Re: [Xen-devel] Need help with fixing the Xen waitqueue feature

[Keir Fraser <keir@xxxxxxx>]

On 24/11/2011 09:15, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:

>> Attached three patches for you to try. They apply in sequence.
>> 00: A fixed version of "domain_crash on stack overflow"
>> 01: Reorders prepare_to_wait so that the vcpu will always be on the
>> waitqueue on exit (even if it has just been woken).
>> 02: Ensures the vcpu wakes up on the same cpu that it slept on.
> 
> Didn't we (long ago) settle on not permitting new calls to
> domain_crash_synchronous()?

This was a reaction to lazy patches which sprinkled d_c_s calls around
liberally, and in unsafe locations, as a dodge around proper error handling.



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