[Bug 15705] New: R300 + KMS creating WARNING when running some OpenGL programs

[Bug 15705] New: R300 + KMS creating WARNING when running some OpenGL programs

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=15705

           Summary: R300 + KMS creating WARNING when running some OpenGL
                    programs
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.33.2
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: rankincj@yahoo.com
        Regression: No


This is the second time I've triggered this WARNING:

------------[ cut here ]------------
WARNING: at /home/chris/LINUX/linux-2.6.33/arch/x86/kernel/apic/ipi.c:109
default_send_IPI_mask_logical+0x2a/0xad()
Hardware name: Precision WorkStation 650    
empty IPI mask
Modules linked in: snd_seq_oss snd_seq_midi snd_seq_dummy fuse nfsd exportfs
autofs4 nfs lockd auth_rpcgss sunrpc p4_clockmod speedstep_lib af_packet
ipt_LOG xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables
ip6t_LOG nf_conntrack_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables
x_tables ipv6 binfmt_misc dm_mirror dm_region_hash dm_log dm_mod uinput
snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_event
snd_seq_midi_emul snd_emu10k1 snd_ac97_codec snd_usb_audio ac97_bus snd_seq
snd_pcm joydev firewire_ohci usbhid snd_timer ppdev firewire_core uvcvideo
snd_usb_lib snd_page_alloc psmouse snd_rawmidi snd_util_mem snd_seq_device
parport_pc crc_itu_t snd_hwdep pcspkr serio_raw sg i2c_i801 snd videodev floppy
v4l1_compat parport soundcore dcdbas ext3 jbd mbcache sr_mod cdrom sd_mod
pata_acpi ata_piix sata_sil uhci_hcd libata scsi_mod e1000 ehci_hcd usbcore
thermal button radeon intel_agp ttm drm_kms_helper drm agpgart i2c_algo_bit
cfbcopyarea cfbimgblt 
cfbfillrect [last unloaded: processor]
Pid: 15, comm: events/0 Not tainted 2.6.33.2 #1
Call Trace:
[<c102559b>] ? warn_slowpath_common+0x5d/0x70
[<c10171d2>] ? __cpa_flush_range+0x0/0x24
[<c10255e1>] ? warn_slowpath_fmt+0x26/0x2a
[<c101274c>] ? default_send_IPI_mask_logical+0x2a/0xad
[<c10171d2>] ? __cpa_flush_range+0x0/0x24
[<c1011381>] ? native_send_call_func_ipi+0x4f/0x56
[<c1043aa0>] ? smp_call_function_many+0x161/0x17a
[<c10171d2>] ? __cpa_flush_range+0x0/0x24
[<c1043ae2>] ? smp_call_function+0x29/0x4f
[<c10171d2>] ? __cpa_flush_range+0x0/0x24
[<c10297f9>] ? on_each_cpu+0x23/0x50
[<c1017abe>] ? change_page_attr_set_clr+0x24a/0x2c6
[<c1017c86>] ? _set_memory_wb+0x17/0x1b
[<c1017c96>] ? set_memory_wb+0xc/0x31
[<f80bac75>] ? ttm_tt_set_caching+0x9d/0x1a5 [ttm]
[<f80bad9b>] ? ttm_tt_free_alloced_pages+0x1e/0x88 [ttm]
[<f80bb130>] ? ttm_tt_destroy+0x37/0x73 [ttm]
[<f80bb6e9>] ? ttm_bo_release_list+0x67/0x97 [ttm]
[<f80bb682>] ? ttm_bo_release_list+0x0/0x97 [ttm]
[<c10e5f5a>] ? kref_put+0x36/0x3e
[<f80bc31c>] ? ttm_bo_delayed_delete+0xab/0xb5 [ttm]
[<f80bc336>] ? ttm_bo_delayed_workqueue+0x10/0x23 [ttm]
[<c1032619>] ? worker_thread+0x114/0x19c
[<f80bc326>] ? ttm_bo_delayed_workqueue+0x0/0x23 [ttm]
[<c1035241>] ? autoremove_wake_function+0x0/0x29
[<c1032505>] ? worker_thread+0x0/0x19c
[<c1034f3f>] ? kthread+0x5f/0x64
[<c1034ee0>] ? kthread+0x0/0x64
[<c1002cb6>] ? kernel_thread_helper+0x6/0x10

This was with stock 2.6.33.2, and was almost certainly triggered by an OpenGL
screensaver. The other time was triggered trying to capture a celestia
screenshot using Gimp 2.6.

The hardware is an AGP Radeon 9550 (RV350) with Mesa from F12 and
xorg-xf86-drv-ati from git.

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[Bug 15705] R300 + KMS creating WARNING when running some OpenGL programs

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=15705


Andrew Morton <akpm@linux-foundation.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |akpm@linux-foundation.org
          Component|Video(DRI - non Intel)      |x86-64
         AssignedTo|drivers_video-dri@kernel-bu |platform_x86_64@kernel-bugs
                   |gs.osdl.org                 |.osdl.org
            Product|Drivers                     |Platform Specific/Hardware




--- Comment #1 from Andrew Morton <akpm@linux-foundation.org>  2010-04-07 22:23:51 ---
Thanks.  I'll reassign this to x86.  The ttm driver is simply calling
set_memory_wb().  I see no way in which the ttm driver can cause an empty IPI
mask all the way down in the APIC code.

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Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
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