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Re: [REGRESSION] Linux 6.6.64 crashes when booting as PVH domU
- To: Jason Andryuk <jandryuk@xxxxxxxxx>, Ard Biesheuvel <ardb@xxxxxxxxxx>
- From: Jürgen Groß <jgross@xxxxxxxx>
- Date: Wed, 11 Dec 2024 12:53:46 +0100
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>, regressions@xxxxxxxxxxxxxxx, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 11 Dec 2024 11:53:56 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Jason, Ard,
I guess there are some prereq patches missing in stable 6.6.y branch?
Juergen
On 11.12.24 12:41, Marek Marczykowski-Górecki wrote:
Hi,
With Linux 6.6.64 I get the following crash on domU boot:
(XEN) d5v0 Triple fault - invoking HVM shutdown action 1
(XEN) *** Dumping Dom5 vcpu#0 state: ***
(XEN) ----[ Xen-4.19.0 x86_64 debug=n Tainted: M ]----
(XEN) CPU: 4
(XEN) RIP: 0008:[<ffffffff82b64050>]
(XEN) RFLAGS: 0000000000010086 CONTEXT: hvm guest (d5v0)
(XEN) rax: ffffffff82b64050 rbx: ffffffffffe00000 rcx: 00000000c0000101
(XEN) rdx: 0000000000000000 rsi: 0000000003a00038 rdi: 0000000002a9bc98
(XEN) rbp: 0000000000000000 rsp: 0000000002aa0ce8 r8: 0000000000000000
(XEN) r9: 0000000000000000 r10: 0000000000000000 r11: 0000000000000000
(XEN) r12: 0000000000000000 r13: 0000000000000000 r14: 0000000000000000
(XEN) r15: 0000000000000000 cr0: 0000000080000011 cr4: 0000000000000020
(XEN) cr3: 0000000002022000 cr2: 0000000000000000
(XEN) fsb: 0000000000000000 gsb: 0000000002a9ccc0 gss: 0000000000000000
(XEN) ds: 0010 es: 0010 fs: 0000 gs: 0000 ss: 0010 cs: 0008
Linux 6.6.63 works fine.
Looking at the changes, I suspect one of those:
83d123e27623 x86/pvh: Call C code via the kernel virtual mapping
f662b4a69e1d x86/pvh: Set phys_base when calling xen_prepare_pvh()
But I haven't tested this hypothesis yet.
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