注意：这与#62203类似，但它是一个不同的代码路径，此版本包含了该修复。

CC @randall77@cuiweixie

这个错误似乎是很难复现的。

$x_{1}a_{0}b_{1}x$

@cuiweixie: are you sure it is actually running the test? On my machine (Apple M1), it can only do a couple hundred runs per 5s:

# go test ./vfs -run TestMapClone -exec 'stress -p 10' -v
194 runs so far, 0 failures, over 5s
405 runs so far, 0 failures, over 10s
^C559 runs completed, 0 failures, over 14s

P.S. A friendly request - please don't post long irrelevant backtraces, it makes the issue hard to navigate. E.g. it would have been sufficient to post just 11m0s: 433534 runs so far, 0 failures, 10 active .

对不起，我更改了迭代次数！
重新运行！

它花了大约7分钟才崩溃。但我现在再试一次，11分钟内没有崩溃。可能需要很长时间。
请注意，在 cockroachdb/pebble#3894 中，我们看到了地址0( signal SIGSEGV: segmentation violation code=0x80 addr=0x0 pc=0x417278] )上的故障。查看代码，我不认为这是如何发生的，除非源指针被损坏并且接近uint64的末尾范围，导致我们在访问时发生溢出。

我正在运行你的代码！
请勿复制！很悲伤！

➜  issue69110 git:(go1.22.5) ✗ go test -v . -run="TestMapClone" -exec "stress -p 10"
5s: 218 runs so far, 0 failures, 10 active
10s: 464 runs so far, 0 failures, 10 active
15s: 688 runs so far, 0 failures, 10 active
20s: 893 runs so far, 0 failures, 10 active
25s: 1113 runs so far, 0 failures, 10 active
30s: 1344 runs so far, 0 failures, 10 active
35s: 1585 runs so far, 0 failures, 10 active
40s: 1829 runs so far, 0 failures, 10 active
45s: 2067 runs so far, 0 failures, 10 active
50s: 2309 runs so far, 0 failures, 10 active
55s: 2551 runs so far, 0 failures, 10 active
1m0s: 2769 runs so far, 0 failures, 10 active
1m5s: 2968 runs so far, 0 failures, 10 active
1m10s: 3176 runs so far, 0 failures, 10 active
1m15s: 3415 runs so far, 0 failures, 10 active
1m20s: 3653 runs so far, 0 failures, 10 active
1m25s: 3892 runs so far, 0 failures, 10 active
1m30s: 4122 runs so far, 0 failures, 10 active
1m35s: 4338 runs so far, 0 failures, 10 active
1m40s: 4555 runs so far, 0 failures, 10 active
1m45s: 4779 runs so far, 0 failures, 10 active
1m50s: 5006 runs so far, 0 failures, 10 active
1m55s: 5216 runs so far, 0 failures, 10 active
2m0s: 5435 runs so far, 0 failures, 10 active
2m5s: 5668 runs so far, 0 failures, 10 active
2m10s: 5899 runs so far, 0 failures, 10 active
2m15s: 6092 runs so far, 0 failures, 10 active
2m20s: 6317 runs so far, 0 failures, 10 active
2m25s: 6553 runs so far, 0 failures, 10 active
2m30s: 6793 runs so far, 0 failures, 10 active
2m35s: 7036 runs so far, 0 failures, 10 active
2m40s: 7253 runs so far, 0 failures, 10 active
2m45s: 7481 runs so far, 0 failures, 10 active
2m50s: 7727 runs so far, 0 failures, 10 active
2m55s: 7972 runs so far, 0 failures, 10 active
3m0s: 8217 runs so far, 0 failures, 10 active
3m5s: 8467 runs so far, 0 failures, 10 active
3m10s: 8711 runs so far, 0 failures, 10 active
3m15s: 8955 runs so far, 0 failures, 10 active
3m20s: 9203 runs so far, 0 failures, 10 active
3m25s: 9448 runs so far, 0 failures, 10 active
3m30s: 9695 runs so far, 0 failures, 10 active
3m35s: 9938 runs so far, 0 failures, 10 active
3m40s: 10184 runs so far, 0 failures, 10 active
3m45s: 10430 runs so far, 0 failures, 10 active
3m50s: 10674 runs so far, 0 failures, 10 active
3m55s: 10923 runs so far, 0 failures, 10 active
4m0s: 11170 runs so far, 0 failures, 10 active
4m5s: 11413 runs so far, 0 failures, 10 active
4m10s: 11616 runs so far, 0 failures, 10 active
4m15s: 11833 runs so far, 0 failures, 10 active
4m20s: 12047 runs so far, 0 failures, 10 active
4m25s: 12243 runs so far, 0 failures, 10 active
4m30s: 12418 runs so far, 0 failures, 10 active
4m35s: 12547 runs so far, 0 failures, 10 active
4m40s: 12712 runs so far, 0 failures, 10 active
4m45s: 12917 runs so far, 0 failures, 10 active
