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Date
July 17, 2025, 11:10 a.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   26.420780] WARNING: CPU: 1 PID: 415 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.422447] Modules linked in:
[   26.423014] CPU: 1 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   26.424427] Tainted: [D]=DIE, [N]=TEST
[   26.425000] Hardware name: linux,dummy-virt (DT)
[   26.425606] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   26.426402] pc : intlog2+0xb8/0x118
[   26.426992] lr : intlog2_test+0x88/0x180
[   26.427452] sp : ffff800080f27cd0
[   26.427954] x29: ffff800080f27cf0 x28: dfff800000000000 x27: 1ffe000018f67945
[   26.428487] x26: fff00000c770fba0 x25: ffff8000800878a8 x24: 0000000000000000
[   26.428867] x23: dfff800000000000 x22: fff00000c7b3d418 x21: ffff9934b795e790
[   26.429232] x20: ffff9934b5dd6740 x19: ffff800080087b08 x18: ffff800080097920
[   26.429597] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   26.430346] x14: 1ffff326971e2280 x13: 0000000000000000 x12: 0000000000000000
[   26.431086] x11: ffff7326971e2281 x10: 0000000000000017 x9 : 0000000000000007
[   26.431869] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   26.432634] x5 : 00000000c3b55537 x4 : 0000000000000001 x3 : ffff9934b337d200
[   26.433389] x2 : 0000000000000000 x1 : 000000000064ee7a x0 : 0000000000000000
[   26.434134] Call trace:
[   26.434422]  intlog2+0xb8/0x118 (P)
[   26.434827]  intlog2_test+0x88/0x180
[   26.435203]  kunit_try_run_case+0x118/0x31c
[   26.435626]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.436334]  kthread+0x3f4/0x51c
[   26.436769]  ret_from_fork+0x10/0x20
[   26.437413] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   25.998123] WARNING: CPU: 0 PID: 416 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.000078] Modules linked in:
[   26.000568] CPU: 0 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   26.001439] Tainted: [D]=DIE, [N]=TEST
[   26.001624] Hardware name: linux,dummy-virt (DT)
[   26.001830] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   26.002105] pc : intlog2+0xb8/0x118
[   26.002307] lr : intlog2_test+0x88/0x180
[   26.002497] sp : ffff800080e47cd0
[   26.002657] x29: ffff800080e47cf0 x28: dfff800000000000 x27: 1ffe000018f3d005
[   26.003038] x26: fff00000c57e2720 x25: ffff8000800878a8 x24: 0000000000000000
[   26.003428] x23: dfff800000000000 x22: fff00000c79e8a18 x21: ffffa80b3f35e790
[   26.004006] x20: ffffa80b3d7e5820 x19: ffff800080087b08 x18: ffff800080097920
[   26.004691] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   26.005513] x14: 1ffff50168122080 x13: 0000000000000000 x12: 0000000000000000
[   26.006301] x11: ffff750168122081 x10: 0000000000000017 x9 : 0000000000000007
[   26.006680] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   26.007053] x5 : 00000000ad7c950a x4 : 0000000000000004 x3 : ffffa80b3ad83910
[   26.007566] x2 : 0000000000000000 x1 : 000000000030f8db x0 : 0000000000000000
[   26.008037] Call trace:
[   26.008247]  intlog2+0xb8/0x118 (P)
[   26.008537]  intlog2_test+0x88/0x180
[   26.008760]  kunit_try_run_case+0x118/0x31c
[   26.009009]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.009337]  kthread+0x3f4/0x51c
[   26.009554]  ret_from_fork+0x10/0x20
[   26.009854] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   95.673476] WARNING: CPU: 1 PID: 639 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[   95.674576] Modules linked in:
[   95.674834] CPU: 1 UID: 0 PID: 639 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT 
