Date: Sun, 29 Jul 2018 11:22:49 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 230144] Linux emulator does not work on Ryzen / Epic processors Message-ID: <bug-230144-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230144 Bug ID: 230144 Summary: Linux emulator does not work on Ryzen / Epic processors Product: Base System Version: 11.2-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: pete@twisted.org.uk Trying to run any Linux binary on Ryzen or Epic coredumps. I trying to backtrace the core but the debugger does not seem to be able to get any information ut of the binary. This is completely AMD Zen specific - I can take the same disc and boot it = up with a Xeon processor and it works fine. I have also used the Linux emulato= r on older AMD processors fine (my desktop was a Phenom II until I upgraded it to the Ryzen) but I have to admit I haven't been able to try the latest kernel= on older AMD processors. Reproducing is trivial - enable Linux in rc.conf, install linux_base-c7 and= try and run /compat/linux/bin/bash. It will immediately coredump on a Zen machi= ne, but plugging the same disc into an Intel machine will run it fine. --=20 You are receiving this mail because: You are the assignee for the bug.=
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