Hi everyone, I am currently trying to get the current Linux 4.6.7-rt13 running on an Intel QUARK/GalileoGen2 Board and got the same repeating stacktrace when booting. This does not happen in the vanilla kernel. For 4.6.7-rt13 I used this Kernel commit: f1cf4c43c5ff76957459ea90dc39dcd93a5d0ebd Also tried the 4.4.19-rt27 and 4.4.20-rt19 with the same result. Does anyone know what could cause this and how to fix it? Thanks and have a nice day, Claudius Full bootlog: http://pastebin.com/qhSQdHYY Kernel config: http://pastebin.com/XFKihFr4 Stacktrace: [ 7.165722] irq 17: nobody cared (try booting with the "irqpoll" option) [ 7.165752] CPU: 0 PID: 82 Comm: irq/17-pxa2xx-s Not tainted 4.6.7- rt13-yocto-preempt-rt #1 [ 7.165762] Hardware name: Intel Corp. QUARK/GalileoGen2, BIOS 0x01000400 01/01/2014 [ 7.165804] cd65db78 cd65db78 cd433f4c c13a0c54 cd433f68 c10888cd c18829d8 00000011 [ 7.165839] cd65db40 cd65db40 00000011 cd433f8c c1088c4f cd65db40 00000020 cd798a40 [ 7.165872] cd433f84 cd65db40 00000020 00000000 cd433fd8 c10866c3 00000000 00000007 [ 7.165877] Call Trace: [ 7.165921] [<c13a0c54>] dump_stack+0x16/0x22 [ 7.165967] [<c10888cd>] __report_bad_irq.isra.0+0x2d/0x110 [ 7.166008] [<c1088c4f>] note_interrupt+0x22f/0x270 [ 7.166051] [<c10866c3>] handle_irq_event_percpu+0xd3/0x240 [ 7.166091] [<c10878b4>] ? irq_thread+0xc4/0x1b0 [ 7.166137] [<c10894e0>] ? handle_edge_irq+0x170/0x170 [ 7.166173] [<c1086870>] handle_irq_event+0x40/0x90 [ 7.166212] [<c1089570>] handle_fasteoi_irq+0x90/0x190 [ 7.166251] [<c101a6ae>] handle_irq+0x5e/0x70 [ 7.166299] <IRQ> [<c1755822>] do_IRQ+0x42/0xd0 [ 7.166334] [<c1754f8c>] common_interrupt+0x2c/0x40 [ 7.166370] [<c105043d>] ? __local_bh_enable+0xd/0x70 [ 7.166405] [<c1080000>] ? wakeup_count_show+0x40/0x50 [ 7.166443] [<c10878b4>] ? irq_thread+0xc4/0x1b0 [ 7.166485] [<c1087680>] ? irq_finalize_oneshot.part.1+0x160/0x160 [ 7.166521] [<c1087720>] ? irq_thread_fn+0x40/0x40 [ 7.166559] [<c10877f0>] ? irq_thread_dtor+0xd0/0xd0 [ 7.166596] [<c1066cba>] kthread+0x9a/0xb0 [ 7.166636] [<c1754730>] ret_from_kernel_thread+0x20/0x40 [ 7.166666] [<c1066c20>] ? kthread_worker_fn+0x130/0x130 [ 7.166689] handlers: [ 7.166740] [<c10868c0>] irq_default_primary_handler threaded [<c14d0360>] ssp_int [ 7.166749] Disabling IRQ #17 -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-54 Fax: (+49)-8142-66989-80 Email: ch@xxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html