SUMMARY System randomly hangs and only hard reset (long press on power button) helps. I observe no pattern, nothing. It just happens serveral times per hour regularly. Symptoms: 1. first bluetooth mouse become irresponsible 2. in couple of seconds hangs everything. In logs I see some references to baloo so reporting issue here. See attached log from `journalctl`. ``` сак 11 19:23:18 xps kernel: BUG: kernel NULL pointer dereference, address: 000000000000008d сак 11 19:23:18 xps kernel: #PF: supervisor read access in kernel mode сак 11 19:23:18 xps kernel: #PF: error_code(0x0000) - not-present page сак 11 19:23:18 xps kernel: PGD 0 P4D 0 сак 11 19:23:18 xps kernel: Oops: 0000 [#1] PREEMPT SMP NOPTI сак 11 19:23:18 xps kernel: CPU: 14 PID: 11631 Comm: baloo_file_extr Tainted: P OE 6.7.9-arch1-1 #1 ad54415bbff2f0801422a3b76df850f68e71ecab сак 11 19:23:18 xps kernel: Hardware name: Dell Inc. XPS 17 9720/0KNF8J, BIOS 1.21.0 11/13/2023 сак 11 19:23:18 xps kernel: RIP: 0010:refill_obj_stock+0x4f/0x180 сак 11 19:23:18 xps kernel: Code: c7 40 08 03 00 65 4c 03 3d fe 61 83 56 49 8b 47 10 48 39 f8 0f 84 9c 00 00 00 4c 89 ff e8 59 f2 ff ff 49 89 c6 e8 e1 ab d8 ff <48> 8b 45 0> сак 11 19:23:18 xps kernel: RSP: 0000:ffffa7e9ce227780 EFLAGS: 00010002 сак 11 19:23:18 xps kernel: RAX: 0000000000000001 RBX: 000000000000052b RCX: ffff8af543aded20 сак 11 19:23:18 xps kernel: RDX: ffff8af52ee38000 RSI: 000000000000052b RDI: ffff8afbef5b0840 сак 11 19:23:18 xps kernel: RBP: 000000000000008d R08: ffff8af4caa22950 R09: ffff8af4c07b05a1 сак 11 19:23:18 xps kernel: R10: ffff8af543aded20 R11: 000000000000006b R12: 0000000000000206 сак 11 19:23:18 xps kernel: R13: 0000000000000001 R14: ffff8af4a3ddf0c0 R15: ffff8afbef5b0840 сак 11 19:23:18 xps kernel: FS: 000076b8c2761540(0000) GS:ffff8afbef580000(0000) knlGS:0000000000000000 сак 11 19:23:18 xps kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 сак 11 19:23:18 xps kernel: CR2: 000000000000008d CR3: 00000001f20c0000 CR4: 0000000000f50ef0 сак 11 19:23:18 xps kernel: PKRU: 55555554 сак 11 19:23:18 xps kernel: Call Trace: сак 11 19:23:18 xps kernel: <TASK> сак 11 19:23:18 xps kernel: ? __die+0x23/0x70 сак 11 19:23:18 xps kernel: ? page_fault_oops+0x171/0x4e0 сак 11 19:23:18 xps kernel: ? exc_page_fault+0x7f/0x180 сак 11 19:23:18 xps kernel: ? asm_exc_page_fault+0x26/0x30 сак 11 19:23:18 xps kernel: ? refill_obj_stock+0x4f/0x180 сак 11 19:23:18 xps kernel: obj_cgroup_uncharge_zswap+0x1d/0x60 сак 11 19:23:18 xps kernel: zswap_free_entry+0x1b/0x150 сак 11 19:23:18 xps kernel: zswap_store+0x24c/0x9d0 сак 11 19:23:18 xps kernel: ? try_to_unmap_one+0x18b/0xd30 