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Date
June 19, 2025, 12:07 p.m.

Environment
qemu-armv7 

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[   59.006413] WARNING: mm/highmem.c:622 at kunmap_local_indexed+0x198/0x1a4, CPU#1: uffd-unit-tests/636
[   59.010791] Modules linked in: nfnetlink ip_tables x_tables
[   59.012890] CPU: 1 UID: 0 PID: 636 Comm: uffd-unit-tests Not tainted 6.16.0-rc2-next-20250619 #1 NONE 
[   59.013284] Hardware name: Generic DT based system
[   59.014227] Call trace: 
[   59.014811]  unwind_backtrace from show_stack+0x10/0x14
[   59.015478]  show_stack from dump_stack_lvl+0x50/0x5c
[   59.015847]  dump_stack_lvl from __warn+0xf0/0x1f8
[   59.016106]  __warn from warn_slowpath_fmt+0xa8/0x174
[   59.016509]  warn_slowpath_fmt from kunmap_local_indexed+0x198/0x1a4
[   59.016832]  kunmap_local_indexed from move_pages_pte+0xc40/0xf48
[   59.017018]  move_pages_pte from move_pages+0x488/0x680
[   59.017498]  move_pages from userfaultfd_ioctl+0x8e0/0x1dfc
[   59.017991]  userfaultfd_ioctl from sys_ioctl+0xd24/0xd90
[   59.018299]  sys_ioctl from ret_fast_syscall+0x0/0x5c
[   59.019606] Exception stack(0xf9e85fa8 to 0xf9e85ff0)
[   59.020429] 5fa0:                   00001000 00000005 00000005 c028aa05 b2d4ecd8 b2d4ecc8
[   59.020803] 5fc0: 00001000 00000005 b2d4ece0 00000036 b2d4ed84 b2d4ed50 b2d4ed7c b2d4ed58
[   59.021873] 5fe0: 00000036 b2d4ecb0 b6e01861 b6d6f736
[   59.022404] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

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[   90.383399] WARNING: mm/highmem.c:622 at kunmap_local_indexed+0x178/0x17c, CPU#1: uffd-unit-tests/634
[   90.387080] Modules linked in: fuse
[   90.389405] CPU: 1 UID: 0 PID: 634 Comm: uffd-unit-tests Not tainted 6.16.0-rc2-next-20250619 #1 NONE 
[   90.389867] Hardware name: Generic DT based system
[   90.390246] Call trace: 
[   90.390474]  unwind_backtrace from show_stack+0x18/0x1c
[   90.390922]  show_stack from dump_stack_lvl+0x6c/0x8c
[   90.391271]  dump_stack_lvl from __warn+0x98/0x14c
[   90.391555]  __warn from warn_slowpath_fmt+0x18c/0x194
[   90.392587]  warn_slowpath_fmt from kunmap_local_indexed+0x178/0x17c
[   90.393058]  kunmap_local_indexed from move_pages+0x83c/0x19c8
[   90.393463]  move_pages from userfaultfd_ioctl+0x12d4/0x2070
[   90.393879]  userfaultfd_ioctl from sys_ioctl+0x558/0xd24
[   90.394427]  sys_ioctl from ret_fast_syscall+0x0/0x1c
[   90.394925] Exception stack(0xf9fc5fa8 to 0xf9fc5ff0)
[   90.395594] 5fa0:                   00001000 00000000 00000005 c028aa05 b2dbecd8 b2dbecb0
[   90.395928] 5fc0: 00001000 00000000 00000005 00000036 8010aa01 00510000 b2dbed80 00000012
[   90.396914] 5fe0: 00000036 b2dbec98 b6e71861 b6ddf736
[   90.398041] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details