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Date
July 20, 2025, 11:12 a.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   27.127853] WARNING: CPU: 0 PID: 415 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   27.130184] Modules linked in:
[   27.130461] CPU: 0 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   27.130842] Tainted: [D]=DIE, [N]=TEST
[   27.131040] Hardware name: linux,dummy-virt (DT)
[   27.131267] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   27.131972] pc : intlog2+0xb8/0x118
[   27.132469] lr : intlog2_test+0x88/0x180
[   27.132968] sp : ffff800080f37cd0
[   27.133340] x29: ffff800080f37cf0 x28: dfff800000000000 x27: 1ffe000018f636f5
[   27.134266] x26: fff00000c79e76a0 x25: ffff8000800878a8 x24: 0000000000000000
[   27.135208] x23: dfff800000000000 x22: fff00000c7b1c198 x21: ffffb15198f5e790
[   27.135654] x20: ffffb151973d6740 x19: ffff800080087b08 x18: ffff800080097920
[   27.136035] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   27.136431] x14: 1ffff62a334a2280 x13: 0000000000000000 x12: 0000000000000000
[   27.136805] x11: ffff762a334a2281 x10: 0000000000000017 x9 : 0000000000000007
[   27.137202] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   27.138020] x5 : 00000000dafa736e x4 : 0000000000000001 x3 : ffffb1519497d904
[   27.139077] x2 : 0000000000000000 x1 : 000000000041645a x0 : 0000000000000000
[   27.139871] Call trace:
[   27.140164]  intlog2+0xb8/0x118 (P)
[   27.140413]  intlog2_test+0x88/0x180
[   27.140882]  kunit_try_run_case+0x118/0x31c
[   27.141396]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   27.141917]  kthread+0x3f4/0x51c
[   27.142100]  ret_from_fork+0x10/0x20
[   27.142369] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.359945] WARNING: CPU: 1 PID: 415 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   31.362588] Modules linked in:
[   31.363333] CPU: 1 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   31.364246] Tainted: [D]=DIE, [N]=TEST
[   31.364614] Hardware name: linux,dummy-virt (DT)
[   31.365108] pstate: 81400009 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[   31.365683] pc : intlog2+0xb8/0x118
[   31.365912] lr : intlog2_test+0x88/0x180
[   31.366235] sp : ffff800081fb7cd0
[   31.366465] x29: ffff800081fb7cf0 x28: dfff800000000000 x27: 1ffe000018f55945
[   31.367038] x26: fff00000c5738aa0 x25: ffff8000800878a8 x24: 0000000000000000
[   31.367704] x23: dfff800000000000 x22: fff00000c7aad418 x21: ffff983c0af5e790
[   31.368243] x20: ffff983c093e5820 x19: ffff800080087b08 x18: ffff800080097920
[   31.368773] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   31.369327] x14: 1ffff307818a2080 x13: 0000000000000000 x12: 0000000000000000
[   31.369858] x11: ffff7307818a2081 x10: 0000000000000017 x9 : 0000000000000007
[   31.370399] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   31.371092] x5 : fff00000da9f21a0 x4 : 0000000000000000 x3 : ffff983c0698380c
[   31.371734] x2 : 0000000000000000 x1 : 000000000004701f x0 : 0000000000000000
[   31.372285] Call trace:
[   31.372499]  intlog2+0xb8/0x118 (P)
[   31.372776]  intlog2_test+0x88/0x180
[   31.373084]  kunit_try_run_case+0x118/0x31c
[   31.373383]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   31.373736]  kthread+0x3f4/0x51c
[   31.374016]  ret_from_fork+0x10/0x20
[   31.374386] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   93.321230] WARNING: CPU: 1 PID: 638 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[   93.324710] Modules linked in:
[   93.325535] CPU: 1 UID: 0 PID: 638 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT 
