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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x1, magic = 0xffff0000d9cd23b0, owner = 0xffff0000d4e13800, curr 0xffff0000c7cf3800, list empty
WARNING: CPU: 1 PID: 5275 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline]
WARNING: CPU: 1 PID: 5275 at kernel/locking/rwsem.c:1372 up_write+0x498/0x5c0 kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 1 PID: 5275 Comm: syz.2.287 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __up_write kernel/locking/rwsem.c:1371 [inline]
pc : up_write+0x498/0x5c0 kernel/locking/rwsem.c:1626
lr : __up_write kernel/locking/rwsem.c:1371 [inline]
lr : up_write+0x498/0x5c0 kernel/locking/rwsem.c:1626
sp : ffff8000224778c0
x29: ffff8000224778d0 x28: 0000000000000003 x27: 0000000000000001
x26: 0000000000000008 x25: 0000000000000001 x24: dfff800000000000

x23: ffff0000d4e13800
 x22: ffff0000d9cd23b0 x21: ffff0000d9cd2408
x20: ffff0000c7cf3800 x19: ffff0000d9cd23b0 x18: 1fffe00033c1c97e
x17: ffff80001641d000 x16: ffff8000082dd38c x15: ffff00019e0e4bfc
x14: 0000000000000001 x13: 1fffe00033c1f070 x12: 0000000000000000
x11: ff0080000a982760 x10: 0000000000000003 x9 : 17d97eea35e6b700
x8 : 17d97eea35e6b700 x7 : ffff800011d2c160 x6 : ffff80000825ab2c
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000

x2 : 0000000000000006 x1 : ffff800011d2dc80
 x0 : ffff800187d6e000
Call trace:
 __up_write kernel/locking/rwsem.c:1371 [inline]
 up_write+0x498/0x5c0 kernel/locking/rwsem.c:1626
 allow_background_work drivers/md/dm-cache-target.c:1033 [inline]
 cache_resume+0x90/0x108 drivers/md/dm-cache-target.c:3107
 dm_table_resume_targets+0x244/0x39c drivers/md/dm-table.c:2146
 __dm_resume+0x2c/0x208 drivers/md/dm.c:2826
 dm_resume+0x1d8/0x2d4 drivers/md/dm.c:2871
 do_resume drivers/md/dm-ioctl.c:1209 [inline]
 dev_suspend+0x338/0x614 drivers/md/dm-ioctl.c:1241
 ctl_ioctl drivers/md/dm-ioctl.c:2055 [inline]
 dm_ctl_ioctl+0xaac/0xf1c drivers/md/dm-ioctl.c:2077
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 560
hardirqs last  enabled at (559): [<ffff80000825abc0>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline]
hardirqs last  enabled at (559): [<ffff80000825abc0>] finish_lock_switch+0xb0/0x1c8 kernel/sched/core.c:5005
hardirqs last disabled at (560): [<ffff800011bcadc0>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (28): [<ffff800008031254>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (26): [<ffff800008031220>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
kobject: 'dm-1' (00000000756fedae): kobject_uevent_env
kobject: 'dm-1' (00000000756fedae): fill_kobj_path: path = '/devices/virtual/block/dm-1'
kcov: kcov_task_exit: t = ffff0000c7cf3800, kcov->t = ffff0000c7cf3800