[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] HVM support for e820_host (Was: Bug: Limitation of <=2GB RAM in domU persists with 4.3.0)
On 09/03/2013 10:10 PM, Konrad Rzeszutek Wilk wrote: On Tue, Sep 03, 2013 at 09:49:40PM +0100, Gordan Bobic wrote:I spoke too soon - even with e820_host=0, the same error occurs. What did I break? The code in question is this: if (libxl_defbool_val(d_config->b_info.e820_host)) { ret = libxl__e820_alloc(gc, domid, d_config); if (ret) { LIBXL__LOG_ERRNO(gc->owner, LIBXL__LOG_ERROR, "Failed while collecting E820 with: %d (errno:%d)\n", ret, errno); } } With e820_host=0, that outer black should evaluate to false, should it not? In libxl_create.c, if I am understanding the code correctly, e820_host is defaulted to false, too. What am I missing?Just sent you an email but I believe what is failing is: 241 rc = xc_domain_set_memory_map(ctx->xch, domid, map, nr); But with e820_host=0 set in the config, libxl__e820_alloc() should not be getting called in the first place. That function only gets called from line 303, inside that if block I pasted above. That is what is puzzling me. You can add some extra LIBXL__LOG_ERRNO to check each 'rc' to see which one of them failed. Hm, perhaps it might make sense to actually have the libxl__e820_alloc also use the LIBXL__LOG_ERRNO to log more details.. OK, I'll add some debug and see what I find. Gordan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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