Apparently lundmark has ECC memory problems:
lundmark login: [13906.806163] Synchronous External Abort: synchronous parity
or ECC error (0x96000018) at 0x0000ffffa1a36000
[13906.819864] Internal error: : 96000018 [#2] SMP
[13906.826338] Modules linked in: nls_iso8859_1 i2c_thunderx thunderx_edac
i2c_smbus thunderx_zip gpio_keys shpchp cavium_rng_vf cavium_rng uio_pdrv_gen
irq ipmi_ssif uio ipmi_devintf ipmi_msghandler ib_iser rdma_cm iw_cm ib_cm
ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs ra
id10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor
raid6_pq libcrc32c raid1 raid0 multipath linear nicvf nicpf ast i2c_algo_bit
ttm drm_kms_helper syscopyarea sysfillrect sysimgblt aes_ce_blk fb_sys_fops
aes_ce_cipher crc32_ce drm crct10dif_ce ghash_ce sha2_ce sha1_ce ahci libah
ci thunder_bgx thunder_xcv mdio_thunder thunderx_mmc mdio_cavium aes_neon_bs
aes_neon_blk crypto_simd cryptd
[13906.907111] CPU: 0 PID: 43189 Comm: cc1 Tainted: G D
4.13.0-33-generic #36~kpti414backport
[13906.921356] Hardware name: Cavium ThunderX CRB/To be filled by O.E.M., BIOS
5.11 12/12/2012
[13906.932232] task: ffff801ebfb65a00 task.stack: ffff000017938000
[13906.940682] PC is at __arch_copy_to_user+0x140/0x248
[13906.948211] LR is at cp_new_stat+0x188/0x198
[13906.954972] pc : [<ffff000008a82040>] lr : [<ffff0000082d10d8>] pstate:
80000145
[13906.964884] sp : ffff00001793bd40
[13906.970651] x29: ffff00001793bd40 x28: ffff801ebfb65a00
[13906.978453] x27: ffff000008ab2000 x26: 0000000000000050
[13906.986192] x25: 0000000000000124 x24: 0000000000000015
[13906.993908] x23: 0000000000000000 x22: 000000001793bd98
[13907.001571] x21: ffff801ebfb65a00 x20: ffff0000093d8000
[13907.009221] x19: ffff00001793be30 x18: 0000000000000000
[13907.016833] x17: 0000ffffa2987748 x16: ffff0000082d17a0
[13907.024426] x15: ffffffffffffffff x14: ff00000000000000
[13907.032072] x13: ffffffffffffffff x12: 0000000000000002
[13907.039698] x11: 0000000000000004 x10: 0000000000000000
[13907.047360] x9 : 000003e8000003e8 x8 : 00000001000081b4
[13907.054885] x7 : 00000000019a0839 x6 : 000000001793bdb0
[13907.062466] x5 : 000000001793be18 x4 : 0000000000000008
[13907.070147] x3 : 0000000000000802 x2 : fffffffffffffff8
[13907.077750] x1 : ffff00001793bda0 x0 : 000000001793bd98
[13907.085277] Process cc1 (pid: 43189, stack limit = 0xffff000017938000)
[13907.094022] Stack: (0xffff00001793bd40 to 0xffff00001793c000)
[22/7865]
[13907.102004] bd40: ffff00001793be00 ffff0000082d17f8 ffff0000093d8000
0000000000000004
[13907.112119] bd60: 000000001793bd98 0000ffffa298775c ffff801ce388f710
0000000000000802
[13907.122311] bd80: 00000000019a0839 00000001000081b4 000003e8000003e8
0000000000000000
[13907.132302] bda0: 0000000000000000 000000000000075c 0000000000001000
0000000000000008
[13907.142201] bdc0: 000000005a857e32 000000001eb68da6 000000005a857a9a
000000002a0b1064
[13907.152053] bde0: 000000005a857a9a 000000002a0b1064 0000000000000000
0000000000040d00
[13907.161858] be00: ffff00001793bff0 ffff000008083c00 ffffffffffffff2c
0000801f7375f000
[13907.171601] be20: 00000000ffffffff 0000000017940200 000081b400000fff
0000100000000001
[13907.181425] be40: 0000000000000000 0000000000000874 00000000019a0839
0000000000800002
[13907.191582] be60: 000003e8000003e8 000000000000075c 000000005a857e32
000000001eb68da6
[13907.201202] be80: 000000005a857a9a 000000002a0b1064 000000005a857a9a
000000002a0b1064
