On Sunday 19 November 2017 17:02:44 Steven Wallace wrote: > Ever since I have upgraded to FreeBSD 11.1 early this year, VirtualBox's > virtual disks will hang randomly. I have to SATA emulated devices which > are configured as FLAT devices to /dev/sd#x on two separate physical > drives. >
Just to clarify, after a few minutes of use, after a disk access, Windows 7 will hang apparently waiting for a response from the vbox virtual driver. The system is not under heavy I/O. I am not sure why makes such a big difference, but I appear to have workaround based off of https://www.virtualbox.org/ticket/15281 * *System*: [x] Enable I/O APIC * *SATA controller*: [x] Use host I/O cache * *VDI*: [x] Solid-state drive Using the host i/O cache seems to be the big ticket for me, although if it really is a cache, I do not understand why it would be necessary for correct operation. The following is a log after the hang, with the key error being: 00:05:52.661844 AioMgr0-N: Request 0x0000081a630b20 failed with rc=VERR_TRY_AGAIN, migrating endpoint /dev/ada0s1 to failsafe manager. 00:05:52.685027 AIOMgr: I/O manager 0x000008210bc3a0 encountered a critical error (rc=VERR_FILE_AIO_NO_REQUEST) during operation. Falling back to failsafe mode. Expect reduced performance 00:05:52.685114 AIOMgr: Error happened in /usr/ports/emulators/virtualbox- ose/work/VirtualBox-5.2.0/src/VBox/VMM/VMMR3/PDMAsyncCompletionFileNormal.cpp: (1673){int pdmacFileAioMgrNormal(RTTHREAD, void *)} 00:05:52.685162 AIOMgr: Please contact the product vendor Steven ----------------------------------------------------------------- 00:00:02.137669 CPL-DS - CPL Qualified Debug Store = 0 (0) 00:00:02.137670 VMX - Virtual Machine Extensions = 0 (0) 00:00:02.137672 SMX - Safer Mode Extensions = 0 (0) 00:00:02.137674 EST - Enhanced SpeedStep Technology = 0 (0) 00:00:02.137675 TM2 - Terminal Monitor 2 = 0 (0) 00:00:02.137677 SSSE3 - Supplemental Streaming SIMD Extensions 3 = 1 (1) 00:00:02.137683 CNTX-ID - L1 Context ID = 0 (0) 00:00:02.137685 SDBG - Silicon Debug interface = 0 (0) 00:00:02.137686 FMA - Fused Multiply Add extensions = 0 (1) 00:00:02.137688 CX16 - CMPXCHG16B instruction = 1 (1) 00:00:02.137689 TPRUPDATE - xTPR Update Control = 0 (0) 00:00:02.137691 PDCM - Perf/Debug Capability MSR = 0 (0) 00:00:02.137692 PCID - Process Context Identifiers = 0 (0) 00:00:02.137693 DCA - Direct Cache Access = 0 (0) 00:00:02.137695 SSE4_1 - SSE4_1 support = 1 (1) 00:00:02.137697 SSE4_2 - SSE4_2 support = 1 (1) 00:00:02.137698 X2APIC - x2APIC support = 0 (0) 00:00:02.137700 MOVBE - MOVBE instruction = 0 (0) 00:00:02.137702 POPCNT - POPCNT instruction = 1 (1) 00:00:02.137703 TSCDEADL - Time Stamp Counter Deadline = 0 (0) 00:00:02.137705 AES - AES instructions = 1 (1) 00:00:02.137706 XSAVE - XSAVE instruction = 0 (1) 00:00:02.137708 OSXSAVE - OSXSAVE instruction = 0 (1) 00:00:02.137709 AVX - AVX support = 0 (1) 00:00:02.137711 F16C - 16-bit floating point conversion instructions = 0 (1) 00:00:02.137712 RDRAND - RDRAND instruction = 0 (0) 00:00:02.137714 HVP - Hypervisor Present (we're a guest) = 1 (0) 00:00:02.137715 Structured Extended Feature Flags Enumeration (leaf 7): 00:00:02.137716 Mnemonic - Description = guest (host) 00:00:02.137716 FSGSBASE - RDFSBASE/RDGSBASE/WRFSBASE/WRGSBASE instr. = 0 (0) 00:00:02.137717 TSCADJUST - Supports MSR_IA32_TSC_ADJUST = 0 (0) 00:00:02.137718 