Unable to handle kernel paging request at virtual address b497a000 Unable to handle kernel paging request at virtual address 003cd520 pgd = c0004000 [003cd520] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT ARM CPU: 0 PID: 63 Comm: irq/45-4a100000 Not tainted 4.14.71-rt44-eppfl1-g3b14af41729c #1 Hardware name: Generic AM33XX (Flattened Device Tree) task: de24e580 task.stack: de44a000 PC is at dma_cache_maint_page+0x58/0x128 LR is at __dma_page_dev_to_cpu+0x80/0x120 pc : [] lr : [] psr: 600f0113 sp : de44bd30 ip : de44bd68 fp : de44bd64 r10: 003cd520 r9 : 00000002 r8 : c0908300 r7 : de673240 r6 : 010c6e29 r5 : 000005fe r4 : 00000742 r3 : c09ba758 r2 : 01046e29 r1 : dfaf1000 r0 : 208dc520 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 10c5387d Table: 9d158019 DAC: 00000051 Process irq/45-4a100000 (pid: 63, stack limit = 0xde44a210) Stack: (0xde44bd30 to 0xde44c000) bd20: 00000000 c09ba758 de44bd54 000005fe bd40: 00000742 003cd520 de673240 00000002 00010000 c011524c de44bd94 de44bd68 bd60: c01146d0 c01143e4 c0118914 c0377568 c09c24c4 e00defc0 de3d59d0 de434f90 bd80: de673240 00000082 de44bda4 de44bd98 c011529c c011465c de44bddc de44bda8 bda0: c04afda0 c0115258 00000000 c05e43c0 00000000 de3d59d0 00010000 de3d59f0 bdc0: 00000082 e00defc0 de434f90 4a102fc0 de44be14 de44bde0 c04aff30 c04afd1c bde0: c016c614 e00de000 de1f6800 00000000 de3d59d0 00000040 de403638 00000040 be00: 00000040 00000000 de44be34 de44be18 c04b1030 c04afddc de403638 00000000 be20: 00000001 de403638 de44be5c de44be38 c04b2fa8 c04b1000 de403638 c097bd80 be40: c097bd80 00000001 c091cab8 00000040 de44becc de44be60 c05334f4 c04b2f08 be60: c0929900 ffffcc90 c09062c4 0000012c de44be70 de44be70 de44be78 de44be78 be80: de44be80 de44be80 00000000 00000001 00000008 c091cab8 00000003 c05e4140 bea0: 00000003 00000003 0000000c c098cd40 ffffe000 c091cab8 c097c1ec 00000000 bec0: de44bf14 de44bed0 c01324ec c0533320 de44bef4 de44bee0 c0132e50 00000060 bee0: c098cd4c 00208040 de44bf0c de436680 de1f6800 00000001 c0169c3c ffffe000 bf00: 00000001 de436758 de44bf24 de44bf18 c0132d04 c0132304 de44bf44 de44bf28 bf20: c0169c98 c0132ca4 de1f6800 de436680 ffffe000 c0169c3c de44bf74 de44bf48 bf40: c0169edc c0169c48 00000000 c0169ce8 de436740 de4366c0 ffffe000 de0efb94 bf60: de436680 c0169dac de44bfac de44bf78 c014a9fc c0169db8 00000000 00000000 bf80: de44bfac de4366c0 c014a8d0 00000000 00000000 00000000 00000000 00000000 bfa0: 00000000 de44bfb0 c0107dd0 c014a8dc 00000000 00000000 00000000 00000000 bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 [] (dma_cache_maint_page) from [] (__dma_page_dev_to_cpu+0x80/0x120) [] (__dma_page_dev_to_cpu) from [] (arm_dma_unmap_page+0x50/0x5c) [] (arm_dma_unmap_page) from [] (__cpdma_chan_free+0x90/0xc0) [] (__cpdma_chan_free) from [] (__cpdma_chan_process+0x160/0x16c) [] (__cpdma_chan_process) from [] (cpdma_chan_process+0x3c/0x58) [] (cpdma_chan_process) from [] (cpsw_rx_poll+0xac/0xc4) [] (cpsw_rx_poll) from [] (net_rx_action+0x1e0/0x484) [] (net_rx_action) from [] (do_current_softirqs+0x1f4/0x39c) [] (do_current_softirqs) from [] (__local_bh_enable+0x6c/0xa4) [] (__local_bh_enable) from [] (irq_forced_thread_fn+0x5c/0x60) [] (irq_forced_thread_fn) from [] (irq_thread+0x130/0x208) [] (irq_thread) from [] (kthread+0x12c/0x144) [] (kthread) from [] (ret_from_fork+0x14/0x24) Code: e5982000 e5931000 e0462002 e081a282 (e7912282) ---[ end trace 0000000000000002 ]--- genirq: exiting task "irq/45-4a100000" (63) is an active IRQ thread (irq 45) pgd = dd158000 [b497a000] *pgd=00000000 Internal error: Oops: 805 [#2] PREEMPT ARM CPU: 0 PID: 760 Comm: sport Tainted: G D 4.14.71-rt44-eppfl1-g3b14af41729c #1 Hardware name: Generic AM33XX (Flattened Device Tree) task: de70e580 task.stack: dd0e2000 PC is at __memzero+0x24/0x7c LR is at 0x0 pc : [] lr : [<00000000>] psr: 200f0113 sp : dd0e3b04 ip : 00000000 fp : dd0e3b6c r10: 00000001 r9 : 00000200 r8 : b497a000 r7 : 00000001 r6 : dfe92f40 r5 : 00000000 r4 : c0979798 r3 : 00000000 r2 : 00000000 r1 : 00000fc0 r0 : b497a000 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 10c5387d Table: 9d158019 DAC: 00000051 Process sport (pid: 760, stack limit = 0xdd0e2210) Stack: (0xdd0e3b04 to 0xdd0e4000) 3b00: c01e1aa4 ddc84abc c02057e8 de7508bc c077561c dd0e3b34 dfac08fc 3b20: 00000000 00000000 00000000 014080c2 00000001 c097a0ec 00000000 dd0e3bc8 3b40: dfe83480 c0905d54 00000000 00000001 00000000 de70e580 00000000 de4ccc00 3b60: dd0e3c2c dd0e3b70 c01e2190 c01e117c 00000000 dfe83500 dd0e3bc4 dfe83480 3b80: dd0e3bd8 00000000 c097cc8c c05e43c0 00000000 00000000 dd0e3bbc dd0e3ba8 3ba0: c05e43c0 c01e17b0 c0979798 00000000 dd0e3c24 dd0e3bc0 c01e17b0 014080c2 3bc0: 00000000 c0159110 c097a0ec 00000000 c097a0ec 00000000 00000001 00000000 3be0: c098e290 c01594a0 de70e580 c0923da8 600f0193 00000000 dd0e3c14 dd0e3c08 3c00: c0377550 dd158008 dd158008 de4ccc00 00000000 de70e580 00000005 de4ccc00 3c20: dd0e3c5c dd0e3c30 c0208254 c01e20d8 00000000 dd158008 de7246c0 00000014 3c40: 00000000 de70e580 00000005 de4ccc00 dd0e3cd4 dd0e3c60 c020af2c c0208230 3c60: ffffe000 de07bf00 dd0e3c84 dd0e3c78 de7246c0 00000014 014000c0 000003c7 3c80: 003c7000 dd158008 dd158008 00000000 00000000 00000000 00000000 00000000 3ca0: 00000000 00000000 dd0e3cd4 dd0e3df8 003c7b20 de7246c0 00000014 de70e580 3cc0: 00000005 de4ccc00 dd0e3d2c dd0e3cd8 c0113b30 c020ad1c dd0e3d04 00002000 3ce0: de07bf00 c016964c de07bf00 00000002 dd0e3d14 00000000 00000000 de4ccc4c 3d00: 00000000 00000005 003c7b20 00000005 dd0e3df8 c0908300 dd0e2000 003c7b20 3d20: dd0e3d4c dd0e3d30 c0113dbc c01139b8 00000005 003c7b20 c090aa9c dd0e3df8 3d40: dd0e3df4 dd0e3d50 c0101254 c0113d9c ffffffff c014c204 dd0e3d8c dd0e3d68 3d60: c014c204 c010f54c c0909f98 00000002 de254000 c014c2fc 00000000 00000002 