[   93.327476] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[   93.328115] Hardware name: linux,dummy-virt (DT)
[   93.328650] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   93.329405] pc : intlog2+0xd8/0xf8
[   93.329873] lr : intlog2_test+0xe4/0x200
[   93.330360] sp : ffff800082337c10
[   93.330807] x29: ffff800082337c90 x28: 0000000000000000 x27: 0000000000000000
[   93.331780] x26: 1ffe00001972a9a1 x25: 0000000000000000 x24: ffff800082337ce0
[   93.332740] x23: ffff800082337d00 x22: 0000000000000000 x21: 1ffff00010466f82
[   93.333711] x20: ffff9f28a5c89d80 x19: ffff800080087990 x18: 00000000864ddc8d
[   93.334086] x17: 00000000e98d8a27 x16: fff00000c0975c3c x15: 0000000087ac4cb1
[   93.334451] x14: 00000000f1f1f1f1 x13: 1ffe00001b48a7cd x12: ffff73e515363379
[   93.334821] x11: 1ffff3e515363378 x10: ffff73e515363378 x9 : ffff9f28a3235bdc
[   93.335725] x8 : ffff9f28a9b19bc3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   93.336697] x5 : ffff700010466f82 x4 : 1ffff00010010f3a x3 : 1ffff3e514b913b0
[   93.337530] x2 : 1ffff3e514b913b0 x1 : 0000000000000003 x0 : 0000000000000000
[   93.338347] Call trace:
[   93.338673]  intlog2+0xd8/0xf8 (P)
[   93.339133]  kunit_try_run_case+0x170/0x3f0
[   93.339686]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   93.340299]  kthread+0x328/0x630
[   93.340716]  ret_from_fork+0x10/0x20
[   93.341179] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   28.563590] WARNING: CPU: 1 PID: 415 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   28.565342] Modules linked in:
[   28.566015] CPU: 1 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   28.567167] Tainted: [D]=DIE, [N]=TEST
[   28.567711] Hardware name: linux,dummy-virt (DT)
[   28.568225] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   28.568514] pc : intlog2+0xd0/0xe8
[   28.568688] lr : intlog2_test+0xdc/0x1f0
[   28.568866] sp : ffff800081f77c10
[   28.569013] x29: ffff800081f77c90 x28: 0000000000000000 x27: 0000000000000000
[   28.569346] x26: 1ffe000018ed6141 x25: fff00000c79a9280 x24: 0000000000000004
[   28.570532] x23: fff00000c79a9280 x22: 0000000000000000 x21: 1ffff000103eef82
[   28.571659] x20: ffff9e39b70cfd40 x19: ffff8000800879a0 x18: 000000003993fe20
[   28.572484] x17: 000000001046b0fd x16: fff00000c089773c x15: 0000000000007eb0
[   28.573365] x14: 1ffe00001b51ecd5 x13: 1ffe000018f35252 x12: ffff73c7374c3d39
[   28.574280] x11: 1ffff3c7374c3d38 x10: ffff73c7374c3d38 x9 : dfff800000000000
[   28.575201] x8 : ffff9e39ba61e9c3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   28.576141] x5 : ffff7000103eef82 x4 : 1ffff00010010f3c x3 : 1ffff3c736e19fa8
[   28.577043] x2 : 1ffff3c736e19fa8 x1 : 0000000000000003 x0 : 0000000000000000
[   28.577817] Call trace:
[   28.577966]  intlog2+0xd0/0xe8 (P)
[   28.578147]  kunit_try_run_case+0x144/0x3bc
[   28.578340]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   28.578915]  kthread+0x37c/0x67c
[   28.579330]  ret_from_fork+0x10/0x20
[   28.579798] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.714106] WARNING: CPU: 0 PID: 415 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   31.715015] Modules linked in:
[   31.715304] CPU: 0 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   31.715884] Tainted: [D]=DIE, [N]=TEST
[   31.716094] Hardware name: linux,dummy-virt (DT)
[   31.716402] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   31.716773] pc : intlog2+0xd4/0xec
[   31.717005] lr : intlog2_test+0xdc/0x1e0
[   31.717249] sp : ffff800081fa7bf0
[   31.717450] x29: ffff800081fa7bf0 x28: 0000000000000000 x27: 0000000000000000
[   31.717924] x26: 0000000000000000 x25: fff00000c7a13780 x24: fff00000c7a13780
