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Date
June 17, 2025, 3:40 p.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   35.764152] WARNING: CPU: 0 PID: 417 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   35.765003] Modules linked in:
[   35.765397] CPU: 0 UID: 0 PID: 417 Comm: kunit_try_catch Tainted: G      D          N  6.15.3-rc1 #1 PREEMPT 
[   35.765962] Tainted: [D]=DIE, [N]=TEST
[   35.766209] Hardware name: linux,dummy-virt (DT)
[   35.766842] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   35.767435] pc : intlog2+0xd4/0xec
[   35.767664] lr : intlog2_test+0xdc/0x1e0
[   35.767857] sp : ffff800081f97bf0
[   35.768006] x29: ffff800081f97bf0 x28: 0000000000000000 x27: 0000000000000000
[   35.768442] x26: 0000000000000000 x25: fff00000c7971280 x24: fff00000c7971280
[   35.768987] x23: 0000000000000000 x22: ffff922d03f2a738 x21: ffff922d028ec0e0
[   35.770001] x20: 1ffff000103f2f86 x19: ffff800080087a10 x18: 00000000000010d8
[   35.770848] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   35.771457] x14: 00000000000010f8 x13: ffff7245a0f86321 x12: 1ffff245a0f86320
[   35.772061] x11: 1ffff245a0f86320 x10: ffff7245a0f86320 x9 : dfff800000000000
[   35.772634] x8 : 0000000000000001 x7 : ffff7245a0f86321 x6 : ffff922d07c31903
[   35.773169] x5 : 0000000041b58ab3 x4 : ffff7000103f2f86 x3 : 1ffff245a051d81c
[   35.773627] x2 : 1ffff245a051d81c x1 : 0000000000000003 x0 : 0000000000000000
[   35.774361] Call trace:
[   35.774528]  intlog2+0xd4/0xec (P)
[   35.775197]  kunit_try_run_case+0x144/0x3bc
[   35.775619]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   35.776008]  kthread+0x3f0/0x744
[   35.776239]  ret_from_fork+0x10/0x20
[   35.776639] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  106.955283] WARNING: CPU: 1 PID: 640 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[  106.959237] Modules linked in:
[  106.960332] CPU: 1 UID: 0 PID: 640 Comm: kunit_try_catch Tainted: G    B D          N  6.15.3-rc1 #1 PREEMPT 
[  106.961249] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  106.961772] Hardware name: linux,dummy-virt (DT)
[  106.962449] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[  106.962886] pc : intlog2+0xd8/0xf8
[  106.963200] lr : intlog2_test+0xe4/0x200
[  106.963478] sp : ffff800082467c10
[  106.963792] x29: ffff800082467c90 x28: 0000000000000000 x27: 0000000000000000
[  106.964713] x26: 1ffe000019833261 x25: 0000000000000000 x24: ffff800082467ce0
[  106.965873] x23: ffff800082467d00 x22: 0000000000000000 x21: 1ffff0001048cf82
[  106.966407] x20: ffffafe9e6434f40 x19: ffff800080087990 x18: 000000003aab2abc
[  106.967058] x17: 00000000ebdbacc7 x16: fff00000c096e03c x15: fff00000ff616b08
[  106.967915] x14: 00000000f1f1f1f1 x13: 1ffe00001b48f61d x12: ffff75fd3d439b71
[  106.968799] x11: 1ffff5fd3d439b70 x10: ffff75fd3d439b70 x9 : ffffafe9e3a13904
[  106.969682] x8 : ffffafe9ea1cdb83 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[  106.970511] x5 : ffff70001048cf82 x4 : 1ffff00010010f3a x3 : 1ffff5fd3cc869e8
[  106.971262] x2 : 1ffff5fd3cc869e8 x1 : 0000000000000003 x0 : 0000000000000000
[  106.971790] Call trace:
[  106.972028]  intlog2+0xd8/0xf8 (P)
[  106.972380]  kunit_try_run_case+0x170/0x3f0
[  106.972653]  kunit_generic_run_threadfn_adapter+0x88/0x100
[  106.974850]  kthread+0x328/0x630
[  106.975215]  ret_from_fork+0x10/0x20
[  106.975744] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   29.857329] WARNING: CPU: 0 PID: 416 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   29.858349] Modules linked in:
[   29.858957] CPU: 0 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.15.3-rc1 #1 PREEMPT 
[   29.860056] Tainted: [D]=DIE, [N]=TEST
