root@am335x-evm:/# [43946.836954] Unable to handle kernel paging request at virtual address f08f4314 [43946.844989] pgd = ed3c4000 [43946.849386] [f08f4314] *pgd=ae831811, *pte=00000000, *ppte=00000000 [43946.856066] Internal error: Oops: 7 [#1] PREEMPT ARM [43946.856071] Modules linked in: musb_dsps musb_hdrc udc_core phy_am335x usbcore phy_generic usb_common phy_am335x_control c_can_platform c_can can_dev musb_am335x omap_crypto [43946.856109] CPU: 0 PID: 12860 Comm: sh Not tainted 4.14.79-rt47-g28d73230da #35 [43946.856112] Hardware name: Generic AM33XX (Flattened Device Tree) [43946.856116] task: ed0f4700 task.stack: eee70000 [43946.856141] PC is at page_address+0xc/0xf4 [43946.856148] LR is at kunmap_high+0x28/0xa4 [43946.856151] pc : [] lr : [] psr: 600a0113 [43946.856154] sp : eee71d20 ip : eee71d48 fp : eee71d44 [43946.856158] r10: eee8e44c r9 : eee8e400 r8 : c0116104 [43946.856161] r7 : ed655420 r6 : efe1f30c r5 : f08f4314 r4 : c0a1c2b8 [43946.856165] r3 : c0a1c2c0 r2 : ed0f4700 r1 : 00000000 r0 : f08f4314 [43946.856171] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [43946.856175] Control: 10c5387d Table: ad3c4019 DAC: 00000051 [43946.856179] Process sh (pid: 12860, stack limit = 0xeee70208) [43946.856183] Stack: (0xeee71d20 to 0xeee72000) [43946.856193] 1d20: c0a1c2b8 f08f4314 efe1f30c ed655420 c0116104 eee8e400 eee71d64 eee71d48 [43946.856202] 1d40: c01e9b90 c01e9a80 bfedb000 bfe20000 efe1f30c ed655420 eee71d84 eee71d68 [43946.856210] 1d60: c0115b50 c01e9b74 bfedb000 bfe20000 efe1f30c ed655420 eee71d9c eee71d88 [43946.856218] 1d80: c0116144 c0115a38 efe201f4 eee71e40 eee71dec eee71da0 c01ea52c c0116110 [43946.856226] 1da0: eee71dbc eee71db0 c067312c c0148e94 eee71de4 eee71dc0 ffefe000 eee70000 [43946.856234] 1dc0: eee71dec eee71e40 ed655420 00000040 00000055 ffffe000 ed655420 eee8e44c [43946.856242] 1de0: eee71e24 eee71df0 c01ed244 c01ea4b0 eee71e24 eee71e00 ffffe000 00000002 [43946.856250] 1e00: eee71e24 b2dd53cf ed655420 00000040 00000055 ffffe000 eee71ea4 eee71e28 [43946.856258] 1e20: c01ee76c c01ed1ac 00000000 00045490 eee71e5c eee71e40 c015e3c0 c016ee54 [43946.856266] 1e40: ed655420 00000055 014200ca 000000cd 000ed000 ed3c4000 ed3c4000 b2dd53cf [43946.856274] 1e60: 00000000 00000000 efe201f4 ffefe3b4 eee8e438 00000000 eee71ea4 eee71fb0 [43946.856283] 1e80: ed0f4700 eee8e400 0000081f 000ed75c ed655420 eee8e44c eee71efc eee71ea8 [43946.856291] 1ea0: c0111294 c01ee060 ed0f4700 c0a058e4 ed0f4730 eeaa9530 eee71efc 00000000 [43946.856299] 1ec0: 00000000 00000800 00000008 00000055 c01518f4 c0a0a24c 0000081f c0111158 [43946.856307] 1ee0: 000ed75c eee71fb0 