Re: [Xen-users] domU crashes when given 4g or more of ram

[darkshvein l <darkshvein@xxxxxxxxx>]

MB Gigabyte? I think, it is BIOS problem.

2015-06-01 17:54 GMT+04:00, Phil Susi <psusi@xxxxxxxxxx>:
> I have a domU that has been running just fine for the last year with
> 2048m of ram.  I changed the config to give it 4096m of ram, and now
> when I start it up, it crashes without any output to the console at all.
>   It doesn't even make it to the grub loader screen.  What could be the
> cause?  It might be worth mentioning that the host is 64 bit but the
> guest is only 32 bit.
>
> My cfg is:
>
> name="devserv"
> memory=3000
> disk = [ '/dev/hyper1/devserv,,xvda' ]
> vcpus="8"
> kernel = "/home/psusi/core.elf"
> vif = [ '' ]
> on_crash = "preserve"
>
> And I also noticed that xl dmesg shows this:
>
> (XEN) d4:v0: unhandled page fault (ec=0002)
> (XEN) Pagetable walk from 00000000ff7f4fff:
> (XEN)  L4[0x000] = 0000000067289027 00000000000ff7f5
> (XEN)  L3[0x003] = 0000000067285007 00000000000ff7f9
> (XEN)  L2[0x1fb] = 0000000000000000 ffffffffffffffff
> (XEN) domain_crash_sync called from entry.S: fault at ffff82d08021abf0
> compat_create_bounce_frame+0xc6/0xde
> (XEN) Domain 4 (vcpu#0) crashed on cpu#7:
> (XEN) ----[ Xen-4.4.1  x86_64  debug=n  Not tainted ]----
> (XEN) CPU:    7
> (XEN) RIP:    e019:[<0000000000006f4c>]
> (XEN) RFLAGS: 0000000000000287   EM: 1   CONTEXT: pv guest
> (XEN) rax: 00000000ff7f4000   rbx: 00000000fffff000   rcx: 0000000000000fff
> (XEN) rdx: 000000000092b000   rsi: 00000000ff7f5000   rdi: 00000000ff7f4000
> (XEN) rbp: 000000000040ae38   rsp: 000000000040ae18   r8:  ffff830827060000
> (XEN) r9:  ffffffffffff8000   r10: ffff83083f110000   r11: ffff83083f110000
> (XEN) r12: ffff830827078068   r13: 00000073b55351c8   r14: ffff830827078060
> (XEN) r15: ffff82d0802e2620   cr0: 000000008005003b   cr4: 00000000001526f0
> (XEN) cr3: 000000083f94d000   cr2: 00000000ff7f4fff
> (XEN) ds: e021   es: e021   fs: e021   gs: e021   ss: e021   cs: e019
> (XEN) Guest stack trace from esp=0040ae18:
> (XEN)   00000002 00006f4c 0001e019 00010087 fffff000 00000000 ff7f4000
> 00000000
> (XEN)   0040afb8 0000113c 00000000 00000000 00000008 3f8b8007 00100000
> 00000000
> (XEN)   00100000 00000000 000ff7fa 00000000 00000000 00000000 0000092e
> 00000000
> (XEN)   00000000 00000000 000ff7f5 00000000 00000800 00000000 00000937
> 00000000
> (XEN)   00000000 00449000 000ff7fa 00000000 00000937 00000000 00000800
> 00000000
> (XEN)   00100000 000001ff 00000000 00000000 00000001 00000000 00007ff0
> 00000001
> (XEN)   00000000 0040c000 00000800 00000000 00000004 00000000 00000001
> 00000000
> (XEN)   00000000 00000002 00067289 00000000 00000005 00067289 00000000
> 00000004
> (XEN)   0072f68b 00000000 66a83001 00000000 0000092c 00000000 2f68d001
> 00000007
> (XEN)   000ffffb 00000000 66a84001 00000000 0000092d 00000000 2f68c001
> 00000007
> (XEN)   000ffffa 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)   00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)   00000000 00000000 00000000 00000000 00000000 00000000 0092b000
> 00000000
> (XEN)   0040aff8 00006b10 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)   00000000 00000000 00000000 00000000 00000000 00000000 0092b000
> 00000000
> (XEN)   00000000 00000011 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
>
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