On Wed, 2007-10-24 at 17:55 +0200, Ingo Molnar wrote: > * Romano Giannetti <[EMAIL PROTECTED]> wrote: > > > Done. The results are at: > > > > http://www.dea.icai.upcomillas.es/romano/linux/info/2624rc1_2/ > > > > in the syslog-after-failed-suspend.txt file. After the failed suspend > > (at line 15766) there where the bunch of things in D-state. I have > > left the file intact. > > > > At line 17646 there is: > > > > WARNING: at kernel/lockdep.c:2033 trace_hardirqs_on() > > hm, this lockdep warning caused lockdep to turn itself off - hence we > wont get to the really interesting warnings. We'll try to come up with a > solution for this.
Does this help?
---
Subject: lockdep: invalid irq usage
this function can be called from hardirq context.
Signed-off-by: Peter Zijlstra <[EMAIL PROTECTED]>
---
Index: linux-2.6-2/kernel/sched_debug.c
===================================================================
--- linux-2.6-2.orig/kernel/sched_debug.c
+++ linux-2.6-2/kernel/sched_debug.c
@@ -80,6 +80,7 @@ print_task(struct seq_file *m, struct rq
static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
{
struct task_struct *g, *p;
+ unsigned long flags;
SEQ_printf(m,
"\nrunnable tasks:\n"
@@ -88,7 +89,7 @@ static void print_rq(struct seq_file *m,
"------------------------------------------------------"
"----------------------------------------------------\n");
- read_lock_irq(&tasklist_lock);
+ read_lock_irqsave(&tasklist_lock, flags);
do_each_thread(g, p) {
if (!p->se.on_rq || task_cpu(p) != rq_cpu)
@@ -97,7 +98,7 @@ static void print_rq(struct seq_file *m,
print_task(m, rq, p);
} while_each_thread(g, p);
- read_unlock_irq(&tasklist_lock);
+ read_unlock_irqrestore(&tasklist_lock, flags);
}
void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
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