From: Dave Hansen <haveblue@us.ibm.com>
To: Andrew Morton <akpm@digeo.com>
Cc: Ingo Molnar <mingo@redhat.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Structure clobbering causes timer oopses
Date: Sat, 12 Oct 2002 19:09:42 -0700 [thread overview]
Message-ID: <3DA8D5E6.8090201@us.ibm.com> (raw)
In-Reply-To: 3DA8C75C.C38F840B@digeo.com
Andrew Morton wrote:
> Dave Hansen wrote:
>>...
>>timer magic check failed timer:__run_timers():351
>>begin: 0xc035fbc8 end:0xc035fbe8
>
> Can you look these up in System.map?
Inside tvec_bases, just like eip, because of timer_t->function.
c035fa80 d tvec_bases
c037fe80 d pidmap_lock
c037fea0 D page_states
>>BTW, I found lots of users who aren't using init_timer(). Should I
>>publicly humiliate them?
>
> If they're initially using add_timer(), that works out
> OK. It they start out using mod_timer() (or del_timer) then bug.
The init_timer() comment says otherwise, but I imagine that not using
it shouldn't _cause_ any bugs.
* init_timer() must be done to a timer prior calling *any* of the
* other timer functions.
> I assume you tried all the memory debugging options?
No luck there. I can't even get the oops to trigger with all the
debugging on.
--
Dave Hansen
haveblue@us.ibm.com
next prev parent reply other threads:[~2002-10-13 2:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-13 0:59 Structure clobbering causes timer oopses Dave Hansen
2002-10-13 1:07 ` Andrew Morton
2002-10-13 2:09 ` Dave Hansen [this message]
2002-10-13 19:50 ` Dipankar Sarma
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