Synopsis: system used as router panics maybe once a month
Category: system
Environment:
System : OpenBSD 7.4
Details : OpenBSD 7.4 (GENERIC.MP) #0: Sun Oct 22 12:13:42
MDT 2023
r...@syspatch-74-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/G
On 2023-12-05 20:00, Alexander Bluhm wrote:
*cpu0: receive 1: so 0xfd80259ea760, so_type 3, sb_cc 40
When the multicast routing daemon reads from raw socket, the kernel
crashes. Kernel has no data in the queue, but counter says there
should be 40 bytes. So it panics.
What kind of multicas
On 2023-12-05 20:00, Alexander Bluhm wrote:
netstat -na and netstat -g output would be useful. fstat -p helps to see for which sockets recvfrom(2) may be called.
Sorry, forgot about these
Active Internet connections (including servers)
Proto Recv-Q Send-Q Local Address Foreign Ad
On 2023-12-05 20:40, Alexander Bluhm wrote:
Found a race when we insert the IGMP packet into the socket buffer.
Unicast takes a mutex, but multicast code does not.
Other than that, I suspect the issue was introduced in 7.3 because
(iirc) I never ran into that issue before 7.3.
The parallel rece
On 2023-12-06 10:32, Alexander Bluhm wrote:
Jo Geraerts: Please test anyway so we know whether it fixes your bug.
bluhm
Your original patch is already applied and compiled, will apply the ipv6
this evening
as well and then report back after a month or so.
Kr,
Hello
On 2023-12-06 10:32, Alexander Bluhm wrote:
Jo Geraerts: Please test anyway so we know whether it fixes your bug.
The issue did not occur anymore. Thanks.
Kr,
Jo
