amd64-7.0_STABLE trap panic (reprise)

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

Similar to a previous posting:

  http://mail-index.netbsd.org/current-users/2015/11/06/msg028356.html

My file server, running 7.0_STABLE/amd64 of around 7 December panicked
this afternoon.  The backtrace from the saved crashdump is not the
same as any previously posted, but has some similar elements:

$ crash -N netbsd.4 -M netbsd.4.core
Crash version 7.0_STABLE, image version 7.0_STABLE.
System panicked: trap
Backtrace from time of crash is available.
crash> bt
_KERNEL_OPT_NAGR() at 0
_KERNEL_OPT_NAGR() at 0
vpanic() at vpanic+0x145
snprintf() at snprintf
startlwp() at startlwp
calltrap() at calltrap+0x11
uvm_pagefree() at uvm_pagefree+0xd4
genfs_do_putpages() at genfs_do_putpages+0xce0
VOP_PUTPAGES() at VOP_PUTPAGES+0x3a
uvm_pageout() at uvm_pageout+0x2f1
crash> quit


At the time, there were 2 diskless clients served from the machine
as well as source and pkgsrc trees being used by 4 clients and
my home directory, etc. used by 2 more clients.

The machine itself was building a -current release for amd64 as well.

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