Torvalds & GCC 4.9

drago01 drago01 at
Sun Jul 27 11:02:46 UTC 2014

On Sun, Jul 27, 2014 at 11:36 AM, Chuck Forsberg WA7KGX <caf at> wrote:
> On 07/27/2014 12:11 AM, Jakub Jelinek wrote:
>> On Sat, Jul 26, 2014 at 11:32:49PM -0700, Chuck Forsberg WA7KGX wrote:
>>> is reporting that Linus has found a code generation
>>> error in 4.9 and has switched back to 4.8.
>> The bug existed from 4.5.0 up, so switching back to 4.8 is a weird
>> solution.
>>> Since Fedora has been including 4.9 in F21 for some time,
>>> one would like to know which compiler is used for compiling F21.
>> This bug is fixed in gcc-4.9.1-2.fc{21,22} already, and given that it has
>> been reported only after a few years since the bug has been introduced, it
>> is not very likely to trigger on other code.
>>> Caould some of the strange problems I've seen with F21 be
>>> caused by GCC 2.9 code generation error(s)???
>> Have you filed bugs if you suspect gcc problems?
>>         Jakub
> I have not seen GCC related bugs in the software I wrote,
> but then my usage of C is not very subtle.
> I was wondering if some of the recent problems which come and go, such as
> installs with anything but Gnome failing to boot to a desktop.
> Saturday's rsync had this problem, Friday's was OK in this respect.

Well bugs happens in pretty much anything ... just blaming the
compiler is a bit premature.

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