[Bug 60254] New: agd5f wip kernel Oops when provoking GPU lock.

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=60254

          Priority: medium
            Bug ID: 60254
          Assignee: dri-devel@lists.freedesktop.org
           Summary: agd5f wip kernel Oops when provoking GPU lock.
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: lists@andyfurniss.entadsl.com
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

The GPU lock with Rv670 and openarena is nothing new - it seems to have been a
feature for almost a year (I haven't used rv670 for most of that time).

On noticing the new gpu reset code in drm-next-3.9-wip I decided to provoke it
on my AGP box and got -

Feb  3 20:46:56 nf7 kernel: radeon 0000:02:00.0: GPU lockup CP stall for more
than 10000msec
Feb  3 20:46:56 nf7 kernel: radeon 0000:02:00.0: GPU lockup (waiting for
0x00000000000111c8 last fence id 0x00000000000111c6)
Feb  3 20:46:56 nf7 kernel: radeon 0000:02:00.0: f51df600 unpin not necessary
Feb  3 20:46:56 nf7 kernel: radeon 0000:02:00.0: Saved 217 dwords of commands
on ring 0.
Feb  3 20:46:56 nf7 kernel: BUG: unable to handle kernel paging request at
f87aec0c
Feb  3 20:46:56 nf7 kernel: IP: [<fa033a3e>] radeon_fence_process+0x7e/0x160
[radeon]
Feb  3 20:46:56 nf7 kernel: *pde = 3702f067 *pte = 00000000 
Feb  3 20:46:56 nf7 kernel: Oops: 0000 [#1] PREEMPT 
Feb  3 20:46:56 nf7 kernel: Modules linked in: radeon fbcon font bitblit ttm
softcursor drm_kms_helper drm fb fbdev i2c_algo_bit i2c_core cfbcopyarea
cfbimgblt cfbfillrect ehci_pci ehci_hcd nvidia_agp agpgart ohci_hcd usbhid
usbcore usb_common snd_intel8x0 snd_ac97_codec ac97_bus forcedeth
Feb  3 20:46:56 nf7 kernel: Pid: 2511, comm: openarena.i386 Not tainted
3.8.0-rc3-gc7fb5ff #1    /NF7-S/NF7 (nVidia-nForce2)
Feb  3 20:46:56 nf7 kernel: EIP: 0060:[<fa033a3e>] EFLAGS: 00210246 CPU: 0
Feb  3 20:46:56 nf7 kernel: EIP is at radeon_fence_process+0x7e/0x160 [radeon]
Feb  3 20:46:56 nf7 kernel: EAX: f87aec0c EBX: f73b2848 ECX: f73b2848 EDX:
00000000
Feb  3 20:46:56 nf7 kernel: ESI: 00000000 EDI: f73b2000 EBP: e4765d8c ESP:
e4765d58
Feb  3 20:46:56 nf7 kernel:  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
Feb  3 20:46:56 nf7 kernel: CR0: 8005003b CR2: f87aec0c CR3: 1e75f000 CR4:
000007d0
Feb  3 20:46:56 nf7 kernel: DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3:
00000000
Feb  3 20:46:56 nf7 kernel: DR6: ffff0ff0 DR7: 00000400
Feb  3 20:46:56 nf7 kernel: Process openarena.i386 (pid: 2511, ti=e4764000
task=f70ad2b0 task.ti=e4764000)
Feb  3 20:46:56 nf7 kernel: Stack:
Feb  3 20:46:56 nf7 kernel:  c13d4e58 00765d7c 00000018 f73b2848 f73b2888
