Re: disk-io lockup in 4.14.13 kernel

2018-03-24 Thread Jaco Kroon
Hi Bart, Does the following go with your theory: [452545.945561] sysrq: SysRq : Show backtrace of all active CPUs [452545.946182] NMI backtrace for cpu 5 [452545.946185] CPU: 5 PID: 31921 Comm: bash Tainted: G  I 4.14.13-uls #2 [452545.946186] Hardware name: Supermicro

Re: [PATCH v3 01/11] PCI/P2PDMA: Support peer-to-peer memory

2018-03-24 Thread Stephen Bates
> That would be very nice but many devices do not support the internal > route. But Logan in the NVMe case we are discussing movement within a single function (i.e. from a NVMe namespace to a NVMe CMB on the same function). Bjorn is discussing movement between two functions (PFs or VFs) in the

Re: [PATCH 1/3] blk-mq: Allow PCI vector offset for mapping queues

2018-03-24 Thread jianchao.wang
Hi Keith Thanks for your time and patch for this. On 03/24/2018 06:19 AM, Keith Busch wrote: > The PCI interrupt vectors intended to be associated with a queue may > not start at 0. This patch adds an offset parameter so blk-mq may find > the intended affinity mask. The default value is 0 so