From: Peter Wu <peter@lekensteyn.nl>
To: Vince Weaver <vincent.weaver@maine.edu>
Cc: Michal Marek <mmarek@suse.com>, Al Viro <viro@zeniv.linux.org.uk>,
Oliver Hartkopp <socketcan@hartkopp.net>,
linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org,
Nicholas Piggin <npiggin@gmail.com>
Subject: Re: 'kbuild' merge before 4.9-rc1 breaks build and boot
Date: Mon, 7 Nov 2016 22:39:07 +0100 [thread overview]
Message-ID: <20161107213907.GB18092@al> (raw)
In-Reply-To: <alpine.DEB.2.20.1611071408040.24418@macbook-air>
On Mon, Nov 07, 2016 at 02:10:12PM -0500, Vince Weaver wrote:
> On Thu, 27 Oct 2016, Peter Wu wrote:
>
> > I can confirm Olivers issue, the current mainline kernel fails to boot
> > on kernels with CONFIG_MODVERSIONS=y. Bisection points to:
> >
> > commit 784d5699eddc55878627da20d3fe0c8542e2f1a2
> > Author: Al Viro <viro@zeniv.linux.org.uk>
> > Date: Mon Jan 11 11:04:34 2016 -0500
> > > WARNING: "memset" [sound/usb/snd-usbmidi-lib.ko] has no CRC!
> > > WARNING: "__fentry__" [sound/usb/snd-usbmidi-lib.ko] has no CRC!
> > > WARNING: "memcpy" [sound/usb/snd-usbmidi-lib.ko] has no CRC!
> > > WARNING: "__sw_hweight32" [sound/usb/snd-usbmidi-lib.ko] has no CRC!
>
> Has any progress been made with this problem?
>
> I'm also encountering it on my debian-unstable box on any kernel more
> recent than 4.9-rc1 (up to and including 4.9-rc4). I am glad someone
> managed to isolate it as I was unable to get a clean bisect.
>
> Vince
The original kbuild issue went in via
merge commit 84d69848c97faab0c25aa2667b273404d2e2a64a which notes:
- EXPORT_SYMBOL for asm source by Al Viro.
This does bring a regression, because genksyms no longer generates
checksums for these symbols (CONFIG_MODVERSIONS). Nick Piggin is
working on a patch to fix this.
Plus, we are talking about functions like strcpy(), which rarely
change prototypes.
Adding Nicholas in the cc, hopefully he can give a status update.
Kind regards,
Peter
next prev parent reply other threads:[~2016-11-07 21:39 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-21 16:23 'kbuild' merge before 4.9-rc1 breaks build and boot Oliver Hartkopp
2016-10-24 5:21 ` Oliver Hartkopp
2016-10-27 15:42 ` Peter Wu
2016-11-07 19:10 ` Vince Weaver
2016-11-07 21:39 ` Peter Wu [this message]
2016-11-08 1:33 ` Nicholas Piggin
2016-11-20 18:26 ` Peter Wu
2016-11-21 5:49 ` Nicholas Piggin
2016-11-21 6:39 ` [PATCH resend] kbuild: provide include/asm/asm-prototypes.h for x86 Adam Borowski
2016-11-21 7:27 ` Nicholas Piggin
2016-11-21 8:00 ` Peter Wu
2016-11-21 14:52 ` [PATCH reworded] x86/kbuild: enable modversions for symbols exported from asm Adam Borowski
2016-11-21 15:04 ` Peter Wu
2016-11-21 15:04 ` Peter Wu
2016-11-21 15:04 ` Peter Wu
2016-11-21 16:49 ` Oliver Hartkopp
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