panic: brelse: non-VMIO buffer marked NOREUSE cpuid = 1 time = 1756140075 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056b55950 kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056b55ab0 vpanic() at vpanic+0x257/frame 0xfffffe0056b55c70 panic() at panic+0xb5/frame 0xfffffe0056b55d40 brelse() at brelse+0x1040/frame 0xfffffe0056b55de0 bufwrite() at bufwrite+0x49e/frame 0xfffffe0056b55e30 ffs_write() at ffs_write+0xa5f/frame 0xfffffe0056b55ff0 VOP_WRITE_APV() at VOP_WRITE_APV+0x28b/frame 0xfffffe0056b56210 vnode_pager_generic_putpages() at vnode_pager_generic_putpages+0x155b/frame 0xfffffe0056b56440 VOP_PUTPAGES_APV() at VOP_PUTPAGES_APV+0x87/frame 0xfffffe0056b56470 vnode_pager_putpages() at vnode_pager_putpages+0x189/frame 0xfffffe0056b56570 vm_pageout_flush() at vm_pageout_flush+0x20b/frame 0xfffffe0056b566b0 vm_pageout_cluster() at vm_pageout_cluster+0x532/frame 0xfffffe0056b569f0 vm_pageout_laundry_worker() at vm_pageout_laundry_worker+0x100e/frame 0xfffffe0056b56ef0 fork_exit() at fork_exit+0xcc/frame 0xfffffe0056b56f30 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0056b56f30 --- trap 0, rip = 0, rsp = 0, rbp = 0 --- KDB: enter: panic [ thread pid 8 tid 100080 ] Stopped at kdb_enter+0x6e: movq $0,0x25b6f77(%rip) db> db> set $lines = 0 db> set $maxwidth = 0 db> show registers cs 0x20 ds 0x3b es 0x3b fs 0x13 gs 0x1b ss 0x28 rax 0x12 rcx 0xfffffe0002bf1850 rdx 0 rbx 0xffffffff827e1820 .str.27 rsp 0xfffffe0056b55a90 rbp 0xfffffe0056b55ab0 rsi 0 rdi 0xffffffff816260e9 printf+0x149 r8 0 r9 0xffffffff r10 0x1 r11 0x33 r12 0xfffffe000782a000 r13 0xfffffffffffffffd r14 0xffffffff827e1820 .str.27 r15 0 rip 0xffffffff8160fc1e kdb_enter+0x6e rflags 0x46 kdb_enter+0x6e: movq $0,0x25b6f77(%rip) db> show proc Process 8 (pagedaemon) at 0xfffffe0054002558: state: NORMAL uid: 0 gids: 0 parent: pid 0 at 0xffffffff83b51080 ABI: null flag: 0x10000284 flag2: 0 reaper: 0xffffffff83b51080 reapsubtree: 8 sigparent: 20 vmspace: 0xffffffff83b52060 (map 0xffffffff83b52060) (map.pmap 0xffffffff83b52100) (pmap 0xffffffff83b52170) threads: 3 100077 Run CPU 0 [dom0] 100080 Run CPU 1 [laundry: dom0] 100081 RunQ [uma] db> ps pid ppid pgrp uid state wmesg wchan cmd 6853 6853 0 0 N syz-executor 6852 6852 0 0 N syz-executor 6851 6851 0 0 N syz-executor 6850 6850 0 0 N syz-executor 6849 6849 0 0 N syz-executor 6848 6848 0 0 N syz-executor 6847 6847 0 0 N syz-executor 6846 6846 0 0 N syz-executor 6845 6845 0 0 N syz-executor 6844 6844 0 0 N syz-executor 6843 6843 0 0 N syz-executor 6842 6842 0 0 N syz-executor 6841 6841 0 0 N syz-executor 6840 6840 0 0 N syz-executor 6839 6839 0 0 N syz-executor 6838 6838 0 0 N syz-executor 6837 6837 0 0 N syz-executor 6836 6836 0 0 N syz-executor 6835 6835 0 0 N syz-executor 6834 6834 0 0 N syz-executor 6833 6833 0 0 N syz-executor 6832 6832 0 0 N syz-executor 6831 6831 0 0 N syz-executor 6830 6830 0 0 N syz-executor 6829 6829 0 0 N syz-executor 6828 6828 0 0 N syz-executor 6827 6827 0 0 N syz-executor 6826 6826 0 0 N syz-executor 6825 6825 0 0 N syz-executor 6824 6824 0 0 N syz-executor 6823 6823 0 0 N syz-executor 6822 6822 0 0 N syz-executor 6821 6821 0 0 N syz-executor 6820 6820 0 0 N syz-executor 6819 6819 0 0 N syz-executor 6818 6818 0 0 N syz-executor 6817 6817 0 0 N syz-executor 6816 6816 0 0 N syz-executor 6815 6815 0 0 N syz-executor 6814 6814 0 0 N syz-executor 6813 6813 0 0 N syz-executor 6812 6812 0 0 N syz-executor 6811 6811 0 0 N syz-executor 6810 6810 0 0 N syz-executor 6809 6809 0 0 N syz-executor 6808 6808 0 0 N syz-executor 6807 6807 0 0 N syz-executor 6806 6806 0 0 N syz-executor 6805 6805 0 0 N syz-executor 6804 6804 0 0 N syz-executor 6803 6803 0 0 N syz-executor 6802 6802 0 0 N syz-executor 6801 6801 0 0 N syz-executor 6800 6800 0 0 N syz-executor 6799 6799 0 0 N syz-executor 6798 6798 0 0 N syz-executor 6797 6797 0 0 N syz-executor 6796 6796 0 0 N syz-executor 6795 6795 0 0 N syz-executor 6794 6794 0 0 N syz-executor 6793 6793 0 0 N syz-executor 6792 6792 0 0 N syz-executor 6791 6791 0 0 N syz-executor 6790 6790 0 0 N syz-executor 6789 6789 0 0 N syz-executor 6788 6788 0 0 N syz-executor 6787 6787 0 0 N syz-executor 6786 6786 0 0 N syz-executor 6785 6785 0 0 N syz-executor 6784 6784 0 0 N syz-executor 6783 6783 0 0 N syz-executor 6782 6782 0 0 N syz-executor 6781 6781 0 0 N syz-executor 6780 6780 0 0 N syz-executor 6779 6779 0 0 N syz-executor 6778 6778 0 0 N syz-executor 6777 6777 0 0 N syz-executor 6776 6776 0 0 N syz-executor 6775 6775 0 0 N syz-executor 6774 6774 0 0 N syz-executor 6773 6773 0 0 N syz-executor 6772 6772 0 0 N syz-executor 6771 6771 0 0 N syz-executor 6770 6770 0 0 N syz-executor 6769 6769 0 0 N syz-executor 6768 6768 0 0 N syz-executor 6767 6767 0 0 N syz-executor 6766 1420 1249 0 N syz-executor 6765 6765 0 0 N syz-executor 6764 6764 0 0 N syz-executor 6763 6763 0 0 N syz-executor 6762 6762 0 0 N syz-executor 6761 6761 0 0 N syz-executor 6760 6760 0 0 N syz-executor 6759 6759 0 0 N syz-executor 6758 6758 0 0 N syz-executor 6757 6757 0 0 N syz-executor 6756 6756 0 0 N syz-executor 6755 6755 0 0 N syz-executor 6754 6754 0 0 N syz-executor 6753 6753 0 0 N syz-executor 6752 6752 0 0 N syz-executor 6751 6751 0 0 N syz-executor 6750 6750 0 0 N syz-executor 6749 6749 0 0 N syz-executor 6748 6748 0 0 N syz-executor 6747 6747 0 0 N syz-executor 6746 6746 0 0 N syz-executor 6745 6745 0 0 N syz-executor 6744 6744 0 0 N syz-executor 6743 6743 0 0 N syz-executor 6742 6742 0 0 N syz-executor 6741 6741 0 0 N syz-executor 6740 6740 0 0 N syz-executor 6739 6739 0 0 N syz-executor 6738 6738 0 0 N syz-executor 6737 6737 0 0 N syz-executor 6736 6736 0 0 N syz-executor 6735 6735 0 0 N syz-executor 6734 6734 0 0 N syz-executor 6733 6733 0 0 N syz-executor 6732 6732 0 0 N syz-executor 6731 6731 0 0 N syz-executor 6730 6730 0 0 N syz-executor 6729 6729 0 0 N syz-executor 6728 6728 0 0 N syz-executor 6727 6727 0 0 N syz-executor 6726 6726 0 0 N syz-executor 6725 6725 0 0 N syz-executor 6724 6724 0 0 N syz-executor 6723 6723 0 0 N syz-executor 6722 6722 0 0 N syz-executor 6721 6721 0 0 N syz-executor 6720 6720 0 0 N syz-executor 6719 6719 0 0 N syz-executor 6718 6718 0 0 N syz-executor 6717 6717 0 0 N syz-executor 6716 6716 0 0 N syz-executor 6715 6715 0 0 N syz-executor 6714 6714 0 0 N syz-executor 6713 6713 0 0 N syz-executor 6712 6712 0 0 N syz-executor 6711 6711 0 0 N syz-executor 6710 6710 0 0 N syz-executor 6709 6709 0 0 N syz-executor 6708 6708 0 0 N syz-executor 6707 6707 0 0 N syz-executor 6706 6706 0 0 N syz-executor 6705 2063 1249 0 N syz-executor 6704 6704 0 0 N syz-executor 6703 2043 1249 0 N syz-executor 6702 4109 1249 0 N syz-executor 6701 3396 1249 0 N syz-executor 6700 1328 1249 0 N syz-executor 6699 6699 0 0 N syz-executor 6698 6698 0 0 N syz-executor 6697 6697 0 0 N syz-executor 6696 6696 0 0 N syz-executor 6695 6695 0 0 N syz-executor 6694 6694 0 0 N syz-executor 6693 6693 0 0 N syz-executor 6692 6692 0 0 N syz-executor 6691 6691 0 0 N syz-executor 6690 6690 0 0 N syz-executor 6689 6689 0 0 N syz-executor 6688 6688 0 0 N syz-executor 6687 6687 0 0 N syz-executor 6686 6686 0 0 N syz-executor 6685 6685 0 0 N syz-executor 6684 6684 0 0 N syz-executor 6683 6683 0 0 N syz-executor 6682 6682 0 0 N syz-executor 6681 6681 0 0 N syz-executor 6680 6680 0 0 N syz-executor 6679 6679 0 0 N