Philippe Gerum <[email protected]> writes:
> Jan Kiszka <[email protected]> writes: > >> Hi Philippe, >> >> seems we have some early boot problem with Dovetail on the BBB (while >> qemu-arm is fine), see [1] vs. [2] (disabled Xenomai for [2], see [3]). >> Do you happen to have such a target around? Or a reference config that >> is supposed to work? >> >> Jan >> >> [1] https://source.denx.de/Xenomai/xenomai-images/-/jobs/277392#L444 >> [2] https://source.denx.de/Xenomai/xenomai-images/-/jobs/277821#L444 >> [3] >> https://source.denx.de/Xenomai/xenomai-images/-/commit/d48c28a82f16b5141948f23cc5bce244217eda15 > > Yes, I have that one at hand, my Kconfig attached. No issue with booting > EVL on the latest Dovetail/5.10-LTS. I'll give a try to Dovetail+Cobalt > later today. (dtb issue in the CI?) > > [ 0.000000] Booting Linux on physical CPU 0x0 > [ 0.000000] Linux version 5.10.42-00590-gcd7b61ff545b (rpm@pyro) > (arm-linux-gnueabihf-gcc (Linaro GCC 7.5-2019.12) 7.5.0, GNU ld > (Linaro_Binutils-2019.12) 2.28.2.20170706) #1 PREEMPT IRQPIPE Thu Jun 10 > 09:08:56 CEST 2021 > [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d > [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing > instruction cache > [ 0.000000] OF: fdt: Machine model: TI AM335x BeagleBone Black > [ 0.000000] Memory policy: Data cache writeback > [ 0.000000] efi: UEFI not found. > [ 0.000000] cma: Reserved 64 MiB at 0x9b800000 > [ 0.000000] Zone ranges: > [ 0.000000] DMA [mem 0x0000000080000000-0x000000009fdfffff] > [ 0.000000] Normal empty > [ 0.000000] HighMem empty > [ 0.000000] Movable zone start for each node > [ 0.000000] Early memory node ranges > [ 0.000000] node 0: [mem 0x0000000080000000-0x000000009fdfffff] > [ 0.000000] Initmem setup node 0 [mem > 0x0000000080000000-0x000000009fdfffff] > [ 0.000000] CPU: All CPU(s) started in SVC mode. > [ 0.000000] AM335X ES2.1 (sgx neon) > [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 129540 > [ 0.000000] Kernel command line: root=/dev/nfs rw > nfsroot=192.168.3.1:/var/lab/nfsroot/generic/armv7,v3,tcp panic=1 > console=ttyS0,115200n8 ip=dhcp > [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 > bytes, linear) > [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes, > linear) > [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off > [ 0.000000] Memory: 428160K/522240K available (13312K kernel code, 1712K > rwdata, 5228K rodata, 2048K init, 411K bss, 28544K reserved, 65536K > cma-reserved, 0K highmem) > [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 > [ 0.000000] rcu: Preemptible hierarchical RCU implementation. > [ 0.000000] rcu: RCU event tracing is enabled. > [ 0.000000] Trampoline variant of Tasks RCU enabled. > [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 > jiffies. > [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 > [ 0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 5.0) with 128 > interrupts > [ 0.000000] random: get_random_bytes called from start_kernel+0x330/0x4c4 > with crng_init=0 > [ 0.004513] IRQ pipeline enabled Using wip/dovetail over dovetail-v5.10.y (.42 so far), bbb boots fine with Dovetail fully enabled, Cobalt in stopped mode. Enabling the core once booted, then running latency crashes in a fairly trivial way. It looks like the paint is still wet there: ~ # corectl --start [ 34.405086] [Xenomai] services started ~ # ~ # ~ # latency == Sampling period: 1000 us == Test mode: periodic user-mode task == All results in micro[ 37.067419] 8<--- cut here --- [ 37.067431] Unable to