NetBSD-Bugs archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

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

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

From: "John D. Baker" <>
Subject: Re: kern/52440: nouveau blank screen w/some cards after MSI change
 in 7.99.64
Date: Tue, 4 Feb 2020 12:11:09 -0600 (CST)

 Following the MSI re-enabling for DRM devices generally and nouveau
 specifically, booting a 9.99.45 GENERIC kernel on the machine that
 previously had no problems with nouveau MSI interrupts panics attaching
 the framebuffer console.
 The backtrace ran off the screen and attempting to use LShift+PgUp
 faults in DDB rather than scroll back, so this is the last screenful
 of text (hand-transcribed as machine has no serial port):
 pci_msi_alloc_exact() at netbsd:pci_msi_alloc_exact+0x64
 pci_intr_alloc() at netbsd:pci_intr_alloc+0x152
 nvkm_pci_init() at netbsd:nvkm_pci_init+0x7a
 nvkm_subdev_init() at netbsd:nvkm_subdev_init+0x8d
 nvkm_device_init() at netbsd:nvkm_device_init+0x262
 nvkm_udevice_init() at netbsd:nvkm_udevice_init+0x4b
 nvkm_object_init() at netbsd:nvkm_object_init+0x62
 nvkm_ioctl_new() at netbsd:nvkm_ioctl_new+0x227
 nvkm_ioctl() at netbsd:nvkm_ioctl+0x10a
 nvif_object_init() at netbsd:nvif_object_init+0xb8
 nvif_device_init() at netbsd_nvif_device_init+0x11
 nouveau_drm_load() at netbsd:nouveau_drm_load+0xeb
 drm_dev_register() at netbsd:drm_dev_register+0xa5
 drm_pci_attach() at netbsd:drm_pci_attach+0x19e
 nouveau_pci_attach_real() at netbsd:nouveau_pci_attach_real+0xb1
 config_mountroot_thread() at netbsd:config_mountroot_thread+0x6f
 cpu0: End traceback...
 fatal breakpoint trap in supervisor mode
 trap type 1 code 0 rip 0x ffffffff8021f55d cs 0x8 rflags 0x202 cr2 0 ilevel 0 rsp 0xffff8280bf602900
 curlwp 0xffffabcde3d3c040 pid 0.79 lowest kstack 0xffff8280bf5ff2c0
 Stopped in pid 0.79 (system) at netbsd:breakpoint+0x5:  leave
 Attempting to scroll back with LShift+PgUp produces:
 fatal page fault in supervisor mode
 trap type 6 code 0 rip ffffffff8088e48e cs 0x8 rflags 0x10246 cr2 0x78 ilevel 0x8 rsp 0xffff8280bf604210
 curlwp 0xffffabcde3d3c040 pid 0.79 lowest kstack 0xffff8280bf5ff2c0
 kernel: page fault trap, code=0
 Faulted in DDB; continuing...
 This is netboot/NFS-root (and swap), so no crashdump could be saved.
 |/"\ John D. Baker, KN5UKS               NetBSD     Darwin/MacOS X
 |\ / jdbaker[snail]consolidated[flyspeck]net  OpenBSD            FreeBSD
 | X  No HTML/proprietary data in email.   BSD just sits there and works!
 |/ \ GPGkeyID:  D703 4A7E 479F 63F8 D3F4  BD99 9572 8F23 E4AD 1645

Home | Main Index | Thread Index | Old Index