On Wed, 2018-09-05 at 06:57 -0500, Adam Ford wrote:
> On Wed, Sep 5, 2018 at 3:46 AM Alex Kiernan <alex.kier...@gmail.com> wrote:
> >
> > On Tue, Sep 4, 2018 at 3:54 PM Andy Shevchenko
> > <andy.shevche...@gmail.com> wrote:
> > >
> > > On Tue, Sep 4, 2018 at 5:50 PM Andy Shevchenko
> > > <andy.shevche...@gmail.com> wrote:
> > > >
> > > > On Tue, Sep 4, 2018 at 5:00 PM Tom Rini <tr...@konsulko.com> wrote:
> > > > >
> > > > > On Tue, Sep 04, 2018 at 03:42:05PM +0300, Andy Shevchenko wrote:
> > > > >
> > > > > > ---------- Forwarded message ---------
> > > > > > From: Andy Shevchenko <andy.shevche...@gmail.com>
> > > > > > Date: Tue, Sep 4, 2018 at 3:40 PM
> > > > > > Subject: Parallel build is broken
> > > > > > To: Tom Rini <tr...@konsulko.com>
> > > > > > Cc: Bin Meng <bmeng...@gmail.com>, Simon Glass <s...@chromium.org>
> > > > > >
> > > > > >
> > > > > > U-Boot can't be build with make -j16.
> > > > > >
> > > > > > Second pass passes fine.
> > > > > >
> > > > > > Didn't investigate myself and probably will not have time (near to
> > > > > > vacation time for me).
> > > > > > So, please, fix it before release.
> > > > > >
> > > > > > sh: echo: I/O error
> > > > > > make[1]: *** [scripts/Makefile.build:278: common/malloc_simple.o]
> > > > > > Error 1
>
> I am no expert, but I/O error to me indicates a hardware problem on
> the build machine and not necessarily a software issue.
I doubt that is the issue. While EIO can be returned in response to a
hardware failure, it would be very random and most likely affect
something - the linker, a compiler - that process a lot of files or
data, not an echo command.
> > I've seen this problem - building inside a VMware VM. I've always
> > found that logging out and back in appears to fix it, so possibly
> > something related to the session... I've similarly failed to figure
> > out what the problem is as it comes and goes.
This is likely on track to the real problem. What happened is
something echo did returned EIO as an errno. That failing syscall was
probably a write(3), since echo doesn't do a whole lot else! And why
can write(3) return EIO, besides a hardware error?
EIO The process is a member of a background process group
attempting to write to its controlling terminal, TOSTOP
is set, the calling thread is not blocking SIGTTOU, the
process is not ignoring SIGTTOU, and the process group of
the process is orphaned. This error may also be returned
under implementation-defined conditions.
I think there's a $(shell echo something &) or something like that
somewhere.
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