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Date
July 16, 2025, 3:10 p.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   28.752489] WARNING: CPU: 1 PID: 416 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   28.756806] Modules linked in:
[   28.757573] CPU: 1 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   28.758663] Tainted: [D]=DIE, [N]=TEST
[   28.759316] Hardware name: linux,dummy-virt (DT)
[   28.760148] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   28.761167] pc : intlog2+0xd0/0xe8
[   28.761877] lr : intlog2_test+0xdc/0x1f0
[   28.762722] sp : ffff800082077c10
[   28.763178] x29: ffff800082077c90 x28: 0000000000000000 x27: 0000000000000000
[   28.764237] x26: 1ffe000018f48a61 x25: fff00000c7a2ca00 x24: 0000000000000004
[   28.765310] x23: fff00000c7a2ca00 x22: 0000000000000000 x21: 1ffff0001040ef82
[   28.765650] x20: ffff9bff548cfd40 x19: ffff8000800879a0 x18: 000000000226bbac
[   28.765970] x17: 000000005b781cda x16: fff00000c089773c x15: 0000000000007eb0
[   28.766868] x14: 1ffe00001b51ecd5 x13: 1ffe000018f45942 x12: ffff737feafc3d39
[   28.768367] x11: 1ffff37feafc3d38 x10: ffff737feafc3d38 x9 : dfff800000000000
[   28.768895] x8 : ffff9bff57e1e9c3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   28.769315] x5 : ffff70001040ef82 x4 : 1ffff00010010f3c x3 : 1ffff37fea919fa8
[   28.769713] x2 : 1ffff37fea919fa8 x1 : 0000000000000003 x0 : 0000000000000000
[   28.770108] Call trace:
[   28.770596]  intlog2+0xd0/0xe8 (P)
[   28.770805]  kunit_try_run_case+0x144/0x3bc
[   28.771220]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   28.772429]  kthread+0x37c/0x67c
[   28.772638]  ret_from_fork+0x10/0x20
[   28.772889] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   26.265057] WARNING: CPU: 0 PID: 415 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.270019] Modules linked in:
[   26.270674] CPU: 0 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   26.271869] Tainted: [D]=DIE, [N]=TEST
[   26.272503] Hardware name: linux,dummy-virt (DT)
[   26.272786] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   26.273709] pc : intlog2+0xb8/0x118
[   26.273933] lr : intlog2_test+0x88/0x180
[   26.274628] sp : ffff8000820c7cd0
[   26.275168] x29: ffff8000820c7cf0 x28: dfff800000000000 x27: 1ffe000018f416f5
[   26.275985] x26: fff00000c7934420 x25: ffff8000800878a8 x24: 0000000000000000
[   26.276902] x23: dfff800000000000 x22: fff00000c7a0c198 x21: ffff9daa98f5e790
[   26.277311] x20: ffff9daa973d6740 x19: ffff800080087b08 x18: ffff800080097920
[   26.278279] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   26.279115] x14: 1ffff3b5534a2280 x13: 0000000000000000 x12: 0000000000000000
[   26.279985] x11: ffff73b5534a2281 x10: 0000000000000017 x9 : 0000000000000007
[   26.280726] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   26.281096] x5 : 00000000033937e2 x4 : 0000000000000000 x3 : ffff9daa9497d200
[   26.281446] x2 : 0000000000000000 x1 : 00000000004bd06d x0 : 0000000000000000
[   26.281806] Call trace:
[   26.281946]  intlog2+0xb8/0x118 (P)
[   26.282151]  intlog2_test+0x88/0x180
[   26.282332]  kunit_try_run_case+0x118/0x31c
[   26.282528]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.282755]  kthread+0x3f4/0x51c
[   26.282926]  ret_from_fork+0x10/0x20
[   26.283485] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   26.408486] WARNING: CPU: 0 PID: 416 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.412232] Modules linked in:
[   26.413047] CPU: 0 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   26.413883] Tainted: [D]=DIE, [N]=TEST
[   26.414274] Hardware name: linux,dummy-virt (DT)