000c74d0 000f408c eee71fac eee71f00 c0101310 c0111164 [43946.856315] 1f00: eeaa9500 c0a12a50 eee71f3c eee71f18 c014be90 c014b474 400a0013 00000004 [43946.856323] 1f20: c01414d0 00000000 00000000 00000000 eee71f8c eee71f40 c01265cc c01413cc [43946.856331] 1f40: 00000000 00000000 ffffffff beb26720 00000051 beb266a0 00000051 beb26720 [43946.856339] 1f60: 00000008 b6f393b8 00000000 b6f39810 00000078 c0107ae4 eee70000 00000078 [43946.856347] 1f80: eee71fa4 eee71f90 c0126908 00051d60 600a0010 ffffffff 10c5387d 10c53c7d [43946.856355] 1fa0: 00000000 eee71fb0 c010c5c0 c01012d8 00000002 beb26720 00000000 00000000 [43946.856363] 1fc0: 0000323d 000ed704 000f2d3c 00000000 00000000 000c74d0 000f408c 000f5af0 [43946.856371] 1fe0: 00000000 beb26690 00051d4c 00051d60 600a0010 ffffffff 00000000 00000000 [43946.856372] Backtrace: [43946.856386] [] (page_address) from [] (kunmap_high+0x28/0xa4) [43946.856396] r9:eee8e400 r8:c0116104 r7:ed655420 r6:efe1f30c r5:f08f4314 r4:c0a1c2b8 [43946.856407] [] (kunmap_high) from [] (__kunmap_atomic+0x124/0x128) [43946.856413] r7:ed655420 r6:efe1f30c r5:bfe20000 r4:bfedb000 [43946.856424] [] (__kunmap_atomic) from [] (v6_copy_user_highpage_nonaliasing+0x40/0x44) [43946.856430] r7:ed655420 r6:efe1f30c r5:bfe20000 r4:bfedb000 [43946.856439] [] (v6_copy_user_highpage_nonaliasing) from [] (wp_page_copy+0x88/0x594) [43946.856443] r5:eee71e40 r4:efe201f4 [43946.856453] [] (wp_page_copy) from [] (do_wp_page+0xa4/0x524) [43946.856461] r10:eee8e44c r9:ed655420 r8:ffffe000 r7:00000055 r6:00000040 r5:ed655420 [43946.856463] r4:eee71e40 [43946.856472] [] (do_wp_page) from [] (handle_mm_fault+0x718/0xbbc) [43946.856478] r8:ffffe000 r7:00000055 r6:00000040 r5:ed655420 r4:b2dd53cf [43946.856494] [] (handle_mm_fault) from [] (do_page_fault+0x13c/0x388) [43946.856502] r10:eee8e44c r9:ed655420 r8:000ed75c r7:0000081f r6:eee8e400 r5:ed0f4700 [43946.856505] r4:eee71fb0 [43946.856514] [] (do_page_fault) from [] (do_DataAbort+0x44/0xc4) [43946.856522] r10:000f408c r9:000c74d0 r8:eee71fb0 r7:000ed75c r6:c0111158 r5:0000081f [43946.856524] r4:c0a0a24c [43946.856532] [] (do_DataAbort) from [] (__dabt_usr+0x40/0x60) [43946.856535] Exception stack(0xeee71fb0 to 0xeee71ff8) [43946.856540] 1fa0: 00000002 beb26720 00000000 00000000 [43946.856548] 1fc0: 0000323d 000ed704 000f2d3c 00000000 00000000 000c74d0 000f408c 000f5af0 [43946.856555] 1fe0: 00000000 beb26690 00051d4c 00051d60 600a0010 ffffffff [43946.856561] r8:10c53c7d r7:10c5387d r6:ffffffff r5:600a0010 r4:00051d60 [43946.856570] Code: e89da800 e1a0c00d e92ddbf0 e24cb004 (e5903000) [43947.345982] ---[ end trace 0000000000000002 ]--- [43947.351072] Internal error: Oops - undefined instruction: 0 [#2] PREEMPT ARM [43947.351077] Modules linked in: musb_dsps musb_hdrc udc_core phy_am335x usbcore phy_generic usb_common phy_am335x_control c_can_platform c_can can_dev musb_am335x omap_crypto [43947.351111] CPU: 0 PID: 12860 Comm: sh Tainted: G D 4.14.79-rt47-g28d73230da #35 [43947.351114] Hardware name: Generic AM33XX (Flattened Device Tree) [43947.351119] task: ed0f4700 task.stack: eee70000 [43947.351143] PC is at rt_spin_lock_slowlock_locked+0x210/0x25c [43947.351149] LR is at 0xed0f4701 [43947.351152] pc : [] lr : [] psr: 600a0193 [43947.351155] sp : eee71930 ip : c0a1c2c0 fp : eee71954 [43947.351158] r10: eee71ad0 r9 : c087bbc0 r8 : eee71958 [43947.351162] r7 : ffffe000 r6 : ed0f4700 r5 : a00a0113 r4 : c0a1c2b8 [43947.351165] r3 : ed0f4700 r2 : 00000000 r1 : ed0f4700 r0 : 00000000 [43947.351170] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none [43947.351174] Control: 10c5387d Table: ad3c4019 DAC: 00000051 [43947.351178] Process sh (pid: 12860, stack limit = 0xeee70208) [43947.351182] Stack: (0xeee71930 to 0xeee72000) [43947.351190] 1920: ffffe000 a00a0113 00080000 ef6f9000 [43947.351198] 1940: ffffe000 c087bbc0 eee7199c eee71958 c0671304 c0671058 eee71958 c0a3e5f7 [43947.351206] 1960: eee70000 eee71964 eee7198c eee71978 00000000 c066f014 c065a701 00000001 [43947.351214] 1980: 00000000 00000000 eee70000 c0a1c2b8 eee719b4 eee719a0 c0672fb0 c06712b4 [43947.351222] 19a0: eff7c518 0000004f eee719cc eee719b8 c01e9c94 c0672f4c eff7c518 0000004f [43947.351230] 19c0: eee719f4 eee719d0 c011596c c01e9c84 00010000 ffffffff 00010000 00000000 [43947.351238] 19e0: 00000000 c087bbc0 eee71a7c eee719f8 c01ec1ac c0115904 c087bbc0 ffe00000 [43947.351246] 1a00: 000dcfff ed3c4000 eee71a6c 000dd000 01000200 00000000 eee8e400 ed3c4004 [43947.351254] 1a20: efe1f6d8 eee8e438 00000000 c0a6b1a0 c0a08300 ed655ae0 000dd000 00010000 [43947.351262] 1a40: 00000000 00000000 00000000 00000000 c0a1bc84 ed655ae0 ffffffff eee71ad0 [43947.351270] 1a60: 00000000 00000000 eee8e44c ed0f4700 eee71a9c eee71a80 c01ec70c c01ec028 [43947.351277] 1a80: 00000000 00000524 00000000 ed655ae0 eee71acc eee71aa0 c01ec9b0 c01ec6c8 [43947.351285] 1aa0: 00000000 eee71ab0 c01eacc4 ed655ae0 eee8e400 00000000 00000524 00000000 [43947.351293] 1ac0: eee71b34 eee71ad0 c01f2de8 c01ec960 eee8e400 00000001 00000000 00000000 [43947.351301] 1ae0: ffffffff eee71b44 eee71b24 00000000 00000400 ed71b000 eee71b1c eee71b08 [43947.351309] 1b00: ffffe000 ed364a44 eef6c500 eee8e400 00000000 ffffe000 00000524 eee8e400 [43947.351317] 1b20: 00000000 ffffe000 