Date: Sun, 3 Jun 2018 16:55:00 +0200 From: Michael Gmelin <freebsd@grem.de> To: Konstantin Belousov <kostikbel@gmail.com> Cc: Michael Gmelin <freebsd@grem.de>, "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>, Matthias Apitz <guru@unixarea.de>, jhb@freebsd.org Subject: Re: Fatal trap 12: page fault on Acer Chromebook 720 (peppy) Message-ID: <20180603165500.361ec894@bsd64.grem.de> In-Reply-To: <20180603132110.GP3789@kib.kiev.ua> References: <20180603144840.44bfea41@bsd64.grem.de> <20180603132110.GP3789@kib.kiev.ua>
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On Sun, 3 Jun 2018 16:21:10 +0300 Konstantin Belousov <kostikbel@gmail.com> wrote: > On Sun, Jun 03, 2018 at 02:48:40PM +0200, Michael Gmelin wrote: > > Hi, > > > > After upgrading CURRENT to r333992 (from something at least a year > > old, quite some changes in mp_machdep.c since), this machine crashes > > on boot: > > > > Copyright (c) 1992-2018 The FreeBSD Project. > > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, > > 1994 The Regents of the University of California. All rights > > reserved. FreeBSD is a registered trademark of The FreeBSD > > Foundation. FreeBSD 12.0-CURRENT #1 r333992: Tue May 22 00:31:04 > > CEST 2018 root@flimsy:/usr/obj/usr/src/amd64.amd64/sys/flimsy amd64 > > FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based > > on LLVM 6.0.0) WARNING: WITNESS option enabled, expect reduced > > performance. VT(vga): resolution 640x480 > > CPU: Intel(R) Celeron(R) 2955U @ 1.40GHz (1396.80-MHz K8-class CPU) > > Origin="GenuineIntel" Id=0x40651 Family=0x6 Model=0x45 > > Stepping=1 > > Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA, > > CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> > > Features2=0x4ddaebbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,SDBG,CX16, > > xTPR,PDCM,PCID,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,XSAVE,OSXSAVE,RDRAND> > > AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM> AMD > > Features2=0x21<LAHF,ABM> Structured Extended > > Features=0x2603<FSGSBASE,TSCADJ,ERMS,INVPCID,NFPUSG> XSAVE > > Features=0x1<XSAVEOPT> VT-x: (disabled in BIOS) > > PAT,HLT,MTF,PAUSE,EPT,UG,VPID TSC: P-state invariant, performance > > statistics real memory = 4301258752 (4102 MB) > > avail memory = 1907572736 (1819 MB) > > Event timer "LAPIC" quality 600 > > ACPI APIC Table: <CORE COREBOOT> > What does this mean ? Did you flashed coreboot ? This machine comes with it by default (my model was delivered with SeaBIOS 20131018_145217-build121-m2). So I didn't flash anything (didn't feel like bricking it). > > > kernel trap 12 with interrupts disabled > > > > Fatal trap 12: page fault while in kernel mode > > cpuid = 0; apic id = 00 > > fault virtual address = 0xfffff80001000000 > > fault code = supervisor write data, protection > > violation instruction pointer = 0x20:Oxffffffff8102955f > > stack pointer = 0x28:0xffffffff82a79be0 > > frame pointer = 0x28:0xffffffff82a79c10 > > code segment = base Ox0, limit Oxfffff, type Ox1b > > = DPL 0, pres 1, long 1, def32 0, gran 1 > > processor eflags = resume, IOPL = 0 > > current process = 0 () > > [ thread pid 0 tid 0 ] > > Stopped at native_start_all_aps+0x08f: movq > > %rax,(%rsi) > Look up the source line number for this address. > I guess that's sys/amd64/amd64/support.S line 854 (in rdmsr), called by native_start_all_aps. Any additional hints how I can track it down? Thanks, Michael > > db> > > > > Any key press in the debugger will reboot the machine. > > > > Booting with kern.smp.disabled=1 works. > > > > Any ideas? > > > > -m > > > > -- > > Michael Gmelin > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to > > "freebsd-current-unsubscribe@freebsd.org" > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to > "freebsd-current-unsubscribe@freebsd.org" -- Michael Gmelin
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