Hello , i’m using an Arria 10 and i created a communication between the HPS and the FPGA,
but while mapping the addresses on linux Angustrom this error came :
[ 37.621008] Unable to handle kernel paging request at virtual0
[ 37.628202] pgd = c0004000
[ 37.630895] [2e799000] *pgd=00000000
[ 37.634468] Internal error: Oops: 5 [#1] SMP ARM
[ 37.639062] Modules linked in: altvipfb2_drv cfbfillrect cfbimgblt cfbcopyard
[ 37.647443] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 4.1.33-l1
[ 37.655580] Hardware name: Altera SOCFPGA Arria10
[ 37.660260] task: c0839de8 ti: c0834000 task.ti: c0834000
[ 37.665642] PC is at __queue_work+0x94/0x408
[ 37.669892] LR is at __queue_work+0x94/0x408
[ 37.674142] pc : [] lr : [] psr: 60080193
[ 37.674142] sp : c0835d88 ip : c0835d88 fp : c0835dc4
[ 37.685564] r10: 00000000 r9 : c0834000 r8 : c0836d10
[ 37.690763] r7 : ee0b3400 r6 : 00000002 r5 : 2e799000 r4 : ee218218
[ 37.697256] r3 : ee8a9920 r2 : 00000000 r1 : 00000006 r0 : ee822c00
[ 37.703753] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kel
[ 37.711112] Control: 10c5387d Table: 2e3b004a DAC: 00000015
[ 37.716829] Process swapper/0 (pid: 0, stack limit = 0xc0834218)
[ 37.722806] Stack: (0xc0835d88 to 0xc0836000)
[ 37.727143] 5d80: c0831c40 00000000 0000003c 00000001 ee828
[ 37.735282] 5da0: ee218228 00000100 c003c5e8 c089d57c ee218218 c08a6700 c0838
[ 37.743421] 5dc0: c003c60c c003c190 c0835e04 c0835dd8 c007b284 c003c5f4 ee828
[ 37.751560] 5de0: ee218228 00000001 00000002 c003c5e8 ee218218 c0835e20 c0838
[ 37.759698] 5e00: c007b76c c007b240 c0014640 c08a671c c0834000 c05af9c8 c083c
[ 37.767837] 5e20: c0835e20 c0835e20 00000000 c0836084 00000001 c0834000 00000
[ 37.775975] 5e40: c089d2ac 00000282 c0835ebc c0835e58 c002baec c007b5e4 00000
[ 37.784113] 5e60: c086f0e8 00200000 c0836100 ffff9984 0000000a ffffe000 c08a8
[ 37.792252] 5e80: c0836080 c0835e58 00000004 00000002 c006d264 c0831c40 00000
[ 37.800390] 5ea0: 00000001 ee820000 c05af9c8 ef7fcdc0 c0835ed4 c0835ec0 c0020
[ 37.808528] 5ec0: c0831c40 00000000 c0835efc c0835ed8 c0068fbc c002bfbc f0008
[ 37.816666] 5ee0: c0835f20 f0002100 c0836490 c05af9c8 c0835f1c c0835f00 c0008
[ 37.824805] 5f00: c00105dc 60080013 ffffffff c0835f54 c0835f74 c0835f20 c0018
[ 37.832943] 5f20: 00000000 00000000 000373f2 c0023100 c0834000 c08364dc c0830
[ 37.841081] 5f40: c0836490 c05af9c8 ef7fcdc0 c0835f74 c0835f78 c0835f68 c001c
[ 37.849220] 5f60: 60080013 ffffffff c0835f9c c0835f78 c005f390 c00105a0 c06a9
[ 37.857358] 5f80: c082f304 c0835f78 c05a9ef8 ffffffff c0835fac c0835fa0 c05a8
[ 37.865496] 5fa0: c0835ff4 c0835fb0 c07cbcc8 c05a55f4 ffffffff ffffffff c07c0
[ 37.873635] 5fc0: 00000000 c0812668 00000000 c089ffd4 c0836480 c0812664 c083a
[ 37.881773] 5fe0: 414fc091 00000000 00000000 c0835ff8 0000807c c07cb984 00000
[ 37.889925] [] (__queue_work) from [] (delayed_work_time)
[ 37.898243] [] (delayed_work_timer_fn) from [] (call_tim)
[ 37.906731] [] (call_timer_fn) from [] (run_timer_softir)
[ 37.914960] [] (run_timer_softirq) from [] (__do_softirq)
[ 37.923015] [] (__do_softirq) from [] (irq_exit+0x88/0xc)
[ 37.930208] [] (irq_exit) from [] (__handle_domain_irq+0)
[ 37.938006] [] (__handle_domain_irq) from [] (gic_handle)
[ 37.946319] [] (gic_handle_irq) from [] (__irq_svc+0x40/)
[ 37.953764] Exception stack(0xc0835f20 to 0xc0835f68)
[ 37.958793] 5f20: 00000000 00000000 000373f2 c0023100 c0834000 c08364dc c0830
[ 37.966931] 5f40: c0836490 c05af9c8 ef7fcdc0 c0835f74 c0835f78 c0835f68 c001c
[ 37.975067] 5f60: 60080013 ffffffff
[ 37.978545] [] (__irq_svc) from [] (arch_cpu_idle+0x48/0)
[ 37.985914] [] (arch_cpu_idle) from [] (cpu_startup_entr)
[ 37.994146] [] (cpu_startup_entry) from [] (rest_init+0x)
[ 38.001860] [] (rest_init) from [] (start_kernel+0x350/0)
[ 38.009310] Code: e59750c4 e0855003 e1a00004 ebffff5d (e5953000)
[ 38.015377] —[ end trace ff3eb5e3f75b6a91 ]—
[ 38.019973] Kernel panic - not syncing: Fatal exception in interrupt
[ 38.026298] CPU1: stopping
[ 38.029000] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D W 4.1.33-l1
[ 38.037137] Hardware name: Altera SOCFPGA Arria10
[ 38.041831] [] (unwind_backtrace) from [] (show_stack+0x)
[ 38.049544] [] (show_stack) from [] (dump_stack+0x8c/0xa)
[ 38.056736] [] (dump_stack) from [] (handle_IPI+0x294/0x)
[ 38.064099] [] (handle_IPI) from [] (gic_handle_irq+0x6c)
[ 38.071633] [] (gic_handle_irq) from [] (__irq_svc+0x40/)
[ 38.079078] Exception stack(0xee90ff60 to 0xee90ffa8)
[ 38.084108] ff60: 00000000 00000000 00027fe8 c0023100 ee90e000 c08364dc 10c00
[ 38.092246] ff80: c0836490 c05af9c8 00000000 ee90ffb4 ee90ffb8 ee90ffa8 c001c
[ 38.100382] ffa0: 60070013 ffffffff
[ 38.103858] [] (__irq_svc) from [] (arch_cpu_idle+0x48/0)
[ 38.111222] [] (arch_cpu_idle) from [] (cpu_startup_entr)
[ 38.119450] [] (cpu_startup_entry) from [] (secondary_st)
[ 38.128457] [] (secondary_start_kernel) from [<0000954c>] (0x954c)
[ 38.135473] —[ end Kernel panic - not syncing: Fatal exception in interrupt
anyone has an idea ?