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Date
May 12, 2025, 11:48 a.m.

Environment
qemu-armv7
x15 

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[   56.052750] WARNING: CPU: 1 PID: 578 at mm/highmem.c:622 kunmap_local_indexed+0x198/0x1a4
[   56.057317] Modules linked in: nfnetlink ip_tables x_tables
[   56.059453] CPU: 1 UID: 0 PID: 578 Comm: uffd-unit-tests Tainted: G        W           6.15.0-rc6-next-20250512 #1 NONE 
[   56.060148] Tainted: [W]=WARN
[   56.060363] Hardware name: Generic DT based system
[   56.060708] Call trace: 
[   56.062531]  unwind_backtrace from show_stack+0x10/0x14
[   56.063662]  show_stack from dump_stack_lvl+0x50/0x5c
[   56.064696]  dump_stack_lvl from __warn+0xd8/0x1e0
[   56.065415]  __warn from warn_slowpath_fmt+0xa8/0x174
[   56.066222]  warn_slowpath_fmt from kunmap_local_indexed+0x198/0x1a4
[   56.067148]  kunmap_local_indexed from move_pages_pte+0xd14/0xe34
[   56.067989]  move_pages_pte from move_pages+0x428/0x5bc
[   56.068219]  move_pages from userfaultfd_ioctl+0x900/0x1ec0
[   56.068416]  userfaultfd_ioctl from sys_ioctl+0xd24/0xd90
[   56.069414]  sys_ioctl from ret_fast_syscall+0x0/0x5c
[   56.070295] Exception stack(0xf5b79fa8 to 0xf5b79ff0)
[   56.070899] 9fa0:                   00001000 00000005 00000005 c028aa05 b2deecd8 b2deecc8
[   56.071319] 9fc0: 00001000 00000005 b2deece0 00000036 b2deed84 b2deed50 b2deed7c b2deed58
[   56.072288] 9fe0: 00000036 b2deecb0 b6ea1861 b6e0f736
[   56.072963] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

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[   37.932892] WARNING: CPU: 1 PID: 582 at mm/highmem.c:622 kunmap_local_indexed+0x178/0x17c
[   37.935078] Modules linked in: fuse
[   37.935983] CPU: 1 UID: 0 PID: 582 Comm: uffd-unit-tests Not tainted 6.15.0-rc6-next-20250512 #1 NONE 
[   37.937125] Hardware name: Generic DT based system
[   37.937798] Call trace: 
[   37.938190]  unwind_backtrace from show_stack+0x18/0x1c
[   37.938524]  show_stack from dump_stack_lvl+0x6c/0x8c
[   37.938679]  dump_stack_lvl from __warn+0x84/0x130
[   37.938848]  __warn from warn_slowpath_fmt+0x18c/0x194
[   37.939047]  warn_slowpath_fmt from kunmap_local_indexed+0x178/0x17c
[   37.939230]  kunmap_local_indexed from move_pages+0x924/0x198c
[   37.939399]  move_pages from userfaultfd_ioctl+0x129c/0x2144
[   37.939562]  userfaultfd_ioctl from sys_ioctl+0x558/0xd24
[   37.939728]  sys_ioctl from ret_fast_syscall+0x0/0x1c
[   37.940203] Exception stack(0xf9f7dfa8 to 0xf9f7dff0)
[   37.940705] dfa0:                   00001000 00000000 00000005 c028aa05 b2dfecd8 b2dfecb0
[   37.941266] dfc0: 00001000 00000000 00000005 00000036 8010aa01 004a0000 b2dfed80 00000012
[   37.941544] dfe0: 00000036 b2dfec98 b6eb1861 b6e1f736
[   37.942024] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details 

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[   40.396179] WARNING: CPU: 1 PID: 671 at mm/highmem.c:622 kunmap_local_indexed+0x198/0x1a4
[   40.404418] Modules linked in: etnaviv snd_soc_simple_card gpu_sched snd_soc_simple_card_utils omapdrm ahci_dwc onboard_usb_dev snd_soc_davinci_mcasp snd_soc_ti_sdma snd_soc_ti_udma snd_soc_ti_edma snd_soc_tlv320aic3x_i2c snd_soc_tlv320aic3x snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm snd_timer snd soundcore display_connector omap_remoteproc ti_tpd12s015 nfnetlink ip_tables x_tables
[   40.438964] CPU: 1 UID: 0 PID: 671 Comm: uffd-unit-tests Tainted: G        W           6.15.0-rc6-next-20250512 #1 NONE 
[   40.438964] Tainted: [W]=WARN
[   40.438964] Hardware name: Generic DRA74X (Flattened Device Tree)
[   40.438964] Call trace: 
[   40.438995]  unwind_backtrace from show_stack+0x10/0x14
[   40.438995]  show_stack from dump_stack_lvl+0x50/0x5c
[   40.438995]  dump_stack_lvl from __warn+0xd8/0x1e0
[   40.439025]  __warn from warn_slowpath_fmt+0xa8/0x174
[   40.439025]  warn_slowpath_fmt from kunmap_local_indexed+0x198/0x1a4
[   40.439025]  kunmap_local_indexed from move_pages_pte+0xd14/0xe34
[   40.439056]  move_pages_pte from move_pages+0x428/0x5bc
[   40.439056]  move_pages from userfaultfd_ioctl+0x900/0x1ec0
[   40.439086]  userfaultfd_ioctl from sys_ioctl+0xd24/0xd90
[   40.439086]  sys_ioctl from ret_fast_syscall+0x0/0x5c
[   40.439086] Exception stack(0xf2745fa8 to 0xf2745ff0)
[   40.439086] 5fa0:                   00001000 00000005 00000005 c028aa05 b2ddecd8 b2ddecc8
[   40.439117] 5fc0: 00001000 00000005 b2ddece0 00000036 b2dded84 b2dded50 b2dded7c b2dded58
[   40.439117] 5fe0: 00000036 b2ddecb0 b6e91861 b6dff736
[   40.439117] ---[ end trace 0000000000000000 ]---
Metadata Full log Test run details