igc0 crash

[Paul Goyette <paul%whooppee.com@localhost>]

This is with a amd64 11.99.7 built from sources updated on 2026-08-09
at 17:42:29 UTC.

The trigger was simply ``$ ifconfig igc0 down''

Stack trace:

$ crash -M netbsd.67.core
Crash version 11.99.7, image version 11.99.7.
crash: _kvm_kvatop(0)
Kernel compiled without options LOCKDEBUG.
System panicked: dump forced via kernel debugger
Backtrace from time of crash is available.
crash> bt
sys__ksem_trywait() at 0
kern_reboot() at kern_reboot+0x5f
db_sync_cmd() at db_sifting_cmd
db_command() at db_command+0x152
db_command_loop() at db_command_loop+0x1ce
db_trap() at db_trap+0xc9
kdb_trap() at kdb_trap+0x223
trap() at trap+0xcc
--- trap (number 1) ---
breakpoint() at breakpoint+0x5
vpanic() at vpanic+0x189
kern_assert() at __x86_indirect_thunk_rax
callout_halt() at callout_halt+0x191
igc_stop_locked() at igc_stop_locked+0x1a8
igc_stop() at igc_stop+0x22
ether_ioctl_reinit() at ether_ioctl_reinit+0x72
igc_ioctl() at igc_ioctl+0xc6
doifioctl() at doifioctl+0xad3
sys_ioctl() at sys_ioctl+0x1fa
syscall() at syscall+0x9d
--- syscall (number 54) ---
syscall+0x9d:


This was not seen on an earlier kernel from 2026-07-10 at 19:57:03 UTC

Any ideas?



+---------------------+--------------------------+----------------------+
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