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SubjectRe: Shutdown and Reboot Regression 2.6.25-rc[78]
Date
On Monday 14 April 2008 17:09:41 Linus Torvalds wrote:
> On Mon, 14 Apr 2008, Linus Torvalds wrote:
> > Since you cannot see this on -rc9, can you go back to -rc8 and test this
> > patch [...]
>
> Oh, maybe I should actually include the patch too ;)
>
> Linus
> ---
> kernel/printk.c | 16 ++++++++++++++--
> 1 files changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/printk.c b/kernel/printk.c
> index c46a20a..4476879 100644
> --- a/kernel/printk.c
> +++ b/kernel/printk.c
> @@ -643,8 +643,20 @@ static int
> acquire_console_semaphore_for_printk(unsigned int cpu) {
> int retval = 0;
>
> - if (can_use_console(cpu))
> - retval = !try_acquire_console_sem();
> + if (!try_acquire_console_sem()) {
> + retval = 1;
> +
> + /*
> + * If we can't use the console, we need to release
> + * the console semaphore by hand to avoid flushing
> + * the buffer
> + */
> + if (!can_use_console(cpu)) {
> + console_locked = 0;
> + up(&console_sem);
> + retval = 0;
> + }
> + }
> printk_cpu = UINT_MAX;
> spin_unlock(&logbuf_lock);
> return retval;
> --

Sorry for the late response, we have a electric situation in the country, the
patch fixes the problem for me (tested on rc8).

Thanx


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