Looking locally I'm seeing 4 x 6GB anon mappings with no permissions:
```
erahm@shetland:/var/dev/erahm/mozilla-unified$ pmap 10493 | grep '62.*K'
00007fa3f3220000 6291328K ----- [ anon ]
00007fa57357e000 6289792K ----- [ anon ]
00007fa6f345f000 6291008K ----- [ anon ]
00007fa873510000 6290368K ----- [ anon ]
```
Seems likely these are wasm guard pages, it's odd they're not being reported. For example loading wasm by example I see:
> 6,441,402,368 B ── wasm-guard-pages
6,441,402,368 / 1024 = 6290432K which looks about right.
Bug 1615988 Comment 13 Edit History
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Looking locally I'm seeing 4 x 6GB anon mappings with no permissions: ``` erahm@shetland:/var/dev/erahm/mozilla-unified$ pmap 10493 | grep '62.*K' 00007fa3f3220000 6291328K ----- [ anon ] 00007fa57357e000 6289792K ----- [ anon ] 00007fa6f345f000 6291008K ----- [ anon ] 00007fa873510000 6290368K ----- [ anon ] ``` Seems likely these are wasm guard pages, it's odd they're not being reported. For example loading [wasm by example](https://wasmbyexample.dev/examples/hello-world/hello-world.rust.en-us.html) I see: > 6,441,402,368 B ── wasm-guard-pages 6,441,402,368 / 1024 = 6290432K which looks about right.