Date: Tue, 10 May 2016 15:14:13 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 209428] if_vtnet(4) panics when doing kldunload if_vtnet Message-ID: <bug-209428-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209428 Bug ID: 209428 Summary: if_vtnet(4) panics when doing kldunload if_vtnet Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: novel@FreeBSD.org When using if_vtnet(4) as a module and unloading it using "kldunload if_vtn= et" it immediately causes a panic: Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 00 fault virtual address =3D 0x80 fault code =3D supervisor read data, page not present instruction pointer =3D 0x20:0xffffffff80cff56d stack pointer =3D 0x28:0xfffffe0096eb28a0 frame pointer =3D 0x28:0xfffffe0096eb28d0 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 779 (kldunload) [ thread pid 779 tid 100058 ] Stopped at uma_zone_get_cur+0xd: movq 0x80(%r14),%rdi db> bt Tracing pid 779 tid 100058 td 0xfffff800064219a0 uma_zone_get_cur() at uma_zone_get_cur+0xd/frame 0xfffffe0096eb28d0 vtnet_modevent() at vtnet_modevent+0x51/frame 0xfffffe0096eb2900 module_unload() at module_unload+0x32/frame 0xfffffe0096eb2920 linker_file_unload() at linker_file_unload+0x24b/frame 0xfffffe0096eb2970 kern_kldunload() at kern_kldunload+0xbc/frame 0xfffffe0096eb29a0 amd64_syscall() at amd64_syscall+0x2db/frame 0xfffffe0096eb2ab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0096eb2ab0 --- syscall (444, FreeBSD ELF64, sys_kldunloadf), rip =3D 0x80086b15a, rsp = =3D 0x7fffffffe348, rbp =3D 0x7fffffffebb0 --- db> --=20 You are receiving this mail because: You are the assignee for the bug.=
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