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Date
July 15, 2025, 2:09 p.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   95.833849] WARNING: CPU: 0 PID: 640 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[   95.836595] Modules linked in:
[   95.837175] CPU: 0 UID: 0 PID: 640 Comm: kunit_try_catch Tainted: G    B D          N  6.15.7-rc1 #1 PREEMPT 
[   95.838188] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[   95.838417] Hardware name: linux,dummy-virt (DT)
[   95.838817] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   95.839752] pc : intlog2+0xd8/0xf8
[   95.840199] lr : intlog2_test+0xe4/0x200
[   95.840818] sp : ffff800080fc7c10
[   95.841222] x29: ffff800080fc7c90 x28: 0000000000000000 x27: 0000000000000000
[   95.842105] x26: 1ffe000018b3a6a1 x25: 0000000000000000 x24: ffff800080fc7ce0
[   95.842910] x23: ffff800080fc7d00 x22: 0000000000000000 x21: 1ffff000101f8f82
[   95.843797] x20: ffff977f45e35100 x19: ffff800080087990 x18: 00000000349b827c
[   95.844711] x17: 00000000c7bff53d x16: fff00000c096dc3c x15: 00000000386ef94e
[   95.845535] x14: 00000000f1f1f1f1 x13: 1ffe00001b493c1d x12: ffff72efe9379b71
[   95.846193] x11: 1ffff2efe9379b70 x10: ffff72efe9379b70 x9 : ffff977f43415be4
[   95.846557] x8 : ffff977f49bcdb83 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   95.846904] x5 : ffff7000101f8f82 x4 : 1ffff00010010f3a x3 : 1ffff2efe8bc6a20
[   95.847317] x2 : 1ffff2efe8bc6a20 x1 : 0000000000000003 x0 : 0000000000000000
[   95.848034] Call trace:
[   95.848325]  intlog2+0xd8/0xf8 (P)
[   95.848710]  kunit_try_run_case+0x170/0x3f0
[   95.849152]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   95.849770]  kthread+0x328/0x630
[   95.850201]  ret_from_fork+0x10/0x20
[   95.850649] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   26.129447] WARNING: CPU: 0 PID: 418 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.131067] Modules linked in:
[   26.131323] CPU: 0 UID: 0 PID: 418 Comm: kunit_try_catch Tainted: G      D          N  6.15.7-rc1 #1 PREEMPT 
[   26.132382] Tainted: [D]=DIE, [N]=TEST
[   26.132804] Hardware name: linux,dummy-virt (DT)
[   26.133170] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   26.133515] pc : intlog2+0xb8/0x118
[   26.134135] lr : intlog2_test+0x88/0x180
[   26.134593] sp : ffff8000820c7cd0
[   26.134981] x29: ffff8000820c7cf0 x28: dfff800000000000 x27: 1ffe000018f584a5
[   26.135494] x26: fff00000c5828720 x25: ffff8000800878a8 x24: 0000000000000000
[   26.136071] x23: dfff800000000000 x22: fff00000c7ac2f18 x21: ffffa1abe8eacd10
[   26.136997] x20: ffffa1abe7392ec0 x19: ffff800080087b08 x18: ffff800080097930
[   26.137943] x17: ffff80008009792c x16: 0000000000000000 x15: 0000000000000001
[   26.138829] x14: 1ffff4357d47e078 x13: 0000000000000000 x12: 0000000000000000
[   26.139608] x11: ffff74357d47e079 x10: 0000000000000017 x9 : 0000000000000007
[   26.139988] x8 : 0000000000000000 x7 : ffff80008009793c x6 : 0000000000000014
[   26.140354] x5 : 00000000b544f4b4 x4 : 0000000000000000 x3 : ffffa1abe4973244
[   26.140713] x2 : 0000000000000000 x1 : 00000000003a69f9 x0 : 0000000000000000
[   26.141077] Call trace:
[   26.141216]  intlog2+0xb8/0x118 (P)
[   26.141410]  intlog2_test+0x88/0x180
[   26.141592]  kunit_try_run_case+0x118/0x31c
[   26.141826]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.142630]  kthread+0x3f4/0x518
[   26.143055]  ret_from_fork+0x10/0x20
[   26.143645] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.524640] WARNING: CPU: 0 PID: 418 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   31.528068] Modules linked in:
[   31.528348] CPU: 0 UID: 0 PID: 418 Comm: kunit_try_catch Tainted: G      D          N  6.15.7-rc1 #1 PREEMPT 