00000872 00000003 00000872
Feb  3 20:46:56 nf7 kernel:  00000000 0000000c 00000003 f73b2a5c e4765e0c
e4765da4 fa034850 f73b2000
Feb  3 20:46:56 nf7 kernel:  f73b2000 f73b2a5c e4765e0c e4765dc4 fa049bb8
f73b28e8 00000000 c12b06cd
Feb  3 20:46:56 nf7 kernel: Call Trace:
Feb  3 20:46:56 nf7 kernel:  [<c13d4e58>] ? sub_preempt_count+0x8/0x80
Feb  3 20:46:56 nf7 kernel:  [<fa034850>] radeon_fence_count_emitted+0x20/0x90
[radeon]
Feb  3 20:46:56 nf7 kernel:  [<fa049bb8>] radeon_ring_backup+0x38/0x100
[radeon]
Feb  3 20:46:56 nf7 kernel:  [<c12b06cd>] ? _dev_info+0x2d/0x30
Feb  3 20:46:56 nf7 kernel:  [<fa020b22>] radeon_gpu_reset+0x62/0x1d0 [radeon]
Feb  3 20:46:56 nf7 kernel:  [<f8be99c6>] ? ttm_bo_unreserve+0x26/0x50 [ttm]
Feb  3 20:46:56 nf7 kernel:  [<fa04821d>]
radeon_gem_handle_lockup.part.2+0xd/0x20 [radeon]
Feb  3 20:46:56 nf7 kernel:  [<fa048b13>] radeon_gem_wait_idle_ioctl+0xb3/0xd0
[radeon]
Feb  3 20:46:56 nf7 kernel:  [<fa048a60>] ? radeon_gem_busy_ioctl+0xf0/0xf0
[radeon]
Feb  3 20:46:56 nf7 kernel:  [<f8af9e82>] drm_ioctl+0x402/0x460 [drm]
Feb  3 20:46:56 nf7 kernel:  [<fa048a60>] ? radeon_gem_busy_ioctl+0xf0/0xf0
[radeon]
Feb  3 20:46:56 nf7 kernel:  [<c104f469>] ? ktime_add_safe+0x9/0x60
Feb  3 20:46:56 nf7 kernel:  [<c104fe80>] ? hrtimer_forward+0xa0/0x190
Feb  3 20:46:56 nf7 kernel:  [<f8af9a80>] ? drm_copy_field+0x80/0x80 [drm]
Feb  3 20:46:56 nf7 kernel:  [<c10eb65a>] do_vfs_ioctl+0x7a/0x590
Feb  3 20:46:56 nf7 kernel:  [<c101ef0b>] ? lapic_next_event+0x1b/0x20
Feb  3 20:46:56 nf7 kernel:  [<c106978d>] ?
clockevents_program_event+0x9d/0x150
Feb  3 20:46:56 nf7 kernel:  [<c106ab18>] ? tick_program_event+0x28/0x30
Feb  3 20:46:56 nf7 kernel:  [<c1050612>] ? hrtimer_interrupt+0x182/0x2f0
Feb  3 20:46:56 nf7 kernel:  [<c13d4e58>] ? sub_preempt_count+0x8/0x80
Feb  3 20:46:56 nf7 kernel:  [<c1048cf9>] ? __rcu_read_unlock+0x9/0x60
Feb  3 20:46:56 nf7 kernel:  [<c10f4bc7>] ? fget_light+0x77/0xd0
Feb  3 20:46:56 nf7 kernel:  [<c10ebbac>] sys_ioctl+0x3c/0x70
Feb  3 20:46:56 nf7 kernel:  [<c13d7ffa>] sysenter_do_call+0x12/0x22
Feb  3 20:46:56 nf7 kernel: Code: 8b 4d d4 8d 84 51 f0 00 00 00 8b 74 c7 08 89
75 e0 8b 74 c7 0c 8b 45 d8 83 c0 08 80 bf ec 0d 00 00 00 0f 84 bf 00 00 00 8b
40 0c <8b> 00 39 45 e8 8b 4d ec 89 c3 ba 01 00 00 00 0f 47 ce 39 f1 77
Feb  3 20:46:56 nf7 kernel: EIP: [<fa033a3e>] radeon_fence_process+0x7e/0x160
[radeon] SS:ESP 0068:e4765d58
Feb  3 20:46:56 nf7 kernel: CR2: 00000000f87aec0c
Feb  3 20:46:56 nf7 kernel: ---[ end trace 457588a7cbc40235 ]---

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