Panic in stable/14; current process: iwn0 net80211 taskq
Date: Tue, 04 Nov 2025 11:52:47 UTC
Files (vmcore.9 & core.txt.9) may be found at
https://www.catwhisker.org/~david/FreeBSD/stable_14/ (along with
compressed copies of them -- it's on the slow end of a residential ADSL
connection).
An extract from core.txt.9:
Tue Nov 4 04:41:20 UTC 2025
FreeBSD g1-120.catwhisker.org 14.3-STABLE FreeBSD 14.3-STABLE #587 stable/14-n272796-1955c8f6293f: Mon Nov 3 11:46:14 UTC 2025 root@g1-120.catwhisker.org:/common/S1/obj/usr/src/amd64.amd64/sys/CANARY amd64
panic: page fault
...
Fatal trap 12: page fault while in kernel mode
cpuid = 2; apic id = 02
fault virtual address = 0x10b8096c9dac
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff80678a0b
stack pointer = 0x28:0xffffffff821afc00
frame pointer = 0x28:0xffffffff821afc30
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 (iwn0 net80211 taskq)
rdi: fffffe1093994000 rsi: fffffe10939943d8 rdx: ffffffff8118f420
rcx: 0000000000000000 r8: 0000000000000001 r9: 00000000000000c0
rax: 000010b88732c080 rbx: fffffe10939943d8 rbp: ffffffff821afc30
r10: 000000000000420a r11: 0000000000002af8 r12: 0000000000000000
r13: 0000000000000010 r14: ffffffff82394000 r15: 00000000581689b0
trap number = 12
panic: page fault
cpuid = 2
time = 1762231101
KDB: stack backtrace:
#0 0xffffffff80ba2d5d at kdb_backtrace+0x5d
#1 0xffffffff80b54261 at vpanic+0x161
#2 0xffffffff80b540f3 at panic+0x43
#3 0xffffffff8107ed60 at trap_pfault+0x3e0
#4 0xffffffff81054dd8 at calltrap+0x8
#5 0xffffffff80ccb421 at ieee80211_ht_node_cleanup+0xc1
#6 0xffffffff80ce1661 at node_cleanup+0x161
#7 0xffffffff80ce3cb3 at ieee80211_sta_leave+0x13
#8 0xffffffff80cf75ff at sta_newstate+0x59f
#9 0xffffffff80680f0c at iwn_newstate+0x6ec
#10 0xffffffff80cee758 at ieee80211_newstate_cb+0x1f8
#11 0xffffffff80bb8442 at taskqueue_run_locked+0x182
#12 0xffffffff80bb9692 at taskqueue_thread_loop+0xc2
#13 0xffffffff80b0bd21 at fork_exit+0x81
#14 0xffffffff81055dfe at fork_trampoline+0xe
Uptime: 12h52m25s
....
Some context: This is the first panic in stable/14 I've experienced
in ... a long time. It was on my "daily driver" laptop; I had set
it up for this morning's updates (I track stable/14, head, and
stable/15, and update all installed ports, daily on this laptop,
as well as a build machine and a couple of other laptops). The
laptop itself is old (Dell shows that the machine with this service
tag first shipped 17 Oct 2014), and made up of parts from several
Dell Precision M4800s, and has recently started treating "poweroff"
as "power cycle" for reasons that are not clear to me.
When I get up, then, I expect to be able to check on the status of the
most recent "git fetch", prepare for the next one (I have things set up
to do 2 of them overnight -- a relic of how I used to do things with
svn, which was a relic of how I used CVS (& CVSup), then start fetching
distfiles while I build world....
I was, therefore, rather surprised to see the xdm login banner when I
arrived at my desk. :-}
As the machine had been set up & left unattended, there wasn't much
processing going on, and it appears to have come back up in time to do
the daily backup to a mirror SSD successfully.
And I expect to migrate from stable/14 to stable/15 shortly after 15.0
is announced, so there may be less incentive (& interest) in poking at
this one (than if it had happened in stable/15 or head -- or on a newer
machine).
Peace,
david
--
David H. Wolfskill david@catwhisker.org
See https://www.catwhisker.org/~david/publickey.gpg for my public key.