-rt kernel crash 4.14.91-rt49+

[adambarta]

cmdline contains

dwc_otg.lpm_enable=0 dwc_otg.fiq_enable=0 dwc_otg.fiq_fsm_enable=0 dwc_otg.nak_holdoff=0 console=serial0,115200 elevator=deadline

[ 2.535232] irq 53: nobody cared (try booting with the "irqpoll" option)
[ 2.535250] CPU: 0 PID: 82 Comm: irq/53-bcm2835- Not tainted 4.14.91-rt49+ #2
[ 2.535254] Hardware name: BCM2835
[ 2.535259] Backtrace:
[ 2.535312] [] (dump_backtrace) from [] (show_stack+0x18/0x1c)
[ 2.535326] r7:00000035 r6:d700c600 r5:d700c600 r4:d700c600
[ 2.535359] [] (show_stack) from [] (dump_stack+0x20/0x28)
[ 2.535391] [] (dump_stack) from [] (__report_bad_irq+0x2c/0x118)
[ 2.535410] [] (__report_bad_irq) from [] (note_interrupt+0x23c/0x294)
[ 2.535426] r9:d700a000 r8:d6415eb0 r7:00000035 r6:d700c600 r5:00000000 r4:d700c600
[ 2.535443] [] (note_interrupt) from [] (handle_irq_event_percpu+0x6c/0x84)
[ 2.535459] r10:ffffe000 r9:d700a000 r8:d6415eb0 r7:00000002 r6:d700c600 r5:00000000
[ 2.535465] r4:c005c57c r3:00000000
[ 2.535481] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x54/0x98)
[ 2.535493] r7:00000001 r6:00000000 r5:c09b6114 r4:d700c600
[ 2.535510] [] (handle_irq_event) from [] (handle_level_irq+0xb0/0x17c)
[ 2.535518] r5:c09b6114 r4:d700c600
[ 2.535535] [] (handle_level_irq) from [] (generic_handle_irq+0x28/0x3c)
[ 2.535542] r5:c09b6114 r4:00000035
[ 2.535557] [] (generic_handle_irq) from [] (__handle_domain_irq+0x64/0xdc)
[ 2.535574] [] (__handle_domain_irq) from [] (bcm2835_handle_irq+0x34/0x3c)
[ 2.535589] r9:d6414000 r8:c005c674 r7:d6415ee4 r6:ffffffff r5:c0987b84 r4:d6415eb0
[ 2.535615] [] (bcm2835_handle_irq) from [] (__irq_svc+0x58/0xa0)
[ 2.535623] Exception stack(0xd6415eb0 to 0xd6415ef8)
[ 2.535635] 5ea0: c0987b84 d8800210 d700c600 00400000
[ 2.535649] 5ec0: d700c600 d6bdba00 d700c610 ffffe000 c005c674 c09b6ab9 ffffe000 d6415f1c
[ 2.535660] 5ee0: d6415ed0 d6415f00 c005e95c c005c57c 80000113 ffffffff
[ 2.535668] r5:80000113 r4:c005c57c
[ 2.535686] [] (irq_finalize_oneshot.part.0) from [] (irq_forced_thread_fn+0x78/0xa0)
[ 2.535698] r7:d700c600 r6:00000000 r5:d6bdba00 r4:d700c600
[ 2.535714] [] (irq_forced_thread_fn) from [] (irq_thread+0x104/0x1d4)
[ 2.535725] r7:d700c600 r6:00000001 r5:ffffe000 r4:d6bdba00
[ 2.535749] [] (irq_thread) from [] (kthread+0x144/0x15c)
[ 2.535765] r10:d7111c64 r9:c005c8cc r8:d6bdba00 r7:d6414000 r6:00000000 r5:d6bdd2e0
[ 2.535769] r4:d6bdba40
[ 2.535788] [] (kthread) from [] (ret_from_fork+0x14/0x34)
[ 2.535803] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0040884
[ 2.535808] r4:d6bdd2e0
[ 2.535810] handlers:
[ 2.535820] [] irq_default_primary_handler threaded [] bcm2835_auxirq_handler
[ 2.535849] Disabling IRQ #53

[TiejunChina]

I have not seen this on my pi3 b. But you might try this https://patchwork.kernel.org/cover/10741389/

[pelwell]

We can backport when that series (or just that commit) is accepted upstream.

[adambarta]

Yes this is on PI Zero W on PI 3 and PI Zero non W everything works.

[JamesH65]

It appears that the patches referred to have not yet been accepted upstream, so not sure how we proceed on this.