** Description changed: [Impact] - Running LTP rwtest casues system crash on ARM64 with 4k pages in THP code. + Running LTP rwtest casues system crash on ARM64 with 4k pages in THP code. Ubuntu Artful Aardvark (development branch) XXX ttyAMA1 XXX login: [412822.864619] Unable to handle kernel paging request at virtual address ffffb119c0000fc0 [412822.871676] swapper pgtable: 4k pages, 48-bit VAs, pgd = ffff14a623699000 [412822.878551] [ffffb119c0000fc0] *pgd=00000017ffff7003, *pud=00000017ffff6003, *pmd=0000000000000000 [412822.887571] Internal error: Oops: 96000006 [#1] SMP [412822.892499] Modules linked in: binfmt_misc nls_iso8859_1 shpchp tpm_crb ipmi_ssif cppc_cpufreq ipmi_devintf ipmi_msghandler hdma i2c_qup hdma_mgmt ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage at803x aes_ce_blk aes_ce_cipher crc32_ce crct10dif_ce ghash_ce mlx5_core sha2_ce sha1_ce mlxfw devlink ptp pps_core ahci_platform libahci_platform libahci qcom_emac sdhci_acpi sdhci xhci_plat_hcd aes_neon_bs aes_neon_blk crypto_simd cryptd [412822.949443] CPU: 3 PID: 19639 Comm: doio Not tainted 4.13.0-12-generic #13-Ubuntu [412822.956993] Hardware name: XXX [412822.970882] task: ffffb1314c43ad00 task.stack: ffffb1314c610000 [412822.976877] PC is at check_pte+0x20/0x148 [412822.980953] LR is at page_vma_mapped_walk+0x244/0x4c0 [412822.986073] pc : [<ffff14a6222d8070>] lr : [<ffff14a6222d83dc>] pstate: 00400145 [412822.993538] sp : ffffb1314c613770 - [412822.996923] x29: ffffb1314c613770 x28: ffffb1314c613be0 - [412823.002305] x27: 0000ffffaf7f8000 x26: 0008000000000080 - [412823.007687] x25: 00000000000001f8 x24: 0400000000000001 - [412823.013069] x23: ffff14a622e8f000 x22: ffffb12c9afc8400 - [412823.018451] x21: ffff7ec4bedfe080 x20: 0400000000000001 - [412823.023833] x19: ffffb1314c613850 x18: 0000000000000001 - [412823.029215] x17: 0000000000000001 x16: 0000000000000000 - [412823.034597] x15: 0000000000000000 x14: ffffb12579b91fd0 - [412823.039979] x13: 0000000000000040 x12: ffffffffffffff83 - [412823.045360] x11: 0000000000000000 x10: ffffb131bffddd00 - [412823.050742] x9 : 0000000000000006 x8 : 0000000000000001 - [412823.056124] x7 : ffff14a623051811 x6 : 0000008000080000 - [412823.061506] x5 : 01ffff000000107d x4 : ffff14a6222d96e0 - [412823.066888] x3 : 0000000000000001 x2 : 0000000000000001 - [412823.072270] x1 : ffffb119c0000fc0 x0 : 0000000000000001 + [412822.996923] x29: ffffb1314c613770 x28: ffffb1314c613be0 + [412823.002305] x27: 0000ffffaf7f8000 x26: 0008000000000080 + [412823.007687] x25: 00000000000001f8 x24: 0400000000000001 + [412823.013069] x23: ffff14a622e8f000 x22: ffffb12c9afc8400 + [412823.018451] x21: ffff7ec4bedfe080 x20: 0400000000000001 + [412823.023833] x19: ffffb1314c613850 x18: 0000000000000001 + [412823.029215] x17: 0000000000000001 x16: 0000000000000000 + [412823.034597] x15: 0000000000000000 x14: ffffb12579b91fd0 + [412823.039979] x13: 0000000000000040 x12: ffffffffffffff83 + [412823.045360] x11: 0000000000000000 x10: ffffb131bffddd00 + [412823.050742] x9 : 0000000000000006 x8 : 0000000000000001 + [412823.056124] x7 : ffff14a623051811 x6 : 0000008000080000 + [412823.061506] x5 : 01ffff000000107d x4 : ffff14a6222d96e0 + [412823.066888] x3 : 0000000000000001 x2 : 0000000000000001 + [412823.072270] x1 : ffffb119c0000fc0 x0 : 0000000000000001 [412823.077652] Process doio (pid: 19639, stack limit = 0xffffb1314c610000) [412823.084336] Stack: (0xffffb1314c613770 to 0xffffb1314c614000) [412823.090152] 3760: ffffb1314c613790 ffff14a6222d83dc [412823.098052] 3780: ffffb1314c613850 ffffb12500000000 ffffb1314c6137e0 ffff14a6222d97a0 [412823.105951] 37a0: ffffb13144152af0 ffffb1314c61393c 0000ffffaf7f9000 0040000000000001 [412823.113850] 37c0: 0040000000000041 ffffb1314c61393c 0000000000000000 0000000001011200 [412823.121750] 37e0: ffffb1314c613890 ffff14a6222d9a40 0000ffffaf7f8000 ffff7ec4bedfe080 [412823.129649] 3800: ffffb1314c613940 00000000000009a1 00000000000009a1 ffffb12579cd3d70 [412823.137548] 3820: 0000000000000000 ffffb13144152af0 ffffb12579cd3d98 ffffb1314c613be0 [412823.145447] 3840: ffffb1306b144bb8 0000ffffaf7f9000 