So, I recently built (and rebuilt) svn-20060220. Both times resulted in
the same kernel panic. Any tips as to how to interpret the panic so as
to point to a specific cause would be much appreciated.
The first time through, I was working (and installing to) a single ext3
partition; that was the only deviation from the book. When I got the
kernel panic, I figured I had made a dumb mistake like misconfiguring
the kernel (perhaps I didn't compile in ext3) or somesuch. I had done
the final work on it late at night, and perhaps had been sloppy.
The second time through, I was much more careful. I started completely
from scratch - new disk, newly formatted (ext3), built toolchain from
scratch, etc. I (foolishly, in retrospect) did not run *every* make
check, but I did on several (ie, glibc, gcc) and I did do the check
compiles to make sure I wasn't linking against tools, that SSP was
working correctly, etc. In particular, in configuring the kernel, I
left it at all the defaults (ext3 appeared to be compiled in, not as a
module, by default) except the grsec and PaX options. Same panic. I
then did a cp -pr to an ext2 partition, remounted dev proc etc, chrooted
in and reran grub. Rebooted, same result.
One thing I thought of was hotplug. I read that it was needed to
populate /dev. I assumed that that meant for new devices, after boot
(ie, usb), but... In make menuconfig, the section for hotplug listed
"---" instead of the "<*>" I would have expected, but looking at the
.config file showed hotplug set to y, so that seems OK (?)
I can't see all of the data from the panic, because it scrolls of the
screen. Basically, I see the tail end of a column of hex numbers, then
some other data, as follows:
[<00000000>]
Code: 57 56 53 83 ec 2c 8b 44 24 44 85 c0 0f 88 e5 04 00 00 8b 74 24 40
8b 44 24 44 8d 6c 06 ff 89 f0 83 e8 01 39 e8 77 43 8b 4c 24 48 <80> 39
00 74 25 0f b6 01 3c 25 74 42 39 ee 77 06 8b 4c 24
<0>Kernel panic - not syncing: Attempted to kill init!
I googled the last phrase, but came up mostly with references to a
problem in Red Hat that didn't seem relevant - but I admit that I
probably don't have the knowledge to know what's relevant and what's not...
In particular, I'd appreciate not only ideas about what the problem
might be, but advice on how I could debug it myself. Meanwhile I'll be
embarking on yet another build, with 'make check' at every point along
the way... Thanks!
-jps
-jps
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