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| author |   Stephen Hemminger <shemminger@vyatta.com> | 2008-09-08 13:44:40 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-09-08 13:46:54 -0700 |
| commit | 8d4698f7a54a492a1b96c505b30fe750ae3e61d5 (patch) | |
| tree | 4bec6c7dcf06bb5df9645d702d554a071007b83a /fs/jbd2/commit.c | |
| parent | netns : fix kernel panic in timewait socket destruction (diff) | |
| download | linux-dev-8d4698f7a54a492a1b96c505b30fe750ae3e61d5.tar.xz linux-dev-8d4698f7a54a492a1b96c505b30fe750ae3e61d5.zip | |
bridge: don't allow setting hello time to zero
Dushan Tcholich reports that on his system ksoftirqd can consume
between %6 to %10 of cpu time, and cause ~200 context switches per
second.
He then correlated this with a report by bdupree@techfinesse.com:
http://marc.info/?l=linux-kernel&m=119613299024398&w=2
and the culprit cause seems to be starting the bridge interface.
In particular, when starting the bridge interface, his scripts
are specifying a hello timer interval of "0".
The bridge hello time can't be safely set to values less than 1
second, otherwise it is possible to end up with a runaway timer.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions