Bug 67508

Summary:	[aarch64] gccgo runtime crashes with CONFIG_ARM64_PGTABLE_LEVELS=4 (48bit VMA)
Product:	gcc	Reporter:	Michael Hudson-Doyle <michael.hudson>
Component:	go	Assignee:	Ian Lance Taylor <ian>
Status:	RESOLVED FIXED
Severity:	normal	CC:	doko, ramana
Priority:	P3
Version:	unknown
Target Milestone:	---
Host:		Target:	aarch64*
Build:		Known to work:
Known to fail:		Last reconfirmed:

Description Michael Hudson-Doyle 2015-09-08 22:37:18 UTC

As reported at https://bugs.launchpad.net/ubuntu/+source/gccgo-4.9/+bug/1472650, any gccgo-compiled program crashes on startup on an arm64 using 4 level page tables with an error "fatal error: runtime_lfstackpush: invalid pointer". There is a fix available at https://go-review.googlesource.com/#/c/13037/

Comment 1 Ian Lance Taylor 2015-11-01 20:55:30 UTC

The proposed fix was merged into mainline on September 23.  I assume that this problem is now fixed.