DF-2423 / env.txt
== uname ==
DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #2: Mon Oct 19 11:32:07 UTC 2026 root@dfbsd:/usr/obj/usr/src/sys/DFX2423 x86_64
== ident ==
DragonFly 6.5-DEVELOPMENT #2: Mon Oct 19 11:32:07 UTC 2026
root@dfbsd:/usr/obj/usr/src/sys/DFX2423
== cc ==
cc 8.3 [DragonFly] Release/2019-02-22
== ahci in kernel config ==
56:options INVARIANTS
65:device ahci
== kldstat ==
Id Refs Address Size Name
1 5 0xffffffff80200000 1adb980 kernel
2 1 0xffffffff81cdc000 7c288 ehci.ko
3 1 0xffffffff81d59000 8c778 xhci.ko
== sc_ncmds (AHCI cmd slots) ==
== xpt dev perms ==
crw------- 1 root operator 30, 0x00000000 Oct 19 11:36 /dev/pass0
crw------- 1 root operator 28, 0x00000000 Oct 19 11:36 /dev/xpt0
== TU hashes ==
8a42cfdb25441c8c619daced4f029c8fe60dddc244a8179194413d05163a987f
== harness ==
8c3f8d929393b117274cfbb5762fd1511ae38968ac7e3ab72ddd0724f4aad38e
== page-0 mmap policy (privesc close, guest-verified 2026-10-19) ==
mmap(FIXED,0) -> 0x0 errno=0 (page mapped)
page0 writable, readback=4141414141414141
=> DragonFly allows user MAP_FIXED page 0; relevant only if the deref ever
ran in a user vmm context (none does today: /dev/xpt0 /dev/passN are
0600 root:operator; async-notify path runs in kernel threads).