Date: Wed, 23 Oct 1996 17:37:53 -0700 From: David Greenman <dg@root.com> To: Thomas David Rivers <ponds!rivers@dg-rtp.dg.com> Cc: freebsd-hackers@freefall.freebsd.org Subject: Re: Daily panic's with 2.1.5R. Message-ID: <199610240037.RAA03981@root.com> In-Reply-To: Your message of "Wed, 23 Oct 1996 19:24:55 EDT." <199610232324.TAA09502@lakes.water.net>
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>One question before I get to that. I recall that the kernel >boot messages used to say something about the previous panic when >it discovered the savecore image. Did this go away, or am I >simply mis-remembering? You're not mis-remembering, but I don't know why you didn't see it. It comes out from syslogd, so perhaps there is something wrong with that on your machine. >panic: ifree: freeing free inode >#0 0xf0193abb in boot () >(kgdb) where >#0 0xf0193abb in boot () >#1 0xf0112b73 in panic () >#2 0xf0176db7 in ffs_vfree () >#3 0xf017c042 in ufs_inactive () >#4 0xf0128ca5 in vrele () >#5 0xf0128c07 in vput () >#6 0xf017f574 in ufs_remove () >#7 0xf012acae in unlink () >#8 0xf019be36 in syscall () >#9 0xf01912fb in Xsyscall () >#10 0x2d9a in ?? () >#11 0x2b2a in ?? () >#12 0x2507 in ?? () >#13 0x19b9 in ?? () >#14 0x10d3 in ?? () > > >The traceback is pretty straightforward - an unlink() has >caused an inode to be duplicately free'd. > >Has anyone seen this before? > >I've seen similar problems when installing - from version 2.1.0 >on. I've been able to work around them in the past by adjusting >the inode values on newfs parms on the file system. I'm guessing >that adjustment simply covers up the problem. > > I see in ffs_vfree() that I should have seen a message detailing >some information - but that's not in the /var/log/messages (not likely >it could be, eh?) and the screen has long since scrolled on... > > I have the kernel & vmcore files, I can put them on freefall >if anyone wants to take a gander... Do a: tail -100 vmcore.0 | strings | more ...and you should find the original kernel message buffer. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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