Date: Fri, 24 Jul 2020 12:28:37 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 248243] FreeBsd crash when switching interface off and on again in cohesion with multicast Message-ID: <bug-248243-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248243 Bug ID: 248243 Summary: FreeBsd crash when switching interface off and on again in cohesion with multicast Product: Base System Version: 12.1-STABLE Hardware: amd64 OS: Any Status: New Keywords: IntelNetworking, iflib, needs-patch Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: l.m.v.breda@xs4all.nl Flags: maintainer-feedback+ Hello, I try to get PIMD running on latest pfSense release. One of the two problem= s I am facing is that FreeBsd as crashing as soon as I switch off and on again = one of the interfaces, especially the interface being used as PIMD register_vif. Hereby the relevant lines from "the core dump" curthread =3D 0xfffff8000439f000: pid 12 tid 100040 "swi1: netisr 2" Tracing pid 12 tid 100040 td 0xfffff8000439f000 kdb_enter() at kdb_enter+0x37/frame 0xfffffe00004de4b0 vpanic() at vpanic+0x197/frame 0xfffffe00004de500 panic() at panic+0x43/frame 0xfffffe00004de560 trap_fatal() at trap_fatal+0x391/frame 0xfffffe00004de5c0 trap_pfault() at trap_pfault+0x4f/frame 0xfffffe00004de610 trap() at trap+0x286/frame 0xfffffe00004de720 calltrap() at calltrap+0x8/frame 0xfffffe00004de720 ***--- trap 0xc, rip =3D 0xffffffff80e934f5, rsp =3D 0xfffffe00004de7f0, rb= p =3D=20 0xfffffe00004de7f0 ---*** if_inc_counter() at if_inc_counter+0x15/frame 0xfffffe00004de7f0 if_simloop() at if_simloop+0xd1/frame 0xfffffe00004de830 ***pim_input() at pim_input+0x409/frame 0xfffffe00004de890*** encap_input() at encap_input+0xd1/frame 0xfffffe00004de900 encap4_input() at encap4_input+0x28/frame 0xfffffe00004de930 ip_input() at ip_input+0x168/frame 0xfffffe00004de9e0 swi_net() at swi_net+0x12b/frame 0xfffffe00004dea50 ithread_loop() at ithread_loop+0x23c/frame 0xfffffe00004deab0 fork_exit() at fork_exit+0x7e/frame 0xfffffe00004deaf0 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00004deaf0=20 IMHO the problem is like this: - pim is asking som info from underlying core - that is translated into a trap - the trap is not handled correctly and/or parameters are not correct - the trap is handeld by thread 12 "swi1: netisr 2" - which lead to a fatal crash Louis PS related but another problem #248103 --=20 You are receiving this mail because: You are the assignee for the bug.=
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