Date: Tue, 14 Oct 2014 10:09:23 -0700 From: Kevin Oberman <rkoberman@gmail.com> To: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: System hang on shutdown when running freebsd-update Message-ID: <CAN6yY1tnjvW72Yn=o9vgiS9%2B7Asy2GR7758LN8jfzTuQ8fWu=Q@mail.gmail.com>
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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) R. Kevin Oberman, Network Engineer, Retired E-mail: rkoberman@gmail.com
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