[squeak-dev] [Vm-dev] Next Release Candidate?
eliot.miranda at gmail.com
Sat Dec 11 20:02:23 UTC 2021
see commit 97b4903b4b88f22c1bd11760f107852c63f9db40
Author: Eliot Miranda <eliot.miranda at gmail.com>
Date: Sat Dec 11 11:58:58 2021 -0800
src/plugins/SHA2Plugin/SHA2Plugin.c as per CryptographyPlugins-eem.24
Fix crashes in primitiveSHA256ProcessBufferUpdatingHash when compiling
Clang on x86_64 due to SSE instructions which require 128-bit stack
I need to know about any other such crashes pronto.
On Fri, Dec 10, 2021 at 4:43 AM Levente Uzonyi <leves at caesar.elte.hu> wrote:
> Hi Marcel,
> The SHA2 plugin (primitiveSHA256ProcessBufferUpdatingHash) still
> crashes with that VM on 64-bit linux.
> The plugin code works with earlier versions, so it's either a VM
> change of the past 6-9 months, a code generator bug or a compiler bug IMO.
> To reproduce the crash, evaluate the following:
> Installer ss
> project: 'Registers';
> install: 'Registers-Core'.
> Installer ss
> project: 'Cryptography';
> addPackage: 'CryptographyHashing';
> addPackage: 'CryptographyHashingTests';
> (Smalltalk classNamed: #SHA256WithSHA2PluginTest) run: #testInputs
> Interestingly another test (SHA512WithSHA2PluginTest) using a very
> similar primitive but with DoubleWords works fine. So perhaps it's an
> alignment issue.
> Assert and debug VMs do not have that issue, so it's not that easy to
> debug it. What I found was that buffer's value at
> was not the expected pointer, so the subsequent copying into it resulted
> in segmentation fault.
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