Included below is the information you requested. uname -a says:
Linux test-desktop 2.6.17-10-generic #2 SMP Tue Dec 5 22:28:26 UTC 2006
i686 GNU/Linux
Note that:
1) The bug can be worked around by specifying the "noreplacement" kernel option
2) The bug has also been backported to the Dapper SMP kernel, but without the
workaround
3) As I said, this is the patch to arch/i386/kernel/alternative.c which fixes
the problem:
void __init alternative_instructions(void)
{
+ unsigned long flags;
if (no_replacement) {
printk(KERN_INFO "(SMP-)alternatives turned off\n");
free_init_pages("SMP alternatives",
@@ -396,6 +397,8 @@ void __init alternative_instructions(voi
(unsigned long)__smp_alt_end);
return;
}
+
+ local_irq_save(flags);
apply_alternatives(__alt_instructions, __alt_instructions_end);
/* switch to patch-once-at-boottime-only mode and free the
@@ -433,4 +436,5 @@ void __init alternative_instructions(voi
alternatives_smp_switch(0);
}
#endif
-}
+ local_irq_restore(flags);
+}
** Attachment added: "dmesg.log"
http://librarian.launchpad.net/6491322/dmesg.log
--
Linux image contains buggy alternatives code
https://launchpad.net/bugs/83716
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