Re: [PATCH 1/1] fbdev: hyperv_fb: Fix hang in kdump kernel when on Hyper-V Gen 2 VMs

2025-03-09 Thread Wei Liu
On Tue, Feb 18, 2025 at 03:01:30PM -0800, mhkelle...@gmail.com wrote: > From: Michael Kelley > > Gen 2 Hyper-V VMs boot via EFI and have a standard EFI framebuffer > device. When the kdump kernel runs in such a VM, loading the efifb > driver may hang because of accessing the framebuffer at the wr

Re: [PATCH 1/1] fbdev: hyperv_fb: Fix hang in kdump kernel when on Hyper-V Gen 2 VMs

2025-03-09 Thread Wei Liu
On Sun, Mar 09, 2025 at 03:20:04PM +0100, Helge Deller wrote: > On 3/9/25 05:10, Michael Kelley wrote: > > From: Helge Deller Sent: Saturday, March 8, 2025 6:59 PM > > > > > > On 2/19/25 00:01, mhkelle...@gmail.com wrote: > > > > From: Michael Kelley > > > > > > [snip] > > > > > > > > > > Rep

Re: [PATCH 1/1] fbdev: hyperv_fb: Fix hang in kdump kernel when on Hyper-V Gen 2 VMs

2025-03-09 Thread Helge Deller
On 3/9/25 05:10, Michael Kelley wrote: From: Helge Deller Sent: Saturday, March 8, 2025 6:59 PM On 2/19/25 00:01, mhkelle...@gmail.com wrote: From: Michael Kelley [snip] Reported-by: Thomas Tai Fixes: c25a19afb81c ("fbdev/hyperv_fb: Do not clear global screen_info") Signed-off-by: Mich

RE: [PATCH 1/1] fbdev: hyperv_fb: Fix hang in kdump kernel when on Hyper-V Gen 2 VMs

2025-03-08 Thread Michael Kelley
From: Helge Deller Sent: Saturday, March 8, 2025 6:59 PM > > On 2/19/25 00:01, mhkelle...@gmail.com wrote: > > From: Michael Kelley > > [snip] > > > > Reported-by: Thomas Tai > > Fixes: c25a19afb81c ("fbdev/hyperv_fb: Do not clear global screen_info") > > Signed-off-by: Michael Kelley > > ---

Re: [PATCH 1/1] fbdev: hyperv_fb: Fix hang in kdump kernel when on Hyper-V Gen 2 VMs

2025-03-08 Thread Helge Deller
On 2/19/25 00:01, mhkelle...@gmail.com wrote: From: Michael Kelley Gen 2 Hyper-V VMs boot via EFI and have a standard EFI framebuffer device. When the kdump kernel runs in such a VM, loading the efifb driver may hang because of accessing the framebuffer at the wrong memory address. The scenari

[PATCH 1/1] fbdev: hyperv_fb: Fix hang in kdump kernel when on Hyper-V Gen 2 VMs

2025-02-18 Thread mhkelley58
From: Michael Kelley Gen 2 Hyper-V VMs boot via EFI and have a standard EFI framebuffer device. When the kdump kernel runs in such a VM, loading the efifb driver may hang because of accessing the framebuffer at the wrong memory address. The scenario occurs when the hyperv_fb driver in the origin