** Also affects: linux (Ubuntu Artful)
Importance: Critical
Assignee: Manoj Iyer (manjo)
Status: Incomplete
** Changed in: linux (Ubuntu Artful)
Status: Incomplete => Fix Committed
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https://bugs.launchpad.net/bugs/1721067
Title:
[Artful] ltp rwtest - Unable to handle kernel paging request at
virtual address
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Artful:
Fix Committed
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.
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