ffff7ec4bedfe080 ffffb13144152af0 [412823.153347] 3860: 0000ffffaf7f8000 ffffb130ff713bd8 ffffb119c0000fc0 ffff7ec4b6a854b0 [412823.161246] 3880: 0000000000000001 0000000000040d00 ffffb1314c6138f0 ffff14a6222dbb0c [412823.169145] 38a0: ffff7ec4bedfe080 ffffb1314c613940 0000000000000001 ffffb1314c613be0 [412823.177045] 38c0: ffffb1257880ebc8 0000000000000000 ffffb12579cd3d70 0000000000000002 [412823.184944] 38e0: ffff14a623428000 ffff14a62240ebd0 ffffb1314c613910 ffff14a6222dbda4 [412823.192843] 3900: ffff14a623428000 ffff7ec4bedfe080 ffffb1314c613970 ffff14a62229a210 [412823.200743] 3920: ffff7ec4bedfe080 ffffb12579cd3bf8 ffff7ec4a803a280 000000012240e7e8 [412823.208642] 3940: ffffb1314c61393c ffff14a6222d96e0 0000000000000000 0000000000000000 [412823.216541] 3960: ffff14a6222d9340 0000000000040d00 ffffb1314c6139b0 ffff14a6223ed224 [412823.224441] 3980: ffffb1314c613be0 ffff7ec4bedfe080 0000000000000c35 ffffb1314c613be0 [412823.232340] 39a0: ffffb1257880ebc8 00000001000009c0 ffffb1314c6139d0 ffff14a6223ed3e4 [412823.240239] 39c0: ffffb1257880ebc8 00000000000009a2 ffffb1314c613a10 ffff14a6223ed530 [412823.248138] 39e0: ffff7ec4bedfe080 ffffb1314c613ac0 7fffffffffffffeb ffffb1314c613af8 [412823.256038] 3a00: 0000000000000c34 ffff14a6222f5858 ffffb1314c613b00 ffff14a6223f2f60 [412823.263937] 3a20: 0000000004000000 ffffb12579cd3bf8 ffffb1314c613d18 ffff14a623428000 [412823.271836] 3a40: ffffb1314abd1000 ffffb12579cd3d70 ffffb1314abd1580 0000000000000000 [412823.279736] 3a60: 7fffffffffffffff 0000000000000000 00000000000009a9 000000000000000e [412823.287635] 3a80: 0000000000000000 ffff7ec4b6144ec0 ffff7ec49d3c21c0 ffff7ec4b737c940 [412823.295534] 3aa0: ffff7ec4a02a1580 ffff7ec4bca37140 ffff7ec4a803a280 ffff7ec4bedfe080 [412823.303433] 3ac0: ffff7ec4ae9d6080 ffff7ec4bef06a40 ffff7ec4bde80980 ffff7ec4a0e36380 [412823.311333] 3ae0: ffff7ec4bbd0c0c0 ffff7ec4b7a297c0 ffff7ec4affc3e80 0000000000040d00 [412823.319232] 3b00: ffffb1314c613c50 ffff14a62229cddc ffffb1314c613d18 ffffb12579cd3d70 [412823.327132] 3b20: ffffb12579cd3bf8 ffff14a623428000 ffff14a622299c80 0000000000c34fff [412823.335031] 3b40: ffffb12c9aeebf00 0000000000000000 0000000000000000 0000000000000000 [412823.342930] 3b60: ffff14a622b34f88 ffff14a622372c18 ffff7ec4adab8f40 0000000000000000 [412823.350829] 3b80: ffffb1314c613bb0 0000000000000000 ffffb1314abd1580 0000000100000000 [412823.358729] 3ba0: 0000000000000000 ffff14a622b34bd0 ffffb1314c613bb0 ffffb1314c613bb0 [412823.366628] 3bc0: ffffb1314c613bc0 ffffb1314c613bc0 ffffb1314c613bd0 ffffb1314c613bd0 [412823.374527] 3be0: ffffb12579cd3bf8 ffffb1314c613d18 00000000000009a1 00000000000009a2 [412823.382427] 3c00: 0000000000000c34 ffff14a6222c8f70 00000000adab8f40 ffffb12579cd3d70 [412823.390326] 3c20: ffffb1314c613d18 ffffb130ff513d00 ffffb1312e0066c0 00000000004e31a1 [412823.398225] 3c40: ffffb1314c613cf0 0000000000040d00 ffffb1314c613cd0 ffff14a62228c66c [412823.406124] 3c60: ffff14a623428000 ffffb12579cd3d70 ffffb12579cd3bf8 0000000000c34fff [412823.414024] 3c80: 0000000000000000 ffffb1306b144bb8 0000ffffaf800000 0000000000000040 [412823.421923] 3ca0: ffffb1314c613d60 ffff14a6222ceadc ffffb1314c613cd0 ffff14a62228c660 [412823.429822] 3cc0: ffff14a623428000 0000000000040d00 ffffb1314c613d80 ffff14a62228ce78 [412823.437722] 3ce0: ffffb12579cd3d70 ffffb12579cd3bf8 ffffb12c9aeebf00 0000000000000000 [412823.445621] 3d00: 0000000000c34fff 0000ffffaf804000 ffffb12daa9a1be0 7fffffffffffffeb [412823.453520] 3d20: 0000000000000000 0000000000000000 0000000000c34fff 0000000000000001 [412823.461420] 3d40: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [412823.469319] 3d60: 0000000000000000 0000000000000000 0000000000000000 0000000000040d00 [412823.477218] 3d80: ffffb1314c613dc0 ffff14a6223e1bf0 0000000000000000 ffffb12579cd3bf8 [412823.485118] 3da0: 0000000000000001 ffffb1314abd5800 0000000000000000 ffffb1314c613ec0 [412823.493017] 3dc0: ffffb1314c613e10 ffff14a62236b634 ffffb12c9aeebf00 0000000000000001 [412823.500916] 3de0: 0000000000000000 0000000000c34fff ffffb12c9aeebf00 ffffb12c9afcc068 [412823.508816] 3e00: ffffb12c9afcc000 ffff14a6222d1ac4 ffffb1314c613e50 ffff14a6222d7ff8 [412823.516715] 3e20: 0000ffffafa8c000 0000ffffaee57000 0000ffffafa8c000 0000000000000004 [412823.524614] 3e40: 0000ffffafa8c000 0000000000000006 0000000000000000 ffff14a6220f3930 [412823.532513] 3e60: 0000000000000000 00009c8b3c710000 ffffffffffffffff 0000ffffafbf46e0 [412823.540413] 3e80: 0000000080000000 0000000000000015 0000000000000124 00000000000000e3 [412823.548312] 3ea0: ffff14a622b01000 ffffb1314c43ad00 ffffffffffffffff ffff0000511a9000 [412823.556211] 3ec0: 0000ffffaee57000 0000000000c35000 0000000000000004 0000000000000000 [412823.564111] 3ee0: 0000aaaae3248f66 0000ffffaf8045d5 3670657277613a39 3a472a6f696f643a [412823.572010] 3f00: 00000000000000e3 696f643a36706572 333639313a472a6f 3670657277613a39 [412823.579909] 3f20: 472a6f696f643a36 613a39333639313a 0000000000000003 0000000000000000 [412823.587809] 3f40: 0000aaaadcd52c80 0000ffffafbf46b8 0000000000000001 0000aaaae3229030 [412823.595708] 3f60: 0000aaaadcd53470 0000ffffffd09a40 0000aaaadcd52000 0000aaaae3210280 [412823.603607] 3f80: 0000000000000001 0000aaaae3229054 0000ffffaee57000 0000000000000006 [412823.611507] 3fa0: 0000ffffffd09a40 0000ffffffd09410 0000aaaadcd38f8c 0000ffffffd09410 [412823.619406] 3fc0: 0000ffffafbf46e0 0000000080000000 0000ffffaee57000 00000000000000e3 [412823.627305] 3fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [412823.635204] Call trace: [412823.637722] Exception stack(0xffffb1314c613580 to 0xffffb1314c6136b0) [412823.644232] 3580: ffffb1314c613850 0001000000000000 ffffb1314c613770 ffff14a6222d8070 [412823.652131] 35a0: 0000000000400145 0000000000000000 0000000000000000 0000000000000000 [412823.660031] 35c0: ffffb1314c6135e0 ffff14a6223028b0 ffffb130ff513d00 ffff14a6223c5bd0 [412823.667930] 35e0: ffffb1314c613620 ffff14a62228e3c8 ffffb1315e007a80 0000000001091220 [412823.675829] 3600: ffffb13156d9be00 0000000001091220 0000000000000000 ffffb13136394f78 [412823.683729] 3620: ffffb1314c613640 ffff14a62228e740 0000000001091220 0000000000040d00 [412823.691628] 3640: 0000000000000001 ffffb119c0000fc0 0000000000000001 0000000000000001 [412823.699527] 3660: ffff14a6222d96e0 01ffff000000107d 0000008000080000 ffff14a623051811 [412823.707427] 3680: 0000000000000001 0000000000000006 ffffb131bffddd00 0000000000000000 [412823.715326] 36a0: ffffffffffffff83 0000000000000040 [412823.720275] [<ffff14a6222d8070>] check_pte+0x20/0x148 [412823.725395] [<ffff14a6222d83dc>] page_vma_mapped_walk+0x244/0x4c0 [412823.731559] [<ffff14a6222d97a0>] page_mkclean_one+0xc0/0x278 [412823.737288] [<ffff14a6222d9a40>] rmap_walk_file+0xe8/0x228 [412823.742844] [<ffff14a6222dbb0c>] rmap_walk+0x64/0xa0 [412823.747878] [<ffff14a6222dbda4>] page_mkclean+0xb4/0xc8 [412823.753175] [<ffff14a62229a210>] clear_page_dirty_for_io+0x80/0x220 [412823.759513] [<ffff14a6223ed224>] mpage_submit_page+0x34/0x90 [412823.765239] [<ffff14a6223ed3e4>] mpage_process_page_bufs+0x164/0x170 [412823.771663] [<ffff14a6223ed530>] mpage_prepare_extent_to_map+0x140/0x2d8 [412823.778434] [<ffff14a6223f2f60>] ext4_writepages+0x3d8/0xcf8 [412823.784163] [<ffff14a62229cddc>] do_writepages+0x5c/0x108 [412823.789632] [<ffff14a62228c66c>] __filemap_fdatawrite_range+0xec/0x128 [412823.796229] [<ffff14a62228ce78>] file_write_and_wait_range+0x58/0xe8 [412823.802653] [<ffff14a6223e1bf0>] ext4_sync_file+0x80/0x468 [412823.808209] [<ffff14a62236b634>] vfs_fsync_range+0x64/0xc0 [412823.813763] [<ffff14a6222d7ff8>] SyS_msync+0x188/0x1e0 [412823.818973] [<ffff14a6220f3930>] el0_svc_naked+0x24/0x28 - [412823.824354] Code: aa1e03e0 d503201f b9403260 f9401261 (f9400021) + [412823.824354] Code: aa1e03e0 d503201f b9403260 f9401261 (f9400021) [412823.830518] ---[ end trace 1d08e28a6fe8dd8e ]--- [412850.810875] watchdog: BUG: soft lockup - CPU#30 stuck for 23s! [doio:19640] - [412850.816964] Modules linked in: binfmt_misc nls_iso8859_1 shpchp tpm_crb ipmi_ssif cppc_cpufreq ipmi_devintf ipmi_msghandler hdma i2c_qup hdma_mgmt ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage at803x aes_ce_blk aes_ce_cipher crc32_ce crct10dif_ce ghash_ce