[   31.530819] Tainted: [D]=DIE, [N]=TEST
[   31.531355] Hardware name: linux,dummy-virt (DT)
[   31.531914] pstate: 11400009 (nzcV daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[   31.532703] pc : intlog2+0xd4/0xec
[   31.533090] lr : intlog2_test+0xdc/0x1e0
[   31.533510] sp : ffff800080f67bf0
[   31.533859] x29: ffff800080f67bf0 x28: 0000000000000000 x27: 0000000000000000
[   31.534799] x26: 0000000000000000 x25: fff00000c796b780 x24: fff00000c796b780
[   31.535682] x23: 0000000000000000 x22: ffffa1bb6af3af78 x21: ffffa1bb698fc220
[   31.536427] x20: 1ffff000101ecf86 x19: ffff800080087a10 x18: 00000000000010d8
[   31.537169] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   31.537944] x14: 00000000000010f8 x13: ffff74376dd88321 x12: 1ffff4376dd88320
[   31.538824] x11: 1ffff4376dd88320 x10: ffff74376dd88320 x9 : dfff800000000000
[   31.539585] x8 : 0000000000000001 x7 : ffff74376dd88321 x6 : ffffa1bb6ec41903
[   31.540345] x5 : 0000000041b58ab3 x4 : ffff7000101ecf86 x3 : 1ffff4376d31f844
[   31.540773] x2 : 1ffff4376d31f844 x1 : 0000000000000003 x0 : 0000000000000000
[   31.541136] Call trace:
[   31.541289]  intlog2+0xd4/0xec (P)
[   31.541742]  kunit_try_run_case+0x144/0x3bc
[   31.542287]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   31.542909]  kthread+0x3f0/0x744
[   31.543305]  ret_from_fork+0x10/0x20
[   31.543818] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   30.235051] WARNING: CPU: 1 PID: 418 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   30.237004] Modules linked in:
[   30.237497] CPU: 1 UID: 0 PID: 418 Comm: kunit_try_catch Tainted: G      D          N  6.15.7-rc1 #1 PREEMPT 
[   30.238390] Tainted: [D]=DIE, [N]=TEST
[   30.238562] Hardware name: linux,dummy-virt (DT)
[   30.238753] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   30.239063] pc : intlog2+0xd0/0xe8
[   30.239270] lr : intlog2_test+0xdc/0x1f0
[   30.239506] sp : ffff800080cf7c10
[   30.239710] x29: ffff800080cf7c90 x28: 0000000000000000 x27: 0000000000000000
[   30.240114] x26: 1ffe000018ab1ac1 x25: fff00000c7ab2500 x24: 0000000000000004
[   30.240528] x23: fff00000c7ab2500 x22: 0000000000000000 x21: 1ffff0001019ef82
[   30.241309] x20: ffffb0347807c100 x19: ffff8000800879b0 x18: 00000000cc1802ff
[   30.241719] x17: 0000000086cec3c0 x16: fff00000c089573c x15: 00000000cdf41bf5
[   30.242139] x14: 1ffe00001b52371d x13: 1ffe000018f5c252 x12: ffff76068f69ef31
[   30.242541] x11: 1ffff6068f69ef30 x10: ffff76068f69ef30 x9 : dfff800000000000
[   30.242938] x8 : ffffb0347b4f7983 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   30.243478] x5 : ffff70001019ef82 x4 : 1ffff00010010f3e x3 : 1ffff6068f00f820
[   30.243914] x2 : 1ffff6068f00f820 x1 : 0000000000000003 x0 : 0000000000000000
[   30.244309] Call trace:
[   30.244458]  intlog2+0xd0/0xe8 (P)
[   30.244694]  kunit_try_run_case+0x144/0x3bc
[   30.244942]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   30.245211]  kthread+0x37c/0x67c
[   30.245425]  ret_from_fork+0x10/0x20
[   30.245712] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   26.033246] WARNING: CPU: 1 PID: 418 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.036638] Modules linked in:
[   26.037055] CPU: 1 UID: 0 PID: 418 Comm: kunit_try_catch Tainted: G      D          N  6.15.7-rc1 #1 PREEMPT 
[   26.037986] Tainted: [D]=DIE, [N]=TEST
[   26.038361] Hardware name: linux,dummy-virt (DT)
[   26.038859] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   26.039694] pc : intlog2+0xb8/0x118
[   26.040122] lr : intlog2_test+0x88/0x180
[   26.040542] sp : ffff800080f77cd0
[   26.040984] x29: ffff800080f77cf0 x28: dfff800000000000 x27: 1ffe000018f5c4a5
[   26.041874] x26: fff00000c7a3ada0 x25: ffff8000800878a8 x24: 0000000000000000
