Hi Jason, Dmitry,
On Tue, 23 Mar 2010 15:04:43 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> After merging the kgdb tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>
> kernel/debug/kdb/kdb_main.c: In function 'kdb_sr':
> kernel/debug/kdb/kdb_main.c:1822: error: '__sysrq_enabled' undeclared (first use in this function)
>
> Caused by commit ab28988df9667f8dd70c7434c8ca463beb00b300 ("kdb: core for
> kgdb back end (1 of 2)") from the kgdb tree interacting with commit
> edc6e384f9d96e54a6d03068d3b03fa5b56b6449 ("") fromInput: implement SysRq
> as a separate input handler the input tree.
I got this again today (I stopped reverting the input tree commits that I
was reverting for another build problem). The patch below still seems to
work OK.
> From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> Date: Tue, 23 Mar 2010 14:45:22 +1100
> Subject: [PATCH] kgdb: update for sysrq handling change
>
> Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> ---
> kernel/debug/kdb/kdb_main.c | 6 ++----
> 1 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
> index f1f9309..bad8e63 100644
> --- a/kernel/debug/kdb/kdb_main.c
> +++ b/kernel/debug/kdb/kdb_main.c
> @@ -1819,10 +1819,8 @@ static int kdb_sr(int argc, const char **argv)
> {
> if (argc != 1)
> return KDB_ARGCOUNT;
> - if (!__sysrq_enabled) {
> - kdb_printf("Auto activating sysrq\n");
> - __sysrq_enabled = 1;
> - }
> +
> + sysrq_toggle_support(1);
>
> kdb_trap_printk++;
> handle_sysrq(*argv[1], NULL);
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
http://www.canb.auug.org.au/~sfr/
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