nvme controller reset failures on recent -CURRENT

I just upgraded my package build machine to:
  FreeBSD 15.0-CURRENT #110 main-n268161-4015c064200e
from:
  FreeBSD 15.0-CURRENT #106 main-n265953-a5ed6a815e38
and I've had two nvme-triggered panics in the last day.

nvme is being used for swap and L2ARC.  I'm not able to get a crash
dump, probably because the nvme device has gone away and I get an error
about not having a dump device.  It looks like a low-memory panic
because free memory is low and zfs is calling malloc().

This shows up in the log leading up to the panic:
Feb 12 10:07:41 zipper kernel: nvme0: Resetting controller due to a timeout a
nd possible hot unplug.
Feb 12 10:07:41 zipper syslogd: last message repeated 1 times
Feb 12 10:07:41 zipper kernel: nvme0: resetting controller
Feb 12 10:07:41 zipper kernel: nvme0: Resetting controller due to a timeout a
nd possible hot unplug.
Feb 12 10:07:41 zipper syslogd: last message repeated 1 times
Feb 12 10:07:41 zipper kernel: nvme0: Waiting for reset to complete
Feb 12 10:07:41 zipper syslogd: last message repeated 2 times
Feb 12 10:07:41 zipper kernel: nvme0: failing queued i/o
Feb 12 10:07:41 zipper kernel: nvme0: Failed controller, stopping watchdog ti
meout.

The device looks healthy to me:
SMART/Health Information Log
============================
Critical Warning State:         0x00
 Available spare:               0
 Temperature:                   0
 Device reliability:            0
 Read only:                     0
 Volatile memory backup:        0
Temperature:                    312 K, 38.85 C, 101.93 F
Available spare:                100
Available spare threshold:      10
Percentage used:                3
Data units (512,000 byte) read: 5761183
Data units written:             29911502
Host read commands:             471921188
Host write commands:            605394753
Controller busy time (minutes): 32359
Power cycles:                   110
Power on hours:                 19297
Unsafe shutdowns:               14
Media errors:                   0
No. error info log entries:     0
Warning Temp Composite Time:    0
Error Temp Composite Time:      0
Temperature 1 Transition Count: 5231
Temperature 2 Transition Count: 0
Total Time For Temperature 1:   41213
Total Time For Temperature 2:   0