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Date
July 19, 2025, 11:12 p.m.

Environment
qemu-arm64
qemu-x86_64 

------------[ cut here ]------------
[   27.032716] WARNING: CPU: 0 PID: 415 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   27.038722] Modules linked in:
[   27.039517] CPU: 0 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   27.040688] Tainted: [D]=DIE, [N]=TEST
[   27.041337] Hardware name: linux,dummy-virt (DT)
[   27.041878] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   27.042206] pc : intlog2+0xb8/0x118
[   27.042402] lr : intlog2_test+0x88/0x180
[   27.042593] sp : ffff800082207cd0
[   27.042756] x29: ffff800082207cf0 x28: dfff800000000000 x27: 1ffe000018f7e4a5
[   27.043158] x26: fff00000c7a86820 x25: ffff8000800878a8 x24: 0000000000000000
[   27.043540] x23: dfff800000000000 x22: fff00000c7bf2f18 x21: ffffa3fc8155e790
[   27.043995] x20: ffffa3fc7f9d6740 x19: ffff800080087b08 x18: ffff800080097920
[   27.044372] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   27.044839] x14: 1ffff47f90562280 x13: 0000000000000000 x12: 0000000000000000
[   27.045294] x11: ffff747f90562281 x10: 0000000000000017 x9 : 0000000000000007
[   27.046150] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   27.046580] x5 : 0000000065d0470a x4 : 0000000000000000 x3 : ffffa3fc7cf7d904
[   27.047014] x2 : 0000000000000000 x1 : 0000000000395069 x0 : 0000000000000000
[   27.047470] Call trace:
[   27.047644]  intlog2+0xb8/0x118 (P)
[   27.047848]  intlog2_test+0x88/0x180
[   27.048127]  kunit_try_run_case+0x118/0x31c
[   27.048382]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   27.048681]  kthread+0x3f4/0x51c
[   27.048894]  ret_from_fork+0x10/0x20
[   27.049326] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   26.865598] WARNING: CPU: 1 PID: 416 at lib/math/int_log.c:63 intlog2+0xb8/0x118
[   26.868229] Modules linked in:
[   26.868485] CPU: 1 UID: 0 PID: 416 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   26.868855] Tainted: [D]=DIE, [N]=TEST
[   26.869025] Hardware name: linux,dummy-virt (DT)
[   26.869225] pstate: 82402009 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   26.869821] pc : intlog2+0xb8/0x118
[   26.870235] lr : intlog2_test+0x88/0x180
[   26.870664] sp : ffff800081f97cd0
[   26.871002] x29: ffff800081f97cf0 x28: dfff800000000000 x27: 1ffe000018f65005
[   26.871748] x26: fff00000c7b4c620 x25: ffff8000800878a8 x24: 0000000000000000
[   26.872501] x23: dfff800000000000 x22: fff00000c7b28a18 x21: ffffa37fc275e790
[   26.873235] x20: ffffa37fc0be5820 x19: ffff800080087b08 x18: ffff800080097920
[   26.874274] x17: ffff80008009791c x16: 0000000000000000 x15: 0000000000000001
[   26.875200] x14: 1ffff46ff87a2080 x13: 0000000000000000 x12: 0000000000000000
[   26.875949] x11: ffff746ff87a2081 x10: 0000000000000017 x9 : 0000000000000007
[   26.876704] x8 : 0000000000000000 x7 : ffff80008009792c x6 : 0000000000000014
[   26.877456] x5 : 00000000c2112ec2 x4 : 0000000000000001 x3 : ffffa37fbe18380c
[   26.878405] x2 : 0000000000000000 x1 : 00000000004e148d x0 : 0000000000000000
[   26.879315] Call trace:
[   26.879580]  intlog2+0xb8/0x118 (P)
[   26.879780]  intlog2_test+0x88/0x180
[   26.879963]  kunit_try_run_case+0x118/0x31c
[   26.880163]  kunit_generic_run_threadfn_adapter+0x84/0x104
[   26.880447]  kthread+0x3f4/0x51c
[   26.880839]  ret_from_fork+0x10/0x20
[   26.881211] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   95.240378] WARNING: CPU: 0 PID: 638 at lib/math/int_log.c:63 intlog2+0xd8/0xf8
[   95.243920] Modules linked in:
[   95.244536] CPU: 0 UID: 0 PID: 638 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT 
[   95.244960] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[   95.245170] Hardware name: linux,dummy-virt (DT)
[   95.245371] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   95.245658] pc : intlog2+0xd8/0xf8
[   95.246493] lr : intlog2_test+0xe4/0x200
[   95.246983] sp : ffff800082207c10
[   95.247371] x29: ffff800082207c90 x28: 0000000000000000 x27: 0000000000000000
[   95.248279] x26: 1ffe000018ff9561 x25: 0000000000000000 x24: ffff800082207ce0
[   95.249200] x23: ffff800082207d00 x22: 0000000000000000 x21: 1ffff00010440f82
[   95.249993] x20: ffff9612d4289d80 x19: ffff800080087990 x18: 00000000c2579df6
[   95.250768] x17: 00000000a977f2b2 x16: fff00000c097583c x15: fff00000ff616b08
[   95.251531] x14: 00000000f1f1f1f1 x13: 1ffe00001b48e9cd x12: ffff72c25b023379
[   95.252523] x11: 1ffff2c25b023378 x10: ffff72c25b023378 x9 : ffff9612d1835b5c
[   95.253517] x8 : ffff9612d8119bc3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   95.254273] x5 : ffff700010440f82 x4 : 1ffff00010010f3a x3 : 1ffff2c25a8513b0
[   95.254632] x2 : 1ffff2c25a8513b0 x1 : 0000000000000003 x0 : 0000000000000000
[   95.255073] Call trace:
[   95.255256]  intlog2+0xd8/0xf8 (P)
[   95.255508]  kunit_try_run_case+0x170/0x3f0
[   95.255788]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   95.256122]  kthread+0x328/0x630
[   95.256452]  ret_from_fork+0x10/0x20
[   95.256720] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   28.691667] WARNING: CPU: 1 PID: 414 at lib/math/int_log.c:63 intlog2+0xd0/0xe8
[   28.696116] Modules linked in:
[   28.696347] CPU: 1 UID: 0 PID: 414 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   28.697493] Tainted: [D]=DIE, [N]=TEST
[   28.697906] Hardware name: linux,dummy-virt (DT)
[   28.698415] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   28.699275] pc : intlog2+0xd0/0xe8
[   28.699678] lr : intlog2_test+0xdc/0x1f0
[   28.700151] sp : ffff800080d07c10
[   28.700490] x29: ffff800080d07c90 x28: 0000000000000000 x27: 0000000000000000
[   28.701235] x26: 1ffe000018f19981 x25: fff00000c7914a00 x24: 0000000000000004
[   28.702092] x23: fff00000c7914a00 x22: 0000000000000000 x21: 1ffff000101a0f82
[   28.702945] x20: ffffac85982cfd40 x19: ffff8000800879a0 x18: 000000007b50779c
[   28.703455] x17: 0000000043fe8761 x16: fff00000c089773c x15: 0000000000007eb0
[   28.703788] x14: 1ffe00001b51ecd5 x13: 1ffe000018f22942 x12: ffff7590b3703d39
[   28.704118] x11: 1ffff590b3703d38 x10: ffff7590b3703d38 x9 : dfff800000000000
[   28.704520] x8 : ffffac859b81e9c3 x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[   28.704879] x5 : ffff7000101a0f82 x4 : 1ffff00010010f3c x3 : 1ffff590b3059fa8
[   28.705320] x2 : 1ffff590b3059fa8 x1 : 0000000000000003 x0 : 0000000000000000
[   28.705820] Call trace:
[   28.706001]  intlog2+0xd0/0xe8 (P)
[   28.706223]  kunit_try_run_case+0x144/0x3bc
[   28.706482]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   28.706749]  kthread+0x37c/0x67c
[   28.706970]  ret_from_fork+0x10/0x20
[   28.707281] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[   31.234887] WARNING: CPU: 1 PID: 415 at lib/math/int_log.c:63 intlog2+0xd4/0xec
[   31.238600] Modules linked in:
[   31.239397] CPU: 1 UID: 0 PID: 415 Comm: kunit_try_catch Tainted: G      D          N  6.16.0-rc6 #1 PREEMPT 
[   31.240681] Tainted: [D]=DIE, [N]=TEST
[   31.241082] Hardware name: linux,dummy-virt (DT)
[   31.241949] pstate: 12402009 (nzcV daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
[   31.242829] pc : intlog2+0xd4/0xec
[   31.243328] lr : intlog2_test+0xdc/0x1e0
[   31.243812] sp : ffff800080e97bf0
[   31.244219] x29: ffff800080e97bf0 x28: 0000000000000000 x27: 0000000000000000
[   31.244795] x26: 0000000000000000 x25: fff00000c7a10000 x24: fff00000c7a10000
