Re: 2.6.33: ftrace triggers soft lockup

From: AmÃrico Wang
Date: Tue Mar 09 2010 - 00:06:34 EST


On Tue, Mar 9, 2010 at 10:51 AM, Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> On Tue, 2010-03-09 at 10:40 +0800, AmÃrico Wang wrote:
>
>> > I will try this now.
>> >
>>
>> Unfortunately, this doesn't help.
>>
>> What is worse, I got another soft lockup, although I already turned LOCKDEP off.
>
> Hmm, this really sounds like somethings badly broken.
>
> What version of GCC are you using?

# gcc -v
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-libgcj-multifile
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada
--enable-java-awt=gtk --disable-dssi --enable-plugin
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre
--with-cpu=generic --host=x86_64-redhat-linux
Thread model: posix
gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)
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