SGX - Supports Software Guard Extensions = 0 (0) 00:00:02.137720 BMI1 - Advanced Bit Manipulation extension 1 = 0 (1) 00:00:02.137721 HLE - Hardware Lock Elision = 0 (0) 00:00:02.137722 AVX2 - Advanced Vector Extensions 2 = 0 (0) 00:00:02.137724 FDP_EXCPTN_ONLY - FPU DP only updated on exceptions = 0 (0) 00:00:02.137725 SMEP - Supervisor Mode Execution Prevention = 0 (0) 00:00:02.137726 BMI2 - Advanced Bit Manipulation extension 2 = 0 (0) 00:00:02.137727 ERMS - Enhanced REP MOVSB/STOSB instructions = 0 (0) 00:00:02.137728 INVPCID - INVPCID instruction = 0 (0) 00:00:02.137730 RTM - Restricted Transactional Memory = 0 (0) 00:00:02.137731 PQM - Platform Quality of Service Monitoring = 0 (0) 00:00:02.137732 DEPFPU_CS_DS - Deprecates FPU CS, FPU DS values if set = 0 (0) 00:00:02.137733 MPE - Intel Memory Protection Extensions = 0 (0) 00:00:02.137735 PQE - Platform Quality of Service Enforcement = 0 (0) 00:00:02.137736 AVX512F - AVX512 Foundation instructions = 0 (0) 00:00:02.137737 RDSEED - RDSEED instruction = 0 (0) 00:00:02.137743 ADX - ADCX/ADOX instructions = 0 (0) 00:00:02.137744 SMAP - Supervisor Mode Access Prevention = 0 (0) 00:00:02.137745 CLFLUSHOPT - CLFLUSHOPT (Cache Line Flush) instruction = 0 (0) 00:00:02.137746 INTEL_PT - Intel Processor Trace = 0 (0) 00:00:02.137748 AVX512PF - AVX512 Prefetch instructions = 0 (0) 00:00:02.137749 AVX512ER - AVX512 Exponential & Reciprocal instructions = 0 (0) 00:00:02.137750 AVX512CD - AVX512 Conflict Detection instructions = 0 (0) 00:00:02.137751 SHA - Secure Hash Algorithm extensions = 0 (0) 00:00:02.137753 PREFETCHWT1 - PREFETCHWT1 instruction = 0 (0) 00:00:02.137754 PKU - Protection Key for Usermode pages = 0 (0) 00:00:02.137755 OSPKU - CR4.PKU mirror = 0 (0) 00:00:02.137757 Processor Extended State Enumeration (leaf 0xd): 00:00:02.137758 XSAVE area cur/max size by XCR0, guest: 0x0/0x0 00:00:02.137759 XSAVE area cur/max size by XCR0, host: 0x3c0/0x3c0 00:00:02.137760 Valid XCR0 bits, guest: 0x00000000`00000000 00:00:02.137761 Valid XCR0 bits, host: 0x40000000`00000007 ( x87 SSE YMM_Hi128 LWP ) 00:00:02.137764 XSAVE features, guest: 00:00:02.137765 XSAVE features, host: 00:00:02.137766 XSAVE area cur size XCR0|XSS, guest: 0x0 00:00:02.137767 XSAVE area cur size XCR0|XSS, host: 0x0 00:00:02.137768 Valid IA32_XSS bits, guest: 0x00000000`00000000 00:00:02.137769 Valid IA32_XSS bits, host: 0x00000000`00000000 00:00:02.137770 State #2, host: off=0x0240, cb=0x0100 IA32_XSS-bit -- YMM_Hi128 00:00:02.137774 State #62, host: off=0x0340, cb=0x0080 IA32_XSS-bit -- LWP 00:00:02.137776 Raw Hypervisor CPUID Leaves 00:00:02.137777 Leaf/sub-leaf eax ebx ecx edx 00:00:02.137777 Gst: 40000000/0000 40000006 786f4256 786f4256 786f4256 00:00:02.137779 Hst: 00000000 00000000 00000000 00000000 00:00:02.137780 Gst: 40000001/0000 31237648 00000000 00000000 00000000 00:00:02.137781 Hst: 00000000 00000000 00000000 00000000 00:00:02.137782 Gst: 40000002/0000 00000000 00000000 00000000 00000000 00:00:02.137783 Hst: 00000000 00000000 00000000 00000000 00:00:02.137784 Gst: 40000003/0000 00000af2 00000000 00000000 00000500 00:00:02.137785 Hst: 00000000 00000000 00000000 00000000 _______________________________________________ freebsd-emulation@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-emulation To unsubscribe, send any mail to "freebsd-emulation-unsubscr...@freebsd.org"
