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Re: [Xen-users] Ubuntu 16.0.4 LTS boot crash on xen 4.6.5



On 27/03/17 21:30, domain@xxxxxxxx wrote:
> 
> I'm trying to find out a crash when booting a Ubuntu 4.8.0-32-generic
> dom0 on a recent xen 4.6.5.
> 
> Some information about hardware and software versions:
> Supermicro X10QBi, Version 3.0, Build Date 05/04/2016 12:38:52
> CPUs 4x Intel (R) Xeon (R) CPU E7 -8890 v4 @ 2.20GHz
> RAM 6291456 MB (DDR4 1600MHz)
> 
> Xen version: 4.6.5 (ubuntu package)
> Xen options: placeholder loglvl=all guest_loglvl=all console=com2
> com2=115200,8n1 dom0_mem=1048576M,min:1048576M,max:1048576M
> dom0_max_vcpus=48
> 
> ...
> (XEN) *** LOADING DOMAIN 0 ***
> (XEN)  Xen  kernel: 64-bit, lsb, compat32
> (XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x225e000
> (XEN) PHYSICAL MEMORY ARRANGEMENT:
> (XEN)  Dom0 alloc.:   0000040338000000->000004033c000000 (268415745
> pages to be allocated)
> (XEN)  Init. ramdisk: 000004ffff301000->000004fffffff1a0
> (XEN) VIRTUAL MEMORY ARRANGEMENT:
> (XEN)  Loaded kernel: ffffffff81000000->ffffffff8225e000
> (XEN)  Init. ramdisk: 0000000000000000->0000000000000000
> (XEN)  Phys-Mach map: 0000008000000000->0000008080000000
> (XEN)  Start info:    ffffffff8225e000->ffffffff8225e4b4
> (XEN)  Page tables:   ffffffff8225f000->ffffffff82274000
> (XEN)  Boot stack:    ffffffff82274000->ffffffff82275000
> (XEN)  TOTAL:         ffffffff80000000->ffffffff82400000
> (XEN)  ENTRY ADDRESS: ffffffff81f83180
> (XEN) Dom0 has maximum 48 VCPUs
> (XEN) setup 0000:3f:0e.2 for d0 failed (-22)
> (XEN) setup 0000:3f:0e.3 for d0 failed (-22)
> (XEN) setup 0000:3f:0e.4 for d0 failed (-22)
> (XEN) setup 0000:3f:0e.5 for d0 failed (-22)
> (XEN) setup 0000:3f:0e.6 for d0 failed (-22)
> (XEN) setup 0000:3f:0e.7 for d0 failed (-22)
> (XEN) setup 0000:7f:0e.2 for d0 failed (-22)
> (XEN) setup 0000:7f:0e.3 for d0 failed (-22)
> (XEN) setup 0000:7f:0e.4 for d0 failed (-22)
> (XEN) setup 0000:7f:0e.5 for d0 failed (-22)
> (XEN) setup 0000:7f:0e.6 for d0 failed (-22)
> (XEN) setup 0000:7f:0e.7 for d0 failed (-22)
> (XEN) setup 0000:bf:0e.2 for d0 failed (-22)
> (XEN) setup 0000:bf:0e.3 for d0 failed (-22)
> (XEN) setup 0000:bf:0e.4 for d0 failed (-22)
> (XEN) setup 0000:bf:0e.5 for d0 failed (-22)
> (XEN) setup 0000:bf:0e.6 for d0 failed (-22)
> (XEN) setup 0000:bf:0e.7 for d0 failed (-22)
> (XEN) setup 0000:ff:0e.2 for d0 failed (-22)
> (XEN) setup 0000:ff:0e.3 for d0 failed (-22)
> (XEN) setup 0000:ff:0e.4 for d0 failed (-22)
> (XEN) setup 0000:ff:0e.5 for d0 failed (-22)
> (XEN) setup 0000:ff:0e.6 for d0 failed (-22)
> (XEN) setup 0000:ff:0e.7 for d0 failed (-22)
> (XEN) Scrubbing Free RAM on 1 nodes using 96 CPUs
> (XEN)
> .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................done.
> 
> (XEN) Initial low memory virq threshold set at 0x4000 pages.
> (XEN) Std. Loglevel: All
> (XEN) Guest Loglevel: All
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
> input to Xen)
> (XEN) Freed 312kB init memory.
> mapping kernel into physical memory
> about to get started...
> (XEN) d0v0 Unhandled invalid opcode fault/trap [#6, ec=0000]
> (XEN) domain_crash_sync called from entry.S: fault at ffff82d08022b663
> create_bounce_frame+0x12b/0x13a
> (XEN) Domain 0 (vcpu#0) crashed on cpu#0:
> (XEN) ----[ Xen-4.6.5  x86_64  debug=n  Not tainted ]----
> (XEN) CPU:    0
> (XEN) RIP:    e033:[<ffffffff81f8c78a>]

