Date: Sun, 17 Oct 2021 22:43:46 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 259239] Kernel panic when using igmp forwarding (via igmpproxy) Message-ID: <bug-259239-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D259239 Bug ID: 259239 Summary: Kernel panic when using igmp forwarding (via igmpproxy) Product: Base System Version: 13.0-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: blubblub@mail.ru Created attachment 228792 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D228792&action= =3Dedit Backtrace When using the igmpproxy to forward igmp traffic to another host and upon actually trying to use that the following panic occurs. panic: Assertion in_epoch(net_epoch_preempt) failed at /usr/src/sys/netinet/ip_output.c:343 cpuid =3D 1 time =3D 1634507262 __HardenedBSD_version =3D 1300061 __FreeBSD_version =3D 1300515 version =3D FreeBSD 13.0-STABLE-HBSD #0 : Fri Oct 1 15:49:44 UTC 2021 root@ci-12.md.hardenedbsd.lan:/usr/obj/usr/src/amd64.amd64/sys/HARDENED= BSD KDB: stack backtrace: #0 0xffffffff80c6ecbb at kdb_backtrace+0x6b #1 0xffffffff80c24e7c at vpanic+0x18c #2 0xffffffff80c24c43 at panic+0x43 #3 0xffffffff80dd7a8e at ip_output+0x16ee #4 0xffffffff821242b0 at phyint_send+0x100 #5 0xffffffff8212352e at ip_mdq+0x25e #6 0xffffffff8212199a at X_ip_mrouter_set+0x9ba #7 0xffffffff80ddba6e at rip_ctloutput+0x29e #8 0xffffffff80cc4466 at sosetopt+0xe6 #9 0xffffffff80cc9a9d at kern_setsockopt+0xad #10 0xffffffff80cc99e4 at sys_setsockopt+0x24 #11 0xffffffff810cf83a at amd64_syscall+0x13a #12 0xffffffff810a11fb at fast_syscall_common+0xf8 Uptime: 4m12s PC Engines apu3 coreboot build 20193012 BIOS version v4.11.0.2 4080 MB ECC DRAM This is reproducible on every try. The same thing worked with 12 (including= the same igmpproxy version) without any issues. Steps to reproduce (these assume some external igmp source): 1. kldload ip_mroute.ko 2. service igmpproxy onestart 3. (On another machine) Use VLC to open an igmp network stream 4. Panic Note: This happens on HardenedBSD 13, however none of the code locations indicated by the trace seem to be changed from the default. I'd also be hap= py to test patches. --=20 You are receiving this mail because: You are the assignee for the bug.=
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