[Xen-devel] kdump with xen-unstable on efi machine

[Juergen Gross <jgross@xxxxxxxx>]

Hi,

I tried to enable kdump on my test-machine with actual xen-unstable
booting via EFI.

The kdump kernel is not being loaded.

I'm seeing the memory being reserved:

(XEN) EFI RAM map:
(XEN)  0000000000000000 - 00000000000a0000 (usable)
(XEN)  0000000000100000 - 000000004bc00000 (usable)
(XEN)  000000004bc00000 - 000000005bc00000 (reserved)
(XEN)  000000005bc00000 - 000000005bfec000 (usable)
(XEN)  000000005bfec000 - 000000005c000000 (ACPI NVS)
(XEN)  000000005c000000 - 000000006a429000 (usable)
(XEN)  000000006a429000 - 000000006a42c000 (reserved)
(XEN)  000000006a42c000 - 000000006a7a2000 (usable)
(XEN)  000000006a7a2000 - 000000006a7a8000 (reserved)
(XEN)  000000006a7a8000 - 000000006a987000 (usable)
(XEN)  000000006a987000 - 000000006a98d000 (reserved)
(XEN)  000000006a98d000 - 000000006aa63000 (usable)
(XEN)  000000006aa63000 - 000000006aa73000 (reserved)
(XEN)  000000006aa73000 - 000000006ac60000 (usable)
(XEN)  000000006ac60000 - 000000006ac61000 (reserved)
(XEN)  000000006ac61000 - 000000006ac9b000 (ACPI data)
(XEN)  000000006ac9b000 - 000000006acac000 (reserved)
(XEN)  000000006acac000 - 000000006acad000 (usable)
(XEN)  000000006acad000 - 000000006acae000 (reserved)
(XEN)  000000006acae000 - 000000007189c000 (usable)
(XEN)  000000007189c000 - 0000000071946000 (reserved)
(XEN)  0000000071946000 - 0000000072d76000 (ACPI NVS)
(XEN)  0000000072d76000 - 0000000072db2000 (ACPI data)
(XEN)  0000000072db2000 - 0000000072edc000 (usable)
(XEN)  0000000080000000 - 0000000090000000 (reserved)
(XEN)  0000000100000000 - 0000002080000000 (usable)
(XEN) Kdump: 256MB (262144kB) at 0x206dff4000

I'd expect this area being visible in the efi or e820 map presented to
dom0, but I can't see anything:

[    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 0x0000000000100000-0x000000004bbfffff] usable
[    0.000000] Xen: [mem 0x000000004bc00000-0x000000005bbfffff] reserved
[    0.000000] Xen: [mem 0x000000005bc00000-0x000000005bfebfff] usable
[    0.000000] Xen: [mem 0x000000005bfec000-0x000000005bffffff] ACPI NVS
[    0.000000] Xen: [mem 0x000000005c000000-0x000000006a428fff] usable
[    0.000000] Xen: [mem 0x000000006a429000-0x000000006a42bfff] reserved
[    0.000000] Xen: [mem 0x000000006a42c000-0x000000006a7a1fff] usable
[    0.000000] Xen: [mem 0x000000006a7a2000-0x000000006a7a7fff] reserved
[    0.000000] Xen: [mem 0x000000006a7a8000-0x000000006a986fff] usable
[    0.000000] Xen: [mem 0x000000006a987000-0x000000006a98cfff] reserved
[    0.000000] Xen: [mem 0x000000006a98d000-0x000000006aa62fff] usable
[    0.000000] Xen: [mem 0x000000006aa63000-0x000000006aa72fff] reserved
[    0.000000] Xen: [mem 0x000000006aa73000-0x000000006ac5ffff] usable
[    0.000000] Xen: [mem 0x000000006ac60000-0x000000006ac60fff] reserved
[    0.000000] Xen: [mem 0x000000006ac61000-0x000000006ac9afff] ACPI data
[    0.000000] Xen: [mem 0x000000006ac9b000-0x000000006acabfff] reserved
[    0.000000] Xen: [mem 0x000000006acac000-0x000000006acacfff] usable
[    0.000000] Xen: [mem 0x000000006acad000-0x000000006acadfff] reserved
[    0.000000] Xen: [mem 0x000000006acae000-0x000000007189bfff] usable
[    0.000000] Xen: [mem 0x000000007189c000-0x0000000071945fff] reserved
[    0.000000] Xen: [mem 0x0000000071946000-0x0000000072d75fff] ACPI NVS
[    0.000000] Xen: [mem 0x0000000072d76000-0x0000000072db1fff] ACPI data
[    0.000000] Xen: [mem 0x0000000072db2000-0x0000000072edbfff] usable
[    0.000000] Xen: [mem 0x0000000080000000-0x000000008fffffff] reserved
[    0.000000] Xen: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[    0.000000] Xen: [mem 0x00000000fecc0000-0x00000000fecc0fff] reserved
[    0.000000] Xen: [mem 0x00000000fee00000-0x00000000feefffff] reserved
[    0.000000] Xen: [mem 0x0000000100000000-0x000000207fffffff] usable
[    0.000000] bootconsole [xenboot0] enabled
[    0.000000] movable_node option not supported
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] e820: user-defined physical RAM map:
[    0.000000] user: [mem 0x0000000000000000-0x000000000009ffff] usable
[    0.000000] user: [mem 0x00000000000a0000-0x00000000000fffff] reserved
[    0.000000] user: [mem 0x0000000000100000-0x000000004bbfffff] usable
[    0.000000] user: [mem 0x000000004bc00000-0x000000005bbfffff] reserved
[    0.000000] user: [mem 0x000000005bc00000-0x000000005bfebfff] usable
[    0.000000] user: [mem 0x000000005bfec000-0x000000005bffffff] ACPI NVS
[    0.000000] user: [mem 0x000000005c000000-0x000000006a428fff] usable
[    0.000000] user: [mem 0x000000006a429000-0x000000006a42bfff] reserved
[    0.000000] user: [mem 0x000000006a42c000-0x000000006a7a1fff] usable
[    0.000000] user: [mem 0x000000006a7a2000-0x000000006a7a7fff] reserved
[    0.000000] user: [mem 0x000000006a7a8000-0x000000006a986fff] usable
[    0.000000] user: [mem 0x000000006a987000-0x000000006a98cfff] reserved
[    0.000000] user: [mem 0x000000006a98d000-0x000000006aa62fff] usable
[    0.000000] user: [mem 0x000000006aa63000-0x000000006aa72fff] reserved
[    0.000000] user: [mem 0x000000006aa73000-0x000000006ac5ffff] usable
[    0.000000] user: [mem 0x000000006ac60000-0x000000006ac60fff] reserved
[    0.000000] user: [mem 0x000000006ac61000-0x000000006ac9afff] ACPI data
[    0.000000] user: [mem 0x000000006ac9b000-0x000000006acabfff] reserved
[    0.000000] user: [mem 0x000000006acac000-0x000000006acacfff] usable
[    0.000000] user: [mem 0x000000006acad000-0x000000006acadfff] reserved
[    0.000000] user: [mem 0x000000006acae000-0x000000007189bfff] usable
[    0.000000] user: [mem 0x000000007189c000-0x0000000071945fff] reserved
[    0.000000] user: [mem 0x0000000071946000-0x0000000072d75fff] ACPI NVS
[    0.000000] user: [mem 0x0000000072d76000-0x0000000072db1fff] ACPI data
[    0.000000] user: [mem 0x0000000072db2000-0x0000000072edbfff] usable
[    0.000000] user: [mem 0x0000000080000000-0x000000008fffffff] reserved
[    0.000000] user: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[    0.000000] user: [mem 0x00000000fecc0000-0x00000000fecc0fff] reserved
[    0.000000] user: [mem 0x00000000fee00000-0x00000000feefffff] reserved
[    0.000000] user: [mem 0x0000000100000000-0x000000207fffffff] usable
[    0.000000] efi: EFI v2.31 by FUJITSU LIMITED


Juergen

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