[   31.245161] x23: 0000000000000000 x22: ffffa9252d1e87b8 x21: ffffa9252bb3fba0
[   31.246167] x20: 1ffff000101d2f86 x19: ffff800080087a00 x18: 00000000000010d8
[   31.246999] x17: 00000000000010e0 x16: 00000000000010e8 x15: 00000000000010f0
[   31.247809] x14: 00000000000010f8 x13: ffff7524a61fd129 x12: 1ffff524a61fd128
[   31.248632] x11: 1ffff524a61fd128 x10: ffff7524a61fd128 x9 : dfff800000000000
[   31.249492] x8 : 0000000000000001 x7 : ffff7524a61fd129 x6 : ffffa92530fe8943
[   31.249995] x5 : 0000000041b58ab3 x4 : ffff7000101d2f86 x3 : 1ffff524a5767f74
[   31.250366] x2 : 1ffff524a5767f74 x1 : 0000000000000003 x0 : 0000000000000000
[   31.250985] Call trace:
[   31.251307]  intlog2+0xd4/0xec (P)
[   31.251732]  kunit_try_run_case+0x144/0x3bc
[   31.252194]  kunit_generic_run_threadfn_adapter+0x80/0xec
[   31.252748]  kthread+0x3f0/0x744
[   31.253151]  ret_from_fork+0x10/0x20
[   31.253773] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

------------[ cut here ]------------
[  109.928742] WARNING: CPU: 0 PID: 656 at lib/math/int_log.c:63 intlog2+0xdf/0x110
[  109.929198] Modules linked in:
[  109.929546] CPU: 0 UID: 0 PID: 656 Comm: kunit_try_catch Tainted: G    B D          N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[  109.930070] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  109.930279] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  109.930776] RIP: 0010:intlog2+0xdf/0x110
[  109.931030] Code: 29 96 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 bf c7 55 ff 8b 45 e4 eb
[  109.931930] RSP: 0000:ffff888100cf7cb0 EFLAGS: 00010246
[  109.932185] RAX: 0000000000000000 RBX: ffff88810039fae8 RCX: 1ffff1102019efb4
[  109.932576] RDX: 1ffffffff2c52e40 RSI: 1ffff1102019efb3 RDI: 0000000000000000
[  109.932991] RBP: ffff888100cf7d60 R08: 0000000000000000 R09: ffffed10204f9dc0
[  109.933485] R10: ffff8881027cee07 R11: 0000000000000000 R12: 1ffff1102019ef97
[  109.933845] R13: ffffffff96297200 R14: 0000000000000000 R15: ffff888100cf7d38
[  109.934174] FS:  0000000000000000(0000) GS:ffff8881c2c72000(0000) knlGS:0000000000000000
[  109.934556] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  109.934828] CR2: ffff88815a926fe0 CR3: 00000001314bc000 CR4: 00000000000006f0
[  109.935148] DR0: ffffffff98452440 DR1: ffffffff98452441 DR2: ffffffff98452443
[  109.935503] DR3: ffffffff98452445 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  109.935809] Call Trace:
[  109.935952]  <TASK>
[  109.936055]  ? intlog2_test+0xf2/0x220
[  109.936290]  ? __pfx_intlog2_test+0x10/0x10
[  109.936579]  ? __schedule+0x10cc/0x2b60
[  109.936841]  ? __pfx_read_tsc+0x10/0x10
[  109.937034]  ? ktime_get_ts64+0x86/0x230
[  109.937264]  kunit_try_run_case+0x1a5/0x480
[  109.937549]  ? __pfx_kunit_try_run_case+0x10/0x10
[  109.937844]  ? _raw_spin_lock_irqsave+0xa1/0x100
[  109.938089]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  109.938311]  ? __kthread_parkme+0x82/0x180
[  109.938638]  ? preempt_count_sub+0x50/0x80
[  109.938823]  ? __pfx_kunit_try_run_case+0x10/0x10
[  109.939128]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  109.939489]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  109.939785]  kthread+0x337/0x6f0
[  109.939991]  ? trace_preempt_on+0x20/0xc0
[  109.940149]  ? __pfx_kthread+0x10/0x10
[  109.940298]  ? _raw_spin_unlock_irq+0x47/0x80
[  109.941775]  ? calculate_sigpending+0x7b/0xa0
[  109.942424]  ? __pfx_kthread+0x10/0x10
[  109.943122]  ret_from_fork+0x116/0x1d0
[  109.943959]  ? __pfx_kthread+0x10/0x10
[  109.944241]  ret_from_fork_asm+0x1a/0x30
[  109.944802]  </TASK>
[  109.944982] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details