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Date
July 9, 2025, 11:07 p.m.

Environment
qemu-arm64
qemu-x86_64 

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[   26.459260] WARNING: CPU: 1 PID: 415 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.460140] Modules linked in:
[   26.460458] CPU: 1 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc5 #1 PREEMPT 
[   26.461463] Tainted: [D]=DIE, [N]=TEST
[   26.461841] Hardware name: linux,dummy-virt (DT)
[   26.462387] pstate: 81400009 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[   26.463193] pc : intlog2+0xb8/0x118
[   26.463671] lr : intlog2_test+0x88/0x180
[   26.464137] sp : ffff800081f97cd0
[   26.464534] x29: ffff800081f97cf0 x28: dfff800000000000 x27: 1ffe000018fa7b95
[   26.465417] x26: fff00000c7c99e20 x25: ffff8000800878a8 x24: 0000000000000000
[   26.465951] x23: dfff800000000000 x22: fff00000c7d3e698 x21: ffffa18ccc75e810
[   26.466325] x20: ffffa18ccabd6800 x19: ffff800080087b08 x18: 0000000000000002
[   26.466689] x17: 0000000000000075 x16: 0000000000000000 x15: 0000000000000001
[   26.467457] x14: 1ffff43199ba2280 x13: 0000000000000000 x12: 0000000000000000
[   26.468216] x11: ffff743199ba2281 x10: 0000000000000017 x9 : 0000000000000007
[   26.469325] x8 : 0000000000000000 x7 : 00000000766f31e2 x6 : 000000005fdad854
[   26.470209] x5 : 000000003144f4fd x4 : 0000000000000000 x3 : ffffa18cc817d234
[   26.470972] x2 : 0000000000000000 x1 : 000000000057e087 x0 : 0000000000000000
[   26.471708] Call trace:
[   26.472002]  intlog2+0xb8/0x118 (P)
[   26.472433]  intlog2_test+0x88/0x180
[   26.472872]  kunit_try_run_case+0x118/0x31c
[   26.473320]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.473869]  kthread+0x3f4/0x51c
[   26.474189]  ret_from_fork+0x10/0x20
[   26.474429] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

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[   95.818963] WARNING: CPU: 1 PID: 638 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[   95.822634] Modules linked in:
[   95.823254] CPU: 1 UID: 0 PID: 638 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc5 #1 PREEMPT 
[   95.824488] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[   95.825158] Hardware name: linux,dummy-virt (DT)
[   95.825372] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   95.826420] pc : intlog2+0xd8/0xf8
[   95.826964] lr : intlog2_test+0xe4/0x200
[   95.827606] sp : ffff800082277c10
[   95.828157] x29: ffff800082277c90 x28: 0000000000000000 x27: 0000000000000000
[   95.828981] x26: 1ffe000019013ec1 x25: 0000000000000000 x24: ffff800082277ce0
[   95.829343] x23: ffff800082277d00 x22: 0000000000000000 x21: 1ffff0001044ef82
[   95.829686] x20: ffffb06b70a89d80 x19: ffff800080087990 x18: 00000000bf8cd8f2
[   95.830018] x17: 00000000272f94c8 x16: fff00000c0975c3c x15: 00000000e8898e4f
[   95.831126] x14: 00000000f1f1f1f1 x13: 1ffe00001b48a5cd x12: ffff760d6e923379
[   95.832048] x11: 1ffff60d6e923378 x10: ffff760d6e923378 x9 : ffffb06b6e036a5c
[   95.832957] x8 : ffffb06b74919bc3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   95.833763] x5 : ffff70001044ef82 x4 : 1ffff00010010f3a x3 : 1ffff60d6e1513b0
[   95.834543] x2 : 1ffff60d6e1513b0 x1 : 0000000000000003 x0 : 0000000000000000
[   95.835308] Call trace:
[   95.835624]  intlog2+0xd8/0xf8 (P)
[   95.836096]  kunit_try_run_case+0x170/0x3f0
[   95.836691]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   95.837286]  kthread+0x328/0x630
[   95.837686]  ret_from_fork+0x10/0x20
[   95.838163] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   28.964872] WARNING: CPU: 0 PID: 416 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   28.969232] Modules linked in:
