linux-kernel - x32 processes, with CONFIG_X86

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 25 Mar 2016 11:48:35 -0400
From:	Dave Jones <davej@...emonkey.org.uk>
To:	luto@...nel.org
Cc:	x86@...nel.org, Linux Kernel <linux-kernel@...r.kernel.org>
Subject: x32 processes, with CONFIG_X86_X32 not set

I had a trinity process get stuck last overnight.
The reason for it getting stuck is my bug (I think), but
there's an odd unrelated thing I noticed while debugging this..

$ strace -p 20966
strace: Process 20966 attached
strace: [ Process PID=20966 runs in x32 mode. ]

So I don't use that new-fangled x32 stuff.
I don't even have CONFIG_X86_X32 compiled in.

Is this strace getting confused, or did we somehow screw
up the syscall entry code ?

	Dave