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Swap hang #16951

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reactormonk opened this issue Jan 15, 2025 · 3 comments
Open

Swap hang #16951

reactormonk opened this issue Jan 15, 2025 · 3 comments
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Type: Defect Incorrect behavior (e.g. crash, hang)

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@reactormonk
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reactormonk commented Jan 15, 2025 •
edited by amotin
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System information

Distribution Name | Archlinux
Distribution Version | Rolling
Kernel Version | 6.12.9-arch1-1
Architecture | x86_64
OpenZFS Version | 2.2.7

Describe the problem you're observing

System hang, systemd-journal in this case. Complete machine lockup, but recovered after the task has been killed.

Describe how to reproduce the problem

No idea :-(

Include any warning/errors/backtraces from the system logs

an 15 14:22:39 kyrios kernel: INFO: task systemd-journal:1331 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:systemd-journal state:D stack:0     pid:1331  tgid:1331  ppid:1      flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? perf_trace_mm_filemap_op_page_cache+0x3e/0x140
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  __folio_lock_or_retry+0x51/0x140
Jan 15 14:22:39 kyrios kernel:  do_swap_page+0x7be/0x17e0
Jan 15 14:22:39 kyrios kernel:  ? update_curr+0x40/0x270
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? sched_clock_cpu+0x59/0x1d0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? psi_group_change+0x13b/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_default_wake_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __pte_offset_map+0x1b/0x180
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x822/0xfa0
Jan 15 14:22:39 kyrios kernel:  ? get_partial_node.part.0+0x188/0x2a0
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  __get_user_pages+0x8ad/0x1590
Jan 15 14:22:39 kyrios kernel:  get_user_pages_remote+0x102/0x4d0
Jan 15 14:22:39 kyrios kernel:  ? __entry_text_end+0x101e45/0x101e49
Jan 15 14:22:39 kyrios kernel:  __access_remote_vm+0xeb/0x4a0
Jan 15 14:22:39 kyrios kernel:  proc_pid_cmdline_read+0x183/0x3d0
Jan 15 14:22:39 kyrios kernel:  vfs_read+0xeb/0x370
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __seccomp_filter+0x303/0x520
Jan 15 14:22:39 kyrios kernel:  ksys_read+0x6d/0xf0
Jan 15 14:22:39 kyrios kernel:  do_syscall_64+0x82/0x190
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? do_syscall_64+0x8e/0x190
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __mod_memcg_lruvec_state+0x9c/0x140
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __lruvec_stat_mod_folio+0x83/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? folio_add_anon_rmap_ptes+0x4d/0x110
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? set_ptes.isra.0+0x41/0x90
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? do_swap_page+0x2e8/0x17e0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? syscall_exit_to_user_mode+0x37/0x1c0
Jan 15 14:22:39 kyrios kernel:  ? __pfx_default_wake_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __pte_offset_map+0x1b/0x180
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __handle_mm_fault+0x822/0xfa0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __count_memcg_events+0x53/0xf0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? count_memcg_events.constprop.0+0x1a/0x30
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? handle_mm_fault+0x1bb/0x2c0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? do_user_addr_fault+0x36c/0x620
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  entry_SYSCALL_64_after_hwframe+0x76/0x7e
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x7eac6925dc5a
Jan 15 14:22:39 kyrios kernel: RSP: 002b:00007fffe7dc2900 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
Jan 15 14:22:39 kyrios kernel: RAX: ffffffffffffffda RBX: 000056b0e6f12110 RCX: 00007eac6925dc5a
Jan 15 14:22:39 kyrios kernel: RDX: 0000000000001008 RSI: 000056b0e6f12110 RDI: 0000000000000012
