[10.99.12] Panic (softints stuck)

	Hello,

	As there is a regression in recent -10.x kernel with iscsi initiator, I
have built a 10.99.12 kernel. iscsi initiator runs now as expected. I
haven't seen hard lock for a while. Nevertheless, system randomly panics
with :

[ 347098.708000] ccb_timeout: num=1 total=0 disp=0 invalid
ccb=0xffff860021cec3e0
[ 417509.006761] panic: cpu0: softints stuck for 16 seconds
[ 417509.006761] cpu0: Begin traceback...
[ 417509.006761] vpanic() at netbsd:vpanic+0x171
[ 417509.006761] panic() at netbsd:panic+0x3c
[ 417509.006761] heartbeat() at netbsd:heartbeat+0x34c
[ 417509.006761] hardclock() at netbsd:hardclock+0x8b
[ 417509.006761] Xresume_lapic_ltimer() at netbsd:Xresume_lapic_ltimer+0x1e
[ 417509.006761] --- interrupt ---[ 347098.708000] ccb_timeout: num=1
total=0 disp=0 invalid ccb=0xffff860021cec3e0
[ 417509.006761] panic: cpu0: softints stuck for 16 seconds
[ 417509.006761] cpu0: Begin traceback...
[ 417509.006761] vpanic() at netbsd:vpanic+0x171
[ 417509.006761] panic() at netbsd:panic+0x3c
[ 417509.006761] heartbeat() at netbsd:heartbeat+0x34c
[ 417509.006761] hardclock() at netbsd:hardclock+0x8b
[ 417509.006761] Xresume_lapic_ltimer() at netbsd:Xresume_lapic_ltimer+0x1e
[ 417509.006761] --- interrupt ---
[ 417509.006761] mutex_vector_enter() at netbsd:mutex_vector_enter+0x354
[ 417509.006761] pool_get() at netbsd:pool_get+0x69
[ 417509.006761] pool_cache_get_slow() at netbsd:pool_cache_get_slow+0x136
[ 417509.006761] pool_cache_get_paddr() at netbsd:pool_cache_get_paddr+0x254
[ 417509.006761] m_get() at netbsd:m_get+0x36
[ 417509.006761] m_gethdr() at netbsd:m_gethdr+0x9
[ 417509.006761] tcp_output() at netbsd:tcp_output+0x1284
[ 417509.006761] tcp_input() at netbsd:tcp_input+0xeec
[ 417509.006761] ipintr() at netbsd:ipintr+0x88c
[ 417509.006761] softint_dispatch() at netbsd:softint_dispatch+0x112
[ 417509.006761] DDB lost frame for netbsd:Xsoftintr+0x4c, trying
0xffff8604a84ad0f0
[ 417509.006761] Xsoftintr() at netbsd:Xsoftintr+0x4c
[ 417509.006761] --- interrupt ---
[ 417509.006761] 4edca1a77f5082bf:
[ 417509.006761] cpu0: End traceback...

[ 417509.006761] dumping to dev 18,1 (offset=253015, size=4162677):
[ 417509.006761] dump device bad

[ 417509.006761] mutex_vector_enter() at netbsd:mutex_vector_enter+0x354
[ 417509.006761] pool_get() at netbsd:pool_get+0x69
[ 417509.006761] pool_cache_get_slow() at netbsd:pool_cache_get_slow+0x136
[ 417509.006761] pool_cache_get_paddr() at netbsd:pool_cache_get_paddr+0x254
[ 417509.006761] m_get() at netbsd:m_get+0x36
[ 417509.006761] m_gethdr() at netbsd:m_gethdr+0x9
[ 417509.006761] tcp_output() at netbsd:tcp_output+0x1284
[ 417509.006761] tcp_input() at netbsd:tcp_input+0xeec
[ 417509.006761] ipintr() at netbsd:ipintr+0x88c
[ 417509.006761] softint_dispatch() at netbsd:softint_dispatch+0x112
[ 417509.006761] DDB lost frame for netbsd:Xsoftintr+0x4c, trying
0xffff8604a84ad0f0
[ 417509.006761] Xsoftintr() at netbsd:Xsoftintr+0x4c
[ 417509.006761] --- interrupt ---
[ 417509.006761] 4edca1a77f5082bf:
[ 417509.006761] cpu0: End traceback...

[ 417509.006761] dumping to dev 18,1 (offset=253015, size=4162677):
[ 417509.006761] dump device bad

	I have checked, always the same panic message. I would have more
information, but as you see, "dump device 'is' bad". For a while, my
system is not able to write kernel dump. With -9, it worked. Never with
-10 (but without message). -10.99 complains against bad device. My swap
is on raid0b. Maybe kernel cannot write a dump on a raid slice.

	Best regards,

	JB

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