eee71b4c eee71b38 c01248e0 c01f2d3c ed0f4700 eee8e400 [43947.351324] 1b40: eee71b6c eee71b50 c01296cc c01248ac eee71b6c eee71b60 c01272bc eee70000 [43947.351332] 1b60: eee71bac eee71b70 c010b8cc c01293e0 eee70208 0000000b c0111100 600a0113 [43947.351341] 1b80: c081bebc f08f4314 eee71cd0 00000007 eee8e400 f08f4314 eee70000 eee8e44c [43947.351349] 1ba0: eee71bc4 eee71bb0 c01116b8 c010b67c eee71cd0 00000007 eee71c1c eee71bc8 [43947.351357] 1bc0: c01114e0 c0111658 2b30ef80 000027f8 c0a0a680 00000003 ffffffff c0a19800 [43947.351365] 1be0: eee71c1c eee71bf0 c018a7e8 c0189ae4 00000000 c0a0a1cc 00000007 c0111158 [43947.351373] 1c00: f08f4314 eee71cd0 eee70000 eee8e44c eee71ccc eee71c20 c0101310 c0111164 [43947.351381] 1c20: ffffe000 c0a1bbd4 00000000 c0a1bbd4 eee71c4c eee71c40 00000000 c0a1bbd4 [43947.351389] 1c40: eee71cd4 eee71c50 c01c59c4 c0148e94 00000000 0000004f eee71c74 c0a3e5f7 [43947.351397] 1c60: c067312c c0148e94 eee71c8c eee71c78 c01e9cdc c06730dc eff7f068 00000001 [43947.351405] 1c80: 00000000 00000000 ffffe000 ef6d08e0 00000001 014200ca 00000000 00000000 [43947.351413] 1ca0: 00000081 c0a3e188 eee71d3c c01e9a80 600a0113 ffffffff eee71d04 c0116104 [43947.351421] 1cc0: eee71d44 eee71cd0 c010c178 c01012d8 f08f4314 00000000 ed0f4700 c0a1c2c0 [43947.351429] 1ce0: c0a1c2b8 f08f4314 efe1f30c ed655420 c0116104 eee8e400 eee8e44c eee71d44 [43947.351437] 1d00: eee71d48 eee71d20 c01e9b90 c01e9a80 600a0113 ffffffff 00000051 bf000000 [43947.351445] 1d20: c0a1c2b8 f08f4314 efe1f30c ed655420 c0116104 eee8e400 eee71d64 eee71d48 [43947.351453] 1d40: c01e9b90 c01e9a80 bfedb000 bfe20000 efe1f30c ed655420 eee71d84 eee71d68 [43947.351462] 1d60: c0115b50 c01e9b74 bfedb000 bfe20000 efe1f30c ed655420 eee71d9c eee71d88 [43947.351470] 1d80: c0116144 c0115a38 efe201f4 eee71e40 eee71dec eee71da0 c01ea52c c0116110 [43947.351478] 1da0: eee71dbc eee71db0 c067312c c0148e94 eee71de4 eee71dc0 ffefe000 eee70000 [43947.351486] 1dc0: eee71dec eee71e40 ed655420 00000040 00000055 ffffe000 ed655420 eee8e44c [43947.351494] 1de0: eee71e24 eee71df0 c01ed244 c01ea4b0 eee71e24 eee71e00 ffffe000 00000002 [43947.351502] 1e00: eee71e24 b2dd53cf ed655420 00000040 00000055 ffffe000 eee71ea4 eee71e28 [43947.351510] 1e20: c01ee76c c01ed1ac 00000000 00045490 eee71e5c eee71e40 c015e3c0 c016ee54 [43947.351518] 1e40: ed655420 00000055 014200ca 000000cd 000ed000 ed3c4000 ed3c4000 b2dd53cf [43947.351526] 1e60: 00000000 00000000 efe201f4 ffefe3b4 eee8e438 00000000 eee71ea4 eee71fb0 [43947.351534] 1e80: ed0f4700 eee8e400 0000081f 000ed75c ed655420 eee8e44c eee71efc eee71ea8 [43947.351542] 1ea0: c0111294 c01ee060 ed0f4700 