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Date
July 23, 2025, 2:10 a.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   26.046431] WARNING: CPU: 0 PID: 415 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.047252] Modules linked in:
[   26.047536] CPU: 0 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc7 #1 PREEMPT 
[   26.047982] Tainted: [D]=DIE, [N]=TEST
[   26.048210] Hardware name: linux,dummy-virt (DT)
[   26.048480] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   26.048828] pc : intlog2+0xb8/0x118
[   26.049025] lr : intlog2_test+0x88/0x180
[   26.049340] sp : ffff800081ff7cd0
[   26.049514] x29: ffff800081ff7cf0 x28: dfff800000000000 x27: 1ffe000018f664a5
[   26.050067] x26: fff00000c3c3e1a0 x25: ffff8000800878a8 x24: 0000000000000000
[   26.050519] x23: dfff800000000000 x22: fff00000c7b32f18 x21: ffff99eb17f5e790
[   26.050968] x20: ffff99eb163d6740 x19: ffff800080087b08 x18: 0000000000000002
[   26.051405] x17: 0000000000000075 x16: 0000000000000000 x15: 0000000000000001
[   26.051846] x14: 1ffff33d632a2280 x13: 0000000000000000 x12: 0000000000000000
[   26.052932] x11: ffff733d632a2281 x10: 0000000000000017 x9 : 0000000000000007
[   26.053405] x8 : 0000000000000000 x7 : 0000000043e8fa6f x6 : 00000000268d65ca
[   26.053835] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff99eb1397cf84
[   26.054286] x2 : 0000000000000000 x1 : 00000000002d8b40 x0 : 0000000000000000
[   26.054722] Call trace:
[   26.054900]  intlog2+0xb8/0x118 (P)
[   26.055118]  intlog2_test+0x88/0x180
[   26.055366]  kunit_try_run_case+0x118/0x318
[   26.055603]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.056148]  kthread+0x3f4/0x51c
[   26.056390]  ret_from_fork+0x10/0x20
[   26.056692] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   25.563628] WARNING: CPU: 1 PID: 415 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   25.567054] Modules linked in:
[   25.567662] CPU: 1 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc7 #1 PREEMPT 
[   25.568760] Tainted: [D]=DIE, [N]=TEST
[   25.569199] Hardware name: linux,dummy-virt (DT)
[   25.569462] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   25.569813] pc : intlog2+0xb8/0x118
[   25.570044] lr : intlog2_test+0x88/0x180
[   25.570805] sp : ffff800081fb7cd0
[   25.571186] x29: ffff800081fb7cf0 x28: dfff800000000000 x27: 1ffe000018f44255
[   25.571788] x26: fff00000c79ee620 x25: ffff8000800878a8 x24: 0000000000000000
[   25.572393] x23: dfff800000000000 x22: fff00000c7a21c98 x21: ffffa3d38d55e790
[   25.572973] x20: ffffa3d38b9e5820 x19: ffff800080087b08 x18: ffff800080097920
[   25.573450] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   25.574125] x14: 1ffff47a71d62080 x13: 0000000000000000 x12: 0000000000000000
[   25.574757] x11: ffff747a71d62081 x10: 0000000000000017 x9 : 0000000000000007
[   25.575276] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   25.575754] x5 : 000000004ddc94d4 x4 : 0000000000000000 x3 : ffffa3d388f83738
[   25.576201] x2 : 0000000000000000 x1 : 0000000000270075 x0 : 0000000000000000
[   25.576676] Call trace:
[   25.576849]  intlog2+0xb8/0x118 (P)
[   25.577080]  intlog2_test+0x88/0x180
[   25.577351]  kunit_try_run_case+0x118/0x31c
[   25.577588]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   25.577929]  kthread+0x3f4/0x51c
[   25.578154]  ret_from_fork+0x10/0x20
[   25.578472] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   28.830956] WARNING: CPU: 0 PID: 415 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   28.832184] Modules linked in:
[   28.832407] CPU: 0 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc7 #1 PREEMPT 
[   28.833015] Tainted: [D]=DIE, [N]=TEST
