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SubjectRe: Top 10 kernel oopses for the week ending January 5th, 2008


On Tue, 8 Jan 2008, Arjan van de Ven wrote:
>
> I've made life easier for those using the www.kerneloops.org website;
> at least for x86 oopses the website now does this for you and shows
> the decoded Code: line in the raw oops data:
>
> http://www.kerneloops.org/raw.php?rawid=2716

Cool.

One thing I wonder about - could you separate out the bug-ons and warnings
from the oopses? They really are different issues, and an oops with
register information etc is very different from a BUG() with line numbers,
which in turn is very different from a WARN_ON().

Right now, it says

Oopses reported for kernel 2.6.24-rc7


7 oopses reported

hfsplus_releasepage 3
enqueue_task 1
lock_acquire 1
__hfs_brec_find 1
__ieee80211_rx 1

and in fact three of those five entries are really WARN_ON's. It would be
nicer if it would look more along the lines of

Backtraces reported for kernel 2.6.24-rc7


4 oopses reported

hfsplus_releasepage 3
__hfs_brec_find 1


3 warnings repored

enqueue_task 1
lock_acquire 1
__ieee80211_rx 1

because those things really don't have the same kind of impact at all, and
tend to be very different to debug (a "BUG_ON()" is perhaps somewhat
closer to an oops, but a WARN_ON() is definitely in a class of its own).

On that "Code:" side, it seems there is still some problem with oops
parsing. See for example:

http://www.kerneloops.org/raw.php?rawid=1521&msgid=http://mid.gmane.org/20071017154655.GA13394@elte.hu

and notice how the Code: never made it into the raw message (and thus
there is also no instruction disassembly).

Linus


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