mlx5_core sha2_ce sha1_ce mlxfw devlink ptp pps_core ahci_platform libahci_platform libahci qcom_emac sdhci_acpi sdhci xhci_plat_hcd aes_neon_bs aes_neon_blk crypto_simd cryptd - [412850.873911] CPU: 30 PID: 19640 Comm: doio Tainted: G D 4.13.0-12-generic #13-Ubuntu - [412850.882762] Hardware name: XXX - [412850.896652] task: ffffb1314c438f00 task.stack: ffffb13151150000 - [412850.902647] PC is at _raw_spin_lock+0x38/0x58 - [412850.907073] LR is at alloc_set_pte+0x1cc/0x500 - [412850.911582] pc : [<ffff14a622aec4a8>] lr : [<ffff14a6222cc544>] pstate: 40400145 - [412850.919046] sp : ffffb13151153bd0 - [412850.922431] x29: ffffb13151153bd0 x28: 0000000000000002 - [412850.927814] x27: ffffb12c9afc8468 x26: 0000000000000000 - [412850.933195] x25: ffffb13144152af0 x24: 0000000000000001 - [412850.938577] x23: 0000000000000000 x22: ffffb13144152af0 - [412850.943959] x21: ffff7ec4b7d1a980 x20: ffffb13151153cf0 - [412850.949341] x19: ffff7ec4b6a854b0 x18: 0000000000000001 - [412850.954723] x17: 0000000000000000 x16: 0000000000000000 - [412850.960105] x15: 0000000000000000 x14: 0000000000000001 - [412850.965487] x13: 313a4e2a6f696f64 x12: 3a3670657277613a - [412850.970869] x11: ffff14a623428c08 x10: 0000000000000001 - [412850.976251] x9 : 0000000000000228 x8 : 0000000000000034 - [412850.981633] x7 : 0008000000000000 x6 : ffffb12579ef1918 - [412850.987015] x5 : 0000000000000000 x4 : 0000000000000010 - [412850.992397] x3 : ffff7e0000000000 x2 : 0000000000000001 - [412850.997779] x1 : 0000000000000003 x0 : 0000000000020001 - [412851.003161] Call trace: - [412851.005680] Exception stack(0xffffb13151153aa0 to 0xffffb13151153bd0) - [412851.012191] 3aa0: 0000000000020001 0000000000000003 0000000000000001 ffff7e0000000000 - [412851.020089] 3ac0: 0000000000000010 0000000000000000 ffffb12579ef1918 0008000000000000 - [412851.027989] 3ae0: 0000000000000034 0000000000000228 0000000000000001 ffff14a623428c08 - [412851.035888] 3b00: 3a3670657277613a 313a4e2a6f696f64 0000000000000001 0000000000000000 - [412851.043787] 3b20: 0000000000000000 0000000000000000 0000000000000001 ffff7ec4b6a854b0 - [412851.051686] 3b40: ffffb13151153cf0 ffff7ec4b7d1a980 ffffb13144152af0 0000000000000000 - [412851.059585] 3b60: 0000000000000001 ffffb13144152af0 0000000000000000 ffffb12c9afc8468 - [412851.067485] 3b80: 0000000000000002 ffffb13151153bd0 ffff14a6222cc544 ffffb13151153bd0 - [412851.075384] 3ba0: ffff14a622aec4a8 0000000040400145 ffffb13151153c30 ffff14a6222c8570 - [412851.083283] 3bc0: 0001000000000000 ffffb13144152af0 - [412851.088233] [<ffff14a622aec4a8>] _raw_spin_lock+0x38/0x58 - [412851.093701] [<ffff14a6222cc544>] alloc_set_pte+0x1cc/0x500 - [412851.099256] [<ffff14a6222cc8c8>] finish_fault+0x50/0x90 - [412851.104551] [<ffff14a6222cca5c>] do_fault+0x154/0x4e0 - [412851.109673] [<ffff14a6222ce658>] __handle_mm_fault+0x418/0x7c8 - [412851.115575] [<ffff14a6222ceadc>] handle_mm_fault+0xd4/0x170 - [412851.121218] [<ffff14a622aeea18>] do_page_fault+0x240/0x418 - [412851.126774] [<ffff14a6220f1244>] do_mem_abort+0x6c/0xe0 - [412851.132068] Exception stack(0xffffb13151153e00 to 0xffffb13151153f30) - [412851.138579] 3e00: 0000000000000000 00009c8b3ca04000 ffffffffffffffff 0000ffffafb120f0 - [412851.146478] 3e20: 0000000020000000 0000000000000000 0000000000c35000 0000000000000003 - [412851.154377] 3e40: 0000000000000001 0000000000000007 0000000000000124 00000000000000de - [412851.162277] 3e60: ffff14a622b01000 0000000000c35000 0000000059d3b0bc 0000000000040d00 - [412851.170176] 3e80: 0000000000000000 ffff14a6220f3930 0000000000000000 00009c8b3ca04000 - [412851.178075] 3ea0: ffffffffffffffff 0000ffffafb58a24 0000000040000000 0000000000040d00 - [412851.185974] 3ec0: 0000ffffaf78a6d1 0000aaaae3226870 000000000001addc 0000ffffaf78afd0 - [412851.193874] 3ee0: 0000aaaae324169c 0000ffffaf7a5e3c 7277613a30343639 6f696f643a367065 - [412851.201773] 3f00: 30343639313a4e2a 3a3670657277613a 6f696f643a367065 30343639313a4e2a - [412851.209672] 3f20: 3a3670657277613a 313a4e2a6f696f64 - [412851.214620] [<ffff14a6220f3508>] el0_da+0x20/0x24 - [412882.885567] INFO: rcu_sched