[Xen-users] Xen domU PV linux-3.7.0-hardened won't boot

[Fabiano Francesconi <fabiano.francesconi@xxxxxxxxx>]

Hello everybody, 
today I was trying to update my domU to linux kernel v3.

At the moment it's running with a 2.6.38 kernel and it's running smooth.
I simply took the .config and run a make oldconfig in linux v3 sources and what 
I get is that it won't boot. No kernel bootlog to inspect.

I'm running xen 4.2.0 on a 32bit paravirt environment.
The dom0 kernel is Linux 3.3.8 and the other domU machine I have is running 
with the same version of the kernel.

The sole machine that is giving me troubles is the hardened one, currently 
running with grsec+pax on the 2.6.38.

This is my current configuration:
- kernel config file (domU): http://codepad.org/sgnyXLqL
- domU configuration file (xen): http://codepad.org/jdqO3W9H

This is the output:

xevelon ~ # xl create -c /xen/configs/caprica 
Parsing config from /xen/configs/caprica
Daemon running with PID 4460
libxl: error: libxl_dom.c:34:libxl__domain_type: unable to get domain type for 
domid=6
Unable to attach console
libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus: console child [0] 
exited with error status 1


xevelon ~ # cat /var/log/xen/xl-caprica.log
Waiting for domain caprica (domid 6) to die [pid 4461]
Domain 6 has shut down, reason code 3 0x3
Action for shutdown reason code 3 is destroy
Domain 6 needs to be cleaned up: destroying the domain
Done. Exiting now



xl dmesg:
XEN) d6:v0: unhandled page fault (ec=0000)
(XEN) Pagetable walk from 00000e94:
(XEN) L3[0x000] = 0000000000000000 ffffffff
(XEN) domain_crash_sync called from entry.S (ff1ef878)
(XEN) Domain 6 (vcpu#0) crashed on cpu#3:
(XEN) ----[ Xen-4.2.0 x86_32p debug=n Not tainted ]----
(XEN) CPU: 3
(XEN) EIP: e019:[<c10b2fc2>]
(XEN) EFLAGS: 00000206 EM: 1 CONTEXT: pv guest
(XEN) eax: 00003f3f ebx: 00000000 ecx: 00000000 edx: 00000000
(XEN) esi: c1a80000 edi: c14b1000 ebp: 00000000 esp: c1601f3c
(XEN) cr0: 8005003b cr4: 000006f4 cr3: 28e51000 cr2: 00000e94
(XEN) ds: e021 es: e021 fs: e021 gs: e021 ss: e021 cs: e019
(XEN) Guest stack trace from esp=c1601f3c:
(XEN) 00000000 c10b2fc2 0001e019 00010006 00000000 c16561b2 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 c1a80000 c14b1000
(XEN) 00000000 00000000 c16dad04 00000068 00000000 00000000 00000000 00000000
(XEN) 014a5000 c1023a28 00000082 00000000 00000000 00000000 00000000 c16dad04
(XEN) 00000000 00000000 00000000 00000068 00000060 00000068 00000068 000000d8
(XEN) 00000000 00000000 80000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000




- xl info: http://codepad.org/wJCTXtoD
- xl create (-vvv ultraverbose): http://codepad.org/XhXN5ztl

Does somebody have any clue about it?

Thank you so much!-- 
Fabiano Francesconi [GPG key: 0x81E53461]



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