I have encountered this problem twice in within the last 30 days. Once
was about less than an hour ago.
The first time I encountered it, I was going to submit a bug report
(when I found out where to submit it), but it took me so long (at least
an hour) to copy all the information off the screen (which had to be
done by hand), that I put it aside (I have a pressing programming
project to complete). I still have the 3 pages of hand-written (and
double-checked) notes if there is anything I can extract that may be of
help.
The screen started off with what looked like a few lines from boot-up
and then the actual panic (if that is the correct term). Here are the
first 4 lines (it then goes on to "Modules linked in" and a trace-
back/stack and register dump):
[698889.324255] BUG: unable to handle kernel paging request at 00ffff96
[698889.324317] IP: [<c1130c08>] filp_close+0x28/0x80
[698889.324374] *pde = 00000000
[698889.324429] Oops: 0000 [#1] SMP
After the long list of modules, the next message starts out (this tells
the hardware, an older MacBook Pro, the kernel and distribution — at
least that's what I think):
[698889.324511] Pid: 29109, comm: zip Tainted: G 0 3.2.0-29-generic
#46-Ubuntu Apple Computer, Inc. MacBookPro2,1/Mac-F42189c8 ...
Other comments: I do NOT reboot frequently, often going for a week or
more without rebooting (I used to work on computers using various
flavours of Unix).
Prior to the current kernel (3.2.0-29-generic) and Ubuntu release
("Ubuntu 12.04 (precise)"), I had never encountered this situation.
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https://bugs.launchpad.net/bugs/1012770
Title:
Kernel Oops : unable to handle kernel paging request at a0005410; EIP
is at kmap_atomic_prot+0x20/0x100
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