[Xen-bugs] [Bug 858] gcc 4.2 compiled Xen freezes domU forever

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=858


ccoffing@xxxxxxxxxx changed:

           What    |Removed                     |Added
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          Component|Hypervisor                  |Tools




------- Comment #1 from ccoffing@xxxxxxxxxx  2007-07-06 12:10 -------
I can reproduce this.  It seems to be a miscompilation of libxenstore.so when
optimizations are -O2 on gcc 4.2.x.

I'm building xen-3.1.0 on openSUSE 10.3 alpha5+ (which just got updated to gcc
4.2.1)

It seems that libxenstore.so.3.0.0 is getting miscompiled.  If I build all of
xen and tools with gcc 4.2.1, but back-rev libxenstore.so.3.0.0 to a version
built with gcc 4.1.3, it works.  Or, if I build libxenstore.so with "-O" rather
than the default of "-O2", it also works.

Seems that qemu-dm is blocking on some xenstore call.

Will post more when I learn more....


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