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Date
July 15, 2025, 11:09 a.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   26.405215] WARNING: CPU: 0 PID: 417 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.407500] Modules linked in:
[   26.407982] CPU: 0 UID: 0 PID: 417 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   26.408812] Tainted: [D]=DIE, [N]=TEST
[   26.408991] Hardware name: linux,dummy-virt (DT)
[   26.409189] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   26.409470] pc : intlog2+0xb8/0x118
[   26.409655] lr : intlog2_test+0x88/0x180
[   26.409839] sp : ffff8000820c7cd0
[   26.409996] x29: ffff8000820c7cf0 x28: dfff800000000000 x27: 1ffe000018f5f4a5
[   26.410757] x26: fff00000c7a471a0 x25: ffff8000800878a8 x24: 0000000000000000
[   26.411648] x23: dfff800000000000 x22: fff00000c7afaf18 x21: ffff9c17a7d5e790
[   26.412460] x20: ffff9c17a61d6740 x19: ffff800080087b08 x18: ffff800080097920
[   26.413380] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   26.414451] x14: 1ffff382f5262280 x13: 0000000000000000 x12: 0000000000000000
[   26.415284] x11: ffff7382f5262281 x10: 0000000000000017 x9 : 0000000000000007
[   26.416089] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   26.416959] x5 : 00000000f6984437 x4 : 0000000000000001 x3 : ffff9c17a377d200
[   26.417837] x2 : 0000000000000000 x1 : 00000000003a6ce0 x0 : 0000000000000000
[   26.418642] Call trace:
[   26.418965]  intlog2+0xb8/0x118 (P)
[   26.419416]  intlog2_test+0x88/0x180
[   26.419838]  kunit_try_run_case+0x118/0x31c
[   26.420112]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.420526]  kthread+0x3f4/0x51c
[   26.420998]  ret_from_fork+0x10/0x20
[   26.421601] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   25.961502] WARNING: CPU: 0 PID: 415 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   25.965131] Modules linked in:
[   25.965765] CPU: 0 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   25.967007] Tainted: [D]=DIE, [N]=TEST
[   25.967591] Hardware name: linux,dummy-virt (DT)
[   25.968386] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   25.969057] pc : intlog2+0xb8/0x118
[   25.969267] lr : intlog2_test+0x88/0x180
[   25.969459] sp : ffff800082127cd0
[   25.969622] x29: ffff800082127cf0 x28: dfff800000000000 x27: 1ffe000018f44005
[   25.969999] x26: fff00000c79d0e20 x25: ffff8000800878a8 x24: 0000000000000000
[   25.970375] x23: dfff800000000000 x22: fff00000c7a20a18 x21: ffffae6fb955e790
[   25.970739] x20: ffffae6fb79e5820 x19: ffff800080087b08 x18: ffff800080097920
[   25.971118] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   25.971902] x14: 1ffff5cdf7562080 x13: 0000000000000000 x12: 0000000000000000
[   25.972905] x11: ffff75cdf7562081 x10: 0000000000000017 x9 : 0000000000000007
[   25.973753] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   25.974801] x5 : fff00000da9d9220 x4 : 0000000000000000 x3 : ffffae6fb4f83910
[   25.975836] x2 : 0000000000000000 x1 : 0000000000207dfb x0 : 0000000000000000
[   25.976774] Call trace:
[   25.977205]  intlog2+0xb8/0x118 (P)
[   25.977731]  intlog2_test+0x88/0x180
[   25.978265]  kunit_try_run_case+0x118/0x31c
[   25.978827]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   25.979521]  kthread+0x3f4/0x51c
[   25.980143]  ret_from_fork+0x10/0x20
[   25.980420] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   97.608012] WARNING: CPU: 0 PID: 639 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[   97.611321] Modules linked in:
[   97.611917] CPU: 0 UID: 0 PID: 639 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT 