[   26.414669] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   26.415015] pc : intlog2+0xb8/0x118
[   26.415241] lr : intlog2_test+0x88/0x180
[   26.415482] sp : ffff800082057cd0
[   26.415685] x29: ffff800082057cf0 x28: dfff800000000000 x27: 1ffe000018f83255
[   26.416449] x26: fff00000c7b19520 x25: ffff8000800878a8 x24: 0000000000000000
[   26.417141] x23: dfff800000000000 x22: fff00000c7c19c98 x21: ffffa2a76535e790
[   26.417830] x20: ffffa2a7637e5820 x19: ffff800080087b08 x18: ffff800080097920
[   26.418661] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   26.419378] x14: 1ffff454ecd22080 x13: 0000000000000000 x12: 0000000000000000
[   26.420100] x11: ffff7454ecd22081 x10: 0000000000000017 x9 : 0000000000000007
[   26.420819] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   26.421492] x5 : 000000003d13052d x4 : 0000000000000000 x3 : ffffa2a760d83910
[   26.422558] x2 : 0000000000000000 x1 : 000000000012911f x0 : 0000000000000000
[   26.423125] Call trace:
[   26.423517]  intlog2+0xb8/0x118 (P)
[   26.423953]  intlog2_test+0x88/0x180
[   26.424315]  kunit_try_run_case+0x118/0x31c
[   26.424768]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.425236]  kthread+0x3f4/0x51c
[   26.425647]  ret_from_fork+0x10/0x20
[   26.426195] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   96.622503] WARNING: CPU: 0 PID: 638 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[   96.623660] Modules linked in:
[   96.623953] CPU: 0 UID: 0 PID: 638 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT 
[   96.624426] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[   96.624704] Hardware name: linux,dummy-virt (DT)
[   96.624999] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   96.625291] pc : intlog2+0xd8/0xf8
[   96.625531] lr : intlog2_test+0xe4/0x200
[   96.625896] sp : ffff800082397c10
[   96.626104] x29: ffff800082397c90 x28: 0000000000000000 x27: 0000000000000000
[   96.626620] x26: 1ffe000019034f81 x25: 0000000000000000 x24: ffff800082397ce0
[   96.626980] x23: ffff800082397d00 x22: 0000000000000000 x21: 1ffff00010472f82
[   96.627343] x20: ffff988710a89c80 x19: ffff800080087990 x18: 00000000b45e766f
[   96.627799] x17: 000000009e81d5a5 x16: fff00000c097583c x15: fff00000ff616b08
[   96.628252] x14: 0000000000018fff x13: 1ffe00001b48e9cd x12: ffff7310e2923379
[   96.628696] x11: 1ffff310e2923378 x10: ffff7310e2923378 x9 : ffff98870e03605c
[   96.629179] x8 : ffff988714919bc3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   96.629582] x5 : ffff700010472f82 x4 : 1ffff00010010f3a x3 : 1ffff310e2151390
[   96.629979] x2 : 1ffff310e2151390 x1 : 0000000000000003 x0 : 0000000000000000
[   96.630365] Call trace:
[   96.630540]  intlog2+0xd8/0xf8 (P)
[   96.630790]  kunit_try_run_case+0x170/0x3f0
[   96.631091]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   96.631443]  kthread+0x328/0x630
[   96.631762]  ret_from_fork+0x10/0x20
[   96.632049] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.170295] WARNING: CPU: 0 PID: 416 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   31.173473] Modules linked in:
[   31.174060] CPU: 0 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   31.175049] Tainted: [D]=DIE, [N]=TEST
[   31.175244] Hardware name: linux,dummy-virt (DT)
[   31.175452] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   31.175742] pc : intlog2+0xd4/0xec
[   31.175947] lr : intlog2_test+0xdc/0x1e0
[   31.176141] sp : ffff800080f77bf0
[   31.176307] x29: ffff800080f77bf0 x28: 0000000000000000 x27: 0000000000000000
[   31.176685] x26: 0000000000000000 x25: fff00000c79eca00 x24: fff00000c79eca00
[   31.178046] x23: 0000000000000000 x22: ffff953ec03e8778 x21: ffff953ebed3fba0