4m50s: 13143 runs so far, 0 failures, 10 active
4m55s: 13388 runs so far, 0 failures, 10 active
5m0s: 13635 runs so far, 0 failures, 10 active
5m5s: 13877 runs so far, 0 failures, 10 active
5m10s: 14091 runs so far, 0 failures, 10 active
5m15s: 14335 runs so far, 0 failures, 10 active
5m20s: 14582 runs so far, 0 failures, 10 active
5m25s: 14829 runs so far, 0 failures, 10 active
5m30s: 15078 runs so far, 0 failures, 10 active
5m35s: 15321 runs so far, 0 failures, 10 active
5m40s: 15566 runs so far, 0 failures, 10 active
5m45s: 15808 runs so far, 0 failures, 10 active
5m50s: 16051 runs so far, 0 failures, 10 active
5m55s: 16296 runs so far, 0 failures, 10 active
6m0s: 16544 runs so far, 0 failures, 10 active
6m5s: 16784 runs so far, 0 failures, 10 active
6m10s: 17029 runs so far, 0 failures, 10 active
6m15s: 17269 runs so far, 0 failures, 10 active
6m20s: 17499 runs so far, 0 failures, 10 active
6m25s: 17744 runs so far, 0 failures, 10 active
6m30s: 17992 runs so far, 0 failures, 10 active
6m35s: 18235 runs so far, 0 failures, 10 active
6m40s: 18482 runs so far, 0 failures, 10 active
6m45s: 18722 runs so far, 0 failures, 10 active
6m50s: 18970 runs so far, 0 failures, 10 active
6m55s: 19217 runs so far, 0 failures, 10 active
7m0s: 19462 runs so far, 0 failures, 10 active
7m5s: 19705 runs so far, 0 failures, 10 active
7m10s: 19930 runs so far, 0 failures, 10 active
7m15s: 20170 runs so far, 0 failures, 10 active
7m20s: 20419 runs so far, 0 failures, 10 active
7m25s: 20664 runs so far, 0 failures, 10 active
7m30s: 20899 runs so far, 0 failures, 10 active
7m35s: 21138 runs so far, 0 failures, 10 active
7m40s: 21382 runs so far, 0 failures, 10 active
7m45s: 21627 runs so far, 0 failures, 10 active
7m50s: 21871 runs so far, 0 failures, 10 active
7m55s: 22116 runs so far, 0 failures, 10 active
8m0s: 22363 runs so far, 0 failures, 10 active
8m5s: 22609 runs so far, 0 failures, 10 active
8m10s: 22857 runs so far, 0 failures, 10 active
8m15s: 23101 runs so far, 0 failures, 10 active
8m20s: 23312 runs so far, 0 failures, 10 active
8m25s: 23560 runs so far, 0 failures, 10 active
8m30s: 23802 runs so far, 0 failures, 10 active
8m35s: 24048 runs so far, 0 failures, 10 active
8m40s: 24290 runs so far, 0 failures, 10 active
8m45s: 24507 runs so far, 0 failures, 10 active
8m50s: 24741 runs so far, 0 failures, 10 active
8m55s: 24988 runs so far, 0 failures, 10 active
9m0s: 25233 runs so far, 0 failures, 10 active
9m5s: 25477 runs so far, 0 failures, 10 active
9m10s: 25722 runs so far, 0 failures, 10 active
9m15s: 25960 runs so far, 0 failures, 10 active
9m20s: 26202 runs so far, 0 failures, 10 active
9m25s: 26430 runs so far, 0 failures, 10 active
9m30s: 26647 runs so far, 0 failures, 10 active
9m35s: 26838 runs so far, 0 failures, 10 active
9m40s: 27073 runs so far, 0 failures, 10 active
9m45s: 27287 runs so far, 0 failures, 10 active
9m50s: 27536 runs so far, 0 failures, 10 active
9m55s: 27777 runs so far, 0 failures, 10 active
10m0s: 28025 runs so far, 0 failures, 10 active
10m5s: 28267 runs so far, 0 failures, 10 active
10m10s: 28479 runs so far, 0 failures, 10 active
10m15s: 28709 runs so far, 0 failures, 10 active
10m20s: 28950 runs so far, 0 failures, 10 active
10m25s: 29193 runs so far, 0 failures, 10 active
10m30s: 29438 runs so far, 0 failures, 10 active
10m35s: 29678 runs so far, 0 failures, 10 active
10m40s: 29921 runs so far, 0 failures, 10 active
10m45s: 30158 runs so far, 0 failures, 10 active
10m50s: 30401 runs so far, 0 failures, 10 active
10m55s: 30645 runs so far, 0 failures, 10 active

这可能需要一段时间，我会将超时时间增加到例如1小时。我在不同版本的测试上运行了多次，直到我看到崩溃，所以它可能是一个特别幸运的运行。