Jan 15 14:22:39 kyrios kernel: RBP: 00007fffe7dc2920 R08: 0000000000000000 R09: 0000000000000001
Jan 15 14:22:39 kyrios kernel: R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000001008
Jan 15 14:22:39 kyrios kernel: R13: 0000000000000012 R14: 0000000000001008 R15: ffffffffffffffff
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: INFO: task P[cgroupsdisc]:1624 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:P[cgroupsdisc]  state:D stack:0     pid:1624  tgid:1344  ppid:1      flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? copy_from_kernel_nofault+0x21/0xe0
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  folio_wait_writeback+0x2b/0x80
Jan 15 14:22:39 kyrios kernel:  shmem_swapin_folio+0x54a/0xb10
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  shmem_get_folio_gfp+0x1ac/0x5c0
Jan 15 14:22:39 kyrios kernel:  ? filemap_map_pages+0x522/0x670
Jan 15 14:22:39 kyrios kernel:  shmem_fault+0x86/0x2f0
Jan 15 14:22:39 kyrios kernel:  __do_fault+0x33/0x170
Jan 15 14:22:39 kyrios kernel:  do_fault+0x303/0x4c0
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x7c2/0xfa0
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  do_user_addr_fault+0x217/0x620
Jan 15 14:22:39 kyrios kernel:  exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x7c811ca0e8b5
Jan 15 14:22:39 kyrios kernel: RSP: 002b:00007c80cce6a720 EFLAGS: 00010293
Jan 15 14:22:39 kyrios kernel: RAX: 0000000000000000 RBX: 00007c811df4e000 RCX: 00007c811ca02cd7
Jan 15 14:22:39 kyrios kernel: RDX: 00007c80cce6c6c0 RSI: 0000000000000081 RDI: 00007c811df4e000
Jan 15 14:22:39 kyrios kernel: RBP: 00007c80cce6a730 R08: 0000000000000000 R09: 0000000000000000
Jan 15 14:22:39 kyrios kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
Jan 15 14:22:39 kyrios kernel: R13: 00005e0461f76b60 R14: 00005e0461ec5030 R15: 00005e047fd68040
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: INFO: task EBPF CGROUP INT:1713 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:EBPF CGROUP INT state:D stack:0     pid:1713  tgid:1644  ppid:1352   flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? migrate_task_to+0xae/0xd0
Jan 15 14:22:39 kyrios kernel:  ? __dequeue_entity+0x3f5/0x4b0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  shmem_swapin_folio+0x7af/0xb10
Jan 15 14:22:39 kyrios kernel:  ? schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? do_nanosleep+0x62/0x140
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  shmem_get_folio_gfp+0x1ac/0x5c0
Jan 15 14:22:39 kyrios kernel:  ? filemap_map_pages+0x522/0x670
Jan 15 14:22:39 kyrios kernel:  shmem_fault+0x86/0x2f0
Jan 15 14:22:39 kyrios kernel:  __do_fault+0x33/0x170
Jan 15 14:22:39 kyrios kernel:  do_fault+0x303/0x4c0
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x7c2/0xfa0
Jan 15 14:22:39 kyrios kernel:  ? put_timespec64+0x3e/0x70
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  do_user_addr_fault+0x217/0x620
Jan 15 14:22:39 kyrios kernel:  exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x721dbe1bf8b5
Jan 15 14:22:39 kyrios kernel: RSP: 002b:0000721dbd496b70 EFLAGS: 00010293
Jan 15 14:22:39 kyrios kernel: RAX: 0000000000000000 RBX: 0000721dbe5ef000 RCX: 000000000483f91f
Jan 15 14:22:39 kyrios kernel: RDX: 0000721dbd4986c0 RSI: 0000721dbd496b30 RDI: 0000721dbe5ef000
Jan 15 14:22:39 kyrios kernel: RBP: 0000721dbd496b80 R08: 0000000000000000 R09: 0000721da800a6a0
Jan 15 14:22:39 kyrios kernel: R10: 0000000000000000 R11: 0000000000000293 R12: 0000721dbd496bb0
Jan 15 14:22:39 kyrios kernel: R13: 00000000000a76d0 R14: 00000000000a76d0 R15: 0000721dbdcad5d8
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: INFO: task IPDL Background:2865 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:IPDL Background state:D stack:0     pid:2865  tgid:2669  ppid:1790   flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __pte_offset_map+0x1b/0x180
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  folio_wait_writeback+0x2b/0x80
Jan 15 14:22:39 kyrios kernel:  shmem_swapin_folio+0x54a/0xb10
Jan 15 14:22:39 kyrios kernel:  ? exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  shmem_get_folio_gfp+0x1ac/0x5c0
Jan 15 14:22:39 kyrios kernel:  ? filemap_map_pages+0x522/0x670
