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Re: [Xen-devel] [Xen-users] Hypervisor trap when dumping register

To: Chenxiao Zhao <chenxiao.zhao@xxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>

From: Julien Grall <julien.grall@xxxxxxx>

Date: Wed, 25 May 2016 12:24:48 +0100

Cc: Wei Liu <wei.liu2@xxxxxxxxxx>

Delivery-date: Wed, 25 May 2016 11:24:55 +0000

List-id: Xen developer discussion <xen-devel.lists.xen.org>

(Move the thread to Xen-devel) On 26/05/16 02:47, Chenxiao Zhao wrote:

On 5/25/2016 2:37 AM, Julien Grall wrote:

[...]

root@linaro-alip:~# (XEN) *** Serial input -> Xen (type 'CTRL-x' three
times to
switch input to DOM0)
(XEN) 'd' pressed -> dumping registers
(XEN)
(XEN) *** Dumping CPU0 host state: ***
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000245f10Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8Hypervisor Trap. HSR=0x96000007 EC=0x25
IL=1 Syndrome=0x7
(XEN) CPU0: Unexpected Trap: Hypervisor
(XEN) ----[ Xen-4.7.0-rc  arm64  debug=y  Tainted:    C ]----
(XEN) CPU:    0
(XEN) PC:     0000000000231dc8

I was able to reproduce it with the latest RC on Juno r2. I will

investigate it.

-- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel

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