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A shared-memory region draws each page's frame at its first touch - #1270

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shm-first-touch

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A shared-memory region draws each page's frame at its first touch#1270
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shm-first-touch

Commits on Nov 12, 2026
- A shared-memory region draws each page's frame at its first touch
  
  Japabu
  and
  claude
  committed
  11aba74
- issues: what the first-touch region owes on metal
  
  Japabu
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  claude
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  173d9b1
- Review r1 of #1270: a page draws once, under its region's first-touch lock
  
  Japabu
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  claude
  committed
  59383b4
- An object range's fault draws its run's holes in one hold of the allocator's lock
  
  Japabu
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  claude
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  919f273
- Review r3 of #1270: the record says how a region is drawn now, and the install zips holes with draws
  
  Japabu
  and
  claude
  committed
  e37586c