Jan 15 14:22:39 kyrios kernel:  shmem_fault+0x86/0x2f0
Jan 15 14:22:39 kyrios kernel:  __do_fault+0x33/0x170
Jan 15 14:22:39 kyrios kernel:  do_fault+0x303/0x4c0
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x7c2/0xfa0
Jan 15 14:22:39 kyrios kernel:  ? put_timespec64+0x3e/0x70
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  do_user_addr_fault+0x217/0x620
Jan 15 14:22:39 kyrios kernel:  exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x722cf0a83900
Jan 15 14:22:39 kyrios kernel: RSP: 002b:0000722ce3e7b700 EFLAGS: 00010202
Jan 15 14:22:39 kyrios kernel: RAX: 0000722cc5bce000 RBX: 0000722c957b0b30 RCX: 0000722cf5f92ac0
Jan 15 14:22:39 kyrios kernel: RDX: 0000722ca9f6ae00 RSI: 0000722ce3e7b7c8 RDI: 0000722c957b0b30
Jan 15 14:22:39 kyrios kernel: RBP: 0000722c961860a0 R08: 0000000000000008 R09: 0000722ca9f6ae00
Jan 15 14:22:39 kyrios kernel: R10: 0000000000000000 R11: 0000000000001000 R12: 0000722c96445e80
Jan 15 14:22:39 kyrios kernel: R13: 0000722ca9f6a100 R14: 0000722ce3e7b7c8 R15: 00000000000024a1
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: INFO: task signal-desktop:2853 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:signal-desktop  state:D stack:0     pid:2853  tgid:2853  ppid:1790   flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? __entry_text_end+0xfde55/0x101e49
Jan 15 14:22:39 kyrios kernel:  ? spl_kmem_cache_free+0x133/0x1e0 [spl 130a3b55a510523f0618e0ed67b8a7ed4ea4e05e]
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  folio_wait_writeback+0x2b/0x80
Jan 15 14:22:39 kyrios kernel:  shmem_swapin_folio+0x54a/0xb10
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __mod_memcg_lruvec_state+0x9c/0x140
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  shmem_get_folio_gfp+0x1ac/0x5c0
Jan 15 14:22:39 kyrios kernel:  ? filemap_map_pages+0x522/0x670
Jan 15 14:22:39 kyrios kernel:  shmem_fault+0x86/0x2f0
Jan 15 14:22:39 kyrios kernel:  __do_fault+0x33/0x170
Jan 15 14:22:39 kyrios kernel:  do_fault+0x303/0x4c0
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x7c2/0xfa0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? do_syscall_64+0x8e/0x190
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  do_user_addr_fault+0x217/0x620
Jan 15 14:22:39 kyrios kernel:  exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x562e2c03c44e
Jan 15 14:22:39 kyrios kernel: RSP: 002b:00007ffcb1c77190 EFLAGS: 00010206
Jan 15 14:22:39 kyrios kernel: RAX: 00007e129d8f3700 RBX: 00007ffcb1c772b0 RCX: 0000000000000000
Jan 15 14:22:39 kyrios kernel: RDX: 0000000000000000 RSI: 000038cc04f5a760 RDI: 000038cc04fdca28
Jan 15 14:22:39 kyrios kernel: RBP: 00007ffcb1c77190 R08: 0000000000000000 R09: 0000000000000000
Jan 15 14:22:39 kyrios kernel: R10: 000038cc00100000 R11: 000038cc01fb23fc R12: 000038cc04fdca10
Jan 15 14:22:39 kyrios kernel: R13: 000038cc036139f0 R14: 000038cc04f5a760 R15: 000038cc04fdca10
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: INFO: task Chrome_ChildIOT:3499 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:Chrome_ChildIOT state:D stack:0     pid:3499  tgid:3482  ppid:3448   flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? __entry_text_end+0xfde55/0x101e49
Jan 15 14:22:39 kyrios kernel:  ? spl_kmem_cache_free+0x133/0x1e0 [spl 130a3b55a510523f0618e0ed67b8a7ed4ea4e05e]
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  folio_wait_writeback+0x2b/0x80
Jan 15 14:22:39 kyrios kernel:  shmem_swapin_folio+0x54a/0xb10
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __mod_memcg_lruvec_state+0x9c/0x140
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  shmem_get_folio_gfp+0x1ac/0x5c0
Jan 15 14:22:39 kyrios kernel:  ? filemap_map_pages+0x522/0x670
Jan 15 14:22:39 kyrios kernel:  shmem_fault+0x86/0x2f0
Jan 15 14:22:39 kyrios kernel:  __do_fault+0x33/0x170
Jan 15 14:22:39 kyrios kernel:  do_fault+0x303/0x4c0
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x7c2/0xfa0
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  do_user_addr_fault+0x217/0x620
Jan 15 14:22:39 kyrios kernel:  exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x7955430be655
Jan 15 14:22:39 kyrios kernel: RSP: 002b:000079553caa4a98 EFLAGS: 00010246
