RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-14 Thread Michael Kelley
From: Michael Kelley Sent: Monday, February 10, 2025 1:36 PM > > From: thomas@oracle.com Sent: Monday, February > 10, 2025 7:08 AM > > > > > > > > >> Then the question is why the efifb driver doesn't work in the kdump > > >> kernel. Actually, it *does* work in many cases. I built the 6.13

RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-11 Thread Michael Kelley
From: Maxim Levitsky Sent: Monday, February 10, 2025 3:57 PM > > On Mon, 2025-02-10 at 21:35 +, Michael Kelley wrote: > > From: thomas@oracle.com Sent: Monday, February > > 10, 2025 7:08 AM > > > > > > > > > > > Then the question is why the efifb driver doesn't work in the kdump > > >

Re: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-10 Thread Maxim Levitsky
On Mon, 2025-02-10 at 21:35 +, Michael Kelley wrote: > From: thomas@oracle.com Sent: Monday, February > 10, 2025 7:08 AM > > > > > > > > Then the question is why the efifb driver doesn't work in the kdump > > > > kernel. Actually, it *does* work in many cases. I built the 6.13.0 > > >

RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-10 Thread Michael Kelley
From: thomas@oracle.com Sent: Monday, February 10, 2025 7:08 AM > > > > >> Then the question is why the efifb driver doesn't work in the kdump > >> kernel. Actually, it *does* work in many cases. I built the 6.13.0 kernel > >> on the Oracle Linux 9.4 system, and transferred the kernel imag

Re: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-10 Thread thomas . tai
Then the question is why the efifb driver doesn't work in the kdump kernel. Actually, it *does* work in many cases. I built the 6.13.0 kernel on the Oracle Linux 9.4 system, and transferred the kernel image binary and module binaries to an Ubuntu 20.04 VM in Azure. In that VM, the efifb driver

RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-07 Thread Michael Kelley
v_fb failed with error -110 > [ 605.254672] hv_vmbus: registering driver hv_pci > > > > > - Saurabh > > > -Original Message- > > From: Michael Kelley > > Sent: 07 February 2025 02:30 > > To: Michael Kelley ; Thomas Tai > > ; mhkelle...@gmail.

RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-07 Thread Michael Kelley
From: Michael Kelley Sent: Thursday, February 6, 2025 1:00 PM > > From: Michael Kelley > > > > From: Thomas Tai Sent: Thursday, January 30, 2025 > > 12:44 PM > > > > > > > -Original Message- > > > > From: Michael Kelley Sent: Thursday, January 30, > > > > 2025 3:20 PM > > > > > > >

RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-07 Thread Saurabh Singh Sengar
> Helge Deller ; dan...@ffwll.ch; airl...@gmail.com; > tzimmerm...@suse.de > Cc: dri-devel@lists.freedesktop.org; linux-fb...@vger.kernel.org; linux- > ker...@vger.kernel.org; linux-hyp...@vger.kernel.org > Subject: [EXTERNAL] RE: hyper_bf soft lockup on Azure Gen2 VM when taking > kdump or

Re: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-07 Thread thomas . tai
On 2025-02-06 4:00 p.m., Michael Kelley wrote: From: Michael Kelley From: Thomas Tai Sent: Thursday, January 30, 2025 12:44 PM -Original Message- From: Michael Kelley Sent: Thursday, January 30, 2025 3:20 PM From: Thomas Tai Sent: Thursday, January 30, 2025 10:50 AM Sorry for th

RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-06 Thread Michael Kelley
From: Michael Kelley > > From: Thomas Tai Sent: Thursday, January 30, 2025 > 12:44 PM > > > > > -Original Message- > > > From: Michael Kelley Sent: Thursday, January 30, > > > 2025 3:20 PM > > > > > > From: Thomas Tai Sent: Thursday, January 30, > > > 2025 10:50 AM > > > > > > > > So

RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-02-03 Thread Michael Kelley
e...@microsoft.com; > > drawat.fl...@gmail.com; javi...@redhat.com; Helge Deller > > ; dan...@ffwll.ch; airl...@gmail.com; > > tzimmerm...@suse.de > > Cc: dri-devel@lists.freedesktop.org; linux-fb...@vger.kernel.org; linux- > > ker...@vger.kernel.org; linux-hyp...@vger.kernel.

RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-01-30 Thread Michael Kelley
From: Thomas Tai Sent: Thursday, January 30, 2025 10:50 AM > > Sorry for the typo in the subject title. It should have been 'hyperv_fb soft > lockup on > Azure Gen2 VM when taking kdump or executing kexec' > > Thomas > > > > > Hi Michael, > > > > We see an issue with the mainline kernel on th

RE: hyper_bf soft lockup on Azure Gen2 VM when taking kdump or executing kexec

2025-01-30 Thread Thomas Tai
> -Original Message- > From: Thomas Tai > Sent: Thursday, January 30, 2025 1:37 PM > To: mhkelle...@gmail.com; haiya...@microsoft.com; wei@kernel.org; > de...@microsoft.com; drawat.fl...@gmail.com; javi...@redhat.com; Helge > Deller ; dan...@ffwll.ch; airl...@gmail.com; > tzimmerm...@s