Re: [Xen-devel] [BUG] Assertion '(sp == 0) || (peoi[sp-1].vector < vector)' failed at irq.c:1163

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 22.01.16 at 10:20, <andrew.cooper3@xxxxxxxxxx> wrote:
> ** sp 1, irq 107, vec 0x3b
> **peoi[0] = {107, 0x3b, 0}
> Assertion '(sp == 0) || (peoi[sp-1].vector < vector)' failed at irq.c:1172
> ----[ Xen-4.6.0  x86_64  debug=y  Tainted:    C ]----
> <snip>
> Xen call trace:
>    [<ffff82d080170205>] do_IRQ+0x451/0x6ea
>    [<ffff82d08023b132>] common_interrupt+0x62/0x70
>    [<ffff82d0801af1ea>] mwait_idle+0x2cb/0x315
>    [<ffff82d0801607bc>] idle_loop+0x51/0x6b
> 
> So we have been interrupted with an interrupt we already believe to be
> pending.  I wonder if there is an erratum to do with going to sleep with
> a pending interrupt.

An immediate way to check whether that's (part of) the problem
would be to run with "cpuidle=0" for a while.

Jan


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