self-detected stall on CPU - [412882.889836] 30-...: (14897 ticks this GP) idle=c4e/140000000000001/0 softirq=311560/311560 fqs=7454 - [412882.899119] (t=15000 jiffies g=473052 c=473051 q=2094) - [412882.904503] Task dump for CPU 30: - [412882.907888] doio R running task 0 19640 19637 0x00000002 - [412882.915006] Call trace: - [412882.917528] [<ffff14a6220fb630>] dump_backtrace+0x0/0x278 - [412882.922994] [<ffff14a6220fbc24>] show_stack+0x24/0x30 - [412882.928117] [<ffff14a622179188>] sched_show_task+0xe8/0x130 - [412882.933758] [<ffff14a62217a710>] dump_cpu_task+0x48/0x58 - [412882.939143] [<ffff14a6221bbc8c>] rcu_dump_cpu_stacks+0x9c/0xe4 - [412882.945042] [<ffff14a6221bb2a4>] rcu_check_callbacks+0x694/0x8d8 - [412882.951120] [<ffff14a6221c2a9c>] update_process_times+0x34/0x60 - [412882.957108] [<ffff14a6221d48fc>] tick_sched_handle.isra.5+0x34/0x70 - [412882.963444] [<ffff14a6221d4980>] tick_sched_timer+0x48/0x98 - [412882.969087] [<ffff14a6221c32c4>] __hrtimer_run_queues+0xe4/0x2c0 - [412882.975163] [<ffff14a6221c3e48>] hrtimer_interrupt+0xa8/0x230 - [412882.980983] [<ffff14a622946740>] arch_timer_handler_phys+0x38/0x58 - [412882.987232] [<ffff14a6221acec0>] handle_percpu_devid_irq+0x90/0x260 - [412882.993566] [<ffff14a6221a6c94>] generic_handle_irq+0x34/0x50 - [412882.997591] INFO: rcu_sched detected stalls on CPUs/tasks: - [412883.004937] [<ffff14a6221a73a8>] __handle_domain_irq+0x68/0xc0 - [412883.010840] [<ffff14a6220f1694>] gic_handle_irq+0x84/0x188 - [412883.016395] Exception stack(0xffffb13151153aa0 to 0xffffb13151153bd0) - [412883.022906] 3aa0: 0000000000020001 0000000000000003 0000000000000001 ffff7e0000000000 - [412883.030805] 3ac0: 0000000000000010 0000000000000000 ffffb12579ef1918 0008000000000000 - [412883.038705] 3ae0: 0000000000000034 0000000000000228 0000000000000001 ffff14a623428c08 - [412883.046604] 3b00: 3a3670657277613a 313a4e2a6f696f64 0000000000000001 0000000000000000 - [412883.054503] 3b20: 0000000000000000 0000000000000000 0000000000000001 ffff7ec4b6a854b0 - [412883.062402] 3b40: ffffb13151153cf0 ffff7ec4b7d1a980 ffffb13144152af0 0000000000000000 - [412883.070302] 3b60: 0000000000000001 ffffb13144152af0 0000000000000000 ffffb12c9afc8468 - [412883.078201] 3b80: 0000000000000002 ffffb13151153bd0 ffff14a6222cc544 ffffb13151153bd0 - [412883.086100] 3ba0: ffff14a622aec4a8 0000000040400145 ffffb13151153c30 ffff14a6222c8570 - [412883.093999] 3bc0: 0001000000000000 ffffb13144152af0 - [412883.098947] [<ffff14a6220f315c>] el1_irq+0xdc/0x180 - [412883.103898] [<ffff14a622aec4a8>] _raw_spin_lock+0x38/0x58 - [412883.109367] [<ffff14a6222cc544>] alloc_set_pte+0x1cc/0x500 - [412883.114920] [<ffff14a6222cc8c8>] finish_fault+0x50/0x90 - [412883.120215] [<ffff14a6222cca5c>] do_fault+0x154/0x4e0 - [412883.125337] [<ffff14a6222ce658>] __handle_mm_fault+0x418/0x7c8 - [412883.131240] [<ffff14a6222ceadc>] handle_mm_fault+0xd4/0x170 - [412883.136882] [<ffff14a622aeea18>] do_page_fault+0x240/0x418 - [412883.142437] [<ffff14a6220f1244>] do_mem_abort+0x6c/0xe0 - [412883.147732] Exception stack(0xffffb13151153e00 to 0xffffb13151153f30) - [412883.154243] 3e00: 0000000000000000 00009c8b3ca04000 ffffffffffffffff 0000ffffafb120f0 - [412883.162142] 3e20: 0000000020000000 0000000000000000 0000000000c35000 0000000000000003 - [412883.170041] 3e40: 0000000000000001 0000000000000007 0000000000000124 00000000000000de - [412883.177941] 3e60: ffff14a622b01000 0000000000c35000 0000000059d3b0bc 0000000000040d00 - [412883.185840] 3e80: 0000000000000000 ffff14a6220f3930 0000000000000000 00009c8b3ca04000 - [412883.193739] 3ea0: ffffffffffffffff 0000ffffafb58a24 0000000040000000 0000000000040d00 - [412883.201639] 3ec0: 0000ffffaf78a6d1 0000aaaae3226870 000000000001addc 0000ffffaf78afd0 - [412883.209538] 3ee0: 0000aaaae324169c 0000ffffaf7a5e3c 7277613a30343639 6f696f643a367065 - [412883.217437] 3f00: 30343639313a4e2a 3a3670657277613a 6f696f643a367065 30343639313a4e2a - [412883.225336] 3f20: 3a3670657277613a 313a4e2a6f696f64 - [412883.230284] [<ffff14a6220f3508>] el0_da+0x20/0x24 - [412883.235064] 30-...: (14897 ticks this GP) idle=c4e/140000000000001/0 