handle kernel NULL pointer dereference at virtual address 000000c0 [ 37.067435] pgd = 49eec2f1 [ 37.067439] [000000c0] *pgd=83b78831, *pte=00000000, *ppte=00000000 [ 37.067457] Internal error: Oops: 17 [#1] PREEMPT SMP ARM [ 37.067461] Modules linked in: [ 37.067468] CPU: 0 PID: 123 Comm: sampling-120 Not tainted 5.10.42-00113-gbc20d0c23c02-dirty #10 [ 37.067473] Hardware name: Generic AM33XX (Flattened Device Tree) [ 37.067476] IRQ stage: Linux [ 37.067480] PC is at pipeline_set_timer_shot+0x24/0xd8 [ 37.067484] LR is at pipeline_set_timer_shot+0x14/0xd8 [ 37.067488] pc : [<c0402ce0>] lr : [<c0402cd0>] psr: 20070093 [ 37.067492] sp : c3abfe58 ip : 10e28280 fp : c3abe000 [ 37.067496] r10: c1a8fab8 r9 : 00000000 r8 : 000f4240 [ 37.067500] r7 : 00000008 r6 : a03fb0a9 r5 : 000edea5 r4 : e147f638 [ 37.067505] r3 : 00000000 r2 : 1e04f000 r1 : c1526704 r0 : 00000000 [ 37.067509] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none [ 37.067513] Control: 10c5387d Table: 83b50019 DAC: 00000051 [ 37.067518] Process sampling-120 (pid: 123, stack limit = 0x86f5afaa) [ 37.067522] Stack: (0xc3abfe58 to 0xc3ac0000) [ 37.067526] fe40: e147f638 df9ab790 [ 37.067531] fe60: a03fb0a9 00000008 000f4240 00000000 c1a8fab8 c040eef0 c3a54100 df9a6840 [ 37.067536] fe80: 000f01f6 00000000 00000000 fffffffd 00000002 3574c753 c3abff04 00000000 [ 37.067541] fea0: 00000000 00000000 00000008 000f4240 00000001 00000001 00000000 c0425e64 [ 37.067546] fec0: 000f4240 00000000 00000001 00000001 e147f600 00000000 c3abff08 e147f638 [ 37.067550] fee0: c3abff28 c04276ec c3abe000 ffffe000 00000003 00000001 00000000 00000051 [ 37.067555] ff00: 00000000 c0427848 00000000 00000000 00000000 02e07ea8 00000000 00000000 [ 37.067560] ff20: 00000000 c042530c 00000000 00000000 000f4240 c3abffb0 00000025 00000000 [ 37.067565] ff40: 02e07ea8 000000f0 00000000 3574c753 c1a8bd40 c3abffb0 00000006 00000000 [ 37.067570] ff60: e147f808 00000000 c3abe000 c3abff78 c0427784 c0423840 00000000 c1baa36b [ 37.067574] ff80: c3abff70 c3a54100 00000078 00000000 00000000 b63d8db8 100f0042 c0300370 [ 37.067579] ffa0: c3abe000 00000007 00000000 c0300264 1000003a 00000003 00000001 b63d8db8 [ 37.067584] ffc0: 00000000 00000000 b63d8db8 000f0042 b63d8e1c 00000001 bea8ba5c 00000000 [ 37.067589] ffe0: 00000001 b63d8d48 00000003 b6ebc488 20070030 1000003a 00000000 00000000 [ 37.067594] [<c0402ce0>] (pipeline_set_timer_shot) from [<c040eef0>] (xntimer_start+0x164/0x260) [ 37.067599] [<c040eef0>] (xntimer_start) from [<c0425e64>] (__cobalt_timer_setval+0xd4/0x100) [ 37.067604] [<c0425e64>] (__cobalt_timer_setval) from [<c04276ec>] (__cobalt_timerfd_settime+0xfc/0x194) [ 37.067609] [<c04276ec>] (__cobalt_timerfd_settime) from [<c0427848>] (CoBaLt_timerfd_settime+0xc4/0x18c) [ 37.067614] [<c0427848>] (CoBaLt_timerfd_settime) from [<c0423840>] (handle_head_syscall+0x13c/0x30c) [ 37.067619] [<c0423840>] (handle_head_syscall) from [<c0300264>] (fastcall_try+0x10/0x24) [ 37.067623] Exception stack(0xc3abffb0 to 0xc3abfff8) [ 37.067627] ffa0: 1000003a 00000003 00000001 b63d8db8 [ 37.067632] ffc0: 00000000 00000000 b63d8db8 000f0042 b63d8e1c 00000001 bea8ba5c 00000000 [ 37.067636] ffe0: 00000001 b63d8d48 00000003 b6ebc488 20070030 1000003a [ 37.067641] Code: e3053974 e34c3195 ee1d2f90 e7933002 (e59340c0) [ 37.067645] ---[ end trace 09d1faca36a5025f ]--- seconds warming up... NOTE: imx6qp is fine booting with Cobalt enabled. Go figure. NOTE2: we cannot build the bbb kernel with SMP support off. I'll send a patch to fix this. -- Philippe.
