Piotr Król, I have submitted a patch today to overcome some AP timeout issue.
https://review.coreboot.org/#/c/coreboot/+/26286/ Can you please pick this, and see if you are still seeing timeout issue or not. I would also interested to know about the number of core you have on your system. I believe timeout count somehow not meeting the max core running time. Thanks, Subrata -----Original Message----- From: Piotr Król [mailto:piotr.k...@3mdeb.com] Sent: Thursday, May 17, 2018 5:18 PM To: Banik, Subrata <subrata.ba...@intel.com> Cc: coreboot@coreboot.org Subject: Exception on Skylake after enabling ACPI timer emulation -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi Surbata, I'm trying to enable i7-6500 custom hardware and facing exception when boot flow hit enable_pm_timer_emulation which you submitted in Feb 2017. Stack look like that: Enable ACPI Timer Emulation via MSR 0x121 CPU Index 0 - APIC 0 Unexpected Exception:13 @ 10:7ab15acf - Halting Code: 0 eflags: 00010002 cr2: 00000000 eax: 01311808 ebx: 00000000 ecx: 00000121 edx: 262e8b51 edi: 00000003 esi: 00850089 ebp: 7ab3c4a0 esp: 7ab44e50 7ab15a88: 00 83 c4 10 b9 aa 01 00 7ab15a90: 00 8b 80 94 00 00 00 80 7ab15a98: b8 ca 04 00 00 00 74 09 7ab15aa0: 0f 32 0d c0 10 00 00 eb 7ab15aa8: 07 0f 32 25 3f ef ff ff 7ab15ab0: 0f 30 57 57 68 57 0d b3 7ab15ab8: 7a 6a 03 e8 4e 37 01 00 7ab15ac0: ba 51 8b 2e 26 b8 08 18 7ab15ac8: 31 01 b9 21 01 00 00 0f 7ab15ad0: 30 58 5a 68 82 0d b3 7a 7ab15ad8: 6a 03 e8 2f 37 01 00 b8 7ab15ae0: 01 00 00 00 89 df 0f a2 7ab15ae8: 89 de 89 fb 83 c4 10 0f 7ab15af0: ba e1 12 73 0c b9 f8 01 7ab15af8: 00 00 0f 32 83 c8 01 0f 7ab15b00: 30 56 56 68 9e 0d b3 7a % I can't find document that describe this MSR, but it seems that something is wrong. Any ideas for further debugging are welcome. P.S. According to commit message: https://github.com/coreboot/coreboot/commit/f004f66ca7b0c428c04d60257383 19187cf911fe It should be tied to review: https://review.coreboot.org/#/c/18288/ but that link give me error. Gerrit broken or review "disappeared"? Best Regards, - -- Piotr Król Embedded Systems Consultant https://3mdeb.com | @3mdeb_com -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEE4DCbLYWmfoRjKeNLsu5x6WeqnkwFAlr9a9wACgkQsu5x6Weq nkwXIRAAms9hkcg1E49G1ww30ZdOR0k1XUn1n63B5ccpfGcGQsZPKPdDzIHrm7Ns 2vYoJlLAbfg0RbgM06NEejl4rxYUOEMMsxm+Zc5zf/jFe2nd5nhKXdc4GnXpdMlT UcKyl7g89sMeeTijF/cCm3T1kBzAlUP2xjAkZbiJssW/HhuwtZO10t1LPJlle8Lm CGvmhiUPViZR+gUA7iAo+Ul8L7L59jk1sGQYIld6Sn118WNA5k6z3S/YoExVxUza uyJ4rtx3OkiyhtULk6D3BmqQzv9uVY9axC0gBdS0f9OkD/GdO/HGM3NZdsoaGXK6 kIo3AkmYm2QeCT/g3jqx5jr/uA9ZVtUsa5T1SMxiGtd84hzCfNW5fgkmcY7M7dXc 9BQ6puq86z8ofbL6cvPHk/wsDUEU9SV8+dzQh5N/b3ux7gobYxmospVNPPK/2FNO AG6EMDlevwQt2CaFJsMpfFqUaSk6+j7MYrOmdeqBOt68GGuE+MyyNoK6O0xsjKId wYGh0U7ua4/wFHdyhH/G9NEnC5jDPuiiHfYoRnvVST/FivRqKJ4VY28vv1xDGBEO rQihqqEN4PiC04Q/8oQR4oy8xph9AQhOLgal0T0QrfrICOKY/GG3ZhTfWKRGk9FN xioCb9unVc9aWHtAqTeshQBq1p0zsTLmEiYYKWJ1tvBMj1hYVr4= =42F1 -----END PGP SIGNATURE----- -- coreboot mailing list: coreboot@coreboot.org https://mail.coreboot.org/mailman/listinfo/coreboot