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Date
July 8, 2025, 11:09 p.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   30.300058] WARNING: CPU: 0 PID: 414 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   30.301081] Modules linked in:
[   30.301603] CPU: 0 UID: 0 PID: 414 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc5 #1 PREEMPT 
[   30.302161] Tainted: [D]=DIE, [N]=TEST
[   30.302432] Hardware name: linux,dummy-virt (DT)
[   30.302956] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   30.303631] pc : intlog2+0xb8/0x118
[   30.304124] lr : intlog2_test+0x88/0x180
[   30.304576] sp : ffff800082227cd0
[   30.304908] x29: ffff800082227cf0 x28: dfff800000000000 x27: 1ffe000018f5a255
[   30.305490] x26: fff00000c79d6120 x25: ffff8000800878a8 x24: 0000000000000000
[   30.306102] x23: dfff800000000000 x22: fff00000c7ad1c98 x21: ffff98ad3715e7d0
[   30.306895] x20: ffff98ad355d6840 x19: ffff800080087b08 x18: ffff800080097920
[   30.307913] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   30.308939] x14: 1ffff315a70e2280 x13: 0000000000000000 x12: 0000000000000000
[   30.309926] x11: ffff7315a70e2281 x10: 0000000000000017 x9 : 0000000000000007
[   30.310924] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   30.312403] x5 : 000000005c73a2b7 x4 : 0000000000000000 x3 : ffff98ad32b7d234
[   30.313136] x2 : 0000000000000000 x1 : 00000000000e9537 x0 : 0000000000000000
[   30.313845] Call trace:
[   30.314277]  intlog2+0xb8/0x118 (P)
[   30.314968]  intlog2_test+0x88/0x180
[   30.315390]  kunit_try_run_case+0x118/0x31c
[   30.315815]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   30.316410]  kthread+0x3f4/0x51c
[   30.316824]  ret_from_fork+0x10/0x20
[   30.317439] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.407947] WARNING: CPU: 0 PID: 416 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   31.411089] Modules linked in:
[   31.411979] CPU: 0 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc5 #1 PREEMPT 
[   31.413241] Tainted: [D]=DIE, [N]=TEST
[   31.414005] Hardware name: linux,dummy-virt (DT)
[   31.414785] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   31.415643] pc : intlog2+0xd4/0xec
[   31.415971] lr : intlog2_test+0xdc/0x1e0
[   31.416245] sp : ffff800082007bf0
[   31.416436] x29: ffff800082007bf0 x28: 0000000000000000 x27: 0000000000000000
[   31.416879] x26: 0000000000000000 x25: fff00000c7a29280 x24: fff00000c7a29280
[   31.417688] x23: 0000000000000000 x22: ffffb030237e7bb8 x21: ffffb0302213fc60
[   31.418480] x20: 1ffff00010400f86 x19: ffff800080087a00 x18: 00000000000010d8
[   31.419248] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   31.420197] x14: 00000000000010f8 x13: ffff760604ebd129 x12: 1ffff60604ebd128
[   31.420975] x11: 1ffff60604ebd128 x10: ffff760604ebd128 x9 : dfff800000000000
[   31.421741] x8 : 0000000000000001 x7 : ffff760604ebd129 x6 : ffffb030275e8943
[   31.422491] x5 : 0000000041b58ab3 x4 : ffff700010400f86 x3 : 1ffff60604427f8c
[   31.423092] x2 : 1ffff60604427f8c x1 : 0000000000000003 x0 : 0000000000000000
[   31.423454] Call trace:
[   31.423604]  intlog2+0xd4/0xec (P)
[   31.424048]  kunit_try_run_case+0x144/0x3bc
[   31.424511]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   31.425056]  kthread+0x3f0/0x744
[   31.425431]  ret_from_fork+0x10/0x20
[   31.425920] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   27.553924] WARNING: CPU: 0 PID: 416 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   27.556970] Modules linked in:
[   27.557227] CPU: 0 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc5 #1 PREEMPT 
[   27.557688] Tainted: [D]=DIE, [N]=TEST
