# DF-2939 PoC evidence pack

## What
dev_pager_dealloc runs the cdev dtor before unlinking: racing allocate clobbers si_object -> later KKASSERT panic.

## Build
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## Run
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(none)
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## Expected
static confirmation (no legacy d_mmap device on guest)

Guest: DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:04 UTC 2026     root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64
All logs are full untrimmed captures unless noted. fix.diff is the
git-apply-able verified fix (authored after verification; never applied
to the audit tree).