сак 11 19:23:18 xps kernel: swap_writepage+0x33/0xb0 сак 11 19:23:18 xps kernel: pageout+0xc5/0x240 сак 11 19:23:18 xps kernel: shrink_folio_list+0x62b/0xd90 сак 11 19:23:18 xps kernel: evict_folios+0x282/0x6a0 сак 11 19:23:18 xps kernel: try_to_shrink_lruvec+0x19e/0x290 сак 11 19:23:18 xps kernel: shrink_lruvec+0x160/0xdd0 сак 11 19:23:18 xps kernel: ? get_page_from_freelist+0x1882/0x19f0 сак 11 19:23:18 xps kernel: ? mem_cgroup_iter+0xec/0x2a0 сак 11 19:23:18 xps kernel: shrink_node+0x2ae/0xbc0 сак 11 19:23:18 xps kernel: ? __pfx_lru_add_fn+0x10/0x10 сак 11 19:23:18 xps kernel: do_try_to_free_pages+0xe7/0x5b0 сак 11 19:23:18 xps kernel: try_to_free_mem_cgroup_pages+0x10b/0x230 сак 11 19:23:18 xps kernel: reclaim_high+0xb1/0x100 сак 11 19:23:18 xps kernel: mem_cgroup_handle_over_high+0xa8/0x260 сак 11 19:23:18 xps kernel: exit_to_user_mode_prepare+0x160/0x1f0 сак 11 19:23:18 xps kernel: irqentry_exit_to_user_mode+0x9/0x30 сак 11 19:23:18 xps kernel: asm_exc_page_fault+0x26/0x30 сак 11 19:23:18 xps kernel: RIP: 0033:0x76b8c40b8f42 сак 11 19:23:18 xps kernel: Code: 8d 34 19 48 39 d5 48 89 75 60 0f 95 c2 48 29 d8 48 83 c1 10 0f b6 d2 48 83 c8 01 48 c1 e2 02 48 09 da 48 83 ca 01 48 89 51 f8 <48> 89 46 0> сак 11 19:23:18 xps kernel: RSP: 002b:00007ffe40088580 EFLAGS: 00010202 сак 11 19:23:18 xps kernel: RAX: 000000000000cff1 RBX: 0000000000000090 RCX: 00005852cbbd6f90 сак 11 19:23:18 xps kernel: RDX: 0000000000000091 RSI: 00005852cbbd7010 RDI: 0000000000000000 сак 11 19:23:18 xps kernel: RBP: 000076b8c41f6ac0 R08: 0000000000000090 R09: 0000000000000001 сак 11 19:23:18 xps kernel: R10: 0000000000000004 R11: 00005852cbbb4000 R12: 0000000000000080 сак 11 19:23:18 xps kernel: R13: 0000000000000090 R14: 0000000000000007 R15: 000076b8c41f6b20 сак 11 19:23:18 xps kernel: </TASK> сак 11 19:23:18 xps kernel: Modules linked in: ccm hid_logitech_hidpp usbhid veth xt_nat xt_tcpudp xt_conntrack xt_MASQUERADE nf_conntrack_netlink xfrm_user xfrm_algo iptab> сак 11 19:23:18 xps kernel: hid_sensor_trigger industrialio_triggered_buffer kfifo_buf hid_sensor_iio_common x86_pkg_temp_thermal intel_powerclamp industrialio coretemp hi> сак 11 19:23:18 xps kernel: dell_wmi_descriptor ledtrig_audio nvidia_uvm(POE) wmi_bmof cec rapl typec_ucsi snd_timer processor_thermal_wt_req cfg80211 intel_cstate spi_nor> сак 11 19:23:18 xps kernel: xhci_pci nvme_auth xhci_pci_renesas i8042 serio сак 11 19:23:18 xps kernel: CR2: 000000000000008d сак 11 19:23:18 xps kernel: ---[ end trace 0000000000000000 ]--- сак 11 19:23:18 xps kernel: RIP: 0010:refill_obj_stock+0x4f/0x180 сак 11 19:23:18 xps kernel: Code: c7 40 