Примерно раз в сутки, падает X Server и lightdm его перезапускает. [23663.497490] ------------[ cut here ]------------ [23663.497495] bucket->value > rq_clamp [23663.497520] WARNING: CPU: 0 PID: 31889 at kernel/sched/core.c:1019 dequeue_task+0x274/0x290 [23663.497522] Modules linked in: btrfs blake2b_generic dm_mod algif_hash algif_skcipher af_alg bnep hci_uart btbcm serdev bluetooth ecdh_generic joydev brcmfmac brcmutil cfg80211 rfkill bcm2835_codec(C) bcm2835_v4l2(C) videobuf2_dma_contig videobuf2_vmalloc v4l2_mem2mem videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc uio_pdrv_genirq sch_fq_codel autofs4 [23663.497550] CPU: 0 PID: 31889 Comm: AudioIPC0 Tainted: G WC 5.6.2-rpi-un-alt2 #2 [23663.497552] Hardware name: Raspberry Pi 4 Model B Rev 1.2 (DT) [23663.497556] pstate: 60000085 (nZCv daIf -PAN -UAO) [23663.497559] pc : dequeue_task+0x274/0x290 [23663.497562] lr : dequeue_task+0x274/0x290 [23663.497564] sp : ffff800014c4ba40 [23663.497565] x29: ffff800014c4ba40 x28: ffff0000c1e241d0 [23663.497569] x27: ffff0000c1e23b80 x26: 0000000000000000 [23663.497572] x25: 0000000000000001 x24: ffff800012311150 [23663.497574] x23: ffff800012bb31d5 x22: 0000000000000000 [23663.497577] x21: ffff0000fb7a7b80 x20: 0000000000000000 [23663.497579] x19: ffff0000fb7a7c00 x18: 0000000000000000 [23663.497581] x17: 0000000000000000 x16: 0000000000000000 [23663.497584] x15: 0000000000000000 x14: 0000000000000000 [23663.497586] x13: 0000000000000000 x12: ffff800012c08000 [23663.497588] x11: ffff800012941000 x10: ffff800012c088c8 [23663.497591] x9 : ffff800010152044 x8 : 203e2065756c6176 [23663.497594] x7 : 3e2d74656b637562 x6 : ffff800012c08928 [23663.497596] x5 : 0000000000000018 x4 : 0000000000000000 [23663.497598] x3 : 0000000000000001 x2 : ffff8000128e7c90 [23663.497601] x1 : 53a2e42bbae8b700 x0 : 0000000000000000 [23663.497604] Call trace: [23663.497607] dequeue_task+0x274/0x290 [23663.497610] deactivate_task+0x48/0x50 [23663.497615] __schedule+0x554/0x670 [23663.497617] schedule+0x50/0xd8 [23663.497621] futex_wait_queue_me+0xcc/0x148 [23663.497625] futex_wait+0xf0/0x260 [23663.497628] do_futex+0x5b4/0xec0 [23663.497631] __arm64_sys_futex+0x11c/0x158 [23663.497635] el0_svc_common.constprop.2+0xa4/0x180 [23663.497638] do_el0_svc+0x28/0x88 [23663.497642] el0_sync_handler+0x134/0x1bc [23663.497644] el0_sync+0x140/0x180 [23663.497647] ---[ end trace 8cfa1c31ccb91867 ]--- Дистрибутив Simply Linux Beta для Raspberry Pi 4.
aceler@malinka:~$ uptime 15:06:18 up 61 days Будем считать, что больше не воспроизводится.