`linux.xarch` failing on newer kernel

`linux.xarch` is failing on my workstation running Linux 7.0.11

Whole log

```bash
$ ctest -V -R linux.xarch
UpdateCTestConfiguration from :/home/binwang/projects/dynamorio/build/DartConfiguration.tcl
Parse Config file:/home/binwang/projects/dynamorio/build/DartConfiguration.tcl
UpdateCTestConfiguration from :/home/binwang/projects/dynamorio/build/DartConfiguration.tcl
Parse Config file:/home/binwang/projects/dynamorio/build/DartConfiguration.tcl
Test project /home/binwang/projects/dynamorio/build
Constructing a list of tests
Done constructing a list of tests
Updating test list for fixtures
Added 0 tests to meet fixture requirements
Checking test dependency graph...
Checking test dependency graph end
test 32
Start 32: linux.xarch

32: Test command: /usr/bin/ctest "-V" "--build-and-test" "/home/binwang/projects/dynamorio" "/home/binwang/projects/dynamorio/build/suite/tests/32bit" "--build-generator" "Unix Makefiles" "--build-target" "dynamorio" "--build-target" "linux.execve32" "--build-target" "linux.execve-sub32" "--build-target" "client.large_options.dll" "--build-noclean" "--build-makeprogram" "/usr/bin/gmake" "--build-options" "-DDEBUG=ON" "-DBUILD_TESTS=ON" "-DBUILD_DOCS=OFF" "-DBUILD_SAMPLES=OFF" "-DBUILD_EXT=OFF" "-DBUILD_CLIENTS=OFF" "--test-command" "/usr/bin/cmake" "-P" "/home/binwang/projects/dynamorio/build/suite/tests/linux.xarch.cmake"
32: Working Directory: /home/binwang/projects/dynamorio/build/suite/tests
32: Environment variables:
32: CFLAGS=-m32
32: CXXFLAGS=-m32
32: Test timeout computed to be: 1500
32: Internal cmake changing into directory: /home/binwang/projects/dynamorio/build/suite/tests/32bit
32: ======== CMake output ======
32: CMake version 3.28.3
32: Building for x86
32: Processor vendor is AuthenticAMD
32: Version number: 11.91.20612
32: Compiler and processor support AVX.
32: Compiler and processor support AVX2.
32: Compiler and processor support AVX-512.
32: PT related libraries only supported on Linux x86_64
32: For dbghelp, choosing among:
32: Could NOT find ZLIB (missing: ZLIB_LIBRARY) (found version "1.3")
32: WARNING: vera++ not found: disabling code style checks
32: Processing tests and generating expected output patterns
32: Configuring done (1.7s)
32: Generating done (0.3s)
32: Build files have been written to: /home/binwang/projects/dynamorio/build/suite/tests/32bit
32: ======== End CMake output ======
32: Change Dir: '/home/binwang/projects/dynamorio/build/suite/tests/32bit'
32:
32: Run Build Command(s): /usr/bin/gmake -f Makefile dynamorio
32: [ 0%] Built target dynamorio_ldscript
32: [ 0%] Built target api_headers
32: [ 0%] Built target generate_syslog
32: [ 0%] Built target drmemfuncs
32: [ 11%] Built target drlibc
32: [100%] Built target dynamorio
32:
32: Change Dir: '/home/binwang/projects/dynamorio/build/suite/tests/32bit'
32:
32: Run Build Command(s): /usr/bin/gmake -f Makefile linux.execve32
32: [ 0%] Built target generate_syslog
32: [ 50%] Built target drlibc
32: [100%] Built target tools
32: [100%] Built target linux.execve32
32:
32: Change Dir: '/home/binwang/projects/dynamorio/build/suite/tests/32bit'
32:
32: Run Build Command(s): /usr/bin/gmake -f Makefile linux.execve-sub32
32: [ 0%] Built target generate_syslog
32: [ 50%] Built target drlibc
32: [100%] Built target tools
32: [100%] Built target linux.execve-sub32
32:
