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Wed, 11 Dec 2024 06:41:18 -0500 (EST) Date: Wed, 11 Dec 2024 12:41:17 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: xen-devel Cc: Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , regressions@lists.linux.dev Subject: [REGRESSION] Linux 6.6.64 crashes when booting as PVH domU Message-ID: Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="GmdDK/bWMBAmn8YR" Content-Disposition: inline --GmdDK/bWMBAmn8YR Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Date: Wed, 11 Dec 2024 12:41:17 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: xen-devel Cc: Juergen Gross , Stefano Stabellini , Oleksandr Tyshchenko , regressions@lists.linux.dev Subject: [REGRESSION] Linux 6.6.64 crashes when booting as PVH domU 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=3Dn Tainted: M ]---- (XEN) CPU: 4 (XEN) RIP: 0008:[] (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. --=20 Best Regards, Marek Marczykowski-G=C3=B3recki Invisible Things Lab --GmdDK/bWMBAmn8YR Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhrpukzGPukRmQqkK24/THMrX1ywFAmdZel0ACgkQ24/THMrX 1ywnkAf7B78k0a25zBk76rTR71NW+VMvQKr2hh5quoNnasjgSp2Avq6Rs7CSA8Kq o1LTT6WtYXzcDLRzOvlrrb25RT/wXJhaKYcl3S40L1atfCVOtx7uTsKbRjpLmHLf HxZeV1AIzk/JlbJyUFJ6bCFzyIncOzIp4GGyb+NeUKanK2g3tWDj1+7P4qgdHaYl X1QKBqwpZpeOM4TcYoR0NnflOqoseguGz4ARJihvGWtNIs7ahvkhsS9sbFDOJhGT 5mE/MGL2v3W2Q3ifAM9UXYl1oufZ5ye4cFXCeFsZ8qR8LjzeY2LAdeYxFzE/rVZ4 toWQ3eWCiZGVXTh0E0yNCCVeP7tY9Q== =nPqk -----END PGP SIGNATURE----- --GmdDK/bWMBAmn8YR--