Date: Sat, 14 Mar 2009 02:38:43 -0500 From: Robert Noland <rnoland@FreeBSD.org> To: "Sean C. Farley" <scf@FreeBSD.org> Cc: freebsd-stable@FreeBSD.org Subject: Re: Panic in radeon_get_vblank_counter() Message-ID: <1237016323.1789.13.camel@balrog.2hip.net> In-Reply-To: <alpine.BSF.2.00.0903132318050.1220@baba.farley.org> References: <alpine.BSF.2.00.0903131534040.6590@thor.farley.org> <1236997834.1735.30.camel@balrog.2hip.net> <alpine.BSF.2.00.0903132318050.1220@baba.farley.org>
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[-- Attachment #1 --] On Fri, 2009-03-13 at 23:33 -0500, Sean C. Farley wrote: > On Fri, 13 Mar 2009, Robert Noland wrote: > > > On Fri, 2009-03-13 at 15:49 -0500, Sean C. Farley wrote: > >> After upgrading my laptop (Dell 600m) yesterday, I have begun to > >> experience panics on it probably related to the DRM update. > >> > >> Killing the X server by Ctrl-Alt-Backspace is a good way to lock the > >> system. Reboot to get a core dump. > >> > >> Piece of Xorg.log concerning the hardware using the > >> xf86-video-ati-6.11.0 driver: > >> (--) PCI:*(0@1:0:0) ATI Technologies Inc Radeon RV250 [Mobility FireGL 9000] rev 1, Mem @ 0xe8000000/0, 0xfcff0000/0, I/O @ 0x0000c000/0, BIOS @ 0x????????/65536 > >> ... > >> (--) RADEON(0): Chipset: "ATI Radeon Mobility 9000 (M9) Lf (AGP)" (ChipID = 0x4c66) > >> > >> > >> Special options in xorg.conf: > >> Section "Device" > >> ... > >> Option "EnablePageFlip" "true" > >> Option "AccelMethod" "EXA" > >> EndSection > >> > >> Section "Screen" > >> ... > >> Option "AddARGBGLXVisuals" "True" > >> Option "DisableGLXRootClipping" "True" > >> Option "XAANoOffscreenPixmaps" "True" > >> ... > >> EndSection > >> > >> > >> pciconf -lv of the device: > >> vgapci0@pci0:1:0:0: class=0x030000 card=0x011e1028 chip=0x4c661002 rev=0x01 hdr=0x00 > >> vendor = 'ATI Technologies Inc' > >> device = 'ATI MOBILITY RADEON 9000 (Microsoft Corporation - Radeon Mobility M9' > >> class = display > >> subclass = VGA > >> > >> > >> /var/log/messages about drm: > >> Mar 13 15:41:51 baba kernel: drm0: <ATI Radeon Lf RV250 Mobility 9000 M9 / FireMV 2400 PCI> on vgapci0 > >> Mar 13 15:41:51 baba kernel: vgapci0: child drm0 requested pci_enable_busmaster > >> Mar 13 15:41:51 baba kernel: info: [drm] AGP at 0xe0000000 128MB > >> Mar 13 15:41:51 baba kernel: info: [drm] Initialized radeon 1.29.0 20080613 > >> Mar 13 15:41:52 baba kernel: info: [drm] Setting GART location based on new memory map > >> Mar 13 15:41:52 baba kernel: info: [drm] Loading R200 Microcode > >> Mar 13 15:41:52 baba kernel: info: [drm] writeback test succeeded in 1 usecs > >> Mar 13 15:41:52 baba kernel: drm0: [ITHREAD] > > > > Ok, I'll try to look at this soon... It would be useful if you could > > enable hw.dri.0.debug=1 and send me the debug output as well, if you > > can get anything useful before it locks up. > > I have not had luck reproducing a panic, but I can get the computer to > lock up at startup of the X server (rarely) and shutdown (often). > > This may not be accurate, but I think I am able to shutdown safely if I > switch to a tty and wait until this debug line is printed: > [drm:pid13:vblank_disable_fn] vblank_disable_allowed=1 Actually, vblank_disable_allowed should be 0 when you have switched out to a vt.. > If I start rebooting before it is printed, the system locks up. Of > course, this is only after rebooting several times. > > Here is a successful start and shutdown: > http://people.freebsd.org/~scf/drm-dmesg.log > http://people.freebsd.org/~scf/Xorg.0.log Ok, I'll spend some time staring at the current code... Thanks for the backtrace too, it's nice to get those... robert. > Does that help? > > Sean -- Robert Noland <rnoland@FreeBSD.org> FreeBSD [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (FreeBSD) iEYEABECAAYFAkm7XwMACgkQM4TrQ4qfROMz1wCfcEIGXE3awiOtHvqyu/9i9NEj CfEAn0TiKLscRAhvqkSAkODoVJEYDemp =CDuW -----END PGP SIGNATURE-----
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