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Message #02611
[Bug 2051184] Re: ubuntu_boot test failures on b/linux-gcp-5.4 on c3a-standard instance
** Tags added: 5.4 bionic gcp sru-20240108 ubuntu-boot
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https://bugs.launchpad.net/bugs/2051184
Title:
ubuntu_boot test failures on b/linux-gcp-5.4 on c3a-standard instance
Status in ubuntu-kernel-tests:
New
Bug description:
Boot testing fails for b/gcp-5.4 on new c3a-standard instance as
below:
Causes WARNING at: arch/arm64/kernel/cpu_errata.c:1387
spectre_bhb_enable_mitigation+0x148
[ 0.060607] WARNING: CPU: 3 PID: 29 at /build/linux-gcp-5.4-FHHMzo/linux-gcp-5.4-5.4.0/arch/arm64/kernel/cpu_errata.c:1387 spectre_bhb_enable_mitigation+0x148/0x228
[ 0.060612] WARNING: CPU: 2 PID: 23 at /build/linux-gcp-5.4-FHHMzo/linux-gcp-5.4-5.4.0/arch/arm64/kernel/cpu_errata.c:1387 spectre_bhb_enable_mitigation+0x148/0x228
[ 0.060613] Modules linked in:
[ 0.060615] Modules linked in:
[ 0.060621] CPU: 3 PID: 29 Comm: migration/3 Not tainted 5.4.0-1122-gcp #131~18.04.1-Ubuntu
[ 0.060622] CPU: 2 PID: 23 Comm: migration/2 Not tainted 5.4.0-1122-gcp #131~18.04.1-Ubuntu
[ 0.060628] WARNING: CPU: 1 PID: 17 at /build/linux-gcp-5.4-FHHMzo/linux-gcp-5.4-5.4.0/arch/arm64/kernel/cpu_errata.c:1387 spectre_bhb_enable_mitigation+0x148/0x228
[ 0.060629] pstate: 20400085 (nzCv daIf +PAN -UAO)
[ 0.060630] Modules linked in:
[ 0.060632] pc : spectre_bhb_enable_mitigation+0x148/0x228
[ 0.060635] lr : spectre_bhb_enable_mitigation+0x120/0x228
[ 0.060636] CPU: 1 PID: 17 Comm: migration/1 Not tainted 5.4.0-1122-gcp #131~18.04.1-Ubuntu
[ 0.060637] sp : ffff80001012bce0
[ 0.060639] pstate: 20400085 (nzCv daIf +PAN -UAO)
[ 0.060639] x29: ffff80001012bce0 x28: 0000000000000002
[ 0.060642] pc : spectre_bhb_enable_mitigation+0x148/0x228
[ 0.060645] lr : spectre_bhb_enable_mitigation+0x120/0x228
[ 0.060646] x27: ffff80001003bd10
[ 0.060647] sp : ffff8000100fbce0
[ 0.060647] x26: 0000000000000000
[ 0.060648] x29: ffff8000100fbce0
[ 0.060650] x28: 0000000000000002
[ 0.060652] x25: 0000000000000060
[ 0.060653] x24: 0000000000000000
[ 0.060655] x27: ffff80001003bd10 x26: 0000000000000000
[ 0.060657] x23: 0000000000000001
[ 0.060661] x22: ffffdca01ea9a3c0
[ 0.060663] x25: 0000000000000060 x24: 0000000000000000
[ 0.060665] x21: ffffdca01dda4970
[ 0.060668] x20: 0000000000000001
[ 0.060669] x23: 0000000000000001 x22: ffffdca01ea9a3c0
[ 0.060671] x19: ffffdca01ecca000
[ 0.060675] x18: ffffdca01dc56a10
[ 0.060680] x21: ffffdca01dda4970 x20: 0000000000000001
[ 0.060684] x17: 00000000bc8dcec3
[ 0.060687] x16: 00000000b1e1b9b5
[ 0.060688] x19: ffffdca01ecca000 x18: ffffdca01dc56a10
[ 0.060694] x17: 000000007e50fa5f
[ 0.060694] x15: 0000000000000001
[ 0.060695] x16: 000000009cd7320e
[ 0.060696] x14: ffff74e6bd9c01c8
[ 0.060699] x13: 0000000000000004
[ 0.060701] x15: 0000000000000001
[ 0.060702] x12: 0000000000000228
[ 0.060703] x14: ffff74e6bd99f1c8
[ 0.060705] x11: 0000000000000000
[ 0.060711] x13: 0000000000000004
