Re: PR/52440 CVS commit: src/sys/external/bsd/drm2/dist/drm/nouveau/nvkm/subdev/pci

["John D. Baker" <jdbaker%consolidated.net@localhost>]

The following reply was made to PR kern/52440; it has been noted by GNATS.

From: "John D. Baker" <jdbaker%consolidated.net@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: PR/52440 CVS commit: src/sys/external/bsd/drm2/dist/drm/nouveau/nvkm/subdev/pci
Date: Thu, 13 Feb 2020 10:26:21 -0600 (CST)

 On Wed, 12 Feb 2020, Jaromir Dolecek wrote:
 
 >  Log Message:
 >  adjust the PCI interrupt allocation code to work the same as
 >  drm_pci_request_irq(), now the driver successfully allocates MSI interrupt
 >  
 >  [   3.6619808] nouveau0: info: NVIDIA GK208B (b06070b1)
 >  [   3.7685336] nouveau0: info: bios: version 80.28.78.00.4b
 >  [   3.7785491] nouveau0: interrupting at msi8 vec 0 (nouveau0)
 >  
 >  related to PR kern/52440 by John D. Baker
 
 As a sanity check, the latest amd64-9.99.46 boots and runs fine on the
 HP Pavilion desktop w/NVIDIA G64 (which always worked with MSI).
 
 Booting on a machine originally affected by the black screen upon
 attaching the nouveau frambuffer console (NVIDIA G92) freezes the display
 after:
 
 [...]
 nouveau0: info: DRM: MM: using CRYPT for buffer copies
 nouveaufb0 at nouveau0
 [display frozen]
 
 I can blindly enter DDB and force it to reboot, so it's not completely
 hung.
 
 I rebooted in userconf mode to fsck the USB stick to recover from the
 forced reboot.  When issuing 'shutdown -r now ; exit', it panicked during
 the shutdown procedure.  Not nouveau related, it's a USB assertion that
 failed.
 
 I'll see if I can get information from blind operation.  Attaching a
 serial console may mask the problem if the framebuffer console doesn't
 attach due to console being on a serial port.
 
 -- 
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