https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237271
Bug ID: 237271
Summary: Radeon video card no longer works on 12-STABLE
Product: Base System
Version: 12.0-STABLE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: sig...@gmail.com
My Radeon RX 560 stopped working after a 12-STABLE update. It coincides with
some DRM-related MFCs. I nailed it down to r345932. On r345929 (previous
revision affecting 12-STABLE), the card still works. But starting from
r345932, loading the amdgpu.ko module prints some DRM console messages and then
the display freezes. The system is still responsive afterward but it sometimes
panics with a page fault not long after. That's with
graphics/drm-fbsd12.0-kmod (rebuilt after each update while testing).
Here are logs of the kernel messages when the card does not work:
kernel: [48] <6>[drm] amdgpu kernel modesetting enabled.
kernel: [48] drmn0: <drmn> on vgapci0
kernel: [48] vgapci0: child drmn0 requested pci_enable_io
syslogd: last message repeated 1 times
kernel: [48] <6>[drm] initializing kernel modesetting (POLARIS11
0x1002:0x67FF 0x1462:0x8A91 0xCF).
kernel: [48] <6>[drm] register mmio base: 0xFE900000
kernel: [48] <6>[drm] register mmio size: 262144
kernel: [48] <6>[drm] PCI I/O BAR is not found.
kernel: [48] <6>[drm] probing gen 2 caps for device 1022:1453 =
737903/e
kernel: [48] <6>[drm] probing mlw for device 1002:67ff = 400883
kernel: [48] <6>[drm] UVD is enabled in VM mode
kernel: [48] <6>[drm] UVD ENC is enabled in VM mode
kernel: [48] <6>[drm] VCE enabled in VM mode
kernel: [48] ATOM BIOS: 113-C994LP-S01
kernel: [48] <6>[drm] vm size is 64 GB, 2 levels, block size is 10-bit,
fragment size is 9-bit
kernel: [49] drmn0: successfully loaded firmware image with name:
amdgpu/polaris11_mc.bin
kernel: [49] drmn0: VRAM: 4096M 0x000000F400000000 - 0x000000F4FFFFFFFF
(4096M used)
kernel: [49] drmn0: GTT: 256M 0x0000000000000000 - 0x000000000FFFFFFF
kernel: [49] Successfully added WC MTRR for [0xe0000000-0xefffffff]: 0;
kernel: [49] <6>[drm] Detected VRAM RAM=4096M, BAR=256M
kernel: [49] <6>[drm] RAM width 128bits GDDR5
kernel: [49] [drm:amdgpu_ttm_global_init] Failed setting up TTM memory
accounting subsystem.
kernel: [49] [drm:amdgpu_device_ip_init] sw_init of IP block <gmc_v8_0>
failed -12
kernel: [49] drmn0: amdgpu_device_ip_init failed
kernel: [49] drmn0: Fatal error during GPU init
kernel: [49] <6>[drm] amdgpu: finishing device.
kernel: [49] vgapci0: child drmn0 requested pci_disable_io
syslogd: last message repeated 1 times
kernel: [49] device_attach: drmn0 attach returned 12
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