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micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="/BvfcpyxYdgDCW1s" Content-Disposition: inline --/BvfcpyxYdgDCW1s Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Date: Tue, 13 May 2025 21:20:07 +0200 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: xen-devel Cc: Roger Pau =?utf-8?B?TW9ubsOp?= , Andrew Cooper Subject: Assertion 'desc->arch.creator_domid == DOMID_INVALID' failed Hi, When debugging CI job on Linus' master branch, I added "console=3Dvga vga= =3D,keep" and got PV dom0 crash Xen with: (XEN) [ 40.870435] Assertion 'desc->arch.creator_domid =3D=3D DOMID_INVAL= ID' failed at arch/x86/irq.c:294 (XEN) [ 40.886925] ----[ Xen-4.21-unstable x86_64 debug=3Dy ubsan=3Dy = Not tainted ]---- (XEN) [ 40.903356] CPU: 10 (XEN) [ 40.919824] RIP: e008:[] create_irq+0x272/0x3= 39 (XEN) [ 40.936267] RFLAGS: 0000000000010297 CONTEXT: hypervisor (d0v13) (XEN) [ 40.952709] rax: 00000000fffffff4 rbx: ffff830498007c00 rcx: 0= 000000000001899 (XEN) [ 40.969147] rdx: ffff830498007c5e rsi: 0000000000000002 rdi: f= fff83049830e398 (XEN) [ 40.985892] rbp: ffff830498307d18 rsp: ffff830498307ce8 r8: 0= 000000000000000 (XEN) [ 41.003093] r9: 0000000000000000 r10: 0000000000000000 r11: 0= 000000000000000 (XEN) [ 41.020279] r12: 00000000fffffff4 r13: 000000000000007c r14: f= fffffffffffffff (XEN) [ 41.037489] r15: 000000000000007c cr0: 0000000080050033 cr4: 0= 000000000b526e0 (XEN) [ 41.054699] cr3: 0000000492c34000 cr2: ffff8881001603f0 (XEN) [ 41.071904] fsb: 0000000000000000 gsb: ffff8882365ac000 gss: 0= 000000000000000 (XEN) [ 41.089116] ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: e010 = cs: e008 (XEN) [ 41.106320] Xen code around (create_irq+0x272/0= x339): (XEN) [ 41.123521] 3f d9 ff e9 cc fe ff ff <0f> 0b 48 8d 3d 5a a0 29 00 = e8 f4 3d d9 ff c6 43 (XEN) [ 41.140739] Xen stack trace from rsp=3Dffff830498307ce8: (XEN) [ 41.157931] 000000ff00000001 ffff830497faa000 ffff830498307e00 = 00000000ffffffff (XEN) [ 41.175132] 0000000000010000 ffff830497faa160 ffff830498307d70 = ffff82d0405a6f85 (XEN) [ 41.192351] 00000000000002a0 ffff830498307e24 0000000000000200 = 00000000ffffffff (XEN) [ 41.209551] ffff830497faa000 0000000000000000 ffff830497faa168 = 0000000000010000 (XEN) [ 41.226753] ffff830497faa160 ffff830498307de0 ffff82d0405c9ea6 = 5f24a0ddbbeda194 (XEN) [ 41.244062] ffff830498307e10 0000000000000000 0000000000000001 = ffff830498307e00 (XEN) [ 41.261387] ffff830498307e24 ffff830498307e20 ffff830497faa000 = ffff830498307ef8 (XEN) [ 41.278730] ffff830497faa000 ffff830497f5a000 ffffc9004002ba78 = ffff830498307e68 (XEN) [ 41.296052] ffff82d0405cbd4f ffff82d04053fc3e ffffc9004002ba78 = 00000000000000a0 (XEN) [ 41.313381] 00a0fb0000000001 0000000000000000 0000000000007ff0 = ffffffffffffffff (XEN) [ 41.330708] 000000a000000000 0000000000000000 0000000000000000 = ffff830498307ef8 (XEN) [ 41.348026] ffff830497f5a000 0000000000000021 0000000000000000 = ffffc9004002ba78 (XEN) [ 41.365357] ffff830498307ee8 ffff82d0405427db ffff8881d6961b40 = 0000000000000001 (XEN) [ 41.382680] 000000a000000000 000000000000000d 0000000000000000 = ffff830498307ee8 (XEN) [ 41.400003] ffff82d0405e7bc2 ffff830497f5a000 0000000000000000 = ffff830497f5a000 (XEN) [ 41.417343] 0000000000000000 0000000000000000 ffff830498307fff = 0000000000000000 (XEN) [ 41.434674] 00007cfb67cf80e7 ffff82d0402012d3 ffff8881d6961b40 = ffff888100ef30c0 (XEN) [ 41.452010] 0000000000000001 0000000000000005 0000000000000000 = ffff888100ef3000 (XEN) [ 41.469342] 0000000000000202 0000000000000001 0000000000007ff0 = ffff8881d6961b40 (XEN) [ 41.486681] 0000000000000021 ffffffff8229d355 000000a000000000 = ffffc9004002ba78 (XEN) [ 41.504015] Xen call trace: (XEN) [ 41.521314] [] R create_irq+0x272/0x339 (XEN) [ 41.538636] [] F allocate_and_map_msi_pirq+0x= 51/0x5ec (XEN) [ 41.555960] [] F physdev_map_pirq+0xbf6/0xd30 (XEN) [ 41.573282] [] F do_physdev_op+0x1373/0x2c4c (XEN) [ 41.590618] [] F pv_hypercall+0x6be/0x838 (XEN) [ 41.607947] [] F lstar_enter+0x143/0x150 (XEN) [ 41.625269]=20 (XEN) [ 41.836038]=20 (XEN) [ 41.854778] **************************************** (XEN) [ 41.877320] Panic on CPU 10: (XEN) [ 41.897494] Assertion 'desc->arch.creator_domid =3D=3D DOMID_INVAL= ID' failed at arch/x86/irq.c:294 (XEN) [ 41.924180] **************************************** I got it twice in a row already, so looks rather reliable. As you can see by the timestamps, it's (expectedly) rather slow - I guess that's relevant. This is Xen staging from yesterday. It's on the ADL runner, haven't tried this one on others yet. Full console log at https://gist.github.com/marmarek/47d70eb68db03caff14dfb= b936f9149b --=20 Best Regards, Marek Marczykowski-G=C3=B3recki Invisible Things Lab --/BvfcpyxYdgDCW1s Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhrpukzGPukRmQqkK24/THMrX1ywFAmgjm2gACgkQ24/THMrX 1yyY6gf+K3prYvoBDV7cb5nf7SQkHjpk5aHp3tzXcAkQslDCufeXS9H5m0epdOXt V2dtEhD3MtG5wc0xY5n+2x6p79/q4t9U4LCrf1b2QkkllmrmZTHTDI7+PcbYdxEj 2XlxRkIrkeO/B16C9tGonppmwHtHeH8Z3BlcKd2nC3FAgRtoxnLVzI18mCwJzCA/ 4C7GLLiS6w5dGiO4h3rs6cXj8iyQ77zvY/WxlLNGNbCQw9EhGUYvKeYozy8j2i9x 2VKL1TXQwxeIvzwhxtjmJdXoUlTLgQ9Wh0F6to4mkDVxG+G6uaHkiIf480JZKWCd ZzeRXcK1gJd1gbYcKZviwAwgPA3PsQ== =5Mle -----END PGP SIGNATURE----- --/BvfcpyxYdgDCW1s--