Date: Mon, 11 Sep 2023 09:32:34 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 273715] dumpon: Kernel panic on boot when enabling dumpon over IP Message-ID: <bug-273715-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273715 Bug ID: 273715 Summary: dumpon: Kernel panic on boot when enabling dumpon over IP Product: Base System Version: 13.2-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: grembo@FreeBSD.org Basic setup: Host running bhyve vms. VMs use dumpon over IP to write crash dumps to the = VM host. This used to work ok in 13.1 (booting these machines using a 13.1 ker= nel still works). With 13.2, dumpon (ironically) causes a panic on boot. Configuration: ifconfig_vtnet0_name=3D"uplink" ifconfig_uplink=3D"inet 192.168.255.3/24" defaultrouter=3D"192.168.255.1" vlans_uplink=3D"vlanone vlantwo" create_args_vlanone=3D"vlan 1001" ifconfig_vlanone=3D"inet 10.1.1.1/24" create_args_vlantwo=3D"vlan 1002" ifconfig_vlantwo=3D"inet 10.1.2.1/24" dumpdev=3D"uplink" dumpon_flags=3D"-k /root/netdump_public.pem -i 0 -c 192.168.255.3 -s 192.168.255.1 -g 192.168.255.1" Panic: Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 00 fault virtual address =3D 0x500 fault code =3D supervisor read data, page not present instruction pointer =3D 0x20:0xffffffff80deea11 stack pointer =3D 0x28:0xfffffe00f7fda9a0 frame pointer =3D 0x28:0xfffffe00f7fda9d0 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 26 (dumpon) trap number =3D 12 panic: page fault cpuid =3D 0 time =3D 1694419470 KDB: stack backtrace: #0 0xffffffff80c53e45 at kdb_backtrace+0x65 #1 0xffffffff80c067c1 at vpanic+0x151 #2 0xffffffff80c06663 at panic+0x43 #3 0xffffffff810b1fa7 at trap_fatal+0x387 #4 0xffffffff810b1fff at trap_pfault+0x4f #5 0xffffffff81088ed8 at calltrap+0x8 #6 0xffffffff80def0c6 at netdump_ioctl+0x4c6 #7 0xffffffff80a9d736 at devfs_ioctl+0xc6 #8 0xffffffff80cf91d4 at vn_ioctl+0x1a4 #9 0xffffffff80a9ddee at devfs_ioctl_f+0x1e #10 0xffffffff80c748fd at kern_ioctl+0x26d #11 0xffffffff80c745e0 at sys_ioctl+0x100 #12 0xffffffff810b289c at amd64_syscall+0x10c #13 0xffffffff810897eb at fast_syscall_common+0xf8 Uptime: 1s When commenting out dumpon in /etc/rc.conf, the vm boots just fine. --=20 You are receiving this mail because: You are the assignee for the bug.=
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