32: Change Dir: '/home/binwang/projects/dynamorio/build/suite/tests/32bit'
32:
32: Run Build Command(s): /usr/bin/gmake -f Makefile client.large_options.dll
32: [ 0%] Built target dynamorio_ldscript
32: [ 0%] Built target api_headers
32: [ 0%] Built target generate_syslog
32: [ 0%] Built target drmemfuncs
32: [ 11%] Built target drlibc
32: [100%] Built target dynamorio
32: [100%] Built target client.large_options.dll
32:
32: Running test command: "/usr/bin/cmake" "-P" "/home/binwang/projects/dynamorio/build/suite/tests/linux.xarch.cmake"
32: vm_end - iter->vm_start == PAGE_SIZE || iter->vm_end - iter->vm_start == 2 * PAGE_SIZE
32: (Error occurred @0 frags in tid 72754)
32: version 11.91.20612, custom build
32: -no_dynamic_options -client_lib '/home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so;0;"-paramA" "foo" "-paramB" "bar"' -client_lib32 '/home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so;0;"-paramA" "foo" "-paramB" "ba
32: 0xffa4aab8 0xf7bf3137
32: 0xffa4acf8 0xf7da9214
32: 0xffa4ad18 0xf7da9530
32: 0xffa4ad88 0xf7da9ca1
32: 0xffa4ae48 0xf7c8d078
32: 0xffa4aed8 0xf7b75559
32: 0xffa4b708 0xf7dcc62f
32: 0xffa4c018 0xf7d7f289
32: /home/binwang/projects/dynamorio/build/suite/tests/32bit/lib32/debug/libdynamorio.so=0xf7b44000
32: /home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so=0xf7aff000
32: /usr/lib32/libc.so.6=0xf769f000
32: /usr/lib/ld-linux.so.2=0xf7ac9000>
32: large_options passed: -paramA foo -paramB bar
32: parent is running under DynamoRIO
32: parent waiting for child
32: child is running under DynamoRIO
32: vm_end - iter->vm_start == PAGE_SIZE || iter->vm_end - iter->vm_start == 2 * PAGE_SIZE
32: (Error occurred @0 frags in tid 72756)
32: version 11.91.20612, custom build
32: -client_lib '/home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so;0;"-paramA" "foo" "-paramB" "bar"' -client_lib32 '/home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so;0;"-paramA" "foo" "-paramB" "bar"' -client_lib64 '/
32: 0xff846068 0xf7c96137
32: 0xff8462a8 0xf7e4c214
32: 0xff8462c8 0xf7e4c530
32: 0xff846338 0xf7e4cca1
32: 0xff8463f8 0xf7d30078
32: 0xff846488 0xf7c18559
32: 0xff846cb8 0xf7e6f62f
32: 0xff8475c8 0xf7e22289
32: /home/binwang/projects/dynamorio/build/suite/tests/32bit/lib32/debug/libdynamorio.so=0xf7be7000
32: /home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so=0xf7ba2000
32: /usr/lib32/libc.so.6=0xf7742000
32: /usr/lib/ld-linux.so.2=0xf7b6c000>
32: child has exited
32: large_options exiting
32: vm_end - iter->vm_start == PAGE_SIZE || iter->vm_end - iter->vm_start == 2 * PAGE_SIZE
32: (Error occurred @0 frags in tid 72759)
32: version 11.91.20612, custom build
32: -no_dynamic_options -client_lib '/home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so;0;"-paramA" "foo" "-paramB" "bar"' -client_lib32 '/home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so;0;"-paramA" "foo" "-paramB" "ba
32: 0xff81a358 0xf7c27137
32: 0xff81a598 0xf7ddd214
32: 0xff81a5b8 0xf7ddd530
32: 0xff81a628 0xf7dddca1
32: 0xff81a6e8 0xf7cc1078
32: 0xff81a778 0xf7ba9559
32: 0xff81afa8 0xf7e0062f
32: 0xff81b8b8 0xf7db3289
32: /home/binwang/projects/dynamorio/build/suite/tests/32bit/lib32/debug/libdynamorio.so=0xf7b78000
32: /home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so=0xf7b33000
32: /usr/lib32/libc.so.6=0xf76d3000
32: /usr/lib/ld-linux.so.2=0xf7afd000>
32: large_options passed: -paramA foo -paramB bar