Jan 15 14:22:39 kyrios kernel: RAX: 000079553caa4c84 RBX: 00001a2c00804550 RCX: 0000000000000001
Jan 15 14:22:39 kyrios kernel: RDX: 0000000000000004 RSI: 000079553a27bcc8 RDI: 000079553caa4c84
Jan 15 14:22:39 kyrios kernel: RBP: 000079553caa4be0 R08: 0000000000000001 R09: aaaaaaaaaaaaaaab
Jan 15 14:22:39 kyrios kernel: R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
Jan 15 14:22:39 kyrios kernel: R13: 0000000000000000 R14: 00001a2c00804540 R15: 00001a2c00804598
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: INFO: task vesktop:3923 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:vesktop         state:D stack:0     pid:3923  tgid:3923  ppid:3448   flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? __entry_text_end+0xfde55/0x101e49
Jan 15 14:22:39 kyrios kernel:  ? __sys_sendto+0x15b/0x1f0
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  folio_wait_writeback+0x2b/0x80
Jan 15 14:22:39 kyrios kernel:  shmem_swapin_folio+0x54a/0xb10
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? ktime_get_ts64+0x44/0x110
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? put_timespec64+0x3e/0x70
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  shmem_get_folio_gfp+0x1ac/0x5c0
Jan 15 14:22:39 kyrios kernel:  ? filemap_map_pages+0x522/0x670
Jan 15 14:22:39 kyrios kernel:  shmem_fault+0x86/0x2f0
Jan 15 14:22:39 kyrios kernel:  __do_fault+0x33/0x170
Jan 15 14:22:39 kyrios kernel:  do_fault+0x303/0x4c0
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x7c2/0xfa0
Jan 15 14:22:39 kyrios kernel:  ? put_timespec64+0x3e/0x70
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  do_user_addr_fault+0x217/0x620
Jan 15 14:22:39 kyrios kernel:  exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x758b259a0655
Jan 15 14:22:39 kyrios kernel: RSP: 002b:00007ffe80a42018 EFLAGS: 00010246
Jan 15 14:22:39 kyrios kernel: RAX: 00007ffe80a42204 RBX: 000006740cf90550 RCX: 0000000000000001
Jan 15 14:22:39 kyrios kernel: RDX: 0000000000000004 RSI: 0000758b1e168248 RDI: 00007ffe80a42204
Jan 15 14:22:39 kyrios kernel: RBP: 00007ffe80a42160 R08: 0000000000000001 R09: aaaaaaaaaaaaaaab
Jan 15 14:22:39 kyrios kernel: R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
Jan 15 14:22:39 kyrios kernel: R13: 0000000000000000 R14: 000006740cf90540 R15: 000006740cf90598
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: INFO: task Realtime AudioW:70934 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:Realtime AudioW state:D stack:0     pid:70934 tgid:3923  ppid:3448   flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? __entry_text_end+0xfde55/0x101e49
Jan 15 14:22:39 kyrios kernel:  ? spl_kmem_cache_free+0x133/0x1e0 [spl 130a3b55a510523f0618e0ed67b8a7ed4ea4e05e]
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  folio_wait_writeback+0x2b/0x80
Jan 15 14:22:39 kyrios kernel:  shmem_swapin_folio+0x54a/0xb10
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __mod_memcg_lruvec_state+0x9c/0x140
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  shmem_get_folio_gfp+0x1ac/0x5c0
Jan 15 14:22:39 kyrios kernel:  ? filemap_map_pages+0x522/0x670
Jan 15 14:22:39 kyrios kernel:  shmem_fault+0x86/0x2f0
Jan 15 14:22:39 kyrios kernel:  __do_fault+0x33/0x170
Jan 15 14:22:39 kyrios kernel:  do_fault+0x303/0x4c0
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x7c2/0xfa0
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  do_user_addr_fault+0x217/0x620
Jan 15 14:22:39 kyrios kernel:  exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x5ed8d2ceb44e
Jan 15 14:22:39 kyrios kernel: RSP: 002b:0000758a311caa10 EFLAGS: 00010206
Jan 15 14:22:39 kyrios kernel: RAX: 0000758b26efd700 RBX: 0000758a311cab30 RCX: 0000000000000000
Jan 15 14:22:39 kyrios kernel: RDX: 0000000000000000 RSI: 0000067400035080 RDI: 00000674000156f8
Jan 15 14:22:39 kyrios kernel: RBP: 0000758a311caa10 R08: 0000000000000000 R09: 0000000000000000
Jan 15 14:22:39 kyrios kernel: R10: 0000000000000000 R11: 0000000000000297 R12: 00000674000156e0
Jan 15 14:22:39 kyrios kernel: R13: 0000067400e314a0 R14: 0000067400035080 R15: 00000674000156e0
