Date: Fri, 9 Sep 2016 11:49:25 +0100 From: Dom <misc-freebsd@talk2dom.com> To: freebsd-virtualization@freebsd.org Subject: Re: Issues with GTX960 on CentOS7 using bhyve PCI passthru (FreeBSD 11-RC2) Message-ID: <2a0d0094-3263-de91-b3f8-38dda4a523ac@talk2dom.com> In-Reply-To: <22df7de9-1dfb-561c-125d-99af2b3da70b@talk2dom.com> References: <727839e2-4be1-5661-8c19-6d13f73ad36f@talk2dom.com> <62b2a72a-3662-5b3e-5029-f284a625d05b@freebsd.org> <22df7de9-1dfb-561c-125d-99af2b3da70b@talk2dom.com>
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It looks like there may not be an issue with MSI after all. The nvidia driver is issued an IRQ when first used, not at boot time. If I run the CUDA "deviceQuery" sample then this appears in dmesg: [ 67.207929] nvidia 0000:00:06.0: irq 29 for MSI/MSI-X [ 67.646207] NVRM: RmInitAdapter failed! (0x24:0x1f:1356) [ 67.646570] NVRM: rm_init_adapter failed for device bearing minor number 0 [ 67.647214] NVRM: nvidia_frontend_open: minor 0, module->open() failed, error -5 Maybe the IRQ is deallocated immediately so doesn't appear in the output of /proc/interrupts? I guess I'll need to research the NVRM error above now but at least this thread might be useful regarding the BAR allocation.home | help
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