Iago López Galeiras
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7541ad9c9c
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vendor: bump tcptracer-bpf
We found out we were losing kretprobes sometimes because maxactive was set too
low[1]. This problem was more apparent in our GCE test environment because
the kernel was configured with `CONFIG_PREEMPT` not set and we're running
single-core VMs (see https://github.com/weaveworks/tcptracer-bpf/issues/24 for
more details).
Unfortunately, we can't set the maxactive explicitly from userspace. Alban
submitted a kernel patch to allow this[2].
This bumps tcptracer-bpf to include a workaround[3] for this issue in the
guess-offsets phase.
[1]: https://github.com/weaveworks/tcptracer-bpf/issues/24
[2]: https://lkml.org/lkml/2017/3/28/629
[3]: https://github.com/weaveworks/tcptracer-bpf/pull/33
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2017-03-29 15:57:25 +02:00 |
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