[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] NPTL/TLS problem in -unstable ?
On Mon, Jan 10, 2005 at 03:04:50PM -0500, Rik van Riel wrote: > >Since you mentioned this in another message yesterday, I > >tried booting xen-unstable with /lib/tls in place today > >and it worked. Do you have any local changes in your kernel > >or a different glibc? > > OK, vanilla linux-2.6.10 as compiled from the xen tree > seems to work, though the first "ldd" after an ldconfig > seems to segfault ;) I managed to reproduce this earlier this afternoon (FC3 userland seems to trigger it reliably, while debian userland doesn't) and it is now fixed in xen-2.0, xen-2.0-testing and xen-unstable. The problem was introduced during the upgrade to 2.6.10 where calls from entry.S to C functions got changed to be fastcall instead of asmlinkage. I missed changing one of the functions (the seg fixup callback one) and when the compiler turned the final printk in that function into a tail call, it would clobber the first register on the stack which then caused the instruction to be re-executed with a random %ebx. christian ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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