[ 0.060712] x10: 0000000000000b00
[ 0.060713] x12: 0000000000000228
[ 0.060716] x11: 0000000000000000
[ 0.060722] x9 : ffff80001012bd20
[ 0.060723] x10: 0000000000000b00
[ 0.060724] x8 : ffff74e6ba3c66e0
[ 0.060726] x7 : 0000000000000000 x6 : ffffdca01d822000
[ 0.060727] x9 : ffff8000100fbd20
[ 0.060729] x8 : ffff74e6ba33a9e0
[ 0.060729] x5 : 00000000c00fac30
[ 0.060730] x4 : 0000000000000000
[ 0.060731] x7 : 0000000000000000
[ 0.060734] x6 : ffffdca01d822000
[ 0.060735] x3 : 000000000000000b
[ 0.060736] x2 : ffffdca01ecca508
[ 0.060738] x5 : 00000000c00fac30 x4 : 0000000000000000
[ 0.060740] x1 : 000000000000000b
[ 0.060742] x0 : 000000000000000b
[ 0.060746] x3 : 000000000000000b x2 : ffffdca01ecca508
[ 0.060749] Call trace:
[ 0.060751] x1 : 000000000000000b
[ 0.060753] spectre_bhb_enable_mitigation+0x148/0x228
[ 0.060755] x0 : 000000000000000b
[ 0.060757] cpu_enable_non_boot_scope_capabilities+0x6c/0xa8
[ 0.060761] multi_cpu_stop+0xac/0x188
[ 0.060762] Call trace:
[ 0.060763] cpu_stopper_thread+0xe4/0x1a0
[ 0.060766] spectre_bhb_enable_mitigation+0x148/0x228
[ 0.060769] smpboot_thread_fn+0x1a8/0x1d8
[ 0.060771] cpu_enable_non_boot_scope_capabilities+0x6c/0xa8
[ 0.060773] kthread+0x114/0x118
[ 0.060775] multi_cpu_stop+0xac/0x188
[ 0.060778] ret_from_fork+0x10/0x18
[ 0.060779] cpu_stopper_thread+0xe4/0x1a0
[ 0.060780] ---[ end trace 82b1638f0eea221b ]---
[ 0.060783] smpboot_thread_fn+0x1a8/0x1d8
[ 0.060785] kthread+0x114/0x118
[ 0.060787] ret_from_fork+0x10/0x18
[ 0.060789] ---[ end trace 82b1638f0eea221c ]---
[ 0.060797] pstate: 20400085 (nzCv daIf +PAN -UAO)
[ 0.060799] pc : spectre_bhb_enable_mitigation+0x148/0x228
[ 0.060800] lr : spectre_bhb_enable_mitigation+0x120/0x228
[ 0.060801] sp : ffff80001015bce0
[ 0.060802] x29: ffff80001015bce0 x28: 0000000000000002
[ 0.060804] x27: ffff80001003bd10 x26: 0000000000000000
[ 0.060805] x25: 0000000000000060 x24: 0000000000000000
[ 0.060806] x23: 0000000000000001 x22: ffffdca01ea9a3c0
[ 0.060807] x21: ffffdca01dda4970 x20: 0000000000000001
[ 0.060808] x19: ffffdca01ecca000 x18: ffffdca01dc56a10
[ 0.060809] x17: 000000002041ff62 x16: 0000000057377f7c
[ 0.060811] x15: 0000000000000001 x14: ffff74e6bd9e11c8
[ 0.060812] x13: 0000000000000004 x12: 0000000000000228
[ 0.060813] x11: 0000000000000000 x10: 0000000000000000
[ 0.060814] x9 : 0000000000000000 x8 : 0000000000000000
[ 0.060815] x7 : ffff74e6bd9f5bc0 x6 : ffffdca01d822000
[ 0.060816] x5 : 00000000c00fac30 x4 : 0000000000000000
[ 0.060817] x3 : 000000000000000b x2 : ffffdca01ecca508
[ 0.060818] x1 : 000000000000000b x0 : 000000000000000b
[ 0.060820] Call trace:
[ 0.060822] spectre_bhb_enable_mitigation+0x148/0x228
[ 0.060823] cpu_enable_non_boot_scope_capabilities+0x6c/0xa8
[ 0.060826] multi_cpu_stop+0xac/0x188
[ 0.060827] cpu_stopper_thread+0xe4/0x1a0
[ 0.060829] smpboot_thread_fn+0x1a8/0x1d8
[ 0.060830] kthread+0x114/0x118
[ 0.060832] ret_from_fork+0x10/0x18
[ 0.060833] ---[ end trace 82b1638f0eea221d ]---
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References
