3fa39a35ed
I'm seeing crashes in ospf6_write on the `assert(node)`. The only sequence of events that I see that could possibly cause this to happen is this: a) Someone has scheduled a outgoing write to the ospf6->t_write and placed item(s) on the ospf6->oi_write_q b) A decision is made in ospf6_send_lsupdate() to send an immediate packet via a event_execute(..., ospf6_write,....). c) ospf6_write is called and the oi_write_q is cleaned out. d) the t_write event is now popped and the oi_write_q is empty and FRR asserts on the `assert(node)` <crash> When event_execute is called for ospf6_write, just cancel the t_write event. If ospf6_write has more data to send at the end of the function it will reschedule itself. I've only seen this crash one time and am unable to reliably reproduce this at all. But this is the only mechanism that I can see that could make this happen, given how little the oi_write_q is actually touched in code. Signed-off-by: Donald Sharp <sharpd@nvidia.com> |
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FRRouting
FRR is free software that implements and manages various IPv4 and IPv6 routing protocols. It runs on nearly all distributions of Linux and BSD and supports all modern CPU architectures.
FRR currently supports the following protocols:
- BGP
- OSPFv2
- OSPFv3
- RIPv1
- RIPv2
- RIPng
- IS-IS
- PIM-SM/MSDP
- LDP
- BFD
- Babel
- PBR
- OpenFabric
- VRRP
- EIGRP (alpha)
- NHRP (alpha)
Installation & Use
For source tarballs, see the releases page.
For Debian and its derivatives, use the APT repository at https://deb.frrouting.org/.
Instructions on building and installing from source for supported platforms may be found in the developer docs.
Once installed, please refer to the user guide for instructions on use.
Community
The FRRouting email list server is located here and offers the following public lists:
| Topic | List |
|---|---|
| Development | dev@lists.frrouting.org |
| Users & Operators | frog@lists.frrouting.org |
| Announcements | announce@lists.frrouting.org |
For chat, we currently use Slack. You can join by clicking the "Slack" link under the Participate section of our website.
Contributing
FRR maintains developer's documentation which contains the project workflow and expectations for contributors. Some technical documentation on project internals is also available.
We welcome and appreciate all contributions, no matter how small!
Security
To report security issues, please use our security mailing list:
security [at] lists.frrouting.org