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: INFO: task WebExtensions:4694 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:WebExtensions   state:D stack:0     pid:4694  tgid:4694  ppid:3493   flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? spl_kmem_cache_free+0x133/0x1e0 [spl 130a3b55a510523f0618e0ed67b8a7ed4ea4e05e]
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  shmem_swapin_folio+0x7af/0xb10
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? __mod_memcg_lruvec_state+0x9c/0x140
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  shmem_get_folio_gfp+0x1ac/0x5c0
Jan 15 14:22:39 kyrios kernel:  ? filemap_map_pages+0x522/0x670
Jan 15 14:22:39 kyrios kernel:  shmem_fault+0x86/0x2f0
Jan 15 14:22:39 kyrios kernel:  __do_fault+0x33/0x170
Jan 15 14:22:39 kyrios kernel:  do_fault+0x303/0x4c0
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x7c2/0xfa0
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  do_user_addr_fault+0x217/0x620
Jan 15 14:22:39 kyrios kernel:  exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x76f69cf67f64
Jan 15 14:22:39 kyrios kernel: RSP: 002b:00007fff5ce90850 EFLAGS: 00010202
Jan 15 14:22:39 kyrios kernel: RAX: 000076f699d9aaac RBX: 00002ec38b648330 RCX: 0000000000004e01
Jan 15 14:22:39 kyrios kernel: RDX: 0000000000000001 RSI: 00002ec38b648330 RDI: 000076f694b24200
Jan 15 14:22:39 kyrios kernel: RBP: 00007fff5ce917a0 R08: 00007fff5ce915a0 R09: fffe000000000000
Jan 15 14:22:39 kyrios kernel: R10: 000076f694b24200 R11: 000076f694b24268 R12: 00007fff5ce917b8
Jan 15 14:22:39 kyrios kernel: R13: 00007fff5ce917b8 R14: fffe000000000000 R15: 000076f6a898d301
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: INFO: task kotlinx.corouti:135212 blocked for more than 122 seconds.
Jan 15 14:22:39 kyrios kernel:       Tainted: P        W  OE      6.12.9-arch1-1 #1
Jan 15 14:22:39 kyrios kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan 15 14:22:39 kyrios kernel: task:kotlinx.corouti state:D stack:0     pid:135212 tgid:135129 ppid:1790   flags:0x00000002
Jan 15 14:22:39 kyrios kernel: Call Trace:
Jan 15 14:22:39 kyrios kernel:  <TASK>
Jan 15 14:22:39 kyrios kernel:  __schedule+0x3b0/0x12b0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  schedule+0x27/0xf0
Jan 15 14:22:39 kyrios kernel:  io_schedule+0x46/0x70
Jan 15 14:22:39 kyrios kernel:  folio_wait_bit_common+0x132/0x310
Jan 15 14:22:39 kyrios kernel:  ? __pfx_wake_page_function+0x10/0x10
Jan 15 14:22:39 kyrios kernel:  shmem_swapin_folio+0x7af/0xb10
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? xas_load+0xd/0xd0
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  ? filemap_get_entry+0x104/0x1a0
Jan 15 14:22:39 kyrios kernel:  shmem_get_folio_gfp+0x1ac/0x5c0
Jan 15 14:22:39 kyrios kernel:  ? do_syscall_64+0x8e/0x190
Jan 15 14:22:39 kyrios kernel:  shmem_fault+0x86/0x2f0
Jan 15 14:22:39 kyrios kernel:  ? hrtimer_cancel+0x15/0x40
Jan 15 14:22:39 kyrios kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
Jan 15 14:22:39 kyrios kernel:  __do_fault+0x33/0x170
Jan 15 14:22:39 kyrios kernel:  do_fault+0x117/0x4c0
Jan 15 14:22:39 kyrios kernel:  __handle_mm_fault+0x7c2/0xfa0
Jan 15 14:22:39 kyrios kernel:  handle_mm_fault+0xe2/0x2c0
Jan 15 14:22:39 kyrios kernel:  do_user_addr_fault+0x217/0x620
Jan 15 14:22:39 kyrios kernel:  exc_page_fault+0x81/0x190
Jan 15 14:22:39 kyrios kernel:  asm_exc_page_fault+0x26/0x30
Jan 15 14:22:39 kyrios kernel: RIP: 0033:0x717d7aff69b5
Jan 15 14:22:39 kyrios kernel: RSP: 002b:0000717d2117c680 EFLAGS: 00010202
Jan 15 14:22:39 kyrios kernel: RAX: 0000717d7b84e100 RBX: 000058e3e6290450 RCX: 0000717d7b3b14a0
Jan 15 14:22:39 kyrios kernel: RDX: 0000000000000001 RSI: 0000000000000081 RDI: 000058e3b8a33228
Jan 15 14:22:39 kyrios kernel: RBP: 0000717d2117c6e0 R08: 0000000000000004 R09: 0000000000000053
Jan 15 14:22:39 kyrios kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
Jan 15 14:22:39 kyrios kernel: R13: 000058e3e62904e8 R14: 000058e3b8a32720 R15: 000058e3e6290490
Jan 15 14:22:39 kyrios kernel:  </TASK>
Jan 15 14:22:39 kyrios kernel: Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
@reactormonk reactormonk added the Type: Defect Incorrect behavior (e.g. crash, hang) label Jan 15, 2025
@amotin
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amotin commented Jan 15, 2025

