[Bug 202305] panic ARM64TODO: pmap_sync_icache triggered by lib/libproc/proc_test:symbol_lookup test

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202305

            Bug ID: 202305
           Summary: panic ARM64TODO: pmap_sync_icache triggered by
                    lib/libproc/proc_test:symbol_lookup test
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: arm64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: emaste at freebsd.org

lib/libproc/proc_test:symbol_lookup


panic: ARM64TODO: pmap_sync_icache
    panic() at pmap_sync_icache+0x10
             pc = 0xffffff8000215c4c  lr = 0xffffff8000497c94
             sp = 0xffffff804004c5a0  fp = 0xffffff804004c5a0

    pmap_sync_icache() at proc_rwmem+0x104
             pc = 0xffffff8000497c94  lr = 0xffffff8000270540
             sp = 0xffffff804004c5b0  fp = 0xffffff804004c610

    proc_rwmem() at kern_ptrace+0xc80
             pc = 0xffffff8000270540  lr = 0xffffff8000271448
             sp = 0xffffff804004c620  fp = 0xffffff804004c7a0

    kern_ptrace() at sys_ptrace+0xd4
             pc = 0xffffff8000271448  lr = 0xffffff80002706e0
             sp = 0xffffff804004c7b0  fp = 0xffffff804004c9e0

    sys_ptrace() at do_el0_sync+0x3b4
             pc = 0xffffff80002706e0  lr = 0xffffff800049914c
             sp = 0xffffff804004c9f0  fp = 0xffffff804004caa0

    do_el0_sync() at handle_el0_sync+0x68
             pc = 0xffffff800049914c  lr = 0xffffff800048a9e4
             sp = 0xffffff804004cab0  fp = 0x0000007fffffe490

    handle_el0_sync() at 0x401b98
             pc = 0xffffff800048a9e4  lr = 0x0000000000401b98
             sp = 0x0000007fffffe4a0  fp = 0x0000007fffffe4f0

    $d.6() at 0x404b0abc
             pc = 0x0000000000401b98  lr = 0x00000000404b0abc
             sp = 0x0000007fffffe500  fp = 0x0000007fffffe950
...

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