[   95.675367] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[   95.675661] Hardware name: linux,dummy-virt (DT)
[   95.675920] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   95.676301] pc : intlog2+0xd8/0xf8
[   95.676519] lr : intlog2_test+0xe4/0x200
[   95.676731] sp : ffff800082347c10
[   95.676895] x29: ffff800082347c90 x28: 0000000000000000 x27: 0000000000000000
[   95.677698] x26: 1ffe000018f5f7c1 x25: 0000000000000000 x24: ffff800082347ce0
[   95.678139] x23: ffff800082347d00 x22: 0000000000000000 x21: 1ffff00010468f82
[   95.678582] x20: ffffa84829c89c80 x19: ffff800080087990 x18: 000000009f0f6ddf
[   95.679005] x17: 00000000cd8bdb4e x16: 00000000ee984d8b x15: 0000000029b725ce
[   95.679427] x14: 00000000c128f1ca x13: 0000000000000005 x12: ffff750905b63379
[   95.679827] x11: 1ffff50905b63378 x10: ffff750905b63378 x9 : ffffa8482723605c
[   95.680274] x8 : ffffa8482db19bc3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   95.680697] x5 : ffff700010468f82 x4 : 1ffff00010010f3a x3 : 1ffff50905391390
[   95.681218] x2 : 1ffff50905391390 x1 : 0000000000000003 x0 : 0000000000000000
[   95.681655] Call trace:
[   95.681817]  intlog2+0xd8/0xf8 (P)
[   95.682041]  kunit_try_run_case+0x170/0x3f0
[   95.682303]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   95.682616]  kthread+0x328/0x630
[   95.682834]  ret_from_fork+0x10/0x20
[   95.683096] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   28.889918] WARNING: CPU: 1 PID: 415 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   28.892232] Modules linked in:
[   28.892515] CPU: 1 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   28.893243] Tainted: [D]=DIE, [N]=TEST
[   28.893455] Hardware name: linux,dummy-virt (DT)
[   28.893732] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   28.894075] pc : intlog2+0xd0/0xe8
[   28.894835] lr : intlog2_test+0xdc/0x1f0
[   28.895019] sp : ffff800080f47c10
[   28.895174] x29: ffff800080f47c90 x28: 0000000000000000 x27: 0000000000000000
[   28.895607] x26: 1ffe0000187aa981 x25: fff00000c7954a00 x24: 0000000000000004
[   28.896048] x23: fff00000c7954a00 x22: 0000000000000000 x21: 1ffff000101e8f82
[   28.896490] x20: ffff98bb0f8cfd40 x19: ffff8000800879a0 x18: 1ffff00010012ece
[   28.896954] x17: fff00000c0369288 x16: fff00000c089773c x15: 0000000000007eb0
[   28.897434] x14: 1ffe00001b51ecd5 x13: 1ffe000018f2a942 x12: ffff7317625c3d39
[   28.897964] x11: 1ffff317625c3d38 x10: ffff7317625c3d38 x9 : dfff800000000000
[   28.898588] x8 : ffff98bb12e1e9c3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   28.899233] x5 : ffff7000101e8f82 x4 : 1ffff00010010f3c x3 : 1ffff31761f19fa8
[   28.899694] x2 : 1ffff31761f19fa8 x1 : 0000000000000003 x0 : 0000000000000000
[   28.900080] Call trace:
[   28.900269]  intlog2+0xd0/0xe8 (P)
[   28.900514]  kunit_try_run_case+0x144/0x3bc
[   28.900794]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   28.901236]  kthread+0x37c/0x67c
[   28.901529]  ret_from_fork+0x10/0x20
[   28.901862] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.027568] WARNING: CPU: 1 PID: 415 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   31.030188] Modules linked in:
[   31.030765] CPU: 1 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   31.031397] Tainted: [D]=DIE, [N]=TEST
[   31.031600] Hardware name: linux,dummy-virt (DT)
[   31.031815] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   31.032112] pc : intlog2+0xd4/0xec
[   31.032300] lr : intlog2_test+0xdc/0x1e0
[   31.032648] sp : ffff800080ee7bf0
[   31.032996] x29: ffff800080ee7bf0 x28: 0000000000000000 x27: 0000000000000000