[   27.558096] Hardware name: linux,dummy-virt (DT)
[   27.558764] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   27.559623] pc : intlog2+0xb8/0x118
[   27.560136] lr : intlog2_test+0x88/0x180
[   27.560596] sp : ffff800081f77cd0
[   27.560991] x29: ffff800081f77cf0 x28: dfff800000000000 x27: 1ffe000018f4b4a5
[   27.561796] x26: fff00000c3d905a0 x25: ffff8000800878a8 x24: 0000000000000000
[   27.562720] x23: dfff800000000000 x22: fff00000c7a5af18 x21: ffffa2c5b5d5e7d0
[   27.563415] x20: ffffa2c5b41e58a0 x19: ffff800080087b08 x18: ffff800080097920
[   27.563809] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   27.564182] x14: 1ffff458b6e62080 x13: 0000000000000000 x12: 0000000000000000
[   27.564594] x11: ffff7458b6e62081 x10: 0000000000000017 x9 : 0000000000000007
[   27.565538] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   27.566440] x5 : 00000000fbe1ea70 x4 : 0000000000000001 x3 : ffffa2c5b1783964
[   27.567278] x2 : 0000000000000000 x1 : 00000000001da28c x0 : 0000000000000000
[   27.568097] Call trace:
[   27.568432]  intlog2+0xb8/0x118 (P)
[   27.568879]  intlog2_test+0x88/0x180
[   27.569326]  kunit_try_run_case+0x118/0x31c
[   27.569826]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   27.570520]  kthread+0x3f4/0x51c
[   27.571038]  ret_from_fork+0x10/0x20
[   27.571541] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   97.581704] WARNING: CPU: 0 PID: 638 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[   97.582552] Modules linked in:
[   97.582827] CPU: 0 UID: 0 PID: 638 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc5 #1 PREEMPT 
[   97.583351] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[   97.583652] Hardware name: linux,dummy-virt (DT)
[   97.583957] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   97.584337] pc : intlog2+0xd8/0xf8
[   97.584546] lr : intlog2_test+0xe4/0x200
[   97.584767] sp : ffff8000821b7c10
[   97.584968] x29: ffff8000821b7c90 x28: 0000000000000000 x27: 0000000000000000
[   97.585518] x26: 1ffe000018c71b81 x25: 0000000000000000 x24: ffff8000821b7ce0
[   97.587082] x23: ffff8000821b7d00 x22: 0000000000000000 x21: 1ffff00010436f82
[   97.587552] x20: ffffabf26c289d80 x19: ffff800080087990 x18: 0000000013b00362
[   97.587979] x17: 00000000ef8698b4 x16: fff00000c097543c x15: 00000000e597c46b
[   97.588414] x14: 000000004e1b4826 x13: 1ffe00001b48e9cd x12: ffff757e4e023379
[   97.588847] x11: 1ffff57e4e023378 x10: ffff757e4e023378 x9 : ffffabf26983521c
[   97.589504] x8 : ffffabf270119bc3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   97.589941] x5 : ffff700010436f82 x4 : 1ffff00010010f3a x3 : 1ffff57e4d8513b0
[   97.590649] x2 : 1ffff57e4d8513b0 x1 : 0000000000000003 x0 : 0000000000000000
[   97.591108] Call trace:
[   97.591410]  intlog2+0xd8/0xf8 (P)
[   97.592282]  kunit_try_run_case+0x170/0x3f0
[   97.592609]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   97.592854]  kthread+0x328/0x630
[   97.593039]  ret_from_fork+0x10/0x20
[   97.593268] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   29.005803] WARNING: CPU: 1 PID: 415 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   29.006565] Modules linked in:
[   29.007049] CPU: 1 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc5 #1 PREEMPT 
[   29.008064] Tainted: [D]=DIE, [N]=TEST
[   29.008466] Hardware name: linux,dummy-virt (DT)
[   29.008722] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   29.009004] pc : intlog2+0xd0/0xe8
[   29.009442] lr : intlog2_test+0xdc/0x1f0
[   29.009905] sp : ffff800080f57c10
[   29.010283] x29: ffff800080f57c90 x28: 0000000000000000 x27: 0000000000000000
[   29.011202] x26: 1ffe000018f08281 x25: fff00000c7925c80 x24: 0000000000000004
