[Bug 237329] Panic in __mtx_lock_sleep() during reboot or shutdown

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237329

--- Comment #3 from Trond.Endrestol at ximalas.info ---
This backtrace is more to the point:

(kgdb) bt
#0  __curthread () at ./machine/pcpu.h:230
#1  doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:371
#2  0xffffffff8080a6a0 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:451
#3  0xffffffff8080ab40 in vpanic (fmt=<optimized out>, ap=0xfffffe005ad3c610)
at /usr/src/sys/kern/kern_shutdown.c:877
#4  0xffffffff8080a923 in panic (fmt=<unavailable>) at
/usr/src/sys/kern/kern_shutdown.c:804
#5  0xffffffff80b76244 in trap_fatal (frame=0xfffffe005ad3c810, eva=1040) at
/usr/src/sys/amd64/amd64/trap.c:946
#6  0xffffffff80b762a9 in trap_pfault (frame=0xfffffe005ad3c810, usermode=0) at
/usr/src/sys/amd64/amd64/trap.c:765
#7  0xffffffff80b7588f in trap (frame=0xfffffe005ad3c810) at
/usr/src/sys/amd64/amd64/trap.c:441
#8  <signal handler called>
#9  __mtx_lock_sleep (c=0xfffff800103eb9a0, v=<optimized out>) at
/usr/src/sys/kern/kern_mutex.c:565
#10 0xffffffff80a3ae32 in mld_fasttimo_vnet (inmh=<optimized out>) at
/usr/src/sys/netinet6/mld6.c:1413
#11 mld_fasttimo () at /usr/src/sys/netinet6/mld6.c:1333
#12 0xffffffff80899fa4 in pffasttimo (arg=0xfffff800103eb9a0) at
/usr/src/sys/kern/uipc_domain.c:521
#13 0xffffffff80824e0e in softclock_call_cc (c=0xffffffff8121af90
<pffast_callout>, cc=0xffffffff812ed900 <cc_cpu>, direct=0) at
/usr/src/sys/kern/kern_timeout.c:731
#14 0xffffffff808252f9 in softclock (arg=0xffffffff812ed900 <cc_cpu>) at
/usr/src/sys/kern/kern_timeout.c:869
#15 0xffffffff807cd824 in intr_event_execute_handlers (ie=<optimized out>,
p=<optimized out>) at /usr/src/sys/kern/kern_intr.c:1119
#16 ithread_execute_handlers (ie=<optimized out>, p=<optimized out>) at
/usr/src/sys/kern/kern_intr.c:1132
#17 ithread_loop (arg=<optimized out>) at /usr/src/sys/kern/kern_intr.c:1212
#18 0xffffffff807ca2d3 in fork_exit (callout=0xffffffff807cd650 <ithread_loop>,
arg=0xfffff80002591100, frame=0xfffffe005ad3cc00) at
/usr/src/sys/kern/kern_fork.c:1059
#19 <signal handler called>

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