I'm getting this stack trace in dmesg, but I'm unsure what it means or how to figure out what it means. As far as I can tell, the code running on the PRU is working. I'm generating a 100Khz signal on a direct output, and am able to successfully measure this signal. The Beaglebone is locking up, though, and I believe this stack trace is being spammed so heavily that the logging is taking over the CPU and my ssh shell gets locked out.
I'm using this device tree overlay: https://github.com/PocketNC/BeagleBoard-DeviceTrees/blob/pocketnc-ai-test/src/arm/am5729-beagleboneai-pocketnc-pro.dts The code I'm running is implemented in PRU Assembly that is assembled with pasm. pasm outputs a .bin file and I need a .elf file for running it with remoteproc, so I'm jumping through some hoops to do that conversion. The elf file does seem to work, but I'm not sure if I need to do more to ensure I'm specifying what resources I need access to or something like that. I can go into more detail if need be. The stack trace is below. Any ideas about what is going on are appreciated! [ 168.153783] ------------[ cut here ]------------ [ 168.153829] WARNING: CPU: 0 PID: 0 at drivers/bus/omap_l3_noc.c:147 l3_interrupt_handler+0x27c/0x39c [ 168.153851] 44000000.ocp:L3 Custom Error: MASTER PRUSS2 PRU1 TARGET L4_PER1_P3 (Idle): Data Access in Supervisor mode during Functional access [ 168.153865] Modules linked in: xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 rpmsg_rpc rpmsg_proto bnep btsdio bluetooth ecdh_generic brcmfmac pvrsrvkm(O) brcmutil cfg80211 uio_pruss_shmem evdev joydev stmpe_adc omap_remoteproc virtio_rpmsg_bus rpmsg_core 8021q garp mrp stp llc iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat usb_f_acm nf_conntrack u_serial usb_f_ecm usb_f_mass_storage iptable_mangle iptable_filter usb_f_rndis u_ether libcomposite cmemk(O) uio_pdrv_genirq uio spidev pruss_soc_bus pru_rproc pruss pruss_intc ip_tables x_tables [ 168.154474] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W O 4.14.108-ti-r119 #1 [ 168.154490] Hardware name: Generic DRA74X (Flattened Device Tree) [ 168.154538] [<c0113180>] (unwind_backtrace) from [<c010d690>] (show_stack+0x20/0x24) [ 168.154575] [<c010d690>] (show_stack) from [<c0ce54f4>] (dump_stack+0x80/0x94) [ 168.154609] [<c0ce54f4>] (dump_stack) from [<c013f5b8>] (__warn+0xf8/0x110) [ 168.154636] [<c013f5b8>] (__warn) from [<c013f628>] (warn_slowpath_fmt+0x58/0x74) [ 168.154667] [<c013f628>] (warn_slowpath_fmt) from [<c0741e10>] (l3_interrupt_handler+0x27c/0x39c) [ 168.154703] [<c0741e10>] (l3_interrupt_handler) from [<c01abcbc>] (__handle_irq_event_percpu+0xbc/0x280) [ 168.154734] [<c01abcbc>] (__handle_irq_event_percpu) from [<c01abebc>] (handle_irq_event_percpu+0x3c/0x8c) [ 168.154761] [<c01abebc>] (handle_irq_event_percpu) from [<c01abf54>] (handle_irq_event+0x48/0x6c) [ 168.154792] [<c01abf54>] (handle_irq_event) from [<c01aff78>] (handle_fasteoi_irq+0xc8/0x17c) [ 168.154822] [<c01aff78>] (handle_fasteoi_irq) from [<c01aad7c>] (generic_handle_irq+0x34/0x44) [ 168.154850] [<c01aad7c>] (generic_handle_irq) from [<c01ab390>] (__handle_domain_irq+0x8c/0xfc) [ 168.154879] [<c01ab390>] (__handle_domain_irq) from [<c01015e0>] (gic_handle_irq+0x4c/0x88) [ 168.154908] [<c01015e0>] (gic_handle_irq) from [<c0d02bcc>] (__irq_svc+0x6c/0xa8) [ 168.154925] Exception stack(0xc1501ed8 to 0xc1501f20) [ 168.154946] 1ec0: 00000001 00000000 [ 168.154973] 1ee0: fe600000 00000000 c1500000 c1504e60 c1504dfc c14cbb78 c1501f48 00000000 [ 168.154997] 1f00: 00000000 c1501f34 c1501f14 c1501f28 c012fcb8 c0109768 600f0013 ffffffff [ 168.155031] [<c0d02bcc>] (__irq_svc) from [<c0109768>] (arch_cpu_idle+0x30/0x4c) [ 168.155061] [<c0109768>] (arch_cpu_idle) from [<c0d02044>] (default_idle_call+0x30/0x3c) [ 168.155092] [<c0d02044>] (default_idle_call) from [<c018cc6c>] (do_idle+0x180/0x214) [ 168.155124] [<c018cc6c>] (do_idle) from [<c018d00c>] (cpu_startup_entry+0x28/0x2c) [ 168.155156] [<c018d00c>] (cpu_startup_entry) from [<c0cfb4b0>] (rest_init+0xdc/0xe0) [ 168.155194] [<c0cfb4b0>] (rest_init) from [<c1400eb8>] (start_kernel+0x434/0x45c) [ 168.155217] ---[ end trace d9047b952a20ba7f ]--- -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/fde6b3e0-1a1d-43d5-8f78-14d604a7b1fa%40googlegroups.com.
