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Date: Sun, 12 Oct 1997 15:29:58 -0700 (PDT)
From: Julian Elischer <julian@whistle.com>
To: Poul-Henning Kamp <phk@critter.freebsd.dk>
cc: Mark Huizer <xaa@stack.nl>, current@freebsd.org
Subject: Re: panic: free: multiple free 
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duh, braino on  my part..
pointy hat here please.
(works on my site though puzzelingly enough)
I just checked in a change to src/sys/miscfs/devfs/devfs_tree.c

if you have compiled devfs and your kernel crashes on boot
you'll want to get this one...


On Sun, 12 Oct 1997, Poul-Henning Kamp wrote:

> 
> I have taken a brief look (it's midnight in Denmark too :-)
> I will not rule out that this is indeed a genuine bug in DEVFS
> where the same name is free()'ed more than once.
> 
> I've Cc'ed Julian "Devfs" Elischer.
> 
> Why it shows it head now I don't know.
> 
> Poul-Henning
> 
> In message <19971012233705.41215@xaa.stack.nl>, Mark Huizer writes:
> >> At the very least give me the top three lines from trace...
> >
> >Debugger
> >Panic :-)
> >But I won't count these:
> >
> >free(f0672300,f02078d0,f0672300,f0672300,f0cafc08) free+0xd7
> >devfs_dn_free(f0672300) devfs_dn_free+4a
> >dev_free_name(f0663280,f0673190,4,f0673000,f0a2fc838) +0x72
> >
> >and further (no parameters, sorry :-)
> >devfs_remove_dv
> >dsgone
> >dsopen
> >wdopen
> >spec_open
> >ffs_mountfs
> >ffs_mount
> >vfs_mountroot
> >xxx_vfs_mountroot
> >main
> >begin
> >
> >Hmm... probably the difference with the other person is the fact that I
> >have DEVFS compiled in. I could have a look at some code, but well, mine
> >is not all the time in the world this week, maybe next week, after
> >graduation :-)
> >
> >But if there is anything I can do, please let me now. If you think you
> >really need a good way to investigate, I could bring it to the
> >university tomorrow and hang it on the serial port of my FreeBSD machine
> >there and give you an account or something.
> >
> >Mark
> >> 
> >> --
> >> Poul-Henning Kamp             FreeBSD coreteam member
> >> phk@FreeBSD.ORG               "Real hackers run -current on their laptop."
> >-------------------------------------------------------------------------
> >- Mark Huizer  - xaa@stack.nl     - rcbamh@urc.tue.nl                   -
> >-------------------------------------------------------------------------
> >- Faith is good, but skepticism is better (Guiseppe Verdi)		-
> >-------------------------------------------------------------------------
> 
> --
> Poul-Henning Kamp             FreeBSD coreteam member
> phk@FreeBSD.ORG               "Real hackers run -current on their laptop."
>