[   29.860553] Hardware name: linux,dummy-virt (DT)
[   29.861020] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   29.861728] pc : intlog2+0xb8/0x118
[   29.862388] lr : intlog2_test+0x88/0x180
[   29.863022] sp : ffff800082157cd0
[   29.863331] x29: ffff800082157cf0 x28: dfff800000000000 x27: 1ffe000018f52945
[   29.864152] x26: fff00000c3dbb2a0 x25: ffff8000800878a8 x24: 0000000000000000
[   29.865040] x23: dfff800000000000 x22: fff00000c7a95418 x21: ffff9f2721abcd10
[   29.865748] x20: ffff9f271ffa1dc0 x19: ffff800080087b08 x18: ffff800080097930
[   29.866559] x17: ffff80008009792c x16: 0000000000000000 x15: 0000000000000001
[   29.867292] x14: 1ffff3e4e45ffe78 x13: 0000000000000000 x12: 0000000000000000
[   29.868286] x11: ffff73e4e45ffe79 x10: 0000000000000017 x9 : 0000000000000007
[   29.869017] x8 : 0000000000000000 x7 : ffff80008009793c x6 : 0000000000000014
[   29.869710] x5 : 000000001c3bac1b x4 : 0000000000000000 x3 : ffff9f271d578950
[   29.870460] x2 : 0000000000000000 x1 : 00000000005cd373 x0 : 0000000000000000
[   29.871177] Call trace:
[   29.871456]  intlog2+0xb8/0x118 (P)
[   29.871930]  intlog2_test+0x88/0x180
[   29.872654]  kunit_try_run_case+0x118/0x31c
[   29.872991]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   29.873562]  kthread+0x3f4/0x518
[   29.873935]  ret_from_fork+0x10/0x20
[   29.874444] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   29.620027] WARNING: CPU: 1 PID: 418 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   29.624016] Modules linked in:
[   29.624482] CPU: 1 UID: 0 PID: 418 Comm: kunit_try_catch Tainted: G      D          N  6.15.3-rc1 #1 PREEMPT 
[   29.626232] Tainted: [D]=DIE, [N]=TEST
[   29.626609] Hardware name: linux,dummy-virt (DT)
[   29.627252] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   29.627802] pc : intlog2+0xb8/0x118
[   29.628245] lr : intlog2_test+0x88/0x180
[   29.628674] sp : ffff800081f87cd0
[   29.629039] x29: ffff800081f87cf0 x28: dfff800000000000 x27: 1ffe000018f47b95
[   29.629974] x26: fff00000c79483a0 x25: ffff8000800878a8 x24: 0000000000000000
[   29.631069] x23: dfff800000000000 x22: fff00000c7a3e698 x21: ffffa3502d4acd10
[   29.631886] x20: ffffa3502b991e00 x19: ffff800080087b08 x18: ffff800080097930
[   29.632634] x17: ffff80008009792c x16: 0000000000000000 x15: 0000000000000001
[   29.633857] x14: 1ffff46a05d3e078 x13: 0000000000000000 x12: 0000000000000000
[   29.634628] x11: ffff746a05d3e079 x10: 0000000000000017 x9 : 0000000000000007
[   29.635395] x8 : 0000000000000000 x7 : ffff80008009793c x6 : 0000000000000014
[   29.636191] x5 : fff00000daa16360 x4 : 0000000000000001 x3 : ffffa35028f732b4
[   29.636806] x2 : 0000000000000000 x1 : 000000000047f374 x0 : 0000000000000000
[   29.637646] Call trace:
[   29.638195]  intlog2+0xb8/0x118 (P)
[   29.638699]  intlog2_test+0x88/0x180
[   29.639070]  kunit_try_run_case+0x118/0x31c
[   29.639595]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   29.640154]  kthread+0x3f4/0x518
[   29.640642]  ret_from_fork+0x10/0x20
[   29.641249] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   45.901931] WARNING: CPU: 0 PID: 418 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   45.907073] Modules linked in:
[   45.908751] CPU: 0 UID: 0 PID: 418 Comm: kunit_try_catch Tainted: G      D          N  6.15.3-rc1 #1 PREEMPT 
[   45.910512] Tainted: [D]=DIE, [N]=TEST
[   45.911060] Hardware name: linux,dummy-virt (DT)
[   45.911869] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   45.912595] pc : intlog2+0xd0/0xe8
[   45.913103] lr : intlog2_test+0xdc/0x1f0
[   45.913606] sp : ffff800082097c10
[   45.914143] x29: ffff800082097c90 x28: 0000000000000000 x27: 0000000000000000
[   45.915269] x26: 1ffe000018f4bac1 x25: fff00000c7a4a500 x24: 0000000000000004