[   28.971042] CPU: 0 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc5 #1 PREEMPT 
[   28.972110] Tainted: [D]=DIE, [N]=TEST
[   28.972596] Hardware name: linux,dummy-virt (DT)
[   28.972808] pstate: 11400009 (nzcV daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[   28.973080] pc : intlog2+0xd0/0xe8
[   28.973255] lr : intlog2_test+0xdc/0x1f0
[   28.973872] sp : ffff800080cb7c10
[   28.974113] x29: ffff800080cb7c90 x28: 0000000000000000 x27: 0000000000000000
[   28.974530] x26: 1ffe000018f10e41 x25: fff00000c795a500 x24: 0000000000000004
[   28.975009] x23: fff00000c795a500 x22: 0000000000000000 x21: 1ffff00010196f82
[   28.975607] x20: ffffaec3692cfe00 x19: ffff8000800879a0 x18: 000000002e510868
[   28.976484] x17: 00000000a4d9b924 x16: fff00000c089763c x15: 0000000000007eb0
[   28.977259] x14: 1ffe00001b521ed5 x13: 1ffe000018f2b4a2 x12: ffff75d86d903d39
[   28.977831] x11: 1ffff5d86d903d38 x10: ffff75d86d903d38 x9 : dfff800000000000
[   28.978173] x8 : ffffaec36c81e9c3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   28.978940] x5 : ffff700010196f82 x4 : 1ffff00010010f3c x3 : 1ffff5d86d259fc0
[   28.979774] x2 : 1ffff5d86d259fc0 x1 : 0000000000000003 x0 : 0000000000000000
[   28.980702] Call trace:
[   28.981022]  intlog2+0xd0/0xe8 (P)
[   28.981461]  kunit_try_run_case+0x144/0x3bc
[   28.981949]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   28.982354]  kthread+0x37c/0x67c
[   28.982626]  ret_from_fork+0x10/0x20
[   28.983074] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   25.958160] WARNING: CPU: 1 PID: 416 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   25.959067] Modules linked in:
[   25.959302] CPU: 1 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc5 #1 PREEMPT 
[   25.959693] Tainted: [D]=DIE, [N]=TEST
[   25.959910] Hardware name: linux,dummy-virt (DT)
[   25.960162] pstate: 81400009 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[   25.960507] pc : intlog2+0xb8/0x118
[   25.960756] lr : intlog2_test+0x88/0x180
[   25.962253] sp : ffff800082077cd0
[   25.962785] x29: ffff800082077cf0 x28: dfff800000000000 x27: 1ffe000018f50255
[   25.963168] x26: fff00000c7b35120 x25: ffff8000800878a8 x24: 0000000000000000
[   25.963536] x23: dfff800000000000 x22: fff00000c7a81c98 x21: ffffad68faf5e810
[   25.964111] x20: ffffad68f93e58a0 x19: ffff800080087b08 x18: ffff800080097920
[   25.965311] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   25.966251] x14: 1ffff5ad1f8a2080 x13: 0000000000000000 x12: 0000000000000000
[   25.967145] x11: ffff75ad1f8a2081 x10: 0000000000000017 x9 : 0000000000000007
[   25.968056] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   25.969036] x5 : 00000000d3351d4c x4 : 0000000000000000 x3 : ffffad68f6983964
[   25.969717] x2 : 0000000000000000 x1 : 0000000000223a7f x0 : 0000000000000000
[   25.970098] Call trace:
[   25.970240]  intlog2+0xb8/0x118 (P)
[   25.970441]  intlog2_test+0x88/0x180
[   25.970646]  kunit_try_run_case+0x118/0x31c
[   25.971115]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   25.971403]  kthread+0x3f4/0x51c
[   25.971977]  ret_from_fork+0x10/0x20
[   25.972283] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.563730] WARNING: CPU: 0 PID: 416 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   31.567277] Modules linked in:
[   31.567684] CPU: 0 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc5 #1 PREEMPT 
[   31.568198] Tainted: [D]=DIE, [N]=TEST
[   31.568383] Hardware name: linux,dummy-virt (DT)
[   31.568666] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   31.569027] pc : intlog2+0xd4/0xec
[   31.569281] lr : intlog2_test+0xdc/0x1e0
[   31.569517] sp : ffff800080e57bf0
[   31.569727] x29: ffff800080e57bf0 x28: 0000000000000000 x27: 0000000000000000