08 03 00 65 4c 03 3d fe 61 83 56 49 8b 47 10 48 39 f8 0f 84 9c 00 00 00 4c 89 ff e8 59 f2 ff ff 49 89 c6 e8 e1 ab d8 ff <48> 8b 45 0> сак 11 19:23:18 xps kernel: RSP: 0000:ffffa7e9ce227780 EFLAGS: 00010002 сак 11 19:23:18 xps kernel: RAX: 0000000000000001 RBX: 000000000000052b RCX: ffff8af543aded20 сак 11 19:23:18 xps kernel: RDX: ffff8af52ee38000 RSI: 000000000000052b RDI: ffff8afbef5b0840 сак 11 19:23:18 xps kernel: RBP: 000000000000008d R08: ffff8af4caa22950 R09: ffff8af4c07b05a1 сак 11 19:23:18 xps kernel: R10: ffff8af543aded20 R11: 000000000000006b R12: 0000000000000206 сак 11 19:23:18 xps kernel: R13: 0000000000000001 R14: ffff8af4a3ddf0c0 R15: ffff8afbef5b0840 сак 11 19:23:18 xps kernel: FS: 000076b8c2761540(0000) GS:ffff8afbef580000(0000) knlGS:0000000000000000 сак 11 19:23:18 xps kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 сак 11 19:23:18 xps kernel: CR2: 000000000000008d CR3: 00000001f20c0000 CR4: 0000000000f50ef0 сак 11 19:23:18 xps kernel: PKRU: 55555554 сак 11 19:23:18 xps kernel: note: baloo_file_extr[11631] exited with irqs disabled сак 11 19:23:18 xps kernel: note: baloo_file_extr[11631] exited with preempt_count 1 сак 11 19:23:18 xps kernel: ------------[ cut here ]------------ сак 11 19:23:18 xps kernel: WARNING: CPU: 14 PID: 11631 at kernel/exit.c:818 do_exit+0x8ff/0xb60 сак 11 19:23:18 xps kernel: Modules linked in: ccm hid_logitech_hidpp usbhid veth xt_nat xt_tcpudp xt_conntrack xt_MASQUERADE nf_conntrack_netlink xfrm_user xfrm_algo iptab> сак 11 19:23:18 xps kernel: hid_sensor_trigger industrialio_triggered_buffer kfifo_buf hid_sensor_iio_common x86_pkg_temp_thermal intel_powerclamp industrialio coretemp hi> сак 11 19:23:18 xps kernel: dell_wmi_descriptor ledtrig_audio nvidia_uvm(POE) wmi_bmof cec rapl typec_ucsi snd_timer processor_thermal_wt_req cfg80211 intel_cstate spi_nor> сак 11 19:23:18 xps kernel: xhci_pci nvme_auth xhci_pci_renesas i8042 serio сак 11 19:23:18 xps kernel: CPU: 14 PID: 11631 Comm: baloo_file_extr Tainted: P D OE 6.7.9-arch1-1 #1 ad54415bbff2f0801422a3b76df850f68e71ecab сак 11 19:23:18 xps kernel: Hardware name: Dell Inc. XPS 17 9720/0KNF8J, BIOS 1.21.0 11/13/2023 сак 11 19:23:18 xps kernel: RIP: 0010:do_exit+0x8ff/0xb60 сак 11 19:23:18 xps kernel: Code: e9 1f f8 ff ff 48 8b bb 08 06 00 00 31 f6 e8 c8 e0 ff ff e9 a7 fd ff ff 4c 89 e6 bf 05 06 00 00 e8 36 25 01 00 e9 49 f8 ff ff <0f> 0b e9 7> сак 11 19:23:18 xps kernel: RSP: 0000:ffffa7e9ce227ed8 EFLAGS: 00010286 сак 11 19:23:18 xps kernel: RAX: 0000000000000000 RBX: ffff8af52ee38000 RCX: 0000000000000027 сак 11 19:23:18 xps kernel: RDX: 0000000000000001 RSI: 0000000000002710 RDI: ffff8af481508000 сак 11 19:23:18 xps kernel: RBP: ffff8af487999f80 R08: 0000000000000000 R09: ffffa7e9ce227dd8 сак 11 19:23:18 xps kernel: R10: 0000000000000003 R11: ffff8afc0f7aa368 R12: 0000000000000009 сак 11 19:23:18 xps kernel: R13: ffff8af481508000 R14: 0000000000000000 R15: 0000000000000000 сак 11 19:23:18 xps kernel: FS: 000076b8c2761540(0000) GS:ffff8afbef580000(0000) knlGS:0000000000000000 сак 11 19:23:18 xps kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 сак 11 19:23:18 xps kernel: CR2: 000000000000008d CR3: 00000001f20c0000 CR4: 0000000000f50ef0 сак 11 19:23:18 xps kernel: PKRU: 55555554 сак 11 19:23:18 xps kernel: Call Trace: сак 11 19:23:18 xps kernel: <TASK> сак 11 19:23:18 xps kernel: ? do_exit+0x8ff/0xb60 сак 11 19:23:18 xps kernel: ? __warn+0x81/0x130 сак 11 19:23:18 xps kernel: ? do_exit+0x8ff/0xb60 сак 11 19:23:18 xps kernel: ? report_bug+0x171/0x1a0 сак 11 19:23:18 xps kernel: ? handle_bug+0x3c/0x80 сак 11 19:23:18 xps kernel: ? exc_invalid_op+0x17/0x70 сак 11 19:23:18 xps kernel: ? asm_exc_invalid_op+0x1a/0x20 сак 11 19:23:18 xps kernel: ? do_exit+0x8ff/0xb60 сак 11 19:23:18 xps kernel: ? do_exit+0x70/0xb60 сак 11 19:23:18 xps kernel: make_task_dead+0x83/0x170 сак 11 19:23:18 xps kernel: rewind_stack_and_make_dead+0x17/0x20 сак 11 19:23:18 xps kernel: RIP: 0033:0x76b8c40b8f42 сак 11 19:23:18 xps kernel: Code: 8d 34 19 48 39 d5 48 89 75 60 0f 95 c2 48 29 d8 48 83 c1 10 0f b6 d2 48 83 c8 01 48 c1 e2 02 48 09 da 48 83 ca 01 48 89 51 f8 <48> 89 46 0> сак 11 19:23:18 xps kernel: RSP: 002b:00007ffe40088580 EFLAGS: 00010202 сак 11 19:23:18 xps kernel: RAX: 000000000000cff1 RBX: 0000000000000090 RCX: 00005852cbbd6f90 сак 11 19:23:18 xps kernel: RDX: 0000000000000091 RSI: 00005852cbbd7010 RDI: 0000000000000000 сак 11 19:23:18 xps kernel: RBP: 000076b8c41f6ac0 R08: 0000000000000090 R09: 0000000000000001 сак 11 19:23:18 xps kernel: R10: 0000000000000004 R11: 00005852cbbb4000 R12: 0000000000000080 сак 11 19:23:18 xps kernel: R13: 0000000000000090 R14: 0000000000000007 R15: 000076b8c41f6b20 сак 11 19:23:18 xps kernel: </TASK> сак 11 19:23:18 xps kernel: ---[ end trace 0000000000000000 ]--- сак 11 19:23:33 xps sudo[11991]: pam_unix(sudo:auth): authentication failure; logname=alex uid=1000 euid=0 tty=/dev/pts/3 ruser=alex rhost= user=alex сак 11 19:23:50 xps kernel: watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [baloo_file:5542] сак 11 19:23:50 xps kernel: Modules linked in: ccm hid_logitech_hidpp usbhid veth xt_nat xt_tcpudp xt_conntrack xt_MASQUERADE nf_conntrack_netlink xfrm_user xfrm_algo iptab> сак 11 19:23:50 xps kernel: hid_sensor_trigger industrialio_triggered_buffer kfifo_buf hid_sensor_iio_common x86_pkg_temp_thermal intel_powerclamp industrialio coretemp hi> сак 11 19:23:50 xps kernel: dell_wmi_descriptor ledtrig_audio nvidia_uvm(POE) wmi_bmof cec rapl typec_ucsi snd_timer processor_thermal_wt_req cfg80211 intel_cstate spi_nor> сак 11 19:23:50 xps kernel: xhci_pci nvme_auth xhci_pci_renesas i8042 serio сак 11 19:23:50 xps kernel: CPU: 0 PID: 5542 Comm: baloo_file Tainted: P D W OE 6.7.9-arch1-1 #1 ad54415bbff2f0801422a3b76df850f68e71ecab сак 11 19:23:50 xps kernel: Hardware name: Dell Inc. XPS 17 9720/0KNF8J, BIOS 1.21.0 11/13/2023 сак 11 19:23:50 xps kernel: RIP: 0010:native_queued_spin_lock_slowpath+0x6e/0x2e0 сак 11 19:23:50 xps kernel: Code: 77 7f f0 0f ba 2b 08 0f 92 c2 8b 03 0f b6 d2 c1 e2 08 30 e4 09 d0 3d ff 00 00 00 77 5b 85 c0 74 10 0f b6 03 84 c0 74 09 f3 90 <0f> b6 03 8> сак 11 19:23:50 xps kernel: RSP: 0000:ffffa7e9c6f5fb88 EFLAGS: 00000202 сак 11 19:23:50 xps kernel: RAX: 0000000000000001 RBX: ffff8af4caa22958 RCX: 0000000000000001 сак 11 19:23:50 xps kernel: RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8af4caa22958 сак 11 19:23:50 xps kernel: RBP: ffff8af4caa22958 R08: 0000000000000001 R09: 0000000000000001 сак 11 19:23:50 xps kernel: R10: 0000000000000001 R11: 000000000000010c R12: 00000000001582e1 сак 11 19:23:50 xps kernel: R13: 03ffffffffffffff R14: ffff8af4caa22950 R15: 0000000000000001 сак 11 19:23:50 xps kernel: FS: 00007c75713d1980(0000) GS:ffff8afbef200000(0000) knlGS:0000000000000000 сак 11 19:23:50 xps kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 сак 11 19:23:50 xps kernel: CR2: 000063dad99541f0 CR3: 00000001278f6000 CR4: 0000000000f50ef0 сак 11 19:23:50 xps kernel: PKRU: 55555554 сак 11 19:23:50 xps kernel: Call Trace: сак 11 19:23:50 xps kernel: <IRQ> сак 11 19:23:50 xps kernel: ? watchdog_timer_fn+0x1b8/0x220 сак 11 19:23:50 xps kernel: ? __pfx_watchdog_timer_fn+0x10/0x10 сак 11 19:23:50 xps kernel: ? __hrtimer_run_queues+0x10f/0x2b0 сак 11 19:23:50 xps kernel: ? hrtimer_interrupt+0xf8/0x230 сак 11 19:23:50 xps kernel: ? __sysvec_apic_timer_interrupt+0x4d/0x140 сак 11 19:23:50 xps kernel: ? sysvec_apic_timer_interrupt+0x6d/0x90 сак 11 19:23:50 xps kernel: </IRQ> сак 11 19:23:50 xps kernel: <TASK> сак 11 19:23:50 xps kernel: ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 сак 11 19:23:50 xps kernel: ? native_queued_spin_lock_slowpath+0x6e/0x2e0 сак 11 19:23:50 xps kernel: ? __mod_lruvec_page_state+0x99/0x130 сак 11 19:23:50 xps kernel: _raw_spin_lock+0x29/0x30 сак 11 19:23:50 xps kernel: zswap_load+0x9c/0x4b0 сак 11 19:23:50 xps kernel: swap_readpage+0x81/0x460 сак 11 19:23:50 xps kernel: swapin_readahead+0x1de/0x560 сак 11 19:23:50 xps kernel: do_swap_page+0x460/0xcd0 сак 11 19:23:50 xps kernel: ? vfs_read+0xac/0x320 сак 11 19:23:50 xps kernel: ? __pte_offset_map+0x1b/0x180 сак 11 19:23:50 xps kernel: __handle_mm_fault+0x7e7/0xda0 сак 11 19:23:50 xps kernel: handle_mm_fault+0x17f/0x360 сак 11 19:23:50 xps kernel: do_user_addr_fault+0x15b/0x670 сак 11 19:23:50 xps kernel: exc_page_fault+0x7f/0x180 сак 11 19:23:50 xps kernel: asm_exc_page_fault+0x26/0x30 сак 11 19:23:50 xps kernel: RIP: 0033:0x7c75734b98b7 сак 11 19:23:50 xps kernel: Code: 00 00 00 0f b7 0c 6a 66 85 c9 0f 84 12 ff ff ff 48 8d 7d 10 48 8b 04 fa a8 0f 0f 85 93 01 00 00 48 89 c6 83 e9 01 48 c1 ee 0c <48> 33 30 4> сак 11 19:23:50 xps kernel: RSP: 002b:00007ffc137fd1e0 EFLAGS: 00010202 сак 11 19:23:50 xps kernel: RAX: 000063dad99541f0 RBX: 0000000000000066 RCX: 0000000000000003 сак 11 19:23:50 xps kernel: RDX: 000063dad9004010 RSI: 000000063dad9954 RDI: 0000000000000015 сак 11 19:23:50 xps kernel: RBP: 0000000000000005 R08: ffffffffffffffef R09: 0000000000000012 сак 11 19:23:50 xps kernel: R10: 000063dad90ec180 R11: bcf8c71ec051d275 R12: fffffffffffffef0 сак 11 19:23:50 xps kernel: R13: 000063dad9420fa0 R14: 00007ffc137fd368 R15: 00007c7573c1c810 сак 11 19:23:50 xps kernel: </TASK> сак 11 19:23:50 xps kernel: watchdog: BUG: soft lockup - CPU#8 stuck for 26s! [QXcbEventQueue:11633] сак 11 19:23:50 xps kernel: Modules linked in: ccm hid_logitech_hidpp usbhid veth xt_nat xt_tcpudp xt_conntrack xt_MASQUERADE nf_conntrack_netlink xfrm_user xfrm_algo iptab> сак 11 19:23:50 xps kernel: hid_sensor_trigger industrialio_triggered_buffer kfifo_buf hid_sensor_iio_common x86_pkg_temp_thermal intel_powerclamp industrialio coretemp hi> сак 11 19:23:50 xps kernel: dell_wmi_descriptor ledtrig_audio nvidia_uvm(POE) wmi_bmof cec rapl typec_ucsi snd_timer processor_thermal_wt_req cfg80211 intel_cstate spi_nor> сак 11 19:23:50 xps kernel: xhci_pci nvme_auth xhci_pci_renesas i8042 serio сак 11 19:23:50 xps kernel: CPU: 8 PID: 11633 Comm: QXcbEventQueue Tainted: P D W OEL 6.7.9-arch1-1 #1 ad54415bbff2f0801422a3b76df850f68e71ecab сак 11 19:23:50 xps kernel: Hardware name: Dell Inc. XPS 17 9720/0KNF8J, BIOS 1.21.0 11/13/2023 ``` SOFTWARE/OS VERSIONS Linux/KDE Plasma: 6.7.9-arch1-1 (64-bit) (available in About System) KDE Plasma Version: 6.0.1 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 Window system: X11 ADDITIONAL INFORMATION Laptop Dell XPS 17 9720
Baloo is unrelated here; this does indeed sound like a kernel issue so I'd recommend reporting it to your distro.