I worked on orin # R35 (release), REVISION: 1.0, GCID: 31250864, BOARD: t186ref, EABI: aarch64.
When multiple cameras are turned on at the same time, the following errors may occur and cause crash.
[ 2343.408608] ------------[ cut here ]------------
[ 2343.408612] channel context at 1 is busy
[ 2343.408635] WARNING: CPU: 0 PID: 4282 at /home/zh/work/titan5/jet-pack-5.0.2/src/kernel/nvidia/drivers/platform/tegra/rtcpu/capture-ivc.c:176 tegra_capture_ivc_notify_chan_id+0x188/0x1b0
[ 2343.408636] Modules linked in: nvidia_modeset(OE) fuse(E) option(E) usb_wwan(E) usbserial(E) cdc_acm(E) xt_conntrack(E) switch(E) xt_MASQUERADE(E) can_raw(E) nf_conntrack_netlink(E) can(E) nfnetlink(E) mttcan(E) xt_addrtype(E) iptable_filter(E) iptable_nat(E) nf_nat(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E) libcrc32c(E) br_netfilter(E) lzo_rle(E) lzo_compress(E) zram(E) overlay(E) mv88e6xxx(E) ramoops(E) reed_solomon(E) dsa_core(E) loop(E) camera(E) ox03c10(E) imx390(E) nvgpu(E) hid_logitech_hidpp(E) snd_soc_tegra186_asrc(E) aes_ce_blk(E) snd_soc_tegra210_ope(E) snd_soc_tegra186_dspk(E) snd_soc_tegra210_iqc(E) snd_soc_tegra210_mvc(E) crypto_simd(E) snd_soc_tegra186_arad(E) cryptd(E) snd_soc_tegra210_afc(E) mcp251xfd(E) snd_soc_tegra210_dmic(E) aes_ce_cipher(E) snd_soc_tegra210_adx(E) snd_soc_tegra210_amx(E) ghash_ce(E) snd_soc_tegra210_admaif(E) can_dev(E) snd_soc_tegra210_i2s(E) sha2_ce(E) snd_soc_tegra210_mixer(E) snd_soc_tegra210_sfc(E) snd_soc_tegra_pcm(E) sha256_arm64(E)
[ 2343.408688] sha1_ce(E) pwm_fan(E) snd_soc_tegra_machine_driver(E) pwm_gpio(E) snd_soc_spdif_tx(E) input_leds(E) userspace_alert(E) snd_soc_tegra210_adsp(E) snd_soc_tegra_utils(E) gw5200(E) snd_soc_simple_card_utils(E) max96712(E) max9295(E) max9296(E) snd_hda_codec_hdmi(E) hid_logitech_dj(E) snd_hda_tegra(E) ina3221(E) nct1008(E) tegra_bpmp_thermal(E) ofpart(E) nvadsp(E) snd_hda_codec(E) nvethernet(E) cmdlinepart(E) snd_hda_core(E) snd_soc_tegra210_ahub(E) nvidia(OE) nvmap(E) snd_soc_sgtl5000(E) qspi_mtd(E) tegra210_adma(E) mtd(E) spi_tegra114(E) binfmt_misc(E) max2008X(E) spidev(E) ip_tables(E) x_tables(E)
[ 2343.408723] CPU: 0 PID: 4282 Comm: vi-output, gw5X Tainted: G OE 5.10.104 #11
[ 2343.408724] Hardware name: Jetson AGX Orin (DT)
[ 2343.408727] pstate: 40c00009 (nZcv daif +PAN +UAO -TCO BTYPE=--)
[ 2343.408729] pc : tegra_capture_ivc_notify_chan_id+0x188/0x1b0
[ 2343.408731] lr : tegra_capture_ivc_notify_chan_id+0x188/0x1b0
[ 2343.408731] sp : ffff80002435bad0
[ 2343.408732] x29: ffff80002435bad0 x28: 0000000000000000
[ 2343.408734] x27: 0000000000001043 x26: ffff3045739a3000
[ 2343.408735] x25: ffff3045da8fe6b8 x24: ffff3045043dc088
[ 2343.408737] x23: 0000000000000057 x22: ffff3045043dc080
[ 2343.408738] x21: ffff3045043dcb60 x20: 0000000000000001
[ 2343.408739] x19: 0000000000000057 x18: 0000000000000000
[ 2343.408741] x17: 0000000000000000 x16: ffffcfd1001ac5f0
[ 2343.408742] x15: ffff3045808b2270 x14: ffffffffffffffff
[ 2343.408743] x13: ffffcfd100fb6de8 x12: ffffcfd100fb6a1b
[ 2343.408745] x11: 0000000000000000 x10: 0000000000000a80
[ 2343.408746] x9 : ffff80002435bad0 x8 : 2073692031207461
[ 2343.408748] x7 : 20747865746e6f63 x6 : 00000000358682ed
[ 2343.408749] x5 : ffff304c2c527958 x4 : 0000000100000220
[ 2343.408751] x3 : 0000000000000001 x2 : ffff304c2c527960
[ 2343.408752] x1 : 47a3908bac4de200 x0 : 0000000000000000
[ 2343.408754] Call trace:
[ 2343.408757] tegra_capture_ivc_notify_chan_id+0x188/0x1b0
[ 2343.408760] vi_capture_setup+0x35c/0x670
[ 2343.408765] tegra_channel_capture_setup+0x24c/0x2b8
[ 2343.408767] vi5_channel_error_recover+0x1dc/0x210
[ 2343.408769] tegra_channel_error_recover+0x74/0x90
[ 2343.408771] tegra_channel_kthread_capture_dequeue+0x124/0x1e0
[ 2343.408774] kthread+0x148/0x170
[ 2343.408777] ret_from_fork+0x10/0x18
[ 2343.408779] ---[ end trace c0c2181249ce35da ]---
[ 111.960063] flags: 0x8000000000000000()