softirq=311560/311560 fqs=7455 - [412883.244347] (detected by 8, t=15089 jiffies, g=473052, c=473051, q=2318) - [412883.251205] Task dump for CPU 30: - [412883.254589] doio R running task 0 19640 19637 0x00000002 - [412883.261707] Call trace: - [412883.264228] [<ffff14a6220f6020>] __switch_to+0x98/0xb0 - [412883.269433] [< (null)>] (null) + [Test] Compile LTP and run the following test: sudo ./runltp -p -f fs -s rwtest [Fix] The following patch posted to linux-arm-kernel fixes this issue. http://lists.infradead.org/pipermail/linux-arm-kernel/2017-September/533623.html [Regression Potential] This patch applies to ARM64 and does not impact any other architecture. Regression potential none.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1721067 Title: [zesty][Artful] ltp rwtest - Unable to handle kernel paging request at virtual address Status in linux package in Ubuntu: Incomplete Bug description: [Impact] Running LTP rwtest casues system crash on ARM64 with 4k pages in THP code. Ubuntu Artful Aardvark (development branch) XXX ttyAMA1 XXX login: [412822.864619] Unable to handle kernel paging request at virtual address ffffb119c0000fc0 [412822.871676] swapper pgtable: 4k pages, 48-bit VAs, pgd = ffff14a623699000 [412822.878551] [ffffb119c0000fc0] *pgd=00000017ffff7003, *pud=00000017ffff6003, *pmd=0000000000000000 [412822.887571] Internal error: Oops: 96000006 [#1] SMP [412822.892499] Modules linked in: binfmt_misc nls_iso8859_1 shpchp tpm_crb ipmi_ssif cppc_cpufreq ipmi_devintf ipmi_msghandler hdma i2c_qup hdma_mgmt ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear uas usb_storage at803x aes_ce_blk aes_ce_cipher crc32_ce crct10dif_ce ghash_ce mlx5_core sha2_ce sha1_ce mlxfw devlink ptp pps_core ahci_platform libahci_platform libahci qcom_emac sdhci_acpi sdhci xhci_plat_hcd aes_neon_bs aes_neon_blk crypto_simd cryptd [412822.949443] CPU: 3 PID: 19639 Comm: doio Not tainted 4.13.0-12-generic #13-Ubuntu [412822.956993] Hardware name: XXX [412822.970882] task: ffffb1314c43ad00 task.stack: ffffb1314c610000 [412822.976877] PC is at check_pte+0x20/0x148 [412822.980953] LR is at page_vma_mapped_walk+0x244/0x4c0 [412822.986073] pc : [<ffff14a6222d8070>] lr : [<ffff14a6222d83dc>] pstate: 00400145 [412822.993538] sp : ffffb1314c613770 [412822.996923] x29: ffffb1314c613770 x28: ffffb1314c613be0 [412823.002305] x27: 0000ffffaf7f8000 x26: 0008000000000080 [412823.007687] x25: 00000000000001f8 x24: 0400000000000001 [412823.013069] x23: ffff14a622e8f000 x22: ffffb12c9afc8400 [412823.018451] x21: ffff7ec4bedfe080 x20: 0400000000000001 [412823.023833] x19: ffffb1314c613850 x18: 0000000000000001 [412823.029215] x17: 0000000000000001 x16: 0000000000000000 [412823.034597] x15: 0000000000000000 x14: ffffb12579b91fd0 [412823.039979] x13: 0000000000000040 x12: ffffffffffffff83 [412823.045360] x11: 0000000000000000 x10: ffffb131bffddd00 [412823.050742] x9 : 0000000000000006 x8 : 0000000000000001 [412823.056124] x7 : ffff14a623051811 x6 : 0000008000080000 [412823.061506] x5 : 01ffff000000107d x4 : ffff14a6222d96e0 [412823.066888] x3 : 0000000000000001 x2 : 0000000000000001 [412823.072270] x1 : ffffb119c0000fc0 x0 : 0000000000000001 [412823.077652] Process doio (pid: 19639, stack limit = 0xffffb1314c610000) [412823.084336] Stack: (0xffffb1314c613770 to 0xffffb1314c614000) [412823.090152] 3760: ffffb1314c613790 ffff14a6222d83dc [412823.098052] 3780: ffffb1314c613850 ffffb12500000000 ffffb1314c6137e0 ffff14a6222d97a0 [412823.105951] 37a0: ffffb13144152af0 ffffb1314c61393c 0000ffffaf7f9000 0040000000000001 [412823.113850] 37c0: 0040000000000041 ffffb1314c61393c 0000000000000000 0000000001011200 [412823.121750] 37e0: ffffb1314c613890 ffff14a6222d9a40 0000ffffaf7f8000 ffff7ec4bedfe080 [412823.129649] 3800: ffffb1314c613940 00000000000009a1 00000000000009a1 ffffb12579cd3d70 [412823.137548] 3820: 0000000000000000 ffffb13144152af0 ffffb12579cd3d98 ffffb1314c613be0 [412823.145447] 3840: ffffb1306b144bb8 0000ffffaf7f9000 ffff7ec4bedfe080 ffffb13144152af0 [412823.153347] 3860: 0000ffffaf7f8000 ffffb130ff713bd8 ffffb119c0000fc0 ffff7ec4b6a854b0 [412823.161246] 3880: 0000000000000001 0000000000040d00 ffffb1314c6138f0 ffff14a6222dbb0c [412823.169145] 38a0: ffff7ec4bedfe080 ffffb1314c613940 0000000000000001 ffffb1314c613be0 [412823.177045] 38c0: ffffb1257880ebc8 0000000000000000 ffffb12579cd3d70 0000000000000002 [412823.184944] 38e0: ffff14a623428000 ffff14a62240ebd0 ffffb1314c613910 ffff14a6222dbda4 [412823.192843] 3900: ffff14a623428000 ffff7ec4bedfe080 ffffb1314c613970 ffff14a62229a210 [412823.200743] 3920: ffff7ec4bedfe080 ffffb12579cd3bf8 ffff7ec4a803a280 000000012240e7e8 [412823.208642] 3940: ffffb1314c61393c ffff14a6222d96e0 0000000000000000 0000000000000000 [412823.216541] 3960: ffff14a6222d9340 0000000000040d00 ffffb1314c6139b0 ffff14a6223ed224 [412823.224441] 3980: ffffb1314c613be0 ffff7ec4bedfe080 0000000000000c35 ffffb1314c613be0 [412823.232340] 39a0: ffffb1257880ebc8 00000001000009c0 ffffb1314c6139d0 ffff14a6223ed3e4 [412823.240239] 39c0: ffffb1257880ebc8 00000000000009a2 ffffb1314c613a10 ffff14a6223ed530 [412823.248138] 39e0: ffff7ec4bedfe080 ffffb1314c613ac0 7fffffffffffffeb ffffb1314c613af8 [412823.256038] 3a00: 0000000000000c34 ffff14a6222f5858 ffffb1314c613b00 ffff14a6223f2f60 [412823.263937] 3a20: 0000000004000000 ffffb12579cd3bf8 ffffb1314c613d18 ffff14a623428000 [412823.271836] 3a40: ffffb1314abd1000 ffffb12579cd3d70 ffffb1314abd1580 0000000000000000 [412823.279736] 3a60: 7fffffffffffffff 0000000000000000 00000000000009a9 000000000000000e [412823.287635] 3a80: 0000000000000000 ffff7ec4b6144ec0 ffff7ec49d3c21c0 ffff7ec4b737c940 [412823.295534] 3aa0: ffff7ec4a02a1580 ffff7ec4bca37140 ffff7ec4a803a280 ffff7ec4bedfe080 [412823.303433] 3ac0: ffff7ec4ae9d6080 ffff7ec4bef06a40 ffff7ec4bde80980 ffff7ec4a0e36380 [412823.311333] 3ae0: ffff7ec4bbd0c0c0 ffff7ec4b7a297c0 ffff7ec4affc3e80 0000000000040d00 [412823.319232] 3b00: ffffb1314c613c50 ffff14a62229cddc ffffb1314c613d18 ffffb12579cd3d70 [412823.327132] 3b20: ffffb12579cd3bf8 ffff14a623428000 ffff14a622299c80 0000000000c34fff [412823.335031] 3b40: ffffb12c9aeebf00 0000000000000000 0000000000000000 0000000000000000 [412823.342930] 3b60: ffff14a622b34f88 ffff14a622372c18 ffff7ec4adab8f40 0000000000000000 [412823.350829] 3b80: ffffb1314c613bb0 0000000000000000 ffffb1314abd1580 0000000100000000 [412823.358729] 3ba0: 0000000000000000 ffff14a622b34bd0 ffffb1314c613bb0 ffffb1314c613bb0 [412823.366628] 3bc0: ffffb1314c613bc0 ffffb1314c613bc0 ffffb1314c613bd0 ffffb1314c613bd0 [412823.374527] 3be0: ffffb12579cd3bf8 ffffb1314c613d18 00000000000009a1 00000000000009a2 [412823.382427] 3c00: 0000000000000c34 ffff14a6222c8f70 00000000adab8f40 ffffb12579cd3d70 [412823.390326] 3c20: ffffb1314c613d18 ffffb130ff513d00 ffffb1312e0066c0 00000000004e31a1 [412823.398225] 3c40: ffffb1314c613cf0 0000000000040d00 ffffb1314c613cd0 ffff14a62228c66c [412823.406124] 3c60: ffff14a623428000 ffffb12579cd3d70 ffffb12579cd3bf8 0000000000c34fff [412823.414024] 3c80: 0000000000000000 ffffb1306b144bb8 0000ffffaf800000 0000000000000040 [412823.421923] 3ca0: ffffb1314c613d60 ffff14a6222ceadc ffffb1314c613cd0 ffff14a62228c660 [412823.429822] 3cc0: ffff14a623428000 0000000000040d00 ffffb1314c613d80 ffff14a62228ce78 [412823.437722] 3ce0: ffffb12579cd3d70 ffffb12579cd3bf8 ffffb12c9aeebf00 0000000000000000 [412823.445621] 3d00: 0000000000c34fff 0000ffffaf804000 ffffb12daa9a1be0 7fffffffffffffeb [412823.453520] 3d20: 0000000000000000 0000000000000000 0000000000c34fff 0000000000000001 [412823.461420] 3d40: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [412823.469319] 3d60: 0000000000000000 0000000000000000 0000000000000000 0000000000040d00 [412823.477218] 3d80: ffffb1314c613dc0 ffff14a6223e1bf0 0000000000000000 ffffb12579cd3bf8 [412823.485118] 3da0: 0000000000000001 ffffb1314abd5800 0000000000000000 ffffb1314c613ec0 [412823.493017] 3dc0: ffffb1314c613e10 ffff14a62236b634 ffffb12c9aeebf00 0000000000000001 [412823.500916] 3de0: 0000000000000000 0000000000c34fff ffffb12c9aeebf00 ffffb12c9afcc068 [412823.508816] 3e00: ffffb12c9afcc000 ffff14a6222d1ac4 ffffb1314c613e50 ffff14a6222d7ff8 [412823.516715] 3e20: 0000ffffafa8c000 0000ffffaee57000 