[   28.833494] Hardware name: linux,dummy-virt (DT)
[   28.833740] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   28.834035] pc : intlog2+0xd0/0xe8
[   28.834241] lr : intlog2_test+0xdc/0x1f0
[   28.834638] sp : ffff800082027c10
[   28.834962] x29: ffff800082027c90 x28: 0000000000000000 x27: 0000000000000000
[   28.835705] x26: 1ffe000018f400c1 x25: fff00000c7a50000 x24: 0000000000000004
[   28.836429] x23: fff00000c7a50000 x22: 0000000000000000 x21: 1ffff00010404f82
[   28.837135] x20: ffff9b45f86cfd40 x19: ffff8000800879a0 x18: 1ffff00010012ece
[   28.838089] x17: fff00000c0369288 x16: fff00000c089763c x15: 0000000000007eb0
[   28.838558] x14: 1ffe00001b521ed5 x13: 1ffe000018f4a002 x12: ffff7368bf783d39
[   28.838886] x11: 1ffff368bf783d38 x10: ffff7368bf783d38 x9 : dfff800000000000
[   28.839212] x8 : ffff9b45fbc1e9c3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   28.839556] x5 : ffff700010404f82 x4 : 1ffff00010010f3c x3 : 1ffff368bf0d9fa8
[   28.839980] x2 : 1ffff368bf0d9fa8 x1 : 0000000000000003 x0 : 0000000000000000
[   28.840358] Call trace:
[   28.840503]  intlog2+0xd0/0xe8 (P)
[   28.840738]  kunit_try_run_case+0x144/0x3bc
[   28.840989]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   28.841289]  kthread+0x37c/0x67c
[   28.841471]  ret_from_fork+0x10/0x20
[   28.841870] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.717748] WARNING: CPU: 0 PID: 416 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   31.721019] Modules linked in:
[   31.721424] CPU: 0 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc7 #1 PREEMPT 
[   31.722430] Tainted: [D]=DIE, [N]=TEST
[   31.722901] Hardware name: linux,dummy-virt (DT)
[   31.723387] pstate: 11400009 (nzcV daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[   31.724185] pc : intlog2+0xd4/0xec
[   31.724601] lr : intlog2_test+0xdc/0x1e0
[   31.725032] sp : ffff800080c67bf0
[   31.725452] x29: ffff800080c67bf0 x28: 0000000000000000 x27: 0000000000000000
[   31.726214] x26: 0000000000000000 x25: fff00000c7974a00 x24: fff00000c7974a00
[   31.727080] x23: 0000000000000000 x22: ffffac3a39be8838 x21: ffffac3a3853fba0
[   31.727935] x20: 1ffff0001018cf86 x19: ffff800080087a00 x18: 00000000000010d8
[   31.728747] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   31.729573] x14: 00000000000010f8 x13: ffff758747b3d129 x12: 1ffff58747b3d128
[   31.730320] x11: 1ffff58747b3d128 x10: ffff758747b3d128 x9 : dfff800000000000
[   31.731225] x8 : 0000000000000001 x7 : ffff758747b3d129 x6 : ffffac3a3d9e8943
[   31.732009] x5 : 0000000041b58ab3 x4 : ffff70001018cf86 x3 : 1ffff587470a7f74
[   31.732748] x2 : 1ffff587470a7f74 x1 : 0000000000000003 x0 : 0000000000000000
[   31.733488] Call trace:
[   31.733776]  intlog2+0xd4/0xec (P)
[   31.734008]  kunit_try_run_case+0x144/0x3bc
[   31.734223]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   31.734473]  kthread+0x3f0/0x744
[   31.734758]  ret_from_fork+0x10/0x20
[   31.735358] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   97.627990] WARNING: CPU: 0 PID: 638 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[   97.631993] Modules linked in:
[   97.632559] CPU: 0 UID: 0 PID: 638 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc7 #1 PREEMPT 
[   97.633559] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[   97.634127] Hardware name: linux,dummy-virt (DT)
[   97.634653] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   97.635101] pc : intlog2+0xd8/0xf8
[   97.635431] lr : intlog2_test+0xe4/0x200
[   97.635686] sp : ffff800082117c10
[   97.636078] x29: ffff800082117c90 x28: 0000000000000000 x27: 0000000000000000
[   97.636897] x26: 1ffe00001909dd61 x25: 0000000000000000 x24: ffff800082117ce0
