Re: kern/52440: nouveau blank screen w/some cards after MSI change in 7.99.64

["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: Jared McNeill <jmcneill%invisible.ca@localhost>
Subject: Re: kern/52440: nouveau blank screen w/some cards after MSI change
 in 7.99.64
Date: Fri, 7 Feb 2020 12:49:03 -0600 (CST)

 Strangely, booting the Toshiba Qosmio F15R laptop with i386-9.0_RC2
 GENERIC (which should be INTx only) panics similarly:
 
 [...]
 kern.module.path=/stand/i386/9.0/modules
 nouveau0: info: NVIDIA NV43 (043800a4)
 nouveau0: info: bios: version 05.43.02.49.bc
 nouveau0: info: fb: 128 MiB DDR1
 uvm_fault(0xc13131e0, 0xdc0db000, 2) -> e
 fatal page fault in supervisor mode
 trap type 6 code 0x2 eip 0xc0cbdbd5 cs 0x8 eflags 0x10246 cr2 0xdc0dbffc ilevel 0 esp 0x8000
 curlwp 0xc2b9ec40 pid 0 lid 62 lowest kstack 0xdb0c22c0
 kernel: supervisor trap page fault, code=0
 Stopped in pid 0.63 (system) at netbsd:memset+0x25:      movl    %eax,fffffffc(%edi,%ecx,1)
 db{0}>
 
 (The other machines I'm testing are all amd64 machines, but they boot
 i386-9.0_RC2 and attach nouveau and the framebuffer console just fine.)
 
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