# DF-2889 PoC evidence pack

## What
vm_contig_pg_clean re-validation predicate is wrong: colored page queues never contribute pages to contigmalloc reclaim.

## Build
```
make -C rig (KMOD dfv_safe)
```

## Run
```
kldload smbfs; kldload dfv_safe.ko; sysctl -w dfv.q2889=1; dmesg | grep DF2889
```

## Expected
dmesg: colored queues q=1..1023 hold N pages, buggy predicate passes 0, fixed predicate passes N

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).