Re: [BUG]: when using `xl restore`，xc_evtchn_alloc_unbound will raise this error

[马磊 <aware.why@gmail.com>]

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On Wed, Dec 26, 2012 at 6:03 PM, 马磊 <aware.why@gmail.com> wrote:

> Hi，
>     I got xen source code from
> http://www.xen.org/download/index_4.1.2.html .
>     when using `xl restore`，xc_evtchn_alloc_unbound will raise this error: xc:
> error: do_evtchn_op: HYPERVISOR_event_channel_op failed: -1 (3 = No such
> process): Internal error.
>   what does this mean and what does such process refer to?
>     Looking forward to your reply.
>     Thanks.
>

The error exactly occurs at  this point: (tools/libxl/libxl_dom.c)
67-int libxl__build_pre(libxl_ctx *ctx, uint32_t domid,



 68              libxl_domain_build_info *info, libxl_domain_build_state
*state)


 69{



 70    xc_domain_max_vcpus(ctx->xch, domid, info->max_vcpus);



 71    xc_domain_setmaxmem(ctx->xch, domid, info->target_memkb +
LIBXL_MAXMEM_CONSTANT);


 72    xc_domain_set_memmap_limit(ctx->xch, domid,



 73            (info->hvm) ? info->max_memkb :



 74            (info->max_memkb + info->u.pv.slack_memkb));



 75    xc_domain_set_tsc_info(ctx->xch, domid, info->tsc_mode, 0, 0, 0);



 76    if ( info->disable_migrate )



 77        xc_domain_disable_migrate(ctx->xch, domid);



 78



 79    if (info->hvm) {



 80        unsigned long shadow;



 81        shadow = (info->shadow_memkb + 1023) / 1024;



 82        xc_shadow_control(ctx->xch, domid,
XEN_DOMCTL_SHADOW_OP_SET_ALLOCATION, NULL, 0, &shadow, 0, NULL);


 83    }



 84



 85    state->store_port = xc_evtchn_alloc_unbound(ctx->xch, domid, 0);



 86    state->console_port = xc_evtchn_alloc_unbound(ctx->xch, domid, 0);



 87    return 0;



 88}

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