[   29.011965] x23: fff00000c7925c80 x22: 0000000000000000 x21: 1ffff000101eaf82
[   29.012629] x20: ffffa1feba8cfe00 x19: ffff8000800879a0 x18: 00000000fe84c220
[   29.012969] x17: 000000009e911ae6 x16: fff00000c089773c x15: 0000000000007eb0
[   29.013315] x14: 1ffe00001b51ecd5 x13: 00000000f1f1f1f1 x12: ffff743fd7bc3d39
[   29.013650] x11: 1ffff43fd7bc3d38 x10: ffff743fd7bc3d38 x9 : dfff800000000000
[   29.013983] x8 : ffffa1febde1e9c3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   29.014765] x5 : ffff7000101eaf82 x4 : 1ffff00010010f3c x3 : 1ffff43fd7519fc0
[   29.015642] x2 : 1ffff43fd7519fc0 x1 : 0000000000000003 x0 : 0000000000000000
[   29.016377] Call trace:
[   29.016668]  intlog2+0xd0/0xe8 (P)
[   29.017067]  kunit_try_run_case+0x144/0x3bc
[   29.017506]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   29.018044]  kthread+0x37c/0x67c
[   29.018442]  ret_from_fork+0x10/0x20
[   29.018987] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  107.267383] WARNING: CPU: 1 PID: 656 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  107.267784] Modules linked in:
[  107.268004] CPU: 1 UID: 0 PID: 656 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc5 #1 PREEMPT(voluntary) 
[  107.269037] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  107.269368] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  107.269800] RIP: 0010:intlog2+0xdf/0x110
[  107.270029] Code: c9 8e 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 bf e8 55 ff 8b 45 e4 eb
[  107.270869] RSP: 0000:ffff888102bbfcb0 EFLAGS: 00010246
[  107.271210] RAX: 0000000000000000 RBX: ffff88810039fae8 RCX: 1ffff11020577fb4
[  107.271672] RDX: 1ffffffff1d92e08 RSI: 1ffff11020577fb3 RDI: 0000000000000000
[  107.271911] RBP: ffff888102bbfd60 R08: 0000000000000000 R09: ffffed1021117f40
[  107.272240] R10: ffff8881088bfa07 R11: 0000000000000000 R12: 1ffff11020577f97
[  107.272564] R13: ffffffff8ec97040 R14: 0000000000000000 R15: ffff888102bbfd38
[  107.272855] FS:  0000000000000000(0000) GS:ffff8881ca372000(0000) knlGS:0000000000000000
[  107.273206] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  107.273475] CR2: dffffc0000000000 CR3: 00000000438bc000 CR4: 00000000000006f0
[  107.273767] DR0: ffffffff90e52440 DR1: ffffffff90e52441 DR2: ffffffff90e52443
[  107.274071] DR3: ffffffff90e52445 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  107.274627] Call Trace:
[  107.274782]  <TASK>
[  107.274892]  ? intlog2_test+0xf2/0x220
[  107.275462]  ? __pfx_intlog2_test+0x10/0x10
[  107.275635]  ? sysvec_apic_timer_interrupt+0x50/0x90
[  107.276053]  ? trace_hardirqs_on+0x37/0xe0
[  107.276437]  ? __pfx_read_tsc+0x10/0x10
[  107.276685]  ? ktime_get_ts64+0x86/0x230
[  107.276866]  kunit_try_run_case+0x1a5/0x480
[  107.277290]  ? __pfx_kunit_try_run_case+0x10/0x10
[  107.277606]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  107.277910]  ? __kthread_parkme+0x82/0x180
[  107.278166]  ? preempt_count_sub+0x50/0x80
[  107.278502]  ? __pfx_kunit_try_run_case+0x10/0x10
[  107.279251]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  107.280056]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  107.280848]  kthread+0x337/0x6f0
[  107.281408]  ? trace_preempt_on+0x20/0xc0
[  107.281807]  ? __pfx_kthread+0x10/0x10
[  107.282174]  ? _raw_spin_unlock_irq+0x47/0x80
[  107.282810]  ? calculate_sigpending+0x7b/0xa0
[  107.283478]  ? __pfx_kthread+0x10/0x10
[  107.284035]  ret_from_fork+0x116/0x1d0
[  107.284454]  ? __pfx_kthread+0x10/0x10
[  107.284612]  ret_from_fork_asm+0x1a/0x30
[  107.284775]  </TASK>
[  107.284891] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details