Date: Tue, 14 Oct 2014 18:16:44 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Kevin Oberman" <rkoberman@gmail.com>, "FreeBSD-STABLE Mailing List" <freebsd-stable@freebsd.org> Subject: Re: System hang on shutdown when running freebsd-update Message-ID: <9950D9D780BD4975ACEF9FA5D0F71CCC@multiplay.co.uk> References: <CAN6yY1tnjvW72Yn=o9vgiS9%2B7Asy2GR7758LN8jfzTuQ8fWu=Q@mail.gmail.com>
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----- Original Message -----
From: "Kevin Oberman" <rkoberman@gmail.com>
To: "FreeBSD-STABLE Mailing List" <freebsd-stable@freebsd.org>
Sent: Tuesday, October 14, 2014 6:09 PM
Subject: System hang on shutdown when running freebsd-update
>I thought that this was just a fluke, but it has now happened three times,
> so I guess it's now out of the "fluke" class.
>
> I have upgraded several times recently to each 10.1 BETA and RC. After the
> first install pass t install the kernel and modules, the system shutdown
> freezes at the very end. I see the buffers synced to the disks and get the
> "All buffers synced" message. Then it just hangs. The disks are not marked
> as clean and are fscked after a reset and boot.
>
> There is not much between the "All buffers synced" message and the call to
> vfs_unmountall(), so I suspect it is hanging in that call. I admit that I
> am pretty much lost whenever I look at the VFS code and I have not put a
> lot of effort going further. Just hoping that someone familiar with it
> might have an idea.
>
> I have tried several reboots and all run normally. The problem only seems
> to appear when upgrading the OS. It happened repeatedly when I tried to
> reboot before doing the second "install" pass of freebsd-update, but not
> after, so the kernel and world are not in sync. I am baffled as to what
> could be going on, but it means I need to be at the system (a baby server)
> when I upgrade, but not every time I upgrade. I know it happened on the
> 10.0-RELEAASE to 10.1-BETA1 and 10.1-RC1 to 10.1-RC2 upgrades.
>
> Has anyone else seen this?
>
> The system is an Asus VivoPC VM40B-2.
> CPU: Intel(R) Celeron(R) CPU 1007U @ 1.50GHz (1496.63-MHz K8-class CPU)
> Origin = "GenuineIntel" Id = 0x306a9 Family = 0x6 Model = 0x3a
> Stepping =9
>
> 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=0xdbae3bf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,XSAVE,OSXSAVE>
> AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM>
> AMD Features2=0x1<LAHF>
> Structured Extended Features=0x281<FSGSBASE,SMEP,ERMS>
> VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID
> TSC: P-state invariant, performance statistics
> real memory = 4294967296 (4096 MB)
> avail memory = 4014346240 (3828 MB)
My usual question for this is does the following help especially if you
have IPMI loaded at the time.
sysctl hw.usb.no_shutdown_wait=1
Regards
Steve
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