[   31.718398] x23: 0000000000000000 x22: ffffa56bd41e87d8 x21: ffffa56bd2b3fba0
[   31.718864] x20: 1ffff000103f4f86 x19: ffff800080087a00 x18: 00000000000010d8
[   31.719290] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   31.719734] x14: 00000000000010f8 x13: ffff74ad7affd129 x12: 1ffff4ad7affd128
[   31.720171] x11: 1ffff4ad7affd128 x10: ffff74ad7affd128 x9 : dfff800000000000
[   31.720604] x8 : 0000000000000001 x7 : ffff74ad7affd129 x6 : ffffa56bd7fe8943
[   31.721014] x5 : 0000000041b58ab3 x4 : ffff7000103f4f86 x3 : 1ffff4ad7a567f74
[   31.721525] x2 : 1ffff4ad7a567f74 x1 : 0000000000000003 x0 : 0000000000000000
[   31.721980] Call trace:
[   31.722200]  intlog2+0xd4/0xec (P)
[   31.722548]  kunit_try_run_case+0x144/0x3bc
[   31.722848]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   31.723161]  kthread+0x3f0/0x744
[   31.723425]  ret_from_fork+0x10/0x20
[   31.723738] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  108.899028] WARNING: CPU: 1 PID: 656 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  108.899459] Modules linked in:
[  108.899819] CPU: 1 UID: 0 PID: 656 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  108.900310] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  108.900893] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  108.901954] RIP: 0010:intlog2+0xdf/0x110
[  108.902166] Code: e9 94 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 e9 d2 b9 86 02 90 <0f> 0b 90 31 c0 e9 c7 b9 86 02 89 45 e4 e8 5f c7 55 ff 8b 45 e4 eb
[  108.903536] RSP: 0000:ffff88810b54fcb0 EFLAGS: 00010246
[  108.904292] RAX: 0000000000000000 RBX: ffff88810039fae8 RCX: 1ffff110216a9fb4
[  108.904790] RDX: 1ffffffff29d2e40 RSI: 1ffff110216a9fb3 RDI: 0000000000000000
[  108.905433] RBP: ffff88810b54fd60 R08: 0000000000000000 R09: ffffed10201e3920
[  108.905887] R10: ffff888100f1c907 R11: 0000000000000000 R12: 1ffff110216a9f97
[  108.906464] R13: ffffffff94e97200 R14: 0000000000000000 R15: ffff88810b54fd38
[  108.907035] FS:  0000000000000000(0000) GS:ffff8881c4172000(0000) knlGS:0000000000000000
[  108.907284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  108.907890] CR2: ffff88815a90afe0 CR3: 0000000050abc000 CR4: 00000000000006f0
[  108.908672] DR0: ffffffff97052440 DR1: ffffffff97052441 DR2: ffffffff97052443
[  108.909324] DR3: ffffffff97052445 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  108.910246] Call Trace:
[  108.910550]  <TASK>
[  108.910670]  ? intlog2_test+0xf2/0x220
[  108.910830]  ? __pfx_intlog2_test+0x10/0x10
[  108.910989]  ? __schedule+0x10cc/0x2b60
[  108.911134]  ? __pfx_read_tsc+0x10/0x10
[  108.911274]  ? ktime_get_ts64+0x86/0x230
[  108.911762]  kunit_try_run_case+0x1a5/0x480
[  108.912182]  ? __pfx_kunit_try_run_case+0x10/0x10
[  108.912792]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  108.913285]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  108.913900]  ? __kthread_parkme+0x82/0x180
[  108.914425]  ? preempt_count_sub+0x50/0x80
[  108.914911]  ? __pfx_kunit_try_run_case+0x10/0x10
[  108.915411]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  108.916041]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  108.916834]  kthread+0x337/0x6f0
[  108.917285]  ? trace_preempt_on+0x20/0xc0
[  108.917908]  ? __pfx_kthread+0x10/0x10
[  108.918395]  ? _raw_spin_unlock_irq+0x47/0x80
[  108.918902]  ? calculate_sigpending+0x7b/0xa0
[  108.919070]  ? __pfx_kthread+0x10/0x10
[  108.919210]  ret_from_fork+0x116/0x1d0
[  108.919387]  ? __pfx_kthread+0x10/0x10
[  108.920135]  ret_from_fork_asm+0x1a/0x30
[  108.920753]  </TASK>
[  108.921148] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details