[   31.033770] x26: 0000000000000000 x25: fff00000c78d4a00 x24: fff00000c78d4a00
[   31.034588] x23: 0000000000000000 x22: ffff9a997afe8778 x21: ffff9a997993fba0
[   31.035564] x20: 1ffff000101dcf86 x19: ffff800080087a00 x18: 00000000000010d8
[   31.036325] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   31.037083] x14: 00000000000010f8 x13: ffff73532fdbd129 x12: 1ffff3532fdbd128
[   31.037840] x11: 1ffff3532fdbd128 x10: ffff73532fdbd128 x9 : dfff800000000000
[   31.038652] x8 : 0000000000000001 x7 : ffff73532fdbd129 x6 : ffff9a997ede8943
[   31.039584] x5 : 0000000041b58ab3 x4 : ffff7000101dcf86 x3 : 1ffff3532f327f74
[   31.040327] x2 : 1ffff3532f327f74 x1 : 0000000000000003 x0 : 0000000000000000
[   31.041002] Call trace:
[   31.041151]  intlog2+0xd4/0xec (P)
[   31.041350]  kunit_try_run_case+0x144/0x3bc
[   31.041806]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   31.042343]  kthread+0x3f0/0x744
[   31.042801]  ret_from_fork+0x10/0x20
[   31.043380] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  107.367471] WARNING: CPU: 0 PID: 655 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  107.368436] Modules linked in:
[  107.368797] CPU: 0 UID: 0 PID: 655 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  107.369494] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  107.370027] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  107.370855] RIP: 0010:intlog2+0xdf/0x110
[  107.371139] Code: 09 bb 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
[  107.372431] RSP: 0000:ffff888103727cb0 EFLAGS: 00010246
[  107.372622] RAX: 0000000000000000 RBX: ffff88810039fae8 RCX: 1ffff110206e4fb4
[  107.372829] RDX: 1ffffffff7612e18 RSI: 1ffff110206e4fb3 RDI: 0000000000000000
[  107.373287] RBP: ffff888103727d60 R08: 0000000000000000 R09: ffffed1020c8f880
[  107.374078] R10: ffff88810647c407 R11: 0000000000000000 R12: 1ffff110206e4f97
[  107.374905] R13: ffffffffbb0970c0 R14: 0000000000000000 R15: ffff888103727d38
[  107.375654] FS:  0000000000000000(0000) GS:ffff88819de72000(0000) knlGS:0000000000000000
[  107.376575] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  107.377206] CR2: ffff88815a8eefe0 CR3: 000000007b0bc000 CR4: 00000000000006f0
[  107.377438] DR0: ffffffffbd252440 DR1: ffffffffbd252441 DR2: ffffffffbd252443
[  107.377646] DR3: ffffffffbd252445 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  107.377850] Call Trace:
[  107.377952]  <TASK>
[  107.378042]  ? intlog2_test+0xf2/0x220
[  107.378217]  ? __pfx_intlog2_test+0x10/0x10
[  107.378620]  ? __schedule+0x10cc/0x2b60
[  107.378848]  ? __pfx_read_tsc+0x10/0x10
[  107.379055]  ? ktime_get_ts64+0x86/0x230
[  107.379211]  kunit_try_run_case+0x1a5/0x480
[  107.379361]  ? __pfx_kunit_try_run_case+0x10/0x10
[  107.379722]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  107.379993]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  107.380438]  ? __kthread_parkme+0x82/0x180
[  107.380636]  ? preempt_count_sub+0x50/0x80
[  107.381225]  ? __pfx_kunit_try_run_case+0x10/0x10
[  107.381718]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  107.381953]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  107.382155]  kthread+0x337/0x6f0
[  107.382391]  ? trace_preempt_on+0x20/0xc0
[  107.382766]  ? __pfx_kthread+0x10/0x10
[  107.383136]  ? _raw_spin_unlock_irq+0x47/0x80
[  107.383577]  ? calculate_sigpending+0x7b/0xa0
[  107.383998]  ? __pfx_kthread+0x10/0x10
[  107.384429]  ret_from_fork+0x116/0x1d0
[  107.384870]  ? __pfx_kthread+0x10/0x10
[  107.385251]  ret_from_fork_asm+0x1a/0x30
[  107.385642]  </TASK>
[  107.385773] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details