# Captured serial-console output of the FIX-VALIDATION run of
# ata_detach_race on channel 1 (guest running the PATCHED kernel,
# DragonFly 6.5-DEVELOPMENT #1: Sun Sep 20 16:48:58 UTC 2026).
# The ioctl-level serialization in fix.diff removes the racing
# IOCATADETACH/ATTACH/REINIT entries, but the panic still occurs via
# the asynchronous disk-core thread racing the newbus child teardown,
# i.e. the same unserialized-teardown root cause has a second actor
# (disk_msg_core) not covered by the ioctl lock.  => fix is PARTIAL.

login: panic: assertion "(sr->flags & SRF_PUTAWAY) == 0" failed in sysref_put at /usr/src/sys/sys/sysref2.h:85
cpuid = 2
Trace beginning at frame 0xfffff8008d1f4a60
destroy_only_dev() at destroy_only_dev+0xde 0xffffffff8062c42e
destroy_only_dev() at destroy_only_dev+0xde 0xffffffff8062c42e
disk_msg_core() at disk_msg_core+0x1ef 0xffffffff80693dff
Debugger("panic")

CPU2 stopping CPUs: 0x0000003b
 stopped
Stopped at      Debugger+0x7c:  movb    $0,0xbdaea9(%rip)
db>