327704] 00000420: 00000000 00007070 00000000 00000014 00000000 00000000 00000000 00000000
[ 2.328463] 00000440: 00000000 00000000 00000000 00000000 00003000 00000000 00000000 00000000
[ 2.329222] 00000460: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.329980] 00000480: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.330739] 000004a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.331498] 000004c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.332256] 000004e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.333015] 00000500: 00000000 00000000 00640064 00000000 00000003 00000000 00000000 00000000
[ 2.333774] 00000520: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.334532] 00000540: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.335291] 00000560: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.336047] 00000580: 00000004 00000000 00000004 00000000 00000004
[ 2.336591] PMU CRU:
[ 2.336803] 00000000: 000000a9 00001203 80000000 00000108 00000007 00007f00 00000000 00000000
[ 2.337564] 00000020: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.338324] 00000040: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.339084] 00000060: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.339845] 00000080: 0000060d 00001986 00000303 00000003 000002dc 00000200 0bb8ea60 00010014
[ 2.340606] 000000a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.341366] 000000c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.342127] 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.342887] 00000100: 00000100 00000018 0000000f 00000000 00000024 00000000 00000000 00000000
[ 2.343644] 00000120: 00000000 00000000 00000000 00000000 00000003
[ 2.344189] PMU:
[ 2.344367] 00000000: 00000000 00000000 00000000 00000000 00000000 00000300 00000300 00000000
[ 2.345127] 00000020: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.345887] 00000040: 00000000 00000000 00000000 00000000 00000000 0000033e 00000000 00000000
[ 2.346648] 00000060: 00000000 00000000 00000000 00000010 00000000 00007e00 00000000 28800000
[ 2.347409] 00000080: 000003c0 00011940 00005dc0 000003c0 00005dc0 00000060 0000000f 00000018
[ 2.348170] 000000a0: 00000018 00000018 00000018 00000006 00000006 00005dc0 00005dc0 00005dc0
[ 2.348931] 000000c0: 00000000 00000000 00000000 00000000 00000000 00000000 3fffffff 00000000
[ 2.349691] 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.350441] Kernel Offset: disabled
[ 2.350756] Memory Limit: none
[ 2.351033] —[ end Kernel panic - not syncing: Can not allocate SWIOTLB buffer earlier and can’t now provide you with the DMA bounce buffe
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