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Bug#433629: marked as done (gcc-4.2: breaks linux kernel usbhid)



Your message dated Wed, 25 Jul 2007 12:00:16 +0200
with message-id <18087.7984.461987.116730@gargle.gargle.HOWL>
and subject line Bug#433629: gcc-4.2: breaks linux kernel usbhid
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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(administrator, Debian Bugs database)

--- Begin Message ---
Package: gcc-4.2
Version: 4.2-20070707-1
Severity: normal

On Monday ("Mon Jul 16 10:39:51 2007"), I compiled the linux kernel
version 2.6.22+git-e904e31ddef89e03f9f45f255a63803dbe708645
(that's a version from the wireless-dev tree on git.kernel.org) and
used it until today. According to the dpkg log, I upgraded my gcc
later yesterday:
2007-07-16 19:14:07 upgrade gcc-4.2 4.2-20070707-1 4.2-20070712-1

Today then, I wanted to compile a new kernel later git and USB HID
stopped working. Thinking that the problem lies in the kernel I
started to bisect only to find that the problem is not in the kernel,
in fact using the same sources I compiled yesterday morning don't
work with gcc-4.2-20070712-1.

Going back to gcc-4.2-20070707-1 however didn't make it work again
so I guess that the usbhid module wasn't rebuilt with the 070707
version because I hadn't completely rebuilt the kernel, the new
compile where it started failing was a complete rebuild. For now
I've gone back to 4.1.2-13 which works perfectly with the same
sources.
I'm filing the bug against 070707 but it is well possible that
earlier versions are affected as well.

Symptoms of usbhid not working are:
 * usbhid loaded before ohci-hcd: no input devices show up
 * usbhid loaded after ohci-hcd: system hangs when loading usbhid

I haven't been able to debug further as my powerbook only allows
for USB input devices.

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: powerpc (ppc)

Kernel: Linux 2.6.22-ga4a12090-dirty (PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages gcc-4.2 depends on:
ii  binutils              2.17.20070406cvs-2 The GNU assembler, linker and bina
ii  cpp-4.2               4.2-20070707-1     The GNU C preprocessor
ii  gcc-4.2-base          4.2-20070707-1     The GNU Compiler Collection (base 
ii  libc6                 2.6-2              GNU C Library: Shared libraries
ii  libgcc1               1:4.2-20070707-1   GCC support library
ii  libgomp1              4.2-20070707-1     GCC OpenMP (GOMP) support library

Versions of packages gcc-4.2 recommends:
ii  libc6-dev                     2.6-2      GNU C Library: Development Librari
pn  libmudflap0-4.2-dev           <none>     (no description available)

-- no debconf information


--- End Message ---
--- Begin Message ---
Version: 4.2.1-0

Johannes Berg writes:
> 
> > please recheck with gcc 4.2.1
> 
> Works fine. I also upgraded the kernel but in the changelog since my old
> kernel can't find any changes that were made for gcc so I take it that
> gcc did indeed have a bug that is now fixed.

thanks, closing the report.

--- End Message ---

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