[   31.179077] x20: 1ffff000101eef86 x19: ffff800080087a00 x18: 00000000000010d8
[   31.180505] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   31.181733] x14: 00000000000010f8 x13: ffff72a7d883d129 x12: 1ffff2a7d883d128
[   31.182410] x11: 1ffff2a7d883d128 x10: ffff72a7d883d128 x9 : dfff800000000000
[   31.183105] x8 : 0000000000000001 x7 : ffff72a7d883d129 x6 : ffff953ec41e8943
[   31.183560] x5 : 0000000041b58ab3 x4 : ffff7000101eef86 x3 : 1ffff2a7d7da7f74
[   31.184003] x2 : 1ffff2a7d7da7f74 x1 : 0000000000000003 x0 : 0000000000000000
[   31.184441] Call trace:
[   31.184631]  intlog2+0xd4/0xec (P)
[   31.184891]  kunit_try_run_case+0x144/0x3bc
[   31.185184]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   31.185481]  kthread+0x3f0/0x744
[   31.185727]  ret_from_fork+0x10/0x20
[   31.186051] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  108.589457] WARNING: CPU: 0 PID: 655 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  108.589794] Modules linked in:
[  108.590110] CPU: 0 UID: 0 PID: 655 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  108.590546] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  108.590784] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  108.591230] RIP: 0010:intlog2+0xdf/0x110
[  108.591488] Code: 69 98 c1 e0 18 48 83 c4 08 89 d1 c1 e2 08 29 cb 01 d0 0f b7 db 41 0f af dc c1 eb 0f 01 d8 5b 41 5c 41 5d 5d c3 cc cc cc cc 90 <0f> 0b 90 31 c0 c3 cc cc cc cc 89 45 e4 e8 6f d8 55 ff 8b 45 e4 eb
[  108.592273] RSP: 0000:ffff8881020d7cb0 EFLAGS: 00010246
[  108.592528] RAX: 0000000000000000 RBX: ffff88810039fae8 RCX: 1ffff1102041afb4
[  108.592825] RDX: 1ffffffff30d2e18 RSI: 1ffff1102041afb3 RDI: 0000000000000000
[  108.593177] RBP: ffff8881020d7d60 R08: 0000000000000000 R09: ffffed10201801c0
[  108.593467] R10: ffff888100c00e07 R11: 0000000000000000 R12: 1ffff1102041af97
[  108.593740] R13: ffffffff986970c0 R14: 0000000000000000 R15: ffff8881020d7d38
[  108.594177] FS:  0000000000000000(0000) GS:ffff8881c0872000(0000) knlGS:0000000000000000
[  108.594508] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  108.594917] CR2: ffff88815a8aafe0 CR3: 000000012a6bc000 CR4: 00000000000006f0
[  108.595240] DR0: ffffffff9a852440 DR1: ffffffff9a852441 DR2: ffffffff9a852442
[  108.595577] DR3: ffffffff9a852443 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  108.595901] Call Trace:
[  108.596079]  <TASK>
[  108.596298]  ? intlog2_test+0xf2/0x220
[  108.596484]  ? __pfx_intlog2_test+0x10/0x10
[  108.596707]  ? __schedule+0x10cc/0x2b60
[  108.596894]  ? __pfx_read_tsc+0x10/0x10
[  108.597211]  ? ktime_get_ts64+0x86/0x230
[  108.597410]  kunit_try_run_case+0x1a5/0x480
[  108.597610]  ? __pfx_kunit_try_run_case+0x10/0x10
[  108.597816]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  108.598311]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  108.598521]  ? __kthread_parkme+0x82/0x180
[  108.598700]  ? preempt_count_sub+0x50/0x80
[  108.598852]  ? __pfx_kunit_try_run_case+0x10/0x10
[  108.599204]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  108.599475]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  108.599789]  kthread+0x337/0x6f0
[  108.600043]  ? trace_preempt_on+0x20/0xc0
[  108.600256]  ? __pfx_kthread+0x10/0x10
[  108.600435]  ? _raw_spin_unlock_irq+0x47/0x80
[  108.600652]  ? calculate_sigpending+0x7b/0xa0
[  108.600852]  ? __pfx_kthread+0x10/0x10
[  108.601145]  ret_from_fork+0x116/0x1d0
[  108.601318]  ? __pfx_kthread+0x10/0x10
[  108.601491]  ret_from_fork_asm+0x1a/0x30
[  108.601731]  </TASK>
[  108.601862] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details