[13907.210827] bea0: 000000005a857a9a 000000002a0b1064 0000000000000008
0000000000040d00
[13907.220314] bec0: 0000000000000004 000000001793bd98 000000001793bd98
0000000000000000
[13907.229797] bee0: 00000000178ddb40 0000000000000006 00000000000001fd
0000000000000008
[13907.239364] bf00: 0000000000000050 0000000000000004 0101010101010101
0000000000000004
[13907.248763] bf20: 0000000000000002 ffffffffffffffff ff00000000000000
ffffffffffffffff
[13907.258136] bf40: 000000000118b008 0000ffffa2987748 0000000000000000
000000001793bd50
[13907.267557] bf60: 000000001793bd50 0000000017819fc0 0000000017940200
000000001791ff70
[13907.276998] bf80: 000000001789ef90 00000000505fd91e 0000000000000000
0000000000000001
[13907.286323] bfa0: 0000000000000000 0000ffffda518ce0 0000000000d9b3ac
0000ffffda518ce0
[13907.295739] bfc0: 0000ffffa298775c 0000000000000000 0000000000000004
0000000000000050
[13907.305097] bfe0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[13907.314448] Call trace:
[13907.318490] Exception stack(0xffff00001793bc00 to 0xffff00001793bd40)
[13907.326649] bc00: 000000001793bd98 ffff00001793bda0 fffffffffffffff8
0000000000000802
[13907.336198] bc20: 0000000000000008 000000001793be18 000000001793bdb0
00000000019a0839
[13907.345688] bc40: 00000001000081b4 000003e8000003e8 0000000000000000
0000000000000004
[13907.355204] bc60: 0000000000000002 ffffffffffffffff ff00000000000000
ffffffffffffffff
[13907.364845] bc80: ffff0000082d17a0 0000ffffa2987748 0000000000000000
ffff00001793be30
[13907.374415] bca0: ffff0000093d8000 ffff801ebfb65a00 000000001793bd98
0000000000000000
[13907.383982] bcc0: 0000000000000015 0000000000000124 0000000000000050
ffff000008ab2000
[13907.393622] bce0: ffff801ebfb65a00 ffff00001793bd40 ffff0000082d10d8
ffff00001793bd40
[13907.403244] bd00: ffff000008a82040 0000000080000145 ffff00001793bd30
ffff0000083930e4
[13907.412890] bd20: 0000ffffffffffff ffff0000082d1018 ffff00001793bd40
ffff000008a82040
[13907.422611] [<ffff000008a82040>] __arch_copy_to_user+0x140/0x248
[13907.430452] [<ffff0000082d17f8>] SyS_newfstat+0x58/0x88
[13907.437420] Exception stack(0xffff00001793bec0 to 0xffff00001793c000)
[13907.445694] bec0: 0000000000000004 000000001793bd98 000000001793bd98
0000000000000000
[13907.455404] bee0: 00000000178ddb40 0000000000000006 00000000000001fd
0000000000000008
[13907.464995] bf00: 0000000000000050 0000000000000004 0101010101010101
0000000000000004
[13907.474690] bf20: 0000000000000002 ffffffffffffffff ff00000000000000
ffffffffffffffff
[13907.484298] bf40: 000000000118b008 0000ffffa2987748 0000000000000000
000000001793bd50
[13907.494060] bf60: 000000001793bd50 0000000017819fc0 0000000017940200
000000001791ff70
[13907.503781] bf80: 000000001789ef90 00000000505fd91e 0000000000000000
0000000000000001
[13907.513428] bfa0: 0000000000000000 0000ffffda518ce0 0000000000d9b3ac
0000ffffda518ce0
[13907.523099] bfc0: 0000ffffa298775c 0000000000000000 0000000000000004
0000000000000050
[13907.532754] bfe0: 0000000000000000 0000000000000000 0000000000000000
0000000000000000
[13907.542408] [<ffff000008083c00>] el0_svc_naked+0x34/0x38
[13907.549542] Code: a88120c7 d503201f d503201f a8c12829 (a8c1302b)
[13907.557472] ---[ end trace d53e2d07571b0a7e ]---
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https://bugs.launchpad.net/bugs/1749685
Title:
Kernel panic on ThunderX
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