Re: /usr/bin/m4: internal error detected

Andreas Schwab <[email protected]>
Newsgroups gmane.comp.lib.glibc.alpha,gmane.comp.gnu.m4.bugs,gmane.linux.debian.ports.superh,gmane.comp.emulators.qemu
Message-ID <[email protected]>
On Dez 01 2017, John Paul Adrian Glaubitz <[email protected]> wrote:

> This isn't a bug in m4 or anything architecture-specific, it's a regression
> that was introduced by an upstream change in glibc [1] and mainly affects
> qemu-user which we are using for m68k and sh4 [2].

It's a bug in qemu-linux-user, which ignores CLONE_VFORK, turning vfork
into fork.  This breaks the expected semantics of vfork (VM sharing and
blocking the child until exec).

Andreas.

-- 
Andreas Schwab, [email protected]
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