32: parent is running under DynamoRIO
32: parent waiting for child
32: child is running under DynamoRIO
32: vm_end - iter->vm_start == PAGE_SIZE || iter->vm_end - iter->vm_start == 2 * PAGE_SIZE
32: (Error occurred @0 frags in tid 72761)
32: version 11.91.20612, custom build
32: -client_lib '/home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so;0;"-paramA" "foo" "-paramB" "bar"' -client_lib32 '/home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so;0;"-paramA" "foo" "-paramB" "bar"' -client_lib64 '/
32: 0xffa833a8 0xf7c9e137
32: 0xffa835e8 0xf7e54214
32: 0xffa83608 0xf7e54530
32: 0xffa83678 0xf7e54ca1
32: 0xffa83738 0xf7d38078
32: 0xffa837c8 0xf7c20559
32: 0xffa83ff8 0xf7e7762f
32: 0xffa84908 0xf7e2a289
32: /home/binwang/projects/dynamorio/build/suite/tests/32bit/lib32/debug/libdynamorio.so=0xf7bef000
32: /home/binwang/projects/dynamorio/build/suite/tests/32bit/suite/tests/bin/libclient.large_options.dll.so=0xf7baa000
32: /usr/lib32/libc.so.6=0xf774a000
32: /usr/lib/ld-linux.so.2=0xf7b74000>
32: child has exited
32: large_options exiting
32:
1/1 Test #32: linux.xarch ......................***Failed Required regular expression not found. Regex=[.*large_options passed: -paramA foo -paramB bar
parent is running under DynamoRIO
parent waiting for child
child is running under DynamoRIO
large_options passed: -paramA foo -paramB bar
it_worked
running under DynamoRIO
large_options exiting
child has exited
large_options exiting
[
]*large_options passed: -paramA foo -paramB bar
parent is running under DynamoRIO
parent waiting for child
child is running under DynamoRIO
large_options passed: -paramA foo -paramB bar
it_worked
running under DynamoRIO
large_options exiting
child has exited
large_options exiting
[
]*large_options passed: -paramA foo -paramB bar
parent is running under DynamoRIO
parent waiting for child
child is running under DynamoRIO
large_options passed: -paramA foo -paramB bar
it_worked
running under DynamoRIO
large_options exiting
child has exited
large_options exiting
[
]*large_options passed: -paramA foo -paramB bar
parent is running under DynamoRIO
parent waiting for child
child is running under DynamoRIO
large_options passed: -paramA foo -paramB bar
it_worked
running under DynamoRIO
large_options exiting
child has exited
large_options exiting
[
]*$
] 3.18 sec

0% tests passed, 1 tests failed out of 1

Total Test time (real) = 3.25 sec

The following tests FAILED:
32 - linux.xarch (Failed)
Errors while running CTest
Output from these tests are in: /home/binwang/projects/dynamorio/build/Testing/Temporary/LastTest.log
Use "--rerun-failed --output-on-failure" to re-run the failed cases verbosely.
```

The most relevant part is
```
Internal Error: DynamoRIO debug check failure: /home/binwang/projects/dynamorio/core/unix/os.c:10121 iter->vm_end - iter->vm_start == PAGE_SIZE || iter->vm_end - iter->vm_start == 2 * PAGE_SIZE
32: (Error occurred @0 frags in tid 72754)
```

This assertion is in `found_vsyscall_page()`
https://github.com/DynamoRIO/dynamorio/blob/a9afda3c70dd1f4c37a78f3ef93c0b4e70925d44/core/unix/os.c#L10114-L10123
So the vdso region is neither 1 page or 2 pages. Checking my `/proc//maps`, the results are:
```
f7f1f000-f7f23000 r--p 00000000 00:00 0 [vvar]
f7f23000-f7f25000 r--p 00000000 00:00 0 [vvar_vclock]
f7f25000-f7f28000 r-xp 00000000 00:00 0 [vdso]
```

so it's actually 3 pages now.