[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH for-4.12 5/8] pvh/dom0: warn when dom0_mem is not set to a fixed value
There have been several reports of the dom0 builder running out of memory when buildign a PVH dom0 without havingf specified a dom0_mem value. Print a warning message if dom0_mem is not set to a fixed value when booting in PVH mode. Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx> --- Cc: Jan Beulich <jbeulich@xxxxxxxx> Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Cc: Wei Liu <wei.liu2@xxxxxxxxxx> Cc: Juergen Gross <jgross@xxxxxxxx> --- Without this patch creating a PVH dom0 without a dom0_mem parameter can result in the dom0 builder running out of memory thus leading to a Xen crash. The added message gives a hit to the user about a possible fix. --- xen/arch/x86/dom0_build.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/xen/arch/x86/dom0_build.c b/xen/arch/x86/dom0_build.c index 2b4d9e9ea6..427a665ddc 100644 --- a/xen/arch/x86/dom0_build.c +++ b/xen/arch/x86/dom0_build.c @@ -344,6 +344,10 @@ unsigned long __init dom0_compute_nr_pages( if ( !dom0_mem_set && CONFIG_DOM0_MEM[0] ) parse_dom0_mem(CONFIG_DOM0_MEM); + if ( is_hvm_domain(d) && !dom0_size.nr_pages ) + printk( +"WARNING: consider setting dom0_mem to a fixed value when using PVH mode\n"); + for_each_node_mask ( node, dom0_nodes ) avail += avail_domheap_pages_region(node, 0, 0) + initial_images_nrpages(node); -- 2.20.1 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |