on imx8qxpmek, kernel imx_5.4.70_2.3.0
i am occasionally getting
[ 2.377023] 000: irq 464: nobody cared (try booting with the "irqpoll" option)
[ 2.377032] 000: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.70-rt40+gb9144d02 #1
[ 2.377039] 000: Hardware name: Freescale i.MX8QXP MEK (DT)
[ 2.377043] 000: Call trace:
[ 2.377045] 000: dump_backtrace+0x0/0x140
[ 2.377057] 000: show_stack+0x14/0x20
[ 2.377062] 000: dump_stack+0xb0/0x10c
[ 2.377070] 000: __report_bad_irq+0x48/0xd8
[ 2.377077] 000: note_interrupt+0x2bc/0x374
[ 2.377081] 000: handle_irq_event_percpu+0xa4/0xb0
[ 2.377089] 000: handle_irq_event+0x74/0x118
464 (496) is VPU_INT_0 interrupt.
Could i safely ignore the info ?
sure, seems not creating any issue.
If it may be useful, did some further investigation:
the irq numbers are not significant (they are not matching RM values), so the "unhandled" is not related to VPU, but, required from
i2c-16 37230000.i2c cm4 LPI2C using irq 464
So, since LPI2C M4 is also visible from the application processor, and there is no fw loaded for M4, very likely, linux signals it as unhandled.
Try to burn again the sdcard in order to see if the problem go, otherwise if this not causing any other problem you can continue as it. i saw this issue before but with the burn out again the problem is solved.