[   97.637475] x23: ffff800082117d00 x22: 0000000000000000 x21: 1ffff00010422f82
[   97.638211] x20: ffffab7db5889d80 x19: ffff800080087990 x18: 0000000044369e2e
[   97.639170] x17: fff0548322cb6000 x16: fff00000c097583c x15: 0000000008dea0a8
[   97.639546] x14: 00000000f1f1f1f1 x13: 1ffe00001b48e9cd x12: ffff756fb72e3379
[   97.639904] x11: 1ffff56fb72e3378 x10: ffff756fb72e3378 x9 : ffffab7db2e37bdc
[   97.640247] x8 : ffffab7db9719bc3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   97.640587] x5 : ffff700010422f82 x4 : 1ffff00010010f3a x3 : 1ffff56fb6b113b0
[   97.641057] x2 : 1ffff56fb6b113b0 x1 : 0000000000000003 x0 : 0000000000000000
[   97.641760] Call trace:
[   97.642037]  intlog2+0xd8/0xf8 (P)
[   97.642411]  kunit_try_run_case+0x170/0x3f0
[   97.643130]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   97.643391]  kthread+0x328/0x630
[   97.643572]  ret_from_fork+0x10/0x20
[   97.643778] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  113.590255] WARNING: CPU: 1 PID: 655 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  113.590925] Modules linked in:
[  113.591418] CPU: 1 UID: 0 PID: 655 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc7 #1 PREEMPT(voluntary) 
[  113.591895] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  113.592129] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  113.592840] RIP: 0010:intlog2+0xdf/0x110
[  113.593299] Code: 89 91 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 5f c7 55 ff 8b 45 e4 eb
[  113.594330] RSP: 0000:ffff888103fbfcb0 EFLAGS: 00010246
[  113.594742] RAX: 0000000000000000 RBX: ffff88810039fae8 RCX: 1ffff110207f7fb4
[  113.595167] RDX: 1ffffffff2312e40 RSI: 1ffff110207f7fb3 RDI: 0000000000000000
[  113.595688] RBP: ffff888103fbfd60 R08: 0000000000000000 R09: ffffed102111a460
[  113.595994] R10: ffff8881088d2307 R11: 0000000000000000 R12: 1ffff110207f7f97
[  113.596738] R13: ffffffff91897200 R14: 0000000000000000 R15: ffff888103fbfd38
[  113.597134] FS:  0000000000000000(0000) GS:ffff8881c7772000(0000) knlGS:0000000000000000
[  113.597706] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  113.598088] CR2: ffff888153f26fe0 CR3: 00000001596bc000 CR4: 00000000000006f0
[  113.598712] DR0: ffffffff93a52440 DR1: ffffffff93a52441 DR2: ffffffff93a52443
[  113.599139] DR3: ffffffff93a52445 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  113.599666] Call Trace:
[  113.599944]  <TASK>
[  113.600206]  ? intlog2_test+0xf2/0x220
[  113.600671]  ? __pfx_intlog2_test+0x10/0x10
[  113.601128]  ? __schedule+0x10c6/0x2b60
[  113.601685]  ? __pfx_read_tsc+0x10/0x10
[  113.601892]  ? ktime_get_ts64+0x86/0x230
[  113.602226]  kunit_try_run_case+0x1a5/0x480
[  113.602674]  ? __pfx_kunit_try_run_case+0x10/0x10
[  113.603046]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  113.603518]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  113.603905]  ? __kthread_parkme+0x82/0x180
[  113.604452]  ? preempt_count_sub+0x50/0x80
[  113.604698]  ? __pfx_kunit_try_run_case+0x10/0x10
[  113.605014]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  113.605460]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  113.605832]  kthread+0x337/0x6f0
[  113.606137]  ? trace_preempt_on+0x20/0xc0
[  113.606511]  ? __pfx_kthread+0x10/0x10
[  113.606844]  ? _raw_spin_unlock_irq+0x47/0x80
[  113.607062]  ? calculate_sigpending+0x7b/0xa0
[  113.607571]  ? __pfx_kthread+0x10/0x10
[  113.607764]  ret_from_fork+0x116/0x1d0
[  113.608117]  ? __pfx_kthread+0x10/0x10
[  113.608760]  ret_from_fork_asm+0x1a/0x30
[  113.609015]  </TASK>
[  113.609374] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details