[vbox-dev] vbox kernel modules cause hardlock on kernel 4.2.0-rc2
ramshankar.venkataraman at oracle.com
Thu Jul 16 11:35:59 UTC 2015
On 07/15/2015 11:54 AM, Jon Christopherson wrote:
> It hard locks the system with the kernel opps message i posted in my
> first post. I have to hit reset to recover from it.
> On 07/15/2015 04:20 AM, Ramshankar wrote:
>> On 07/14/2015 07:35 PM, Jon Christopherson wrote:
>> > I still get the same error after that commit. I am running a kernel
>> > from today's linus git repo and still receive it.
>> > -Jon
>> > _______________________________________________
>> > vbox-dev mailing list
>> > vbox-dev at virtualbox.org
>> > https://www.virtualbox.org/mailman/listinfo/vbox-dev
>> By 'error' do you mean the kernel panic or some warning in dmesg?
I'm not sure how that is happening.
reverts to the old assumptions of the caller disabling preemption while
We would get into the "slower" path but i don't think that should really
cause the kernel panic like before.
We would need to call the newly introduced functions
preempt_notifier_inc() and preempt_notifier_dec() but that should be a
performance issue and not a fatal panic afaict unless "WARN" ends up
panicking the system in which case it should be a different panic and
not the original oops you posted.
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