c0a058e4 ed0f4730 eeaa9530 eee71efc 00000000 [43947.351550] 1ec0: 00000000 00000800 00000008 00000055 c01518f4 c0a0a24c 0000081f c0111158 [43947.351558] 1ee0: 000ed75c eee71fb0 000c74d0 000f408c eee71fac eee71f00 c0101310 c0111164 [43947.351567] 1f00: eeaa9500 c0a12a50 eee71f3c eee71f18 c014be90 c014b474 400a0013 00000004 [43947.351574] 1f20: c01414d0 00000000 00000000 00000000 eee71f8c eee71f40 c01265cc c01413cc [43947.351582] 1f40: 00000000 00000000 ffffffff beb26720 00000051 beb266a0 00000051 beb26720 [43947.351590] 1f60: 00000008 b6f393b8 00000000 b6f39810 00000078 c0107ae4 eee70000 00000078 [43947.351598] 1f80: eee71fa4 eee71f90 c0126908 00051d60 600a0010 ffffffff 10c5387d 10c53c7d [43947.351606] 1fa0: 00000000 eee71fb0 c010c5c0 c01012d8 00000002 beb26720 00000000 00000000 [43947.351614] 1fc0: 0000323d 000ed704 000f2d3c 00000000 00000000 000c74d0 000f408c 000f5af0 [43947.351622] 1fe0: 00000000 beb26690 00051d4c 00051d60 600a0010 ffffffff 00000000 00000000 [43947.351623] Backtrace: [43947.351640] [] (rt_spin_lock_slowlock_locked) from [] (rt_spin_lock_slowlock+0x5c/0xa8) [43947.351650] r9:c087bbc0 r8:ffffe000 r7:ef6f9000 r6:00080000 r5:a00a0113 r4:ffffe000 [43947.351659] [] (rt_spin_lock_slowlock) from [] (rt_spin_lock+0x70/0x74) [43947.351663] r5:c0a1c2b8 r4:eee70000 [43947.351680] [] (rt_spin_lock) from [] (kmap_high_get+0x1c/0x70) [43947.351683] r5:0000004f r4:eff7c518 [43947.351694] [] (kmap_high_get) from [] (kmap_atomic+0x74/0x134) [43947.351698] r5:0000004f r4:eff7c518 [43947.351707] [] (kmap_atomic) from [] (unmap_page_range+0x190/0x6a0) [43947.351714] r9:c087bbc0 r8:00000000 r7:00000000 r6:00010000 r5:ffffffff r4:00010000 [43947.351723] [] (unmap_page_range) from [] (unmap_single_vma+0x50/0x58) [43947.351731] r10:ed0f4700 r9:eee8e44c r8:00000000 r7:00000000 r6:eee71ad0 r5:ffffffff [43947.351733] r4:ed655ae0 [43947.351742] [] (unmap_single_vma) from [] (unmap_vmas+0x5c/0x70) [43947.351744] r4:ed655ae0 [43947.351754] [] (unmap_vmas) from [] (exit_mmap+0xb8/0x1b8) [43947.351761] r8:00000000 r7:00000524 r6:00000000 r5:eee8e400 r4:ed655ae0 [43947.351772] [] (exit_mmap) from [] (mmput+0x40/0xd4) [43947.351777] r6:ffffe000 r5:00000000 r4:eee8e400 [43947.351788] [] (mmput) from [] (do_exit+0x2f8/0xa68) [43947.351792] r5:eee8e400 r4:ed0f4700 [43947.351809] [] (do_exit) from [] (die+0x25c/0x2a0) [43947.351812] r7:eee70000 [43947.351828] [] (die) from [] (__do_kernel_fault.part.0+0x6c/0x7c) [43947.351835] r10:eee8e44c r9:eee70000 r8:f08f4314 r7:eee8e400 r6:00000007 r5:eee71cd0 [43947.351838] r4:f08f4314 [43947.351846] [] (__do_kernel_fault.part.0) from [] (do_bad_area+0x0/0x8c) [43947.351850] r7:00000007 r4:eee71cd0 [43947.351857] [] (do_page_fault) from [] (do_DataAbort+0x44/0xc4) [43947.351865] r10:eee8e44c r9:eee70000 r8:eee71cd0 r7:f08f4314 r6:c0111158 r5:00000007 [43947.351868] r4:c0a0a1cc [43947.351874] [] (do_DataAbort) from [] (__dabt_svc+0x58/0x80) [43947.351878] Exception stack(0xeee71cd0 to 0xeee71d18) [43947.351883] 1cc0: f08f4314 00000000 ed0f4700 c0a1c2c0 [43947.351891] 1ce0: c0a1c2b8 f08f4314 efe1f30c ed655420 c0116104 eee8e400 eee8e44c eee71d44 [43947.351898] 1d00: eee71d48 eee71d20 c01e9b90 c01e9a80 600a0113 ffffffff [43947.351905] r8:c0116104 r7:eee71d04 r6:ffffffff r5:600a0113 r4:c01e9a80 [43947.351913] [] (page_address) from [] (kunmap_high+0x28/0xa4) [43947.351921] r9:eee8e400 r8:c0116104 r7:ed655420 r6:efe1f30c r5:f08f4314 r4:c0a1c2b8 [43947.351928] [] (kunmap_high) from [] (__kunmap_atomic+0x124/0x128) [43947.351934] r7:ed655420 r6:efe1f30c r5:bfe20000 r4:bfedb000 [43947.351943] [] (__kunmap_atomic) from [] (v6_copy_user_highpage_nonaliasing+0x40/0x44) [43947.351948] r7:ed655420 r6:efe1f30c r5:bfe20000 r4:bfedb000 [43947.351956] [] (v6_copy_user_highpage_nonaliasing) from [] (wp_page_copy+0x88/0x594) [43947.351960] r5:eee71e40 r4:efe201f4 [43947.351969] [] (wp_page_copy) from [] (do_wp_page+0xa4/0x524) [43947.351977] r10:eee8e44c r9:ed655420 r8:ffffe000 r7:00000055 r6:00000040 r5:ed655420 [43947.351979] r4:eee71e40 [43947.351988] [] (do_wp_page) from [] (handle_mm_fault+0x718/0xbbc) [43947.351994] r8:ffffe000 r7:00000055 r6:00000040 r5:ed655420 r4:b2dd53cf [43947.352004] [] (handle_mm_fault) from [] (do_page_fault+0x13c/0x388) [43947.352011] r10:eee8e44c r9:ed655420 r8:000ed75c r7:0000081f r6:eee8e400 r5:ed0f4700 [43947.352014] r4:eee71fb0 [43947.352021] [] (do_page_fault) from [] (do_DataAbort+0x44/0xc4) [43947.352029] r10:000f408c r9:000c74d0 r8:eee71fb0 r7:000ed75c r6:c0111158 r5:0000081f [43947.352032] r4:c0a0a24c [43947.352038] [] (do_DataAbort) from [] (__dabt_usr+0x40/0x60) [43947.352041] Exception stack(0xeee71fb0 to 0xeee71ff8) [43947.352046] 1fa0: 00000002 beb26720 00000000 00000000 [43947.352054] 1fc0: 0000323d 000ed704 000f2d3c 00000000 00000000 000c74d0 000f408c 000f5af0 [43947.352061] 1fe0: 00000000 beb26690 00051d4c 00051d60 600a0010 ffffffff [43947.352067] r8:10c53c7d r7:10c5387d r6:ffffffff r5:600a0010 r4:00051d60 [43947.352076] Code: 1a00000e e5983000 e1580003 089dabf0 (e7f001f2) [43948.357766] ---[ end trace 0000000000000003 ]--- [43948.357770] Fixing recursive fault but reboot is needed! [44112.190665] systemd[1]: systemd-journald.service: State 'stop-sigabrt' timed out. Terminating.