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[Jon Smirl <jonsmirl@xxxxxxxxx>]

Same machine, different lockup


[24780.331879] radeon 0000:06:00.0: GPU lockup CP stall for more than 10020msec
[24780.331882] ------------[ cut here ]------------
[24780.331911] WARNING: at /build/buildd/linux-3.0.0/drivers/gpu/drm/radeon/radeon_fence.c:267 radeon_fence_wait+0x3fb/0x430 [radeon]()
[24780.331960] Hardware name: HPE-480t
[24780.331962] GPU lockup (waiting for 0x007E7E6B last fence id 0x007E7E64)
[24780.331963] Modules linked in: joydev hidp bnep rfcomm pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv kvm_intel kvm parport_pc ppdev binfmt_misc nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc radeon uvcvideo videodev ftdi_sio v4l2_compat_ioctl32 usbserial snd_usb_audio snd_usbmidi_lib ttm btusb drm_kms_helper drm snd_hda_codec_hdmi i7core_edac snd_hda_codec_realtek serio_raw snd_hda_intel snd_hda_codec snd_hwdep bluetooth edac_core i2c_algo_bit snd_seq_midi snd_pcm snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc lp parport raid10 raid456 async_pq async_xor hid_logitech ff_memless xor usb_storage async_memcpy async_raid6_recov usbhid hid uas ahci firewire_ohci libahci pata_jmicron firewire_core crc_itu_t e1000e raid6_pq async_tx raid1 raid0 multipath linear
[24780.332010] Pid: 1743, comm: Xorg Tainted: G        W   3.0.0-12-generic #20-Ubuntu
[24780.332012] Call Trace:
[24780.332018]  [<ffffffff8105e83f>] warn_slowpath_common+0x7f/0xc0
[24780.332021]  [<ffffffff8105e936>] warn_slowpath_fmt+0x46/0x50
[24780.332033]  [<ffffffffa03a426b>] radeon_fence_wait+0x3fb/0x430 [radeon]
[24780.332037]  [<ffffffff81081cb0>] ? add_wait_queue+0x60/0x60
[24780.332049]  [<ffffffffa03a4901>] radeon_sync_obj_wait+0x11/0x20 [radeon]
[24780.332056]  [<ffffffffa02ebd6d>] ttm_bo_wait+0xad/0x1c0 [ttm]
[24780.332060]  [<ffffffffa02ecad9>] ? ttm_bo_list_ref_sub+0x29/0x30 [ttm]
[24780.332074]  [<ffffffffa03bed6d>] radeon_gem_wait_idle_ioctl+0x8d/0x110 [radeon]
[24780.332083]  [<ffffffffa02b3574>] drm_ioctl+0x3e4/0x4c0 [drm]
[24780.332097]  [<ffffffffa03bece0>] ? radeon_gem_busy_ioctl+0x140/0x140 [radeon]
[24780.332101]  [<ffffffff8100a803>] ? do_signal+0x73/0x180
[24780.332104]  [<ffffffff81013201>] ? fpu_finit+0x21/0x40
[24780.332107]  [<ffffffff81013266>] ? init_fpu+0x46/0x130
[24780.332110]  [<ffffffff8117939a>] do_vfs_ioctl+0x8a/0x340
[24780.332112]  [<ffffffff811796e1>] sys_ioctl+0x91/0xa0
[24780.332116]  [<ffffffff815f22c2>] system_call_fastpath+0x16/0x1b
[24780.332118] ---[ end trace c69bc80a6e064be3 ]---
[24780.333237] radeon 0000:06:00.0: GPU softreset 
[24780.333239] radeon 0000:06:00.0:   GRBM_STATUS=0xA0003828
[24780.333241] radeon 0000:06:00.0:   GRBM_STATUS_SE0=0x00000007
[24780.333243] radeon 0000:06:00.0:   GRBM_STATUS_SE1=0x00000007
[24780.333245] radeon 0000:06:00.0:   SRBM_STATUS=0x20000AC0
[24780.333261] radeon 0000:06:00.0:   GRBM_SOFT_RESET=0x00007F6B
[24780.333363] radeon 0000:06:00.0:   GRBM_STATUS=0x00003828
[24780.333365] radeon 0000:06:00.0:   GRBM_STATUS_SE0=0x00000007
[24780.333368] radeon 0000:06:00.0:   GRBM_STATUS_SE1=0x00000007
[24780.333370] radeon 0000:06:00.0:   SRBM_STATUS=0x200000C0
[24780.334366] radeon 0000:06:00.0: GPU reset succeed
[24780.372375] radeon 0000:06:00.0: WB enabled
[24780.388921] [drm] ring test succeeded in 1 usecs
[24780.388933] [drm] ib test succeeded in 1 usecs

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https://bugs.launchpad.net/bugs/875073

Title:
  GPU lockups in the radeon driver

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