[Xenomai] interrupt on edge problem, unexpected IRQ trap

Greg Gallagher greg at embeddedgreg.com
Mon Feb 26 16:37:41 CET 2018


Can you provide what version of Xenomai you are using and what ipipe
patch you are using?  It also may be helpful if you could provide some
sort of sample code that reproduces the problem.

-Greg

On Mon, Feb 26, 2018 at 8:46 AM,
<branislav.sasic at automatika.imp.bg.ac.rs> wrote:
> Hello,
>
> I have a problem with new I-pipe patch, which was not existing with legacy
> patch on 3.14 kernel, on BeagleBone platform.
>
> When GPIO pin is configured as input with edge interrupt enable, on IRQ
> occurrence the following message appears:
>
>
> [  303.331386] irq 88, desc: dc1be400, depth: 0, count: 0, unhandled: 0
> [  303.331401] ->handle_irq():  c01a810c,
> [  303.331435] handle_edge_irq+0x0/0x194
> [  303.331442] ->irq_data.chip(): dc097b50,
> [  303.331454] 0xdc097b50
> [  303.331461] ->action(): da097380
> [  303.331467] ->action->handler(): c078dce4,
> [  303.331483] gpio_sysfs_irq+0x0/0x24
> [  303.331493]    IRQ_NOPROBE set
> [  303.331503] unexpected IRQ trap at vector 58
>
> [  303.335814] ------------[ cut here ]------------
> [  303.335832] WARNING: CPU: 0 PID: 0 at kernel/irq/chip.c:883
> __ipipe_ack_bad_irq+0x3c/0x48
> [  303.335839] Modules linked in:
> [  303.335863] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.82 #2
> [  303.335871] Hardware name: Generic AM33XX (Flattened Device Tree)
> [  303.335878] I-pipe domain: Linux
> [  303.335918] [<c0113520>] (unwind_backtrace) from [<c010d320>]
> (show_stack+0x20/0x24)
> [  303.335946] [<c010d320>] (show_stack) from [<c073c99c>]
> (dump_stack+0xbc/0xec)
> [  303.335968] [<c073c99c>] (dump_stack) from [<c013dddc>]
> (__warn+0xe4/0x110)
> [  303.335984] [<c013dddc>] (__warn) from [<c013de38>]
> (warn_slowpath_null+0x30/0x38)
> [  303.335998] [<c013de38>] (warn_slowpath_null) from [<c01a74a0>]
> (__ipipe_ack_bad_irq+0x3c/0x48)
> [  303.336027] [<c01a74a0>] (__ipipe_ack_bad_irq) from [<c020ccdc>]
> (__ipipe_dispatch_irq+0x80/0x1e4)
> [  303.336048] [<c020ccdc>] (__ipipe_dispatch_irq) from [<c0790630>]
> (omap_gpio_irq_handler+0x15c/0x1d0)
> [  303.336066] [<c0790630>] (omap_gpio_irq_handler) from [<c01a3874>]
> (__handle_irq_event_percpu+0x68/0x2bc)
> [  303.336081] [<c01a3874>] (__handle_irq_event_percpu) from [<c01a3af4>]
> (handle_irq_event_percpu+0x2c/0x68)
> [  303.336095] [<c01a3af4>] (handle_irq_event_percpu) from [<c01a3b78>]
> (handle_irq_event+0x48/0x6c)
> [  303.336111] [<c01a3b78>] (handle_irq_event) from [<c01a8348>]
> (handle_level_irq+0xa8/0xfc)
> [  303.336127] [<c01a8348>] (handle_level_irq) from [<c01a2ea0>]
> (generic_handle_irq+0x28/0x38)
> [  303.336141] [<c01a2ea0>] (generic_handle_irq) from [<c01a3014>]
> (__handle_domain_irq+0x8c/0x10c)
> [  303.336164] [<c01a3014>] (__handle_domain_irq) from [<c0109c28>]
> (handle_IRQ+0x2c/0x30)
> [  303.336182] [<c0109c28>] (handle_IRQ) from [<c0117990>]
> (__ipipe_do_IRQ+0x38/0x40)
