The patch titled powerpc: fix DEBUG_PREEMPT warning when warning has been added to the -mm tree. Its filename is powerpc-fix-debug_preempt-warning-when-warning.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: powerpc: fix DEBUG_PREEMPT warning when warning From: Hugh Dickins <hugh@xxxxxxxxxxx> The powerpc show_regs prints CPU using smp_processor_id: change that to raw_smp_processor_id, so that when it's showing a WARN_ON backtrace without preemption disabled, DEBUG_PREEMPT doesn't mess up that warning with its own. Signed-off-by: Hugh Dickins <hugh@xxxxxxxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/powerpc/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN arch/powerpc/kernel/process.c~powerpc-fix-debug_preempt-warning-when-warning arch/powerpc/kernel/process.c --- a/arch/powerpc/kernel/process.c~powerpc-fix-debug_preempt-warning-when-warning +++ a/arch/powerpc/kernel/process.c @@ -462,7 +462,7 @@ void show_regs(struct pt_regs * regs) current, task_pid_nr(current), current->comm, task_thread_info(current)); #ifdef CONFIG_SMP - printk(" CPU: %d", smp_processor_id()); + printk(" CPU: %d", raw_smp_processor_id()); #endif /* CONFIG_SMP */ for (i = 0; i < 32; i++) { _ Patches currently in -mm which might be from hugh@xxxxxxxxxxx are origin.patch git-unionfs.patch git-x86.patch percpu-fix-debug_preempt-per_cpu-checking.patch powerpc-fix-debug_preempt-warning-when-warning.patch r-o-bind-mounts-track-number-of-mount-writers.patch procfs-task-exe-symlink.patch procfs-task-exe-symlink-fix.patch prio_tree-debugging-patch.patch - To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html