[   45.916375] x23: fff00000c7a4a500 x22: 0000000000000000 x21: 1ffff00010412f82
[   45.917029] x20: ffffaa1a9b47bfc0 x19: ffff8000800879b0 x18: 0000000000009000
[   45.918082] x17: fff00000c0361288 x16: fff00000c089563c x15: fff00000ff80eb08
[   45.919454] x14: 1ffe00001b52691d x13: 1ffe000018f494a2 x12: ffff754353d1ef31
[   45.920402] x11: 1ffff54353d1ef30 x10: ffff754353d1ef30 x9 : dfff800000000000
[   45.921254] x8 : ffffaa1a9e8f7983 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   45.922265] x5 : ffff700010412f82 x4 : 1ffff00010010f3e x3 : 1ffff5435368f7f8
[   45.923058] x2 : 1ffff5435368f7f8 x1 : 0000000000000003 x0 : 0000000000000000
[   45.923813] Call trace:
[   45.924289]  intlog2+0xd0/0xe8 (P)
[   45.924796]  kunit_try_run_case+0x144/0x3bc
[   45.925515]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   45.926127]  kthread+0x37c/0x67c
[   45.926592]  ret_from_fork+0x10/0x20
[   45.927186] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  152.584164] WARNING: CPU: 1 PID: 658 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  152.585464] Modules linked in:
[  152.586540] CPU: 1 UID: 0 PID: 658 Comm: kunit_try_catch Tainted: G    B D          N  6.15.3-rc1 #1 PREEMPT(voluntary) 
[  152.587444] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  152.588803] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  152.589713] RIP: 0010:intlog2+0xdf/0x110
[  152.590524] Code: a9 9b 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 41 81 02 90 <0f> 0b 90 31 c0 e9 c7 41 81 02 89 45 e4 e8 3f d6 56 ff 8b 45 e4 eb
[  152.592339] RSP: 0000:ffff8881046ffcb0 EFLAGS: 00010246
[  152.593114] RAX: 0000000000000000 RBX: ffff88810031fae8 RCX: 1ffff110208dffb4
[  152.593876] RDX: 1ffffffff37525ac RSI: 1ffff110208dffb3 RDI: 0000000000000000
[  152.594785] RBP: ffff8881046ffd60 R08: 0000000000000000 R09: ffffed1020950a40
[  152.595749] R10: ffff888104a85207 R11: 0000000000000000 R12: 1ffff110208dff97
[  152.596712] R13: ffffffff9ba92d60 R14: 0000000000000000 R15: ffff8881046ffd38
[  152.597974] FS:  0000000000000000(0000) GS:ffff8881bd593000(0000) knlGS:0000000000000000
[  152.598716] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  152.599373] CR2: dffffc0000000000 CR3: 000000006b8ba000 CR4: 00000000000006f0
[  152.599945] DR0: ffffffff9dc30900 DR1: ffffffff9dc30901 DR2: ffffffff9dc30903
[  152.600866] DR3: ffffffff9dc30905 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  152.602074] Call Trace:
[  152.602614]  <TASK>
[  152.602956]  ? intlog2_test+0xf2/0x220
[  152.603710]  ? __pfx_intlog2_test+0x10/0x10
[  152.604422]  ? __schedule+0x10cc/0x2b60
[  152.605308]  ? __pfx_read_tsc+0x10/0x10
[  152.605800]  ? ktime_get_ts64+0x86/0x230
[  152.606790]  kunit_try_run_case+0x1a5/0x480
[  152.607525]  ? __pfx_kunit_try_run_case+0x10/0x10
[  152.607917]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  152.608826]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  152.609606]  ? __kthread_parkme+0x82/0x180
[  152.609965]  ? preempt_count_sub+0x50/0x80
[  152.611251]  ? __pfx_kunit_try_run_case+0x10/0x10
[  152.611720]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  152.612755]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  152.613539]  kthread+0x337/0x6f0
[  152.614634]  ? trace_preempt_on+0x20/0xc0
[  152.614941]  ? __pfx_kthread+0x10/0x10
[  152.615849]  ? _raw_spin_unlock_irq+0x47/0x80
[  152.616775]  ? calculate_sigpending+0x7b/0xa0
[  152.617263]  ? __pfx_kthread+0x10/0x10
[  152.617852]  ret_from_fork+0x41/0x80
[  152.618699]  ? __pfx_kthread+0x10/0x10
[  152.619247]  ret_from_fork_asm+0x1a/0x30
[  152.620006]  </TASK>
[  152.620542] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details