Re: BUG: Mellanox crash with iommu=soft and swiotlb=force

2015-10-11 Thread Christoffer Dall
Hi, On Tue, Sep 29, 2015 at 12:59:35AM +0300, Or Gerlitz wrote: > On Tue, Sep 29, 2015 at 12:04 AM, Christoffer Dall > wrote: > > Hi, > > > > In doing some performance experiments I found that using a 10G Mellanox > > MX354A Dual port FDR CX3 device on a server running Apache and running > > ab a

Re: BUG: Mellanox crash with iommu=soft and swiotlb=force

2015-09-29 Thread Christoffer Dall
On Tue, Sep 29, 2015 at 12:59:35AM +0300, Or Gerlitz wrote: > On Tue, Sep 29, 2015 at 12:04 AM, Christoffer Dall > wrote: > > Hi, > > > > In doing some performance experiments I found that using a 10G Mellanox > > MX354A Dual port FDR CX3 device on a server running Apache and running > > ab agains

Re: BUG: Mellanox crash with iommu=soft and swiotlb=force

2015-09-28 Thread Or Gerlitz
On Tue, Sep 29, 2015 at 12:04 AM, Christoffer Dall wrote: > Hi, > > In doing some performance experiments I found that using a 10G Mellanox > MX354A Dual port FDR CX3 device on a server running Apache and running > ab against that server causes the system to crash with 'iommu=soft > swiotlb=force'

BUG: Mellanox crash with iommu=soft and swiotlb=force

2015-09-28 Thread Christoffer Dall
Hi, In doing some performance experiments I found that using a 10G Mellanox MX354A Dual port FDR CX3 device on a server running Apache and running ab against that server causes the system to crash with 'iommu=soft swiotlb=force'. The same behavior is seen without these options on Dom0 running und