it's been sent too soon , sorry. kernel version: 86_64 x86_64 GNU/Linux [root@localhost devmem2]# uname -a Linux localhost.localdomain 4.18.16 #4 SMP Thu Nov 21 17:10:34 IST 2019 x86_64 x86_64 x86_64 GNU/Linux [root@localhost devmem2]# Thank you for any ideas, Ran On Thu, Nov 21, 2019 at 6:02 PM Ranran <ranshalit@xxxxxxxxx> wrote: > > Hello, > > I use FPGA with PCIe, and we try to simulate interrupt. > uio_generic_pci is the kernel pci driver. > > On receiving interrupt there is a crash: > > I get the following exception: > What do you want to do today ? [ 384.696015] irq 23: nobody cared > (try booting with the "irqpoll" option) > [ 384.703048] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G OE > 4.18.16 #3 > [ 384.710799] Hardware name: /conga-MA5, BIOS MA50R000 10/30/2019 > [ 384.717083] Call Trace: > [ 384.719643] <IRQ> > [ 384.721761] dump_stack+0x5c/0x80 > [ 384.725224] __report_bad_irq+0x35/0xaf > [ 384.729234] note_interrupt.cold.9+0xa/0x63 > [ 384.733612] handle_irq_event_percpu+0x68/0x70 > [ 384.738239] handle_irq_event+0x37/0x57 > [ 384.742262] handle_fasteoi_irq+0x97/0x150 > [ 384.746560] handle_irq+0x1a/0x30 > [ 384.750021] do_IRQ+0x44/0xd0 > [ 384.753132] common_interrupt+0xf/0xf > [ 384.756979] </IRQ> > [ 384.759181] RIP: 0010:cpuidle_enter_state+0x7d/0x220 > [ 384.764368] Code: e8 d8 19 45 00 41 89 c4 e8 30 50 b1 ff 65 8b 3d > 99 db 85 7e e8 a4 4e b1 ff 31 ff 48 89 c3 e8 4a 61 b1 ff fb 66 0f 1f > 44 00 00 <48> b8 ff ff ff ff f3 01 00 00 4c 29 eb ba ff ff ff 7f 48 89 > d9 48 > [ 384.784119] RSP: 0018:ffffb068c06afea8 EFLAGS: 00000286 ORIG_RAX: > ffffffffffffffda > [ 384.792032] RAX: ffff96977fca14c0 RBX: 0000005991ab33dd RCX: 000000000000001f > [ 384.799495] RDX: 0000005991ab33dd RSI: 0000000000000000 RDI: 0000000000000000 > [ 384.806955] RBP: ffff96977fcab300 R08: 000000977b372895 R09: 0000000000000006 > [ 384.814446] R10: 00000000ffffffff R11: ffff96977fca05a8 R12: 0000000000000001 > [ 384.821900] R13: 0000005991ab220e R14: 0000000000000001 R15: 0000000000000000 > [ 384.829346] ? cpuidle_enter_state+0x76/0x220 > [ 384.833886] do_idle+0x221/0x260 > [ 384.837258] cpu_startup_entry+0x6a/0x70 > [ 384.841366] start_secondary+0x1a4/0x1f0 > [ 384.845465] secondary_startup_64+0xb7/0xc0 > [ 384.849849] handlers: > [ 384.852233] [<000000007a5bed83>] uio_interrupt > [ 384.856892] Disabling IRQ #23 > > kernel version:
