[Bug 283895] kernel: Fatal trap 12: page fault while in kernel mode

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 06 Jan 2025 22:35:33 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=283895

            Bug ID: 283895
           Summary: kernel: Fatal trap 12: page fault while in kernel mode
           Product: Base System
           Version: 14.2-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: johntdarrah@gmail.com

14.2-RELEASE-p0

kernel: Fatal trap 12: page fault while in kernel mode
kernel: cpuid = 2; apic id = 02
kernel: fault virtual address   = 0x5c
kernel: fault code              = supervisor read data, page not present
kernel: instruction pointer     = 0x20:0xffffffff821ed0c9
kernel: stack pointer           = 0x28:0xfffffe01442725a0
kernel: frame pointer           = 0x28:0xfffffe01442725e0
kernel: code segment            = base rx0, limit 0xfffff, type 0x1b
kernel:                         = DPL 0, pres 1, long 1, def32 0, gran 1
kernel: processor eflags        = interrupt enabled, resume, IOPL = 0
kernel: current process         = 4698 (pkg)
kernel: rdi: ffffffff824b1d40 rsi: 89cadb0d77df630a rdx: fb07dd1e3ec0c464
kernel: rcx: 0000000000000078  r8: 01b5ca7c2137e8b3  r9: df95c4a4189833e0
kernel: rax: 000000000000005c rbx: fffff802d34e7740 rbp: fffffe01442725e0
kernel: r10: 0000000000000180 r11: fffff8051dff0a08 r12: 00000000000005a8
kernel: r13: 000000000002cbfd r14: fffffe01442726f8 r15: 000000000032bda8
kernel: trap number             = 12
kernel: panic: page fault
kernel: cpuid = 2
kernel: time = 1736067785
kernel: KDB: stack backtrace:
kernel: #0 0xffffffff80b8b89d at kdb_backtrace+0x5d
kernel: #1 0xffffffff80b3dc01 at vpanic+0x131
kernel: #2 0xffffffff80b3dac3 at panic+0x43
kernel: #3 0xffffffff81025a0b at trap_fatal+0x40b
kernel: #4 0xffffffff81025a56 at trap_pfault+0x46
kernel: #5 0xffffffff80ffc398 at calltrap+0x8
kernel: #6 0xffffffff821ebc83 at arc_read+0x1c3
kernel: #7 0xffffffff82208a13 at dbuf_issue_final_prefetch+0x93
kernel: #8 0xffffffff822080c4 at dbuf_prefetch_impl+0x434
kernel: #9 0xffffffff82230b32 at dmu_zfetch_run+0x1c2
kernel: #10 0xffffffff82212815 at dmu_buf_hold_array_by_dnode+0x2a5
kernel: #11 0xffffffff8221406a at dmu_read_uio_dnode+0x3a
kernel: #12 0xffffffff8221419e at dmu_read_uio_dbuf+0x3e
kernel: #13 0xffffffff823611ca at zfs_read+0x1ea
kernel: #14 0xffffffff821cb4e9 at zfs_freebsd_read+0x39
kernel: #15 0xffffffff810eb780 at VOP_READ_APV+0x20
kernel: #16 0xffffffff80c429ec at vn_read+0x1ec
kernel: #17 0xffffffff80c42755 at vn_io_fault_doio+0x45

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