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| author | kaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk> | 2006-03-15 10:32:34 +0100 |
|---|---|---|
| committer | kaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk> | 2006-03-15 10:32:34 +0100 |
| commit | 92d6391152473329e845917817240f1485cf0e84 (patch) | |
| tree | 42e2b843658a6c749352e3efd920b63f911859bf /xen/common/sched_sedf.c | |
| parent | badff410e406c0efaaac5d50cd6092e3768951f1 (diff) | |
| download | xen-92d6391152473329e845917817240f1485cf0e84.tar.gz xen-92d6391152473329e845917817240f1485cf0e84.tar.bz2 xen-92d6391152473329e845917817240f1485cf0e84.zip | |
Add extra tracing near a commonly-failing scheduler assertion.
Signed-off-by: Keir Fraser <keir@xensource.com>
Diffstat (limited to 'xen/common/sched_sedf.c')
| -rw-r--r-- | xen/common/sched_sedf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/xen/common/sched_sedf.c b/xen/common/sched_sedf.c index d4e8895514..87f9f6ab00 100644 --- a/xen/common/sched_sedf.c +++ b/xen/common/sched_sedf.c @@ -585,6 +585,10 @@ static void update_queues( curinf->deadl_abs += DIV_UP(now - curinf->deadl_abs, curinf->period) * curinf->period; + if (unlikely(curinf->deadl_abs < now)) + printk("Fatal scheduler error: %lld %lld %lld diff=%lld\n", + curinf->deadl_abs, now, curinf->period, + now - curinf->deadl_abs); ASSERT(curinf->deadl_abs >= now); /*give a fresh slice*/ curinf->cputime = 0; |