Date: Fri, 8 Apr 2016 09:22:37 +0100 (BST) From: <smokehydration@tutanota.com> To: <freebsd-current@freebsd.org> Cc: <sephe@freebsd.org> Subject: RE: Revision 297176 - hyperv/evttimer: Use an independent message slot so that it can work Message-ID: <KEosm96--3-0@tutanota.com>
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Hello I recently update one of my many vms from an older CURRENT revision r297196= =20 to r297659 and on reboot it just panics with the following: FreeBSD clang version 3.8.0 (tags/RELEHSE_380/final 262564) (based on LLVM= =20 3.8.0 ) VT(vga): text 80x25 Timecounter "Hyper-V" frequency 10000000 Hz quality 10000000 Kernel trap 9 with interrupts disabled Fatal trap 9: general protection fault while in kernel mode cpuid =3D 0: apic id =3D 00 instruction pointer=C2=A0=C2=A0=C2=A0=C2=A0 =3D 0x20:0xffffffff8100d6?9 stack pointer=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 = =3D 0x28:oxffffffff820d5c30 frame pointer=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 = =3D 0x28:oxffffffff820d5c40 code segment=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 =3D base 0x0, limit 0xfffff, type 0x1b =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =3D DPL 0, = pres 1, long 1, def32 0, gran 1 processor eflags=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =3D IOPL =3D 0 current process=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =3D 0 () [ thread pid 0 tid 0 ] stopped at=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 hv_get_timecount+0x9:=C2=A0=C2=A0 = rdmsr db) wh Tracing pid 0 tid 0 td 0xffffffff81d0eff0 hv_get_timecount() at hv_get_timecount+0x9/frame 0xffffffff820d5c40 tc_init() at tc_init+0x251/frame 0xffffffff820d5c90 mi_startup() at mi_startup+0x118/frame 0xffffffff820d5cb0 btext() at btext+ox2c=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =3D db> I changed hv_hv.c back to the previous revision (297176) and no panics unde= r=20 Xen VM. Thanks! p.s. not sure why Xen gets detected as HyperV
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