Updating to 2.4.5-RELEASE-p1 with USB-WiFi adapter 'rum' (Ralink) crashed

[lexxai]

Was updating to 2.4.5-RELEASE-p1 with inserted USB-WiFi adapter 'rum' (Ralink) that work as sowftware access point.

After updating have infinite reboot cycle...
When was deattached USB-WiFi adapter, 2.4.5-RELEASE-p1 was booted ok.
After success load pfSense, I attach back USB-WiFi adapter:

rum0: <Ralink 802.11 bg WLAN, class 0/0, rev 2.00/0.01, addr 2> on usbus1
rum0: MAC/BBP RT2573 (rev 0x2573a), RF RT2528

Not crashed.
But after when I disable/enable WiFi interface via GUI - crashed.
For now work without WiFi.

pfSense has detected a crash report or programming bug. Click here for more information.

Cash report begins.  Anonymous machine information:

amd64
11.3-STABLE
FreeBSD 11.3-STABLE #243 abf8cba50ce(RELENG_2_4_5): Tue Jun  2 17:53:37 EDT 2020     root@buildbot1-nyi.netgate.com:/build/ce-crossbuild-245/obj/amd64/YNx4Qq3j/build/ce-crossbuild-245/sources/FreeBSD-src/sys/pfSense

Crash report details:

No PHP errors found.

Filename: /var/crash/info.0
Dump header from device: /dev/label/swap0
  Architecture: amd64
  Architecture Version: 1
  Dump Length: 71680
  Blocksize: 512
  Dumptime: Thu Jun 25 18:52:24 2020
  Magic: FreeBSD Text Dump
  Version String: FreeBSD 11.3-STABLE #243 abf8cba50ce(RELENG_2_4_5): Tue Jun  2 17:53:37 EDT 2020
    root@buildbot1-nyi.netgate.com:/build/ce-crossbuild-245/obj/amd64/YNx4Qq3j/build/ce-crossbuild-245/source
  Panic String: page fault
  Dump Parity: 766095104
  Bounds: 0
  Dump Status: good

info.txt textdump.tar

[jimp]

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x10
fault code		= supervisor write data, page not present
instruction pointer	= 0x20:0xffffffff80e13a92
stack pointer	        = 0x28:0xfffffe004f6feab0
frame pointer	        = 0x28:0xfffffe004f6feab0
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 0 (rum0 net80211 taskq)
trap number		= 12
panic: page fault
cpuid = 0
KDB: enter: panic

db:0:kdb.enter.default>  show pcpu
cpuid        = 0
dynamic pcpu = 0x85f580
curthread    = 0xfffff8002e2e0620: pid 0 "rum0 net80211 taskq"
curpcb       = 0xfffffe004f6fecc0
fpcurthread  = none
idlethread   = 0xfffff800042e0000: tid 100003 "idle: cpu0"
curpmap      = 0xffffffff834f1c40
tssp         = 0xffffffff835a32d0
commontssp   = 0xffffffff835a32d0
rsp0         = 0xfffffe004f6fecc0
gs32p        = 0xffffffff835a9f28
ldt          = 0xffffffff835a9f68
tss          = 0xffffffff835a9f58
tlb gen      = 0
db:0:kdb.enter.default>  bt
Tracing pid 0 tid 100336 td 0xfffff8002e2e0620
kdb_enter() at kdb_enter+0x3b/frame 0xfffffe004f6fe760
vpanic() at vpanic+0x19b/frame 0xfffffe004f6fe7c0
panic() at panic+0x43/frame 0xfffffe004f6fe820
trap_pfault() at trap_pfault/frame 0xfffffe004f6fe870
trap_pfault() at trap_pfault+0x49/frame 0xfffffe004f6fe8d0
trap() at trap+0x29d/frame 0xfffffe004f6fe9e0
calltrap() at calltrap+0x8/frame 0xfffffe004f6fe9e0
--- trap 0xc, rip = 0xffffffff80e13a92, rsp = 0xfffffe004f6feab0, rbp = 0xfffffe004f6feab0 ---
amrr_tx_update() at amrr_tx_update+0x12/frame 0xfffffe004f6feab0
rum_ratectl_task() at rum_ratectl_task+0x17f/frame 0xfffffe004f6feb20
taskqueue_run_locked() at taskqueue_run_locked+0x185/frame 0xfffffe004f6feb80
taskqueue_thread_loop() at taskqueue_thread_loop+0xb8/frame 0xfffffe004f6febb0
fork_exit() at fork_exit+0x83/frame 0xfffffe004f6febf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe004f6febf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---

Unfortunately it is crashing is the wireless code but I'm not turning up any similar backtraces when searching. What settings do you have on the wireless interface? Perhaps you have an option enabled which was ignored before but now is getting applied but not supported in rum(4).

[lexxai]

Today testing with rum USB WiFi adapter.
Removed previously used WiFi interface, reboot, install new settings, in most default settings.
Crashed only when I set Access Point mode for WiFi adapter.
On Client modes work w/o crash.

P.S. Early version of pfSense was ok on AP mode.