[ 111.964010] raw: 8000000000000000 dead000000000100 dead000000000122 ffff1c33c0003900
[ 111.971984] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 111.979960] page dumped because: non-NULL mapping
[ 111.984951] Disabling lock debugging due to kernel taint
[ 111.990704] tegra-camrtc-capture-vi tegra-capture-vi: corr_err: discarding frame 0, flags: 0, err_data 131072, datatype 1e
[ 112.002202] tegra-camrtc-capture-vi tegra-capture-vi: uncorr_err: flags 2, err_data 0
[ 112.714643] bwmgr API not supported
[ 112.719254] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000520
[ 112.728456] Mem abort info:
[ 112.731382] ESR = 0x96000045
[ 112.734556] EC = 0x25: DABT (current EL), IL = 32 bits
[ 112.740134] SET = 0, FnV = 0
[ 112.743336] EA = 0, S1PTW = 0
[ 112.746635] Data abort info:
[ 112.749662] ISV = 0, ISS = 0x00000045
[ 112.753687] CM = 0, WnR = 1
[ 112.756915] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000195e4a000
[ 112.763609] [0000000000000520] pgd=00000001a6db5003, p4d=00000001a6db5003, pud=0000000000000000
[ 112.772666] Internal error: Oops: 96000045 [#1] PREEMPT SMP
[ 112.778404] Modules linked in: nvidia_modeset(OE) fuse(E) option(E) usb_wwan(E) usbserial(E) cdc_acm(E) switch(E) xt_conntrack(E) can_raw(E) can(E))
[ 112.778469] sha1_ce(E) pwm_gpio(E) snd_soc_tegra_machine_driver(E) pwm_fan(E) snd_soc_spdif_tx(E) userspace_alert(E) snd_soc_tegra210_adsp(E) inpu)
[ 112.926305] CPU: 0 PID: 3356 Comm: gst-launch-1.0 Tainted: G B W OE 5.10.104 #11
[ 112.934809] Hardware name: Jetson AGX Orin (DT)
[ 112.939472] pstate: a0400009 (NzCv daif +PAN -UAO -TCO BTYPE=--)
[ 112.945655] pc : tegra_channel_ec_close+0x34/0x60
[ 112.950495] lr : tegra_channel_ec_close+0x18/0x60
[ 112.955331] sp : ffff800022723a90
[ 112.958744] x29: ffff800022723a90 x28: ffff1c3442e1a800
[ 112.964210] x27: 0000000040045613 x26: 0000000000000000
[ 112.969674] x25: ffff800022723d08 x24: ffff1c3ac08ed1f8
[ 112.975140] x23: ffff1c34393b3a00 x22: ffff800022723d08
[ 112.980606] x21: ffff1c3ac08f60a0 x20: ffff1c3ac08ed080
[ 112.986071] x19: ffff1c3ac08f60a0 x18: 0000000000000010
[ 112.991535] x17: 0000000000000000 x16: ffffaaa9db02ddb0
[ 112.996999] x15: ffff1c34393b3f70 x14: 0000000000000000
[ 113.002463] x13: 0000000000000020 x12: 0101010101010101
[ 113.007930] x11: 0000000000000003 x10: 0101010101010101
[ 113.013393] x9 : 00000000fffffffe x8 : 5f35697363203a30
[ 113.018858] x7 : 3030303061353140 x6 : 0000000107613477
[ 113.024323] x5 : 00ffffffffffffff x4 : 001be795d0000000
[ 113.029787] x3 : 0000000000000017 x2 : ffff1c3ac08f63f8
[ 113.035253] x1 : 0000000000000520 x0 : fffffffffffffff8
[ 113.040720] Call trace:
[ 113.043232] tegra_channel_ec_close+0x34/0x60
[ 113.047712] vi5_power_off+0x34/0x60
[ 113.051392] tegra_channel_stop_streaming+0x48/0x60
[ 113.056411] __vb2_queue_cancel+0x3c/0x220
[ 113.060628] vb2_core_streamoff+0x30/0xd0
[ 113.064757] vb2_streamoff+0x30/0x80
[ 113.068436] vb2_ioctl_streamoff+0x54/0x60
[ 113.072653] v4l_streamoff+0x3c/0x50
[ 113.076333] __video_do_ioctl+0x180/0x3f0
[ 113.080463] video_usercopy+0x27c/0x790
[ 113.084409] video_ioctl2+0x3c/0x180
[ 113.088088] v4l2_ioctl+0x64/0x90
[ 113.091503] __arm64_sys_ioctl+0xa8/0xf0
[ 113.095538] el0_svc_common.constprop.0+0x7c/0x1c0
[ 113.100468] do_el0_svc+0x34/0xa0
[ 113.103882] el0_svc+0x1c/0x30
[ 113.107027] el0_sync_handler+0xa8/0xb0
[ 113.110973] el0_sync+0x16c/0x180
[ 113.114386] Code: d1002000 54000140 d503201f 9114a001 (a9007c3f)
[ 113.120659] ---[ end trace 29eaeba40b6ceae5 ]---
[ 113.130244] Kernel panic - not syncing: Oops: Fatal exception
[ 113.136149] SMP: stopping secondary CPUs
[ 113.140296] Kernel Offset: 0x2aa9caf40000 from 0xffff800010000000
[ 113.146564] PHYS_OFFSET: 0xffffe3cd40000000
[ 113.150858] CPU features: 0x0040006,4a80aa38
[ 113.155255] Memory Limit: none
[ 113.163217] ---[ end Kernel panic - not syncing: Oops: Fatal exception ]---
Could you please help solve it? Thank you.