Date: Sun, 22 Feb 2015 17:11:23 -0800 From: David Benfell <benfell@parts-unknown.org> To: Ken Moffat <zarniwhoop@ntlworld.com> Cc: cpet <cpet@sdf.org>, Polytropon <freebsd@edvax.de>, freebsd-questions@freebsd.org, Valeri Galtsev <galtsev@kicp.uchicago.edu> Subject: Re: why would I get a segmentation fault on one system but not the other? Message-ID: <20150223011123.GB48633@home.parts-unknown.org> In-Reply-To: <20150223001433.GB7342@milliways> References: <09da5ec0816e098badc49432c802dc18@sdf.org> <390c4c0547fc27e91d28872d29aa2e04@sdf.org> <20150222091956.fd1ec914.freebsd@edvax.de> <20150222104425.GA44573@home.parts-unknown.org> <9134.76.193.19.10.1424620110.squirrel@cosmo.uchicago.edu> <590FB195-C4E9-4D22-8900-ABE784CE9896@parts-unknown.org> <20150222205918.GA68253@home.parts-unknown.org> <11537.76.193.19.10.1424641383.squirrel@cosmo.uchicago.edu> <20150222234849.GA44067@home.parts-unknown.org> <20150223001433.GB7342@milliways>
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--8GpibOaaTibBMecb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Feb 23, 2015 at 12:14:33AM +0000, Ken Moffat wrote: <mutt failed to include text> Hmmm, don't know why your suggestion didn't appear. First the old machine: [benfell@home ~]% grep Features /var/run/dmesg.boot=20 Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG= E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=3D0x7fdafbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3= ,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,AESNI,XSAV= E,OSXSAVE,AVX,F16C,RDRAND> AMD Features=3D0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=3D0x21<LAHF,ABM> Structured Extended Features=3D0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID> XSAVE Features=3D0x1<XSAVEOPT> Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG= E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=3D0x7fdafbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3= ,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,AESNI,XSAV= E,OSXSAVE,AVX,F16C,RDRAND> AMD Features=3D0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=3D0x21<LAHF,ABM> Structured Extended Features=3D0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID> XSAVE Features=3D0x1<XSAVEOPT> Now the newer machine: vegan# grep Features /var/run/dmesg.boot=20 Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG= E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=3D0x7ffafbff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,S= SSE3,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT= ,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND> AMD Features=3D0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=3D0x21<LAHF,ABM> Structured Extended Features=3D0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID> XSAVE Features=3D0x1<XSAVEOPT> Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG= E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=3D0x7ffafbff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,S= SSE3,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT= ,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND> AMD Features=3D0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=3D0x21<LAHF,ABM> Structured Extended Features=3D0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID> XSAVE Features=3D0x1<XSAVEOPT> This all Greek to me. Perhaps a diff will help: [benfell@vegan ~]% diff -u Features.home Features.vegan --- Features.home 2015-02-22 17:09:32.000000000 -0800 +++ Features.vegan 2015-02-22 17:09:01.000000000 -0800 @@ -1,15 +1,13 @@ -[benfell@home ~]% grep Features /var/run/dmesg.boot +vegan# grep Features /var/run/dmesg.boot=20 Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,P= GE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> - Features2=3D0x7fdafbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE= 3,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,AESNI,XSA= VE,OSXSAVE,AVX,F16C,RDRAND> + Features2=3D0x7ffafbff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSS= E3,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,A= ESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND> AMD Features=3D0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=3D0x21<LAHF,ABM> - Structured Extended -Features=3D0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID> + Structured Extended Features=3D0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID> XSAVE Features=3D0x1<XSAVEOPT> Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,P= GE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> - Features2=3D0x7fdafbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE= 3,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,AESNI,XSA= VE,OSXSAVE,AVX,F16C,RDRAND> + Features2=3D0x7ffafbff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSS= E3,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,A= ESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND> AMD Features=3D0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD Features2=3D0x21<LAHF,ABM> - Structured Extended -Features=3D0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID> + Structured Extended Features=3D0x27ab<FSGSBASE,TSCADJ,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID> XSAVE Features=3D0x1<XSAVEOPT> Thanks! --=20 David Benfell <benfell@parts-unknown.org> See https://parts-unknown.org/node/2 if you don't understand the attachment. --8GpibOaaTibBMecb Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJU6n47AAoJEBV64x4SNmArJZ0P/3BkuZStwzuZPBfZAOyUBYiu gEyhnDGnQNBfmmVwTlSox3CFUnB3nKY3j/f7sA6YXdLQDGDh+miNJ00DnO1PHOO+ pV4LlpAvWE6daXP5cV4AXQ56WSIrIvfFm8K+td+rqt830eekKB3uGZHlbfFblu8J kyQhbRAGrCeD8jVd7qXFbSHyxWwAfUxNQIZoCs1rv7YKPjZFlUnCPAAWWWBsIUEe DVJXV1HiHHCMbEJ3x+PdIfhYbqprOU5oEK7RoVVOJGEsitfLmPVt5Psgt6fSBVWk NdbzlwF0zkVTaRLZZkp2hHLdQkreg/VyC4zxYxtG2cV7RLsb6Qs0amGLFV8u1/Mu yVTuScCVJLNP7OU1yFO7MdzkuOAoBReFHlTZeGPMt1Jy2PThn9j1PYmj1zFgulnr TS690nb1C+6DnDtWTaOx17ypxn+5f+SsXk7wXqtxRxcJpb6TGTcXNHmtQMm5wwyA uFE9mm9dN67rtZpXD90ooFYPI9Blc4cuPWsfoTvD2QdzNbBT6dXhnpEdgRF/qfR7 Kp5lTJ5Ot0aSUp/7mSqhU5OLl7vM4kuaYC5VvqrBGUq99Vs1u4s3xxrxMqsz1aaF 4mZw0spldcMmCR9KFWd/EFa9u/hPcmzLLbmDqMm1CUcfiElbQHeSHAzE30PtIBl8 zhK2DA+70hS/KCWlu0x8 =rT+b -----END PGP SIGNATURE----- --8GpibOaaTibBMecb--
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