KASSERT() on signal delivery

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

Hello,
I just got this panic on a 10.1-STABLE web server while running
a nginx reload:
[ 63790.8339809] panic: kernel diagnostic assertion "((uintptr_t)(__al_ptr) & (sizeof(*(__al_ptr)) - 1)) == 0" failed: file "/local/armandeche2/netbsd-10/src/sys/kern/kern_sig.c", line 1082
[ 63790.8539802] cpu7: Begin traceback...
[ 63790.8539802] vpanic() at netbsd:vpanic+0x183
[ 63790.8639801] kern_assert() at netbsd:kern_assert+0x4b
[ 63790.8639801] kpsignal() at netbsd:kpsignal+0xe2
[ 63790.8739801] fownsignal() at netbsd:fownsignal+0xe3
[ 63790.8739801] sowakeup() at netbsd:sowakeup+0xe6
[ 63790.8839799] unp_rcvd() at netbsd:unp_rcvd+0x11d
[ 63790.8839799] soreceive() at netbsd:soreceive+0x66a
[ 63790.8939801] do_sys_recvmsg_so() at netbsd:do_sys_recvmsg_so+0x240
[ 63790.8939801] sys_recvmsg() at netbsd:sys_recvmsg+0xa1
[ 63790.9039799] syscall() at netbsd:syscall+0x196
[ 63790.9039799] --- syscall (number 27) ---

Unfortunably I can't get a core dump on this host.

Does it ring a bell to someone ?

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--