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Re: [Xen-devel] booting domU guest as pvh works in xen-4.11.1 but fails in 4.12
- To: Pry Mar <pryorm09@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Tue, 16 Apr 2019 14:23:01 +0100
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- Cc: M A Young <m.a.young@xxxxxxxxxxxx>
- Delivery-date: Tue, 16 Apr 2019 13:23:27 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
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On 16/04/2019 00:18, Pry Mar wrote:
Hello,
https://paste.debian.net/1077718/
I get a kernel panic as shown in the paste above no matter how I
launch pvh, with bootloader (pygrub), kernel direct (4.18+), or
pvgrub2 (i386-xen_pvh support).
From the log:
traps: modprobe[48] trap invalid opcode ip:7f797dc7bb95 sp:7ffe3099cdb8 error:0 in ld-2.29.so[7f797dc61000+21000]
Can you disassemble ld-2.29.so and find out what that instruction
is? It is almost certainly a related factor.
[ 1.127818] Run /init as init process
[ 1.130195] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004
[ 1.130230] CPU: 0 PID: 1 Comm: init Not tainted 5.0.0-8-generic #9-Ubuntu
[ 1.130243] Call Trace:
[ 1.130284] dump_stack+0x63/0x8a
[ 1.130296] panic+0x101/0x2a7
[ 1.130306] do_exit.cold.24+0x26/0x75
[ 1.130315] do_group_exit+0x43/0xb0
[ 1.130325] get_signal+0x139/0x6d0
[ 1.130336] do_signal+0x34/0x710
[ 1.130345] ? do_trap+0xda/0xe0
[ 1.130375] exit_to_usermode_loop+0x8e/0x100
[ 1.130387] prepare_exit_to_usermode+0x5a/0x80
[ 1.130399] ? invalid_op+0xa/0x20
[ 1.130408] retint_user+0x8/0x8
[ 1.130418] RIP: 0033:0x7feef6fe4b95
[ 1.130433] Code: Bad RIP value.
[ 1.130441] RSP: 002b:00007ffdda330e78 EFLAGS: 00010246
[ 1.130452] RAX: 000000000000000c RBX: 0000000000000001 RCX: 000000000000000b
[ 1.130466] RDX: 0000000000000042 RSI: 00007feef6fecd75 RDI: 0000000000000000
[ 1.130479] RBP: 000055c1b07f7040 R08: 0000000000000019 R09: 0000000000000001
[ 1.130493] R10: 0000000000000000 R11: 000000000000004d R12: 000000000000000b
[ 1.130507] R13: 00007feef6fcb810 R14: 0000000000000000 R15: 00007ffdda331119
[ 1.130733] Kernel Offset: 0x2400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
This looks to be related to the #UD from above, but rather more
fatal.
~Andrew
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