Re: current kernel + userland just resets

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

On Tue, 27 Sep 2011, John D. Baker wrote:

> I'll reset it, switch to the previous kernel and see how it behaves.
> and see about posting the relevant log entries.

The log contained the following messages:

[...]
Sep 24 23:00:00 skuld syslogd[345]: restart
Sep 25 03:18:06 skuld syslogd[345]: restart
Sep 25 03:18:06 skuld /netbsd: /: bad dir ino 438824 at offset 0: mangled entry
Sep 25 03:18:06 skuld /netbsd: panic: bad dir
Sep 25 03:18:06 skuld /netbsd: cpu0: Begin traceback...
Sep 25 03:18:06 skuld /netbsd: 
ufs_dirbadentry(cf6d06e8,0,c05ee60d,0,cdbb39a0,0,da8b6000,c0461a08,da8b6000,c6a000)
 at netbsd:ufs_dirbadentry
Sep 25 03:18:06 skuld /netbsd: 
ufs_lookup(cdbb39e4,1,1,800,ffffffff,0,cdbb3a60,cf6ce430,c05d59c8,cf6ce430) at 
netbsd:ufs_lookup+0x3fc
Sep 25 03:18:06 skuld /netbsd: 
VOP_LOOKUP(cf6ce430,cdbb3a50,cdbb3be4,c0549f98,c2ad814c,c05d5df4,cf6ce430,2,c31ef000,cf6ce430)
 at netbsd:VOP_LOOKUP+0x33
Sep 25 03:18:06 skuld /netbsd: 
lookup_once(cdbb3b1c,cdbb3b18,4,cd9c6a98,c067b960,cd0a7d0c,cdbb3abc,cdbb3b20,1,c2997800)
 at netbsd:lookup_once+0x19b
Sep 25 03:18:06 skuld /netbsd: 
namei_tryemulroot(0,c065394c,cdbb3cf4,c0539f75,bb917054,cd0b7c00,cdbb3bc0,cdbb3be4,20,0)
 at netbsd:namei_tryemulroot+0x220
Sep 25 03:18:06 skuld /netbsd: 
namei(cdbb3bc0,cdbb3c00,cdbb3bdc,c05585e9,cdbb3bcc,1,0,0,5,c05d5d40) at 
netbsd:namei+0x29
Sep 25 03:18:06 skuld /netbsd: 
do_sys_stat(bb917054,0,cdbb3c28,0,0,ff0,0,cd0aa6a0,bb911010,ff0) at 
netbsd:do_sys_stat+0x47
Sep 25 03:18:06 skuld /netbsd: 
sys___lstat50(cdb5eaa0,cdbb3cf4,cdbb3d1c,cd0aa6a0,79981000,cd0ab924,cdb5dbfc,1b9,79865000,cd800cc8)
 at netbsd:sys___lstat50+0x2a
Sep 25 03:18:06 skuld /netbsd: 
syscall(cdbb3d48,bb9000b3,ab,bfbf001f,bb90001f,bb917000,bb924f04,bfbfeb58,bbbbd598,bb917000)
 at netbsd:syscall+0xa1
Sep 25 03:18:06 skuld /netbsd: cpu0: End traceback...
Sep 25 03:18:06 skuld /netbsd: 
Sep 25 03:18:06 skuld /netbsd: dumping to dev 0,1 offset 133223
Sep 25 03:18:06 skuld /netbsd: dump Copyright (c) 1996, 1997, 1998, 1999, 2000, 
2001, 2002, 2003, 2004, 2005,
Sep 25 03:18:06 skuld /netbsd:    2006, 2007, 2008, 2009, 2010, 2011
Sep 25 03:18:06 skuld /netbsd:    The NetBSD Foundation, Inc.  All rights 
reserved.
Sep 25 03:18:06 skuld /netbsd: Copyright (c) 1982, 1986, 1989, 1991, 1993
Sep 25 03:18:06 skuld /netbsd:    The Regents of the University of California.  
All rights reserved.
Sep 25 03:18:06 skuld /netbsd: 
Sep 25 03:18:06 skuld /netbsd: NetBSD 5.99.55 (SKULD) #8: Fri Sep 23 18:08:54 CDT 2011
Sep 25 03:18:06 skuld /netbsd:  
sysop%skuld.technoskunk.fur@localhost:/d0/build/current/obj/i386/sys/arch/i386/compile/SKULD
[...]
Sep 25 03:18:12 skuld savecore: reboot after panic: panic: bad dir
Sep 25 03:18:12 skuld savecore: system went down at Sun Sep 25 03:16:53 2011 
Sep 25 03:18:12 skuld savecore: writing compressed core to /var/crash/netbsd.4.core.gz
Sep 25 03:18:29 skuld savecore: writing compressed kernel to 
/var/crash/netbsd.4.gz
Sep 25 03:18:29 skuld savecore: kvm_read: kvm_read: Bad address
Sep 25 03:18:29 skuld savecore: (null): Bad address
[...]

So the kernel was built about 201109232308Z, so the sources couldn't have
been more than an hour old.

Although it rebooted, it was completely unresponsive to anything except
a power-cycle.  It went similarly comatose, sometime this morning, but
without any more output since 2300 local time nor any of the messages
seen previously.  I'll see if I can extract information from the core
dumps.

--
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