[Bug 38694] Server freezes with latest commit on 22/06/2011

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38694

--- Comment #12 from Emanuele <tomasi at cli.di.unipi.it> 2011-09-18 14:31:18 PDT ---
Hi Alex,
now I'm using kernel v3.0.4. I noticed that I have freeze also when I put my
current wire into socket, sometimes.
Remember that I receive this message on standby or when I do:
---
echo "low" > /sys/class/drm/card0/device/power_profile
---
NMI: PCI system error (SERR) for reason b1 on CPU 0.
Dazed and confused, but trying to continue
---
and I do this when the current wire is pulled off whereas I do:
---
echo "auto" > /sys/class/drm/card0/device/power_profile
---
when is inserted.

I have noticed also that sometimes I receive that message at boot time:
---[drm] Initialized drm 1.1.0 20060810
[drm] radeon defaulting to kernel modesetting.
[drm] radeon kernel modesetting enabled.
radeon 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
radeon 0000:01:00.0: setting latency timer to 64
[drm] initializing kernel modesetting (RV515 0x1002:0x7145 0x1028:0x2003).
[drm] register mmio base: 0xEFDF0000
[drm] register mmio size: 65536
ATOM BIOS: M54P
[drm] Generation 2 PCI interface, using max accessible memory
radeon 0000:01:00.0: VRAM: 256M 0x0000000000000000 - 0x000000000FFFFFFF (128M
used)
radeon 0000:01:00.0: GTT: 512M 0x0000000010000000 - 0x000000002FFFFFFF
[drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[drm] Driver supports precise vblank timestamp query.
radeon 0000:01:00.0: irq 43 for MSI/MSI-X
radeon 0000:01:00.0: radeon: using MSI.
[drm] radeon: irq initialized.
[drm] Detected VRAM RAM=256M, BAR=256M
[drm] RAM width 64bits DDR
[TTM] Zone  kernel: Available graphics memory: 1028024 kiB.
[TTM] Initializing pool allocator.
[drm] radeon: 128M of VRAM memory ready
[drm] radeon: 512M of GTT memory ready.
[drm] GART: num cpu pages 131072, num gpu pages 131072
NMI: PCI system error (SERR) for reason b1 on CPU 0.
Dazed and confused, but trying to continue
[drm] radeon: 1 quad pipes, 1 z pipes initialized.
[drm] PCIE GART of 512M enabled (table at 0x00040000).
radeon 0000:01:00.0: WB enabled
[drm] Loading R500 Microcode
[drm] radeon: ring at 0x0000000010001000
[drm] ring test succeeded in 10 usecs
[drm] radeon: ib pool ready.
[drm] ib test succeeded in 0 usecs
[drm] Radeon Display Connectors
[drm] Connector 0:
[drm]   VGA
[drm]   DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c
[drm]   Encoders:
[drm]     CRT1: INTERNAL_KLDSCP_DAC1
[drm] Connector 1:
[drm]   LVDS
[drm]   DDC: 0x7e30 0x7e30 0x7e34 0x7e34 0x7e38 0x7e38 0x7e3c 0x7e3c
[drm]   Encoders:
[drm]     LCD1: INTERNAL_LVTM1
[drm] Connector 2:
[drm]   S-video
[drm]   Encoders:
[drm]     TV1: INTERNAL_KLDSCP_DAC2
[drm] Radeon display connector VGA-1: No monitor connected or invalid EDID
[drm] Radeon display connector LVDS-1: Found valid EDID
[drm] radeon: power management initialized
[drm] fb mappable at 0xD00C0000
[drm] vram apper at 0xD0000000
[drm] size 4096000
[drm] fb depth is 24
[drm]    pitch is 5120
fbcon: radeondrmfb (fb0) is primary device
Console: switching to colour frame buffer device 160x50
fb0: radeondrmfb frame buffer device
drm: registered panic notifier
[drm] Initialized radeon 2.10.0 20080528 for 0000:01:00.0 on minor 0
---

I hope that this can help you to investigate,
Emanuele

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