* Re: [Xen-changelog] [xen-unstable] Add RCU support to Xen.
[not found] <200701272100.l0RL0V30031431@xenbits2.xensource.com>
@ 2007-02-07 18:57 ` Hollis Blanchard
0 siblings, 0 replies; only message in thread
From: Hollis Blanchard @ 2007-02-07 18:57 UTC (permalink / raw)
To: Jose Renato Santos; +Cc: xen-ia64-devel, xen-devel, xen-ppc-devel
On Sat, 2007-01-27 at 13:00 -0800, Xen patchbot-unstable wrote:
> # HG changeset patch
> # User kaf24@localhost.localdomain
> # Date 1169836476 0
> # Node ID 32fd32bbf78d094e96027e3cea05fcbd92fee7a5
> # Parent 19a600376688577f0692eac022f05bc6df30ce93
> Add RCU support to Xen.
...
> @@ -658,6 +659,8 @@ void __init __start_xen(multiboot_info_t
>
> trap_init();
>
> + rcu_init();
> +
> timer_init();
>
> early_time_init();
This patch only added the rcu_init() call for x86. When the call is
omitted (on ia64 and powerpc), do_softirq() crashes trying to call a
null function pointer.
In cases like this where you *know* you're going to break the non-x86
architectures, please email xen-ppc-devel and xen-ia64-devel to let us
know what we'll need to do in the future, rather than force us to
reverse-engineer the crash.
Thanks!
--
Hollis Blanchard
IBM Linux Technology Center
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