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Date
July 18, 2025, 1:09 p.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   38.020605] WARNING: lib/math/int_log.c:63 at intlog2+0xb8/0x118, CPU#0: kunit_try_catch/448
[   38.021979] Modules linked in:
[   38.022224] CPU: 0 UID: 0 PID: 448 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6-next-20250718 #1 PREEMPT 
[   38.023225] Tainted: [D]=DIE, [N]=TEST
[   38.023629] Hardware name: linux,dummy-virt (DT)
[   38.023837] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   38.024198] pc : intlog2+0xb8/0x118
[   38.024437] lr : intlog2_test+0x88/0x180
[   38.024899] sp : ffff800082227cd0
[   38.025289] x29: ffff800082227cf0 x28: dfff800000000000 x27: 1ffe0000193ec6f5
[   38.026092] x26: fff00000c9f46ba0 x25: ffff800080087808 x24: 0000000000000000
[   38.026866] x23: dfff800000000000 x22: fff00000c9f641a0 x21: ffff91aec7d5d590
[   38.027540] x20: ffff91aec619b9e0 x19: ffff800080087b00 x18: ffff800080097940
[   38.027904] x17: ffff80008009793c x16: 0000000000000000 x15: 0000000000000001
[   38.028340] x14: 1ffff235d9269780 x13: 0000000000000000 x12: 0000000000000000
[   38.028694] x11: ffff7235d9269781 x10: 0000000000000017 x9 : 0000000000000007
[   38.029049] x8 : 0000000000000000 x7 : ffff80008009794c x6 : 0000000000000014
[   38.029823] x5 : 00000000c8b5c647 x4 : 0000000000000000 x3 : ffff91aec378863c
[   38.030655] x2 : 0000000000000000 x1 : 000000000030dbff x0 : 0000000000000000
[   38.031701] Call trace:
[   38.032003]  intlog2+0xb8/0x118 (P)
[   38.032396]  intlog2_test+0x88/0x180
[   38.032780]  kunit_try_run_case+0x118/0x31c
[   38.033220]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   38.033767]  kthread+0x3f4/0x51c
[   38.034131]  ret_from_fork+0x10/0x20
[   38.034640] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   38.872239] WARNING: lib/math/int_log.c:63 at intlog2+0xb8/0x118, CPU#0: kunit_try_catch/449
[   38.874986] Modules linked in:
[   38.875218] CPU: 0 UID: 0 PID: 449 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6-next-20250718 #1 PREEMPT 
[   38.875620] Tainted: [D]=DIE, [N]=TEST
[   38.875859] Hardware name: linux,dummy-virt (DT)
[   38.876358] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   38.877140] pc : intlog2+0xb8/0x118
[   38.877581] lr : intlog2_test+0x88/0x180
[   38.877998] sp : ffff800080fd7cd0
[   38.878345] x29: ffff800080fd7cf0 x28: dfff800000000000 x27: 1ffe0000193a86f5
[   38.879096] x26: fff00000c9d602a0 x25: ffff800080087808 x24: 0000000000000000
[   38.879890] x23: dfff800000000000 x22: fff00000c9d441a0 x21: ffff93224c36d450
[   38.880712] x20: ffff93224a7aa880 x19: ffff800080087b00 x18: ffff800080097930
[   38.881494] x17: ffff80008009792c x16: 0000000000000000 x15: 0000000000000001
[   38.882245] x14: 1ffff26449b2b580 x13: 0000000000000000 x12: 0000000000000000
[   38.882802] x11: ffff726449b2b581 x10: 0000000000000017 x9 : 0000000000000007
[   38.883163] x8 : 0000000000000000 x7 : ffff80008009793c x6 : 0000000000000014
[   38.883519] x5 : 000000001885ef65 x4 : 0000000000000000 x3 : ffff932247d8df20
[   38.884261] x2 : 0000000000000000 x1 : 000000000033e263 x0 : 0000000000000000
[   38.885192] Call trace:
[   38.885533]  intlog2+0xb8/0x118 (P)
[   38.885932]  intlog2_test+0x88/0x180
[   38.886314]  kunit_try_run_case+0x118/0x31c
[   38.886752]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   38.887287]  kthread+0x3f4/0x51c
[   38.887641]  ret_from_fork+0x10/0x20
[   38.888180] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   40.302542] WARNING: lib/math/int_log.c:63 at intlog2+0xd0/0xe8, CPU#0: kunit_try_catch/448
[   40.303224] Modules linked in:
[   40.303677] CPU: 0 UID: 0 PID: 448 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6-next-20250718 #1 PREEMPT 