> [  303.336198] [<c0117990>] (__ipipe_do_IRQ) from [<c020c4b4>]
> (__ipipe_do_sync_stage+0x268/0x278)
> [  303.336214] [<c020c4b4>] (__ipipe_do_sync_stage) from [<c020c820>]
> (ipipe_unstall_root+0x50/0x5c)
> [  303.336244] [<c020c820>] (ipipe_unstall_root) from [<c0cbb4c8>]
> (default_idle_call+0x54/0x7c)
> [  303.336271] [<c0cbb4c8>] (default_idle_call) from [<c0187c4c>]
> (cpu_startup_entry+0xd0/0x144)
> [  303.336289] [<c0187c4c>] (cpu_startup_entry) from [<c0cb5c80>]
> (rest_init+0x80/0x98)
> [  303.336315] [<c0cb5c80>] (rest_init) from [<c1300d08>]
> (start_kernel+0x370/0x3d8)
> [  303.336327] ---[ end trace fd2436447809c122 ]---
>
> [  303.336343] irq 88, desc: dc1be400, depth: 0, count: 0, unhandled: 0
> [  303.336349] ->handle_irq():  c01a810c,
> [  303.336361] handle_edge_irq+0x0/0x194
> [  303.336367] ->irq_data.chip(): dc097b50,
> [  303.336376] 0xdc097b50
> [  303.336382] ->action(): da097380
> [  303.336389] ->action->handler(): c078dce4,
> [  303.336399] gpio_sysfs_irq+0x0/0x24
> [  303.336406]    IRQ_NOPROBE set
> [  303.336413] unexpected IRQ trap at vector 58
>
> [  306.761879] irq 88, desc: dc1be400, depth: 0, count: 1, unhandled: 0
> [  306.761893] ->handle_irq():  c01a810c,
> [  306.761928] handle_edge_irq+0x0/0x194
> [  306.761935] ->irq_data.chip(): dc097b50,
> [  306.761947] 0xdc097b50
> [  306.761954] ->action(): da097380
> [  306.761960] ->action->handler(): c078dce4,
> [  306.761976] gpio_sysfs_irq+0x0/0x24
> [  306.761985]    IRQ_NOPROBE set
> [  306.761995] unexpected IRQ trap at vector 58
>
> [  306.766311] irq 88, desc: dc1be400, depth: 0, count: 1, unhandled: 0
> [  306.766318] ->handle_irq():  c01a810c,
> [  306.766330] handle_edge_irq+0x0/0x194
> [  306.766336] ->irq_data.chip(): dc097b50,
> [  306.766344] 0xdc097b50
> [  306.766351] ->action(): da097380
> [  306.766357] ->action->handler(): c078dce4,
> [  306.766366] gpio_sysfs_irq+0x0/0x24
> [  306.766373]    IRQ_NOPROBE set
> [  306.766380] unexpected IRQ trap at vector 58
>
> [  306.892617] irq 88, desc: dc1be400, depth: 0, count: 2, unhandled: 0
> [  306.892634] ->handle_irq():  c01a810c,
> [  306.892666] handle_edge_irq+0x0/0x194
> [  306.892673] ->irq_data.chip(): dc097b50,
> [  306.892683] 0xdc097b50
> [  306.892690] ->action(): da097380
> [  306.892697] ->action->handler(): c078dce4,
> [  306.892712] gpio_sysfs_irq+0x0/0x24
> [  306.892723]    IRQ_NOPROBE set
> [  306.892732] unexpected IRQ trap at vector 58
>
> [  306.897047] irq 88, desc: dc1be400, depth: 0, count: 2, unhandled: 0
> [  306.897054] ->handle_irq():  c01a810c,
> [  306.897065] handle_edge_irq+0x0/0x194
> [  306.897071] ->irq_data.chip(): dc097b50,
> [  306.897079] 0xdc097b50
> [  306.897086] ->action(): da097380
> [  306.897092] ->action->handler(): c078dce4,
> [  306.897101] gpio_sysfs_irq+0x0/0x24
> [  306.897108]    IRQ_NOPROBE set
> [  306.897115] unexpected IRQ trap at vector 58
>
>
> Best regards,
> Branislav
>
>
>
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