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On Thu, 2013-09-05 at 20:52 +0200, Alessandro Vesely wrote: > Package: xen-hypervisor-4.1-amd64 > Version: 4.1.4-3+deb7u1 > Severity: normal > > I tried GRUB_CMDLINE_XEN="dom0_mem=8192M": that delivers 6964868K total, then > crashes when used=2837436K free=4127432K. > By crash I mean the gnome screen was blown away, replaced by a black screen > with white log lines. That seems to happen every time dom0 uses a large amount > of memory. On a modern dom0 kernel you need to specify the maximum memory as well, i.e. dom0_mem=8192M,max:8192M otherwise the...

On Fri 06/Sep/2013 10:12:29 +0200 Ian Campbell wrote: > On Thu, 2013-09-05 at 20:52 +0200, Alessandro Vesely wrote: >> >> I tried GRUB_CMDLINE_XEN="dom0_mem=8192M": that delivers 6964868K total, then >> crashes when used=2837436K free=4127432K. > > On a modern dom0 kernel you need to specify the maximum memory as well, > i.e. dom0_mem=8192M,max:8192M Nope, I tried the string you said, and got a crash. I attach the log file again, as there are some small differences between this boot and the two ones in the previous attachment...

Package: xen-hypervisor-4.1-amd64 Version: 4.1.4-3+deb7u1 Severity: normal I tried GRUB_CMDLINE_XEN="dom0_mem=8192M": that delivers 6964868K total, then crashes when used=2837436K free=4127432K. By crash I mean the gnome screen was blown away, replaced by a black screen with white log lines. That seems to happen every time dom0 uses a large amount of memory. After setting GRUB_CMDLINE_XEN="dom0_mem=2048M", the system eventually froze, but didn't crash. I attach a commente...