[   97.612947] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[   97.613750] Hardware name: linux,dummy-virt (DT)
[   97.614447] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   97.615009] pc : intlog2+0xd8/0xf8
[   97.615437] lr : intlog2_test+0xe4/0x200
[   97.615629] sp : ffff800081fd7c10
[   97.615784] x29: ffff800081fd7c90 x28: 0000000000000000 x27: 0000000000000000
[   97.616130] x26: 1ffe000018ca76c1 x25: 0000000000000000 x24: ffff800081fd7ce0
[   97.616542] x23: ffff800081fd7d00 x22: 0000000000000000 x21: 1ffff000103faf82
[   97.617006] x20: ffffa65dac889c80 x19: ffff800080087990 x18: 00000000b34125e9
[   97.617765] x17: 00000000c44c6f7e x16: fff00000c097543c x15: 0000000024c875e3
[   97.618820] x14: 00000000f1f1f1f1 x13: 1ffe00001b48e9cd x12: ffff74cbb60e3379
[   97.619589] x11: 1ffff4cbb60e3378 x10: ffff74cbb60e3378 x9 : ffffa65da9e3605c
[   97.620348] x8 : ffffa65db0719bc3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   97.621129] x5 : ffff7000103faf82 x4 : 1ffff00010010f3a x3 : 1ffff4cbb5911390
[   97.622002] x2 : 1ffff4cbb5911390 x1 : 0000000000000003 x0 : 0000000000000000
[   97.622775] Call trace:
[   97.623062]  intlog2+0xd8/0xf8 (P)
[   97.623446]  kunit_try_run_case+0x170/0x3f0
[   97.623884]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   97.624426]  kthread+0x328/0x630
[   97.624797]  ret_from_fork+0x10/0x20
[   97.625305] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   28.962940] WARNING: CPU: 0 PID: 415 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   28.964095] Modules linked in:
[   28.964312] CPU: 0 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   28.964710] Tainted: [D]=DIE, [N]=TEST
[   28.965526] Hardware name: linux,dummy-virt (DT)
[   28.966029] pstate: 11400009 (nzcV daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[   28.966441] pc : intlog2+0xd0/0xe8
[   28.966825] lr : intlog2_test+0xdc/0x1f0
[   28.967250] sp : ffff800080fc7c10
[   28.967401] x29: ffff800080fc7c90 x28: 0000000000000000 x27: 0000000000000000
[   28.967735] x26: 1ffe000018f2ec81 x25: fff00000c798ca00 x24: 0000000000000004
[   28.968101] x23: fff00000c798ca00 x22: 0000000000000000 x21: 1ffff000101f8f82
[   28.968889] x20: ffffa68d11ccfd40 x19: ffff8000800879a0 x18: 1ffff00010012ece
[   28.969756] x17: fff00000c0369288 x16: fff00000c089763c x15: 0000000000007eb0
[   28.970486] x14: 1ffe00001b521cd5 x13: 1ffe000018f31942 x12: ffff74d1a2a43d39
[   28.971229] x11: 1ffff4d1a2a43d38 x10: ffff74d1a2a43d38 x9 : dfff800000000000
[   28.971957] x8 : ffffa68d1521e9c3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   28.972712] x5 : ffff7000101f8f82 x4 : 1ffff00010010f3c x3 : 1ffff4d1a2399fa8
[   28.973528] x2 : 1ffff4d1a2399fa8 x1 : 0000000000000003 x0 : 0000000000000000
[   28.974121] Call trace:
[   28.974261]  intlog2+0xd0/0xe8 (P)
[   28.974444]  kunit_try_run_case+0x144/0x3bc
[   28.974639]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   28.974860]  kthread+0x37c/0x67c
[   28.975024]  ret_from_fork+0x10/0x20
[   28.975538] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.144960] WARNING: CPU: 1 PID: 416 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   31.148404] Modules linked in:
[   31.148986] CPU: 1 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   31.150154] Tainted: [D]=DIE, [N]=TEST
[   31.150703] Hardware name: linux,dummy-virt (DT)
[   31.151374] pstate: 11400009 (nzcV daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[   31.152156] pc : intlog2+0xd4/0xec
[   31.152369] lr : intlog2_test+0xdc/0x1e0
[   31.152566] sp : ffff800080ee7bf0
[   31.152730] x29: ffff800080ee7bf0 x28: 0000000000000000 x27: 0000000000000000
[   31.153112] x26: 0000000000000000 x25: fff00000c7afca00 x24: fff00000c7afca00
[   31.153488] x23: 0000000000000000 x22: ffff915d0cfe8778 x21: ffff915d0b93fba0
[   31.153867] x20: 1ffff000101dcf86 x19: ffff800080087a00 x18: 00000000000010d8
[   31.154230] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   31.155273] x14: 00000000000010f8 x13: ffff722ba21bd129 x12: 1ffff22ba21bd128
[   31.156077] x11: 1ffff22ba21bd128 x10: ffff722ba21bd128 x9 : dfff800000000000
[   31.157019] x8 : 0000000000000001 x7 : ffff722ba21bd129 x6 : ffff915d10de8943
[   31.157642] x5 : 0000000041b58ab3 x4 : ffff7000101dcf86 x3 : 1ffff22ba1727f74
[   31.158288] x2 : 1ffff22ba1727f74 x1 : 0000000000000003 x0 : 0000000000000000
[   31.158935] Call trace:
[   31.159443]  intlog2+0xd4/0xec (P)
[   31.159731]  kunit_try_run_case+0x144/0x3bc
[   31.160320]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   31.160730]  kthread+0x3f0/0x744
[   31.161166]  ret_from_fork+0x10/0x20
[   31.161680] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  109.658153] WARNING: CPU: 1 PID: 655 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  109.658815] Modules linked in:
[  109.659176] CPU: 1 UID: 0 PID: 655 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  109.660246] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  109.660865] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  109.661154] RIP: 0010:intlog2+0xdf/0x110
[  109.661306] Code: e9 aa 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
[  109.663088] RSP: 0000:ffff88810adc7cb0 EFLAGS: 00010246
[  109.663277] RAX: 0000000000000000 RBX: ffff88810039fae8 RCX: 1ffff110215b8fb4
[  109.663873] RDX: 1ffffffff55d2e18 RSI: 1ffff110215b8fb3 RDI: 0000000000000000
[  109.664697] RBP: ffff88810adc7d60 R08: 0000000000000000 R09: ffffed1020138520
[  109.665308] R10: ffff8881009c2907 R11: 0000000000000000 R12: 1ffff110215b8f97
[  109.665583] R13: ffffffffaae970c0 R14: 0000000000000000 R15: ffff88810adc7d38
[  109.665812] FS:  0000000000000000(0000) GS:ffff8881ae172000(0000) knlGS:0000000000000000
[  109.666050] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  109.666228] CR2: dffffc0000000000 CR3: 000000012eebc000 CR4: 00000000000006f0
[  109.666743] DR0: ffffffffad052444 DR1: ffffffffad052449 DR2: ffffffffad05244a
[  109.667577] DR3: ffffffffad05244b DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  109.668172] Call Trace:
[  109.668464]  <TASK>
[  109.668698]  ? intlog2_test+0xf2/0x220
[  109.669100]  ? __pfx_intlog2_test+0x10/0x10
[  109.669544]  ? __schedule+0x10cc/0x2b60
[  109.669994]  ? __pfx_read_tsc+0x10/0x10
[  109.670404]  ? ktime_get_ts64+0x86/0x230
[  109.670910]  kunit_try_run_case+0x1a5/0x480
[  109.671482]  ? __pfx_kunit_try_run_case+0x10/0x10
[  109.671921]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  109.672218]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  109.672437]  ? __kthread_parkme+0x82/0x180
[  109.672638]  ? preempt_count_sub+0x50/0x80
[  109.673016]  ? __pfx_kunit_try_run_case+0x10/0x10
[  109.673490]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  109.673978]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  109.674285]  kthread+0x337/0x6f0
[  109.674465]  ? trace_preempt_on+0x20/0xc0
[  109.674619]  ? __pfx_kthread+0x10/0x10
[  109.674756]  ? _raw_spin_unlock_irq+0x47/0x80
[  109.674921]  ? calculate_sigpending+0x7b/0xa0
[  109.675076]  ? __pfx_kthread+0x10/0x10
[  109.675213]  ret_from_fork+0x116/0x1d0
[  109.675387]  ? __pfx_kthread+0x10/0x10
[  109.675564]  ret_from_fork_asm+0x1a/0x30
[  109.675718]  </TASK>
[  109.675854] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details