Re: Bug: swsusp in 2.5.42: "Scheduling while atomic"

From: Pavel Machek (pavel@ucw.cz)
Date: Wed Oct 23 2002 - 04:05:03 EST


Hi!

> |[1.] One line summary of the problem:
> |
> |Scheduling while atomic debug message during swsusp
> |
> |[2.] Full description of the problem/report:
> |
> |While swsusp'ing to disk, vast quantities of error messages are echoed to the
> |console, along the lines of the following pulled from /var/log/messages:
>
> This Problem is net lay resume recall problem. Try this patch, From
> |my test it can works in net card device, but it can not work in
> |sound card device.

With this and CONFIG_PREEMPT on, do you see any "scheduling while
atomic" messages? I do not think this can fix them completely...

                                                                Pavel

> -------------------------
> --- linus-2.5/kernel/suspend.c Fri Oct 18 09:22:36 2002
> +++ linus-2.5-suspend/kernel/suspend.c Thu Oct 17 20:42:08 2002
> @@ -627,7 +627,7 @@
> /* Make disk drivers accept operations, again */
> static void drivers_unsuspend(void)
> {
> - device_resume(RESUME_RESTORE_STATE);
> + /* device_resume(RESUME_RESTORE_STATE); */
> device_resume(RESUME_ENABLE);
> }
>
> @@ -655,7 +655,7 @@
> static void drivers_resume(int flags)
> {
> if (flags & RESUME_PHASE1) {
> - device_resume(RESUME_RESTORE_STATE);
> + /* device_resume(RESUME_RESTORE_STATE); */
> device_resume(RESUME_ENABLE);
> }
> if (flags & RESUME_PHASE2) {
>
>

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