Bug #77284 [Ver]: base64

From: Date: Fri, 14 Dec 2018 14:28:24 +0000
Subject: Bug #77284 [Ver]: base64
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=77284&edit=1 ID: 77284 Updated by: cmb@php.net Reported by: anubas at hotmail dot com Summary: base64 Status: Verified Type: Bug Package: *URL Functions Operating System: FreeBSD 11.2-RELEASE-p5 PHP Version: 7.3.0 Assigned To: laruence Block user comment: N Private report: N New Comment: Might be relevant: $ cc -v FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based on LLVM 6.0.0) Previous Comments: ------------------------------------------------------------------------ [2018-12-14 13:00:24] cmb@php.net I can reproduce this issue on an AMD 64 supporting SSSE3, but not AVX2, running a Vagrant bento/freebsd-11.2[1]. resolve_base64_encode() returns php_base64_encode_ssse3()[2], but setting a breakpoint for this function is somehow ignored. [1] <https://app.vagrantup.com/bento/boxes/freebsd-11.2> [2] <https://github.com/php/php-src/blob/php-7.3.0/ext/standard/base64.c#L431> ------------------------------------------------------------------------ [2018-12-12 09:52:05] sjon at hortensius dot net This can be reproduced pretty quickly in a qemu-vm - I downloaded http://ftp.nl.freebsd.org/releases/VM-IMAGES/11.2-RELEASE/amd64/Latest/FreeBSD-11.2-RELEASE-amd64.qcow2.xz, uncompressed and logged in with root and ran: # portsnap fetch extract && cd /usr/ports/lang/php73 && make install (select debug build, accept defaults for the rest This will get you a debug php73 build which shows the same behavior ------------------------------------------------------------------------ [2018-12-11 22:12:28] nikic@php.net Also bug #77279 looks very related. In both cases we have a SIMD optimized function with FreeBSD as the operating system. Likely the same root cause. ------------------------------------------------------------------------ [2018-12-11 22:11:21] nikic@php.net Thanks, that should put you on the SSSE3 implementation. I just tried to force it locally, and it's working fine for me. Not sure what could be the issue here, maybe laruence has an idea? ------------------------------------------------------------------------ [2018-12-11 21:53:41] anubas at hotmail dot com I pulled the following out of the system dmesg output: CPU: Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz (2600.00-MHz K8-class CPU) Origin="GenuineIntel" Id=0x306e4 Family=0x6 Model=0x3e Stepping=4 Features=0xfa3fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,DTS,MMX,FXSR,SSE,SSE2,SS> Features2=0xffba2203<SSE3,PCLMULQDQ,SSSE3,CX16,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND,HV> AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM> AMD Features2=0x1<LAHF> Structured Extended Features=0x283<FSGSBASE,TSCADJ,SMEP,ERMS> TSC: P-state invariant ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=77284 -- Edit this bug report at https://bugs.php.net/bug.php?id=77284&edit=1

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