0000ffffafa8c000 0000000000000004 [412823.524614] 3e40: 0000ffffafa8c000 0000000000000006 0000000000000000 ffff14a6220f3930 [412823.532513] 3e60: 0000000000000000 00009c8b3c710000 ffffffffffffffff 0000ffffafbf46e0 [412823.540413] 3e80: 0000000080000000 0000000000000015 0000000000000124 00000000000000e3 [412823.548312] 3ea0: ffff14a622b01000 ffffb1314c43ad00 ffffffffffffffff ffff0000511a9000 [412823.556211] 3ec0: 0000ffffaee57000 0000000000c35000 0000000000000004 0000000000000000 [412823.564111] 3ee0: 0000aaaae3248f66 0000ffffaf8045d5 3670657277613a39 3a472a6f696f643a [412823.572010] 3f00: 00000000000000e3 696f643a36706572 333639313a472a6f 3670657277613a39 [412823.579909] 3f20: 472a6f696f643a36 613a39333639313a 0000000000000003 0000000000000000 [412823.587809] 3f40: 0000aaaadcd52c80 0000ffffafbf46b8 0000000000000001 0000aaaae3229030 [412823.595708] 3f60: 0000aaaadcd53470 0000ffffffd09a40 0000aaaadcd52000 0000aaaae3210280 [412823.603607] 3f80: 0000000000000001 0000aaaae3229054 0000ffffaee57000 0000000000000006 [412823.611507] 3fa0: 0000ffffffd09a40 0000ffffffd09410 0000aaaadcd38f8c 0000ffffffd09410 [412823.619406] 3fc0: 0000ffffafbf46e0 0000000080000000 0000ffffaee57000 00000000000000e3 [412823.627305] 3fe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [412823.635204] Call trace: [412823.637722] Exception stack(0xffffb1314c613580 to 0xffffb1314c6136b0) [412823.644232] 3580: ffffb1314c613850 0001000000000000 ffffb1314c613770 ffff14a6222d8070 [412823.652131] 35a0: 0000000000400145 0000000000000000 0000000000000000 0000000000000000 [412823.660031] 35c0: ffffb1314c6135e0 ffff14a6223028b0 ffffb130ff513d00 ffff14a6223c5bd0 [412823.667930] 35e0: ffffb1314c613620 ffff14a62228e3c8 ffffb1315e007a80 0000000001091220 [412823.675829] 3600: ffffb13156d9be00 0000000001091220 0000000000000000 ffffb13136394f78 [412823.683729] 3620: ffffb1314c613640 ffff14a62228e740 0000000001091220 0000000000040d00 [412823.691628] 3640: 0000000000000001 ffffb119c0000fc0 0000000000000001 0000000000000001 [412823.699527] 3660: ffff14a6222d96e0 01ffff000000107d 0000008000080000 ffff14a623051811 [412823.707427] 3680: 0000000000000001 0000000000000006 ffffb131bffddd00 0000000000000000 [412823.715326] 36a0: ffffffffffffff83 0000000000000040 [412823.720275] [<ffff14a6222d8070>] check_pte+0x20/0x148 [412823.725395] [<ffff14a6222d83dc>] page_vma_mapped_walk+0x244/0x4c0 [412823.731559] [<ffff14a6222d97a0>] page_mkclean_one+0xc0/0x278 [412823.737288] [<ffff14a6222d9a40>] rmap_walk_file+0xe8/0x228 [412823.742844] [<ffff14a6222dbb0c>] rmap_walk+0x64/0xa0 [412823.747878] [<ffff14a6222dbda4>] page_mkclean+0xb4/0xc8 [412823.753175] [<ffff14a62229a210>] clear_page_dirty_for_io+0x80/0x220 [412823.759513] [<ffff14a6223ed224>] mpage_submit_page+0x34/0x90 [412823.765239] [<ffff14a6223ed3e4>] mpage_process_page_bufs+0x164/0x170 [412823.771663] [<ffff14a6223ed530>] mpage_prepare_extent_to_map+0x140/0x2d8 [412823.778434] [<ffff14a6223f2f60>] ext4_writepages+0x3d8/0xcf8 [412823.784163] [<ffff14a62229cddc>] do_writepages+0x5c/0x108 [412823.789632] [<ffff14a62228c66c>] __filemap_fdatawrite_range+0xec/0x128 [412823.796229] [<ffff14a62228ce78>] file_write_and_wait_range+0x58/0xe8 [412823.802653] [<ffff14a6223e1bf0>] ext4_sync_file+0x80/0x468 [412823.808209] [<ffff14a62236b634>] vfs_fsync_range+0x64/0xc0 [412823.813763] [<ffff14a6222d7ff8>] SyS_msync+0x188/0x1e0 [412823.818973] [<ffff14a6220f3930>] el0_svc_naked+0x24/0x28 [412823.824354] Code: aa1e03e0 d503201f b9403260 f9401261 (f9400021) [412823.830518] ---[ end trace 1d08e28a6fe8dd8e ]--- [412850.810875] watchdog: BUG: soft lockup - CPU#30 stuck for 23s! [doio:19640] [Test] Compile LTP and run the following test: sudo ./runltp -p -f fs -s rwtest [Fix] The following patch posted to linux-arm-kernel fixes this issue. http://lists.infradead.org/pipermail/linux-arm-kernel/2017-September/533623.html [Regression Potential] This patch applies to ARM64 and does not impact any other architecture. Regression potential none. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1721067/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