Can you please try to translate RIP to source file + line number using
addr2line?

> (XEN) RFLAGS: 0000000000000246   EM: 1   CONTEXT: pv guest (d0v0)
> (XEN) rax: 0000000000000081   rbx: 0000000000000000   rcx: 00003fffc0000000
> (XEN) rdx: 0010000000000001   rsi: 0000000000000080   rdi: 00100403400000e7
> (XEN) rbp: ffffffff81e03dd8   rsp: ffffffff81e03d08   r8:  0000000000000000
> (XEN) r9:  0000000000000000   r10: 0000000000007ff0   r11: 0000000000000000
> (XEN) r12: 0000000000000000   r13: 00003ffffffff000   r14: 0000000080000000
> (XEN) r15: 0000000100001000   cr0: 0000000080050033   cr4: 00000000003526e0
> (XEN) cr3: 0000040339e06000   cr2: 0000000000000000
> (XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: e02b   cs: e033
> (XEN) Guest stack trace from rsp=ffffffff81e03d08:
> (XEN)    00003fffc0000000 0000000000000000 ffffffff81f8c78a
> 000000010000e030
> (XEN)    0000000000010046 ffffffff81e03d40 000000000000e02b
> 000001fffffffff0
> (XEN)    0000000100000000 0000000080000000 0000020000000001
> ffff880001e06018
> (XEN)    ffff880001e06000 0000000000080403 0000000000000001
> ffffffffff240000
> (XEN)    ffffffffff200000 0000000200000000 00000000fffffe02
> 0000000000180403
> (XEN)    0000000100000000 0000000010000000 0000000004cff000
> 0000000080001000
> (XEN)    0000060080000000 0000000000000018 ffffffff81e03e70
> ffffffff81f8bb46
> (XEN)    ffffffff81e03e38 ffffffff81022d98 0000000000000000
> 0000000000007ff0
> (XEN)    0000000000000001 000000001008799d 0000000010000000
> 0000010000000000
> (XEN)    7ff0000000000002 ffffffff00000018 ffffffff82037020
> 80d2c2098044005e
> (XEN)    0000000001000000 ffffffff81e03f00 ffffffff82031920
> 0000000000000000
> (XEN)    0000000000000000 ffffffff81e03e88 ffffffff81f92653
> 0000000001000000
> (XEN)    ffffffff81e03ef0 ffffffff81f8fe71 ffffffff00000010
> ffffffff81e03f00
> (XEN)    ffffffff81e03eb8 80d2c2098044005e ffffffff81e03e88
> 80d2c2098044005e
> (XEN)    ffffffffffffffff 0000000000000000 ffffffff82031920
> 0000000000000000
> (XEN)    0000000000000000 ffffffff81e03f30 ffffffff81f83c28
> 80d2c2098044005e
> (XEN)    0000000000000000 ffffffff81e03f60 ffffffff81e03f5c
> 0000000000000000
> (XEN)    0000000000000000 ffffffff81e03f40 ffffffff81f832d5
> ffffffff81e03ff8
> (XEN)    ffffffff81f8aacc 000406f100000000 0000000100400800
> 0300000100000032
> (XEN)    0000000000000005 0000000000000020 0000000000000000
> 0000000000000000

And the obvious kernel addresses on the stack, too, please?

> (XEN) Hardware Dom0 crashed: rebooting machine in 5 seconds.
> (XEN) Resetting with ACPI MEMORY or I/O RESET_REG.
> 
> Full log file attached.

The kernel config might help for further diagnosis.

> Any idea what is causing the BIG boom?

Crystal ball reading isn't one of my gifts. :-)


Juergen


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