Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)]

2021-05-11 Thread Christoph Hellwig
On Tue, May 11, 2021 at 09:51:20AM -0700, Stefano Stabellini wrote: > On Tue, 11 May 2021, Christoph Hellwig wrote: > > On Tue, May 11, 2021 at 09:47:33AM -0700, Stefano Stabellini wrote: > > > That's a much better plan. It is also not super urgent, so maybe for now > > > we could add an explicit

Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)]

2021-05-11 Thread Stefano Stabellini
On Tue, 11 May 2021, Christoph Hellwig wrote: > On Tue, May 11, 2021 at 09:47:33AM -0700, Stefano Stabellini wrote: > > That's a much better plan. It is also not super urgent, so maybe for now > > we could add an explicit check for io_tlb_default_mem != NULL at the > > beginning of

Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)]

2021-05-11 Thread Christoph Hellwig
On Tue, May 11, 2021 at 09:47:33AM -0700, Stefano Stabellini wrote: > That's a much better plan. It is also not super urgent, so maybe for now > we could add an explicit check for io_tlb_default_mem != NULL at the > beginning of xen_swiotlb_init? So that at least we can fail explicitly > or ignore

Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)]

2021-05-11 Thread Stefano Stabellini
On Tue, 11 May 2021, Christoph Hellwig wrote: > On Mon, May 10, 2021 at 06:46:34PM -0700, Stefano Stabellini wrote: > > On Mon, 10 May 2021, Christoph Hellwig wrote: > > > On Sat, May 08, 2021 at 12:32:37AM +0100, Julien Grall wrote: > > > > The pointer dereferenced seems to suggest that the

Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)

2021-05-11 Thread Christoph Hellwig
On Mon, May 10, 2021 at 06:46:34PM -0700, Stefano Stabellini wrote: > On Mon, 10 May 2021, Christoph Hellwig wrote: > > On Sat, May 08, 2021 at 12:32:37AM +0100, Julien Grall wrote: > > > The pointer dereferenced seems to suggest that the swiotlb hasn't been > > > allocated. From what I can tell,

Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)

2021-05-10 Thread Stefano Stabellini
On Mon, 10 May 2021, Christoph Hellwig wrote: > On Sat, May 08, 2021 at 12:32:37AM +0100, Julien Grall wrote: > > The pointer dereferenced seems to suggest that the swiotlb hasn't been > > allocated. From what I can tell, this may be because swiotlb_force is set > > to SWIOTLB_NO_FORCE, we will

Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)

2021-05-10 Thread Florian Fainelli
On 5/10/2021 11:15 AM, Julien Grall wrote: > Hi Christoph, > > On 10/05/2021 09:40, Christoph Hellwig wrote: >> On Sat, May 08, 2021 at 12:32:37AM +0100, Julien Grall wrote: >>> The pointer dereferenced seems to suggest that the swiotlb hasn't been >>> allocated. From what I can tell, this may

Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)

2021-05-10 Thread Julien Grall
Hi Christoph, On 10/05/2021 09:40, Christoph Hellwig wrote: On Sat, May 08, 2021 at 12:32:37AM +0100, Julien Grall wrote: The pointer dereferenced seems to suggest that the swiotlb hasn't been allocated. From what I can tell, this may be because swiotlb_force is set to SWIOTLB_NO_FORCE, we

Re: Regression when booting 5.15 as dom0 on arm64 (WAS: Re: [linux-linus test] 161829: regressions - FAIL)

2021-05-10 Thread Christoph Hellwig
On Sat, May 08, 2021 at 12:32:37AM +0100, Julien Grall wrote: > The pointer dereferenced seems to suggest that the swiotlb hasn't been > allocated. From what I can tell, this may be because swiotlb_force is set > to SWIOTLB_NO_FORCE, we will still enable the swiotlb when running on top > of