3d80: dd0e3db4 c0152468 dd0e3dcc c01572f8 de70e5b0 c0923da8 81e0348a 00000003 3da0: 00000009 de70e934 dd0e3dec dd0e3db8 c01572f8 c0157138 dd0e3e50 c092b94c 3dc0: 00003430 00000000 de70e580 de70e580 c0923da8 c014c204 c0114430 a00f0013 3de0: ffffffff dd0e3e2c dd0e3e7c dd0e3df8 c010d3b8 c0101218 003c7b20 00000000 3e00: 0001e3d9 c09ba758 00000210 00000114 0009e3d9 003c7b20 c0908300 00000001 3e20: 003c7b20 dd0e3e7c dd0e3e80 dd0e3e48 c0114534 c0114430 a00f0013 ffffffff 3e40: 00000051 bf000000 dd0e3eac c09ba758 c05e0528 00000210 00000114 00000001 3e60: 003c7b20 c09c6718 dd0e2000 00000000 dd0e3ea4 dd0e3e80 c0114534 c01143e4 3e80: c0118904 c05e4140 de3e6c10 c0114588 de200a10 c0981520 dd0e3eb4 dd0e3ea8 3ea0: c01145d0 c011450c dd0e3f0c dd0e3eb8 c045a814 c0114594 dd0e3f1c dd0e3ec8 3ec0: c05e33d4 c017e9c4 0000c350 00000000 00000001 00000000 dd0e3f20 00000001 3ee0: de70e580 c05e447c 00000114 00000114 c09c60a8 00000000 c09c685c 00000000 3f00: dd0e3f34 dd0e3f10 c045ac9c c045a6a4 c022cadc c0321d24 c045ab4c 00000114 3f20: 0046b1e0 dd0e3f80 dd0e3f4c dd0e3f38 c022d3f8 c045ab58 de4fc400 00000114 3f40: dd0e3f7c dd0e3f50 c022d62c c022d3dc c024ba80 c024b018 de4fc400 de4fc401 3f60: 0046b1e0 00000114 c0107f08 dd0e2000 dd0e3fa4 dd0e3f80 c022d7d4 c022d56c 3f80: 00000000 00000000 00000114 0046b1e0 00000005 00000004 00000000 dd0e3fa8 3fa0: c0107ce0 c022d790 00000114 0046b1e0 00000005 0046b1e0 00000114 00000000 3fc0: 00000114 0046b1e0 00000005 00000004 00000000 00000000 0046507c 000575c0 3fe0: 00000000 beaa1b78 00000000 b6f186f0 800f0010 00000005 00000000 00000000 [] (__memzero) from [] (get_page_from_freelist+0x934/0x994) [] (get_page_from_freelist) from [] (__alloc_pages_nodemask+0xc4/0xd14) [] (__alloc_pages_nodemask) from [] (__pte_alloc+0x30/0x1bc) [] (__pte_alloc) from [] (handle_mm_fault+0x21c/0x91c) [] (handle_mm_fault) from [] (do_page_fault+0x184/0x32c) [] (do_page_fault) from [] (do_translation_fault+0x2c/0xc8) [] (do_translation_fault) from [] (do_DataAbort+0x48/0xc8) [] (do_DataAbort) from [] (__dabt_svc+0x58/0x80) Exception stack(0xdd0e3df8 to 0xdd0e3e40) 3de0: 003c7b20 00000000 3e00: 0001e3d9 c09ba758 00000210 00000114 0009e3d9 003c7b20 c0908300 00000001 3e20: 003c7b20 dd0e3e7c dd0e3e80 dd0e3e48 c0114534 c0114430 a00f0013 ffffffff [] (__dabt_svc) from [] (dma_cache_maint_page+0x58/0x128) [] (dma_cache_maint_page) from [] (__dma_page_cpu_to_dev+0x34/0x88) [] (__dma_page_cpu_to_dev) from [] (arm_dma_sync_single_for_device+0x48/0x54) [] (arm_dma_sync_single_for_device) from [] (start_dma_transfer+0x17c/0x32c) [] (start_dma_transfer) from [] (rdsp_write+0x150/0x16c) [] (rdsp_write) from [] (__vfs_write+0x28/0x48) [] (__vfs_write) from [] (vfs_write+0xcc/0x158) [] (vfs_write) from [] (SyS_write+0x50/0x88) [] (SyS_write) from [] (ret_fast_syscall+0x0/0x5c) Code: e52de004 e1a0c002 e1a0e002 e2511040 (a8a0500c) ---[ end trace 0000000000000003 ]---