Hello Maria, I thought that I had the same bug, but it seems that it’s a different one as I applied the patch but I still got a segfault at startup.
[342115.227497] bird[19396]: segfault at 8 ip 00005642c37062db sp 00007fc784295ca0 error 4 in bird[5642c366e000+f0000] [342115.227524] Code: 39 10 0f 85 e3 8c f6 ff 48 8b 90 b0 01 00 00 8b 8a 10 01 00 00 89 4c 24 24 85 c9 0f 84 d6 00 00 00 4d 85 ff 0f 84 e0 00 00 00 <41> 0f b6 44 24 08 89 c2 83 e2 01 4d 85 ed 75 15 83 c8 01 41 88 44 I can generate a coredump and share my configuration if needed. Alarig On Thu 19 Dec 2024 16:14:18 GMT, Radu Anghel via Bird-users wrote: > Hi Maria, > > I tried the patch and I can confirm that it is now safe to kill and > revive the bird :) > > Thank you! > > Best, > > Radu > > > On 19.12.2024 13:38, Maria Matejka wrote: > > Hello Radu, > > > > sorry, this was a stupid omission of a null check. Fixed in > > b6caccfd45fb639b6dd3a8d140d3c5ba4cc79311 <https://gitlab.nic.cz/labs/ > > bird/-/tree/b6caccfd45fb639b6dd3a8d140d3c5ba4cc79311>. Could you please > > check that it works on your side now? > > > > Thanks, > > Maria > > > > On Wed, Dec 18, 2024 at 02:55:19PM +0100, Maria Matejka via Bird-users > > wrote: > > > > We apparently missed this case in our test scenarios, so we’ll add > > one and check if it reproduces. We’ll ask for more info if we need it. > > > > Congratulations to the first BIRD 3 bugreport and thanks for it! > > > > On 18 December 2024 14:27:44 CET, Radu Anghel via Bird-users bird- > > us...@network.cz <mailto:bird-users@network.cz> wrote: > > > > Using a slightly modified version of the config from the 2.15.1 > > (just some {} inside case structures), but probably unrelated. > > > > If bird gets killed/not shut down properly and routes remain in > > the kernel then bird 3.0.0 is unable to restart and just > > segfaults when trying to refresh kernel routes. > > > > I can reproduce it by just kill -9 bird && restarting bird. > > > > daemon.debug bird: KERNEL6.ipv6: route refresh begin: rr 1 set 1 > > valid 0 pruning 0 pruned 0 > > > > kern.info kernel: [75645.964935] bird[4162]: segfault at 0 ip > > 000000000045d47b sp 00007ffcb9f9f2c0 error 4 in > > bird[403000+a8000] likely on CPU 1 (core 0, socket 1) > > > > kern.info kernel: [75645.970115] Code: 5d 41 5c 41 5d 41 5e 41 > > 5f c3 55 53 48 89 fb 48 83 ec 38 80 bb 79 02 00 00 04 48 8b 7f > > 30 75 46 48 89 d5 31 d2 e8 63 a4 ff ff <83> 38 00 49 89 c0 75 07 > > 31 c0 e9 9d 00 00 00 48 8b 40 10 48 8d 7b > > > > The kernel protocol config is: > > > > |protocol kernel KERNEL6 { debug { events, states }; scan time > > 3600; merge paths on; metric 0; ipv6 { import filter KERNEL_IN; > > export filter KERNEL_OUT; }; }| > > > > – > > Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o. > > >