[   40.304907] Tainted: [D]=DIE, [N]=TEST
[   40.305338] Hardware name: linux,dummy-virt (DT)
[   40.305912] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   40.306628] pc : intlog2+0xd0/0xe8
[   40.307093] lr : intlog2_test+0xdc/0x1f0
[   40.307543] sp : ffff800081fb7c10
[   40.307898] x29: ffff800081fb7c90 x28: 0000000000000000 x27: 0000000000000000
[   40.308794] x26: 1ffe000019313a01 x25: fff00000c9c58000 x24: 0000000000000004
[   40.309714] x23: fff00000c9c58000 x22: 0000000000000000 x21: 1ffff000103f6f82
[   40.310464] x20: ffff958d6e095b60 x19: ffff800080087990 x18: 000000009a4d44f0
[   40.311207] x17: 0000000000000000 x16: fff00000da8ec668 x15: 0000000000007eb0
[   40.311796] x14: 1ffff0001002ce6a x13: 1ffe0000191a0a64 x12: ffff72b1ae2cdf49
[   40.312129] x11: 1ffff2b1ae2cdf48 x10: ffff72b1ae2cdf48 x9 : dfff800000000000
[   40.313069] x8 : ffff958d7166fa43 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   40.313807] x5 : ffff7000103f6f82 x4 : 1ffff00010010f3b x3 : 1ffff2b1adc12b6c
[   40.314535] x2 : 1ffff2b1adc12b6c x1 : 0000000000000003 x0 : 0000000000000000
[   40.315273] Call trace:
[   40.315567]  intlog2+0xd0/0xe8 (P)
[   40.315955]  kunit_try_run_case+0x144/0x3bc
[   40.316208]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   40.316447]  kthread+0x37c/0x67c
[   40.316617]  ret_from_fork+0x10/0x20
[   40.316977] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  110.907055] WARNING: lib/math/int_log.c:63 at intlog2+0xd8/0xf8, CPU#1: kunit_try_catch/671
[  110.907965] Modules linked in:
[  110.908278] CPU: 1 UID: 0 PID: 671 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6-next-20250718 #1 PREEMPT 
[  110.908862] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  110.909408] Hardware name: linux,dummy-virt (DT)
[  110.909644] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[  110.909994] pc : intlog2+0xd8/0xf8
[  110.910238] lr : intlog2_test+0xe4/0x200
[  110.910487] sp : ffff800082297c10
[  110.910682] x29: ffff800082297c90 x28: 0000000000000000 x27: 0000000000000000
[  110.911101] x26: 1ffe0000193634e1 x25: 0000000000000000 x24: ffff800082297ce0
[  110.911510] x23: ffff800082297d00 x22: 0000000000000000 x21: 1ffff00010452f82
[  110.911970] x20: ffffa0dee1e41ce0 x19: ffff800080087990 x18: 00000000066d908d
[  110.912585] x17: 0000000074a81e9f x16: 00000000b2f6124c x15: 0000000095987ca1
[  110.913000] x14: 000000005c4a72db x13: 0000000000000005 x12: ffff741bdcba8b89
[  110.913473] x11: 1ffff41bdcba8b88 x10: ffff741bdcba8b88 x9 : ffffa0dedf457b84
[  110.913849] x8 : ffffa0dee5d45c43 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[  110.914316] x5 : ffff700010452f82 x4 : 1ffff00010010f3b x3 : 1ffff41bdc3c839c
[  110.914677] x2 : 1ffff41bdc3c839c x1 : 0000000000000003 x0 : 0000000000000000
[  110.915133] Call trace:
[  110.915305]  intlog2+0xd8/0xf8 (P)
[  110.915532]  kunit_try_run_case+0x170/0x3f0
[  110.915994]  kunit_generic_run_threadfn_adapter+0x88/0x100
[  110.916271]  kthread+0x328/0x630
[  110.916500]  ret_from_fork+0x10/0x20
[  110.916747] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   44.199972] WARNING: lib/math/int_log.c:63 at intlog2+0xd4/0xec, CPU#1: kunit_try_catch/447
[   44.204678] Modules linked in:
[   44.205310] CPU: 1 UID: 0 PID: 447 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6-next-20250718 #1 PREEMPT 
[   44.206131] Tainted: [D]=DIE, [N]=TEST
[   44.206323] Hardware name: linux,dummy-virt (DT)
[   44.206528] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   44.206828] pc : intlog2+0xd4/0xec
[   44.207012] lr : intlog2_test+0xdc/0x1e0
[   44.207203] sp : ffff800080e27bf0
[   44.207364] x29: ffff800080e27bf0 x28: 0000000000000000 x27: 0000000000000000
[   44.208759] x26: 0000000000000000 x25: fff00000c9d0b780 x24: fff00000c9d0b780
[   44.209854] x23: 0000000000000000 x22: ffff9591ae1da9f8 x21: ffff9591acb05900
[   44.210672] x20: 1ffff000101c4f86 x19: ffff800080087a00 x18: 00000000000010d8
[   44.211496] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   44.212399] x14: 00000000000010f8 x13: ffff72b236413139 x12: 1ffff2b236413138
[   44.213261] x11: 1ffff2b236413138 x10: ffff72b236413138 x9 : dfff800000000000
[   44.214053] x8 : 0000000000000001 x7 : ffff72b236413139 x6 : ffff9591b20989c3
[   44.214869] x5 : 0000000041b58ab3 x4 : ffff7000101c4f86 x3 : 1ffff2b235960b20
[   44.215703] x2 : 1ffff2b235960b20 x1 : 0000000000000003 x0 : 0000000000000000
[   44.216600] Call trace:
[   44.216907]  intlog2+0xd4/0xec (P)
[   44.217292]  kunit_try_run_case+0x144/0x3bc
[   44.217755]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   44.218298]  kthread+0x3f0/0x744
[   44.218680]  ret_from_fork+0x10/0x20
[   44.219156] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  121.163341] WARNING: lib/math/int_log.c:63 at intlog2+0xdf/0x110, CPU#1: kunit_try_catch/688
[  121.163736] Modules linked in:
[  121.163993] CPU: 1 UID: 0 PID: 688 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) 
[  121.164766] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  121.165310] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  121.165687] RIP: 0010:intlog2+0xdf/0x110
[  121.166193] Code: c9 b5 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 52 17 91 02 90 <0f> 0b 90 31 c0 e9 47 17 91 02 89 45 e4 e8 cf 5b 55 ff 8b 45 e4 eb
[  121.167385] RSP: 0000:ffff888106057cb0 EFLAGS: 00010246
[  121.168155] RAX: 0000000000000000 RBX: ffff8881003c7ae8 RCX: 1ffff11020c0afb4
[  121.168705] RDX: 1ffffffff6b93504 RSI: 1ffff11020c0afb3 RDI: 0000000000000000
[  121.169378] RBP: ffff888106057d60 R08: 0000000000000000 R09: ffffed10202d4ac0
[  121.169652] R10: ffff8881016a5607 R11: 0000000000000000 R12: 1ffff11020c0af97
[  121.169875] R13: ffffffffb5c9a820 R14: 0000000000000000 R15: ffff888106057d38
[  121.170561] FS:  0000000000000000(0000) GS:ffff8881a3313000(0000) knlGS:0000000000000000
[  121.171306] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  121.171859] CR2: ffff88815a93e000 CR3: 000000002f0bc000 CR4: 00000000000006f0
[  121.172443] DR0: ffffffffb7eb3544 DR1: ffffffffb7eb3549 DR2: ffffffffb7eb354a
[  121.172658] DR3: ffffffffb7eb354b DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  121.173221] Call Trace:
[  121.173472]  <TASK>
[  121.173674]  ? intlog2_test+0xf2/0x220
[  121.174171]  ? __pfx_intlog2_test+0x10/0x10
[  121.174646]  ? sysvec_apic_timer_interrupt+0x50/0x90
[  121.175223]  ? trace_hardirqs_on+0x37/0xe0
[  121.175461]  ? __pfx_read_tsc+0x10/0x10
[  121.175602]  ? ktime_get_ts64+0x86/0x230
[  121.175742]  kunit_try_run_case+0x1a5/0x480
[  121.176358]  ? __pfx_kunit_try_run_case+0x10/0x10
[  121.177019]  ? queued_spin_lock_slowpath+0x116/0xb40
[  121.177483]  ? __kthread_parkme+0x82/0x180
[  121.177877]  ? preempt_count_sub+0x50/0x80
[  121.178349]  ? __pfx_kunit_try_run_case+0x10/0x10
[  121.178758]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  121.179378]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  121.179582]  kthread+0x337/0x6f0
[  121.179703]  ? trace_preempt_on+0x20/0xc0
[  121.180029]  ? __pfx_kthread+0x10/0x10
[  121.180391]  ? _raw_spin_unlock_irq+0x47/0x80
[  121.180785]  ? calculate_sigpending+0x7b/0xa0
[  121.181388]  ? __pfx_kthread+0x10/0x10
[  121.181749]  ret_from_fork+0x116/0x1d0
[  121.182017]  ? __pfx_kthread+0x10/0x10
[  121.182162]  ret_from_fork_asm+0x1a/0x30
[  121.182311]  </TASK>
[  121.182439] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details