[   31.570180] x26: 0000000000000000 x25: fff00000c7965c80 x24: fff00000c7965c80
[   31.570606] x23: 0000000000000000 x22: ffff92538ebe9b98 x21: ffff92538d53fc60
[   31.571097] x20: 1ffff000101caf86 x19: ffff800080087a00 x18: 00000000000010d8
[   31.571547] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   31.571956] x14: 00000000000010f8 x13: ffff724a7253d129 x12: 1ffff24a7253d128
[   31.572415] x11: 1ffff24a7253d128 x10: ffff724a7253d128 x9 : dfff800000000000
[   31.572877] x8 : 0000000000000001 x7 : ffff724a7253d129 x6 : ffff9253929e8943
[   31.573818] x5 : 0000000041b58ab3 x4 : ffff7000101caf86 x3 : 1ffff24a71aa7f8c
[   31.574228] x2 : 1ffff24a71aa7f8c x1 : 0000000000000003 x0 : 0000000000000000
[   31.574591] Call trace:
[   31.574739]  intlog2+0xd4/0xec (P)
[   31.575675]  kunit_try_run_case+0x144/0x3bc
[   31.576329]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   31.576596]  kthread+0x3f0/0x744
[   31.576789]  ret_from_fork+0x10/0x20
[   31.577081] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  108.197578] WARNING: CPU: 0 PID: 655 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  108.198360] Modules linked in:
[  108.198737] CPU: 0 UID: 0 PID: 655 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc5 #1 PREEMPT(voluntary) 
[  108.199892] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  108.200339] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  108.200610] RIP: 0010:intlog2+0xdf/0x110
[  108.200775] Code: a9 8c 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 02 a9 86 02 90 <0f> 0b 90 31 c0 c3 cc cc cc cc 89 45 e4 e8 8f e8 55 ff 8b 45 e4 eb
[  108.201451] RSP: 0000:ffff88810b037cb0 EFLAGS: 00010246
[  108.201761] RAX: 0000000000000000 RBX: ffff88810039fae8 RCX: 1ffff11021606fb4
[  108.201983] RDX: 1ffffffff1952e08 RSI: 1ffff11021606fb3 RDI: 0000000000000000
[  108.202597] RBP: ffff88810b037d60 R08: 0000000000000000 R09: ffffed10204ee8c0
[  108.202859] R10: ffff888102774607 R11: 0000000000000000 R12: 1ffff11021606f97
[  108.203433] R13: ffffffff8ca97040 R14: 0000000000000000 R15: ffff88810b037d38
[  108.203713] FS:  0000000000000000(0000) GS:ffff8881cc472000(0000) knlGS:0000000000000000
[  108.204260] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  108.204512] CR2: dffffc0000000000 CR3: 000000002febc000 CR4: 00000000000006f0
[  108.204826] DR0: ffffffff8ec52440 DR1: ffffffff8ec52441 DR2: ffffffff8ec52442
[  108.205203] DR3: ffffffff8ec52443 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  108.205609] Call Trace:
[  108.205873]  <TASK>
[  108.206049]  ? intlog2_test+0xf2/0x220
[  108.206434]  ? __pfx_intlog2_test+0x10/0x10
[  108.206699]  ? __schedule+0x10cc/0x2b60
[  108.206908]  ? __pfx_read_tsc+0x10/0x10
[  108.207129]  ? ktime_get_ts64+0x86/0x230
[  108.207407]  kunit_try_run_case+0x1a5/0x480
[  108.207697]  ? __pfx_kunit_try_run_case+0x10/0x10
[  108.207984]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  108.208372]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  108.208619]  ? __kthread_parkme+0x82/0x180
[  108.208789]  ? preempt_count_sub+0x50/0x80
[  108.209003]  ? __pfx_kunit_try_run_case+0x10/0x10
[  108.209492]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  108.209704]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  108.210018]  kthread+0x337/0x6f0
[  108.210192]  ? trace_preempt_on+0x20/0xc0
[  108.210451]  ? __pfx_kthread+0x10/0x10
[  108.210679]  ? _raw_spin_unlock_irq+0x47/0x80
[  108.211123]  ? calculate_sigpending+0x7b/0xa0
[  108.211307]  ? __pfx_kthread+0x10/0x10
[  108.211527]  ret_from_fork+0x116/0x1d0
[  108.211705]  ? __pfx_kthread+0x10/0x10
[  108.211872]  ret_from_fork_asm+0x1a/0x30
[  108.212242]  </TASK>
[  108.212413] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details