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RE: Discussion of Xenheap problems on AArch64


  • To: Julien Grall <julien@xxxxxxx>, "sstabellini@xxxxxxxxxx" <sstabellini@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Henry Wang <Henry.Wang@xxxxxxx>
  • Date: Tue, 11 May 2021 01:11:10 +0000
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  • Cc: Wei Chen <Wei.Chen@xxxxxxx>, Penny Zheng <Penny.Zheng@xxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>
  • Delivery-date: Tue, 11 May 2021 01:11:49 +0000
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  • Thread-topic: Discussion of Xenheap problems on AArch64

Hi Julien,

> From: Julien Grall <julien@xxxxxxx>
> Hi Henry,
> 
> On 07/05/2021 05:06, Henry Wang wrote:
> >> From: Julien Grall <julien@xxxxxxx>
> >> On 28/04/2021 10:28, Henry Wang wrote:
> [...]
> 
> > when I continue booting Xen, I got following error log:
> >
> > (XEN) CPU:    0
> > (XEN) PC:     00000000002b5a5c alloc_boot_pages+0x94/0x98
> > (XEN) LR:     00000000002ca3bc
> > (XEN) SP:     00000000002ffde0
> > (XEN) CPSR:   600003c9 MODE:64-bit EL2h (Hypervisor, handler)
> > (XEN)
> > (XEN)   VTCR_EL2: 80000000
> > (XEN)  VTTBR_EL2: 0000000000000000
> > (XEN)
> > (XEN)  SCTLR_EL2: 30cd183d
> > (XEN)    HCR_EL2: 0000000000000038
> > (XEN)  TTBR0_EL2: 000000008413c000
> > (XEN)
> > (XEN)    ESR_EL2: f2000001
> > (XEN)  HPFAR_EL2: 0000000000000000
> > (XEN)    FAR_EL2: 0000000000000000
> > (XEN)
> > (XEN) Xen call trace:
> > (XEN)    [<00000000002b5a5c>] alloc_boot_pages+0x94/0x98 (PC)
> > (XEN)    [<00000000002ca3bc>] setup_frametable_mappings+0xa4/0x108
> (LR)
> > (XEN)    [<00000000002ca3bc>] setup_frametable_mappings+0xa4/0x108
> > (XEN)    [<00000000002cb988>] start_xen+0x344/0xbcc
> > (XEN)    [<00000000002001c0>]
> arm64/head.o#primary_switched+0x10/0x30
> > (XEN)
> > (XEN) ****************************************
> > (XEN) Panic on CPU 0:
> > (XEN) Xen BUG at page_alloc.c:432
> > (XEN) ****************************************
> 
> This is happening without my patch series applied, right? If so, what
> happen if you apply it?

No, I am afraid this is with your patch series applied, and that is why I
am a little bit confused about the error log...

Thanks for your patience.

Kind regards,

Henry

> 
> Cheers,
> 
> --
> Julien Grall

 


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