Bug 642284

Summary:	dev-libs/libpcre-8.41: jit USE flag on x32 causes SIGBUS when emerging (syntax-highlighting, kio)
Product:	Gentoo Linux	Reporter:	Dainius Masiliūnas <pastas4>
Component:	Current packages	Assignee:	Gentoo's Team for Core System packages <base-system>
Status:	UNCONFIRMED ---
Severity:	normal
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	371525, 393673
Attachments:	syntax-highlighting build.log

Description Dainius Masiliūnas 2017-12-26 09:53:07 UTC

When libpcre is installed with the jit USE flag (default), on the x32 ABI the pcregrep utility crashes with SIGBUS when trying to emerge a number of packages that use it. Two examples I've seen so far are kde-frameworks/syntax-highlighting and kde-frameworks/kio (this one is required by a lot of other packages, some of those might also show the same issue).

I haven't seen this problem before as I could emerge the packages fine back during the summer, so this may be a regression in the jit code (or perhaps it got enabled by default recently?).

I'll attach an example build log.

Comment 1 Dainius Masiliūnas 2017-12-27 14:50:10 UTC

Created attachment 511746 [details]
syntax-highlighting build.log