Where do you swap? Swapping on ZFS is a known bad idea due to large amount of memory allocations it require.

@reactormonk
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It's a separate volume:

NAME               PROPERTY               VALUE                  SOURCE
zroot_kyrios/swap  type                   volume                 -
zroot_kyrios/swap  creation               Sa Mai 13 21:51 2023   -
zroot_kyrios/swap  used                   31.9G                  -
zroot_kyrios/swap  available              206G                   -
zroot_kyrios/swap  referenced             30.8G                  -
zroot_kyrios/swap  compressratio          1.00x                  -
zroot_kyrios/swap  reservation            none                   default
zroot_kyrios/swap  volsize                30G                    local
zroot_kyrios/swap  volblocksize           4K                     -
zroot_kyrios/swap  checksum               on                     default
zroot_kyrios/swap  compression            zstd                   local
zroot_kyrios/swap  readonly               off                    default
zroot_kyrios/swap  createtxg              166                    -
zroot_kyrios/swap  copies                 1                      default
zroot_kyrios/swap  refreservation         31.9G                  local
zroot_kyrios/swap  guid                   9428273894261411965    -
zroot_kyrios/swap  primarycache           metadata               local
zroot_kyrios/swap  secondarycache         none                   local
zroot_kyrios/swap  usedbysnapshots        0B                     -
zroot_kyrios/swap  usedbydataset          30.8G                  -
zroot_kyrios/swap  usedbychildren         0B                     -
zroot_kyrios/swap  usedbyrefreservation   1.05G                  -
zroot_kyrios/swap  logbias                throughput             local
zroot_kyrios/swap  objsetid               135                    -
zroot_kyrios/swap  dedup                  off                    default
zroot_kyrios/swap  mlslabel               none                   default
zroot_kyrios/swap  sync                   always                 local
zroot_kyrios/swap  refcompressratio       1.00x                  -
zroot_kyrios/swap  written                30.8G                  -
zroot_kyrios/swap  logicalused            30.4G                  -
zroot_kyrios/swap  logicalreferenced      30.4G                  -
zroot_kyrios/swap  volmode                default                default
zroot_kyrios/swap  snapshot_limit         none                   default
zroot_kyrios/swap  snapshot_count         none                   default
zroot_kyrios/swap  snapdev                hidden                 default
zroot_kyrios/swap  context                none                   default
zroot_kyrios/swap  fscontext              none                   default
zroot_kyrios/swap  defcontext             none                   default
zroot_kyrios/swap  rootcontext            none                   default
zroot_kyrios/swap  redundant_metadata     all                    default
zroot_kyrios/swap  encryption             aes-256-gcm            -
zroot_kyrios/swap  keylocation            none                   default
zroot_kyrios/swap  keyformat              passphrase             -
zroot_kyrios/swap  pbkdf2iters            350000                 -
zroot_kyrios/swap  encryptionroot         zroot_kyrios           -
zroot_kyrios/swap  keystatus              available              -
zroot_kyrios/swap  prefetch               all                    default
zroot_kyrios/swap  com.sun:auto-snapshot  false                  local

@amotin
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amotin commented Jan 15, 2025 •
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AFAIK Solaris/Illumos had a special mechanisms to optimize swapping to ZVOLs. I don't know whether Linux has something similar, but it is still expensive, the question is just more or less.

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