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| author | Eric Dumazet <edumazet@google.com> | 2013-11-24 00:59:20 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-08 19:29:14 +0400 |
| commit | f2b44be96bc1ed055baa56b6474bb9369ac186bf (patch) | |
| tree | 9e059aa9406515f8ec487fe87943cfc1ab24c251 /.gitignore | |
| parent | 99834e4d7c5e441e268eb718e41d7e83343477fb (diff) | |
| download | linux-f2b44be96bc1ed055baa56b6474bb9369ac186bf.tar.xz | |
sch_tbf: handle too small burst
[ Upstream commit 4d0820cf6a55d72350cb2d24a4504f62fbde95d9 ]
If a too small burst is inadvertently set on TBF, we might trigger
a bug in tbf_segment(), as 'skb' instead of 'segs' was used in a
qdisc_reshape_fail() call.
tc qdisc add dev eth0 root handle 1: tbf latency 50ms burst 1KB rate
50mbit
Fix the bug, and add a warning, as such configuration is not
going to work anyway for non GSO packets.
(For some reason, one has to use a burst >= 1520 to get a working
configuration, even with old kernels. This is a probable iproute2/tc
bug)
Based on a report and initial patch from Yang Yingliang
Fixes: e43ac79a4bc6 ("sch_tbf: segment too big GSO packets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '.gitignore')
0 files changed, 0 insertions, 0 deletions