On Tue, Jan 15, 2013 at 8:43 AM, Yinghai Lu <ying...@kernel.org> wrote: > On Tue, Jan 15, 2013 at 4:19 AM, Stefano Stabellini > <stefano.stabell...@eu.citrix.com> wrote: >>> could be found at: >>> >>> >>> git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git >>> for-x86-boot >> >> I tried to boot this kernel as PV guest with 2GB of RAM, but >> unfortunately it crashes early on at boot (earlyprintk=xen log >> appended). >> >> >> >> mapping kernel into physical memory >> about to get started... >> [ 0.000000] Initializing cgroup subsys cpuset >> [ 0.000000] Linux version 3.8.0-rc3+ (sstabellini@st22) (gcc version >> 4.4.5 (Debian 4.4.5-8) ) #4 SMP Tue Jan 15 12:11:59 UTC 2013 >> [ 0.000000] Command line: root=/dev/xvda1 rw loglevel=9 debug >> console=hvc0 earlyprintk=xen >> [ 0.000000] ACPI in unprivileged domain disabled >> [ 0.000000] e820: BIOS-provided physical RAM map: >> [ 0.000000] Xen: [mem 0x0000000000000000-0x000000000009ffff] usable >> [ 0.000000] Xen: [mem 0x00000000000a0000-0x00000000000fffff] reserved >> [ 0.000000] Xen: [mem 0x0000000000100000-0x000000007fffffff] usable >> [ 0.000000] bootconsole [xenboot0] enabled >> [ 0.000000] NX (Execute Disable) protection: active >> [ 0.000000] DMI not present or invalid. >> [ 0.000000] e820: update [mem 0x00000000-0x0000ffff] usable ==> reserved >> [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable >> [ 0.000000] No AGP bridge found >> [ 0.000000] e820: last_pfn = 0x80000 max_arch_pfn = 0x400000000 >> [ 0.000000] Base memory trampoline at [ffff88000009a000] 9a000 size 24576 >> [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] >> [ 0.000000] [mem 0x00000000-0x000fffff] page 4k >> [ 0.000000] init_memory_mapping: [mem 0x7fe00000-0x7fffffff] >> [ 0.000000] [mem 0x7fe00000-0x7fffffff] page 4k >> [ 0.000000] BRK [0x023b8000, 0x023b8fff] PGTABLE >> [ 0.000000] BRK [0x023b9000, 0x023b9fff] PGTABLE >> [ 0.000000] init_memory_mapping: [mem 0x7c000000-0x7fdfffff] >> [ 0.000000] [mem 0x7c000000-0x7fdfffff] page 4k >> [ 0.000000] BRK [0x023ba000, 0x023bafff] PGTABLE >> [ 0.000000] BRK [0x023bb000, 0x023bbfff] PGTABLE >> [ 0.000000] BRK [0x023bc000, 0x023bcfff] PGTABLE >> [ 0.000000] init_memory_mapping: [mem 0x00100000-0x7bffffff] >> [ 0.000000] [mem 0x00100000-0x7bffffff] page 4k >> (XEN) d15:v0: unhandled page fault (ec=0000) >> (XEN) Pagetable walk from ffffea0000080330: >> (XEN) L4[0x1d4] = 0000000000000000 ffffffffffffffff >> (XEN) domain_crash_sync called from entry.S >> (XEN) Domain 15 (vcpu#0) crashed on cpu#3: >> (XEN) ----[ Xen-4.3-unstable x86_64 debug=y Not tainted ]---- > > ok, i think i know the cause for now, will check if there is good way > to fix it.
Can you please test attached patch? Thanks Yinghai
fix_xen_2g.patch
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