Re: "nosmt" breaks resuming from hibernation (was Re: [5.2-rc1 regression]: nvme vs. hibernation)

2019-05-29 Thread Jiri Kosina
On Wed, 29 May 2019, Peter Zijlstra wrote: > > > I verified that it succesfully makes it to the point where restore_image() > > > is called from swsusp_arch_resume() (and verified that only BSP is alive > > > at that time), but the old kernel never comes back and triplefault-like > > > reboot happ

Re: "nosmt" breaks resuming from hibernation (was Re: [5.2-rc1 regression]: nvme vs. hibernation)

2019-05-29 Thread Peter Zijlstra
On Tue, May 28, 2019 at 09:22:14PM +0200, Jiri Kosina wrote: > On Tue, 28 May 2019, Jiri Kosina wrote: > > > [ some x86/PM folks added ] > > > > I isolated this to 'nosmt' being present in the "outer" (resuming) kernel, > > and am still not sure whether this is x86 issue or nvme/PCI/blk-mq issue

Re: "nosmt" breaks resuming from hibernation (was Re: [5.2-rc1 regression]: nvme vs. hibernation)

2019-05-28 Thread Jiri Kosina
On Tue, 28 May 2019, Jiri Kosina wrote: > [ some x86/PM folks added ] > > I isolated this to 'nosmt' being present in the "outer" (resuming) kernel, > and am still not sure whether this is x86 issue or nvme/PCI/blk-mq issue. > > For the newcomers to this thread: on my thinkpad x270, 'nosmt' rel

"nosmt" breaks resuming from hibernation (was Re: [5.2-rc1 regression]: nvme vs. hibernation)

2019-05-28 Thread Jiri Kosina
On Mon, 27 May 2019, Jiri Kosina wrote: > > Looks this has been discussed in the past. > > > > http://lists.infradead.org/pipermail/linux-nvme/2019-April/023234.html > > > > I created a fix for a case but not good enough. > > > > http://lists.infradead.org/pipermail/linux-nvme/2019-April/023277

Re: [5.2-rc1 regression]: nvme vs. hibernation

2019-05-27 Thread Jiri Kosina
On Mon, 27 May 2019, Jiri Kosina wrote: > > Looks this has been discussed in the past. > > > > http://lists.infradead.org/pipermail/linux-nvme/2019-April/023234.html > > > > I created a fix for a case but not good enough. > > > > http://lists.infradead.org/pipermail/linux-nvme/2019-April/023277

Re: [5.2-rc1 regression]: nvme vs. hibernation

2019-05-27 Thread Jiri Kosina
On Sat, 25 May 2019, Dongli Zhang wrote: > Looks this has been discussed in the past. > > http://lists.infradead.org/pipermail/linux-nvme/2019-April/023234.html > > I created a fix for a case but not good enough. > > http://lists.infradead.org/pipermail/linux-nvme/2019-April/023277.html That r

Re: [5.2-rc1 regression]: nvme vs. hibernation

2019-05-24 Thread Dongli Zhang
Hi Jiri, Looks this has been discussed in the past. http://lists.infradead.org/pipermail/linux-nvme/2019-April/023234.html I created a fix for a case but not good enough. http://lists.infradead.org/pipermail/linux-nvme/2019-April/023277.html Perhaps people would have better solution. Dongli Z

Re: [5.2-rc1 regression]: nvme vs. hibernation

2019-05-24 Thread Jiri Kosina
On Fri, 24 May 2019, Keith Busch wrote: > > Something is broken in Linus' tree (4dde821e429) with respec to > > hibernation on my thinkpad x270, and it seems to be nvme related. > > > > I reliably see the warning below during hibernation, and then sometimes > > resume sort of works but the mach

Re: [5.2-rc1 regression]: nvme vs. hibernation

2019-05-24 Thread Keith Busch
On Fri, May 24, 2019 at 05:22:30PM +0200, Jiri Kosina wrote: > Hi, > > Something is broken in Linus' tree (4dde821e429) with respec to > hibernation on my thinkpad x270, and it seems to be nvme related. > > I reliably see the warning below during hibernation, and then sometimes > resume sort of