[   26.042798] x23: dfff800000000000 x22: fff00000c7ae2f18 x21: ffffa0764a2bcd10
[   26.043673] x20: ffffa076487a1ec0 x19: ffff800080087b08 x18: ffff800080097930
[   26.044055] x17: ffff80008009792c x16: 0000000000000000 x15: 0000000000000001
[   26.044427] x14: 1ffff40ec96ffe78 x13: 0000000000000000 x12: 0000000000000000
[   26.044858] x11: ffff740ec96ffe79 x10: 0000000000000017 x9 : 0000000000000007
[   26.045315] x8 : 0000000000000000 x7 : ffff80008009793c x6 : 0000000000000014
[   26.045833] x5 : 00000000de89c15a x4 : 0000000000000001 x3 : ffffa07645d78ae4
[   26.046326] x2 : 0000000000000000 x1 : 000000000048a4a6 x0 : 0000000000000000
[   26.046816] Call trace:
[   26.046998]  intlog2+0xb8/0x118 (P)
[   26.047323]  intlog2_test+0x88/0x180
[   26.047594]  kunit_try_run_case+0x118/0x31c
[   26.047850]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.048171]  kthread+0x3f4/0x518
[   26.048429]  ret_from_fork+0x10/0x20
[   26.048755] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  107.216406] WARNING: CPU: 0 PID: 657 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  107.217091] Modules linked in:
[  107.217492] CPU: 0 UID: 0 PID: 657 Comm: kunit_try_catch Tainted: G    B D          N  6.15.7-rc1 #1 PREEMPT(voluntary) 
[  107.218278] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  107.218786] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  107.219356] RIP: 0010:intlog2+0xdf/0x110
[  107.219509] Code: 89 99 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 d2 62 81 02 90 <0f> 0b 90 31 c0 e9 c7 62 81 02 89 45 e4 e8 9f 90 56 ff 8b 45 e4 eb
[  107.220784] RSP: 0000:ffff8881050ffcb0 EFLAGS: 00010246
[  107.221305] RAX: 0000000000000000 RBX: ffff88810031fae8 RCX: 1ffff11020a1ffb4
[  107.221951] RDX: 1ffffffff331274c RSI: 1ffff11020a1ffb3 RDI: 0000000000000000
[  107.222437] RBP: ffff8881050ffd60 R08: 0000000000000000 R09: ffffed1020e01140
[  107.222758] R10: ffff888107008a07 R11: 0000000000000000 R12: 1ffff11020a1ff97
[  107.223389] R13: ffffffff99893a60 R14: 0000000000000000 R15: ffff8881050ffd38
[  107.223974] FS:  0000000000000000(0000) GS:ffff8881bf690000(0000) knlGS:0000000000000000
[  107.224321] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  107.224500] CR2: dffffc0000000000 CR3: 00000001348ba000 CR4: 00000000000006f0
[  107.224889] DR0: ffffffff9ba33900 DR1: ffffffff9ba33901 DR2: ffffffff9ba33902
[  107.225499] DR3: ffffffff9ba33903 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  107.226199] Call Trace:
[  107.226461]  <TASK>
[  107.226736]  ? intlog2_test+0xf2/0x220
[  107.227156]  ? __pfx_intlog2_test+0x10/0x10
[  107.227557]  ? __schedule+0x10cc/0x2b60
[  107.228007]  ? __pfx_read_tsc+0x10/0x10
[  107.228311]  ? ktime_get_ts64+0x86/0x230
[  107.228462]  kunit_try_run_case+0x1a5/0x480
[  107.228610]  ? __pfx_kunit_try_run_case+0x10/0x10
[  107.229092]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  107.229533]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  107.230094]  ? __kthread_parkme+0x82/0x180
[  107.230489]  ? preempt_count_sub+0x50/0x80
[  107.230982]  ? __pfx_kunit_try_run_case+0x10/0x10
[  107.231335]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  107.231515]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  107.231883]  kthread+0x337/0x6f0
[  107.232204]  ? trace_preempt_on+0x20/0xc0
[  107.232582]  ? __pfx_kthread+0x10/0x10
[  107.233047]  ? _raw_spin_unlock_irq+0x47/0x80
[  107.233466]  ? calculate_sigpending+0x7b/0xa0
[  107.233968]  ? __pfx_kthread+0x10/0x10
[  107.234212]  ret_from_fork+0x41/0x80
[  107.234348]  ? __pfx_kthread+0x10/0x10
[  107.234482]  ret_from_fork_asm+0x1a/0x30
[  107.234632]  </TASK>
[  107.234976] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details