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<head>
<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - radeon drm oops with benchmark=1 on Radeon 7950"
href="https://bugs.freedesktop.org/show_bug.cgi?id=62239">62239</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>radeon drm oops with benchmark=1 on Radeon 7950
</td>
</tr>
<tr>
<th>Severity</th>
<td>minor
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>frraaaanz+bugs.fdo@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Radeon
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>(This is possibly a dup of 25747)
Bug: when i append "radeon.benchmark=1" the kernel oopses
System is Arch linux, kernel version 3.8.2-1-ARCH, hardware is Radeon HD 7950
Log:
Mar 12 15:51:01 yennork kernel: [ 1.992473] [drm] initializing kernel
modesetting (TAHITI 0x1002:0x679A 0x1458:0x254C).
Mar 12 15:51:01 yennork kernel: [ 2.694236] [drm] radeon: dma 1024 bo moves
of 1024 kB from 2 to 4 in 253 ms, throughput: 33152 Mb/s or 4144 MB/s
Mar 12 15:51:01 yennork kernel: [ 2.694260] BUG: unable to handle kernel
NULL pointer dereference at (null)
Mar 12 15:51:01 yennork kernel: [ 2.694375] IP: [< (null)>]
(null)
Mar 12 15:51:01 yennork kernel: [ 2.694450] PGD 41bf9a067 PUD 41bf9b067 PMD
0
Mar 12 15:51:01 yennork kernel: [ 2.694586] Oops: 0010 [#1] PREEMPT SMP
Mar 12 15:51:01 yennork kernel: [ 2.694721] Modules linked in: hid_generic
usbhid hid mxm_wmi evdev radeon(+) snd_hda_codec_realtek fam15h_power
snd_hda_intel(+) ttm snd_hda_codec drm_kms_helper snd_hwdep drm snd_pcm
snd_page_alloc r8169 snd_timer snd i2c_algo_bit soundcore i2c_core mii nfs
lockd sunrpc fscache wmi button microcode kvm_amd kvm fuse acpi_cpufreq mperf
processor ext4 crc16 jbd2 mbcache dm_crypt dm_mod sr_mod cdrom sd_mod
crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 xts lrw gf128mul
ablk_helper cryptd ahci libahci ehci_pci ohci_hcd xhci_hcd ehci_hcd libata
usbcore scsi_mod usb_common pci_stub
Mar 12 15:51:01 yennork kernel: [ 2.696915] CPU 4
Mar 12 15:51:01 yennork kernel: [ 2.696953] Pid: 244, comm: systemd-udevd
Not tainted 3.8.2-1-ARCH #1 Gigabyte Technology Co., Ltd.
GA-990XA-UD3/GA-990XA-UD3
Mar 12 15:51:01 yennork kernel: [ 2.697041] RIP: 0010:[<0000000000000000>]
[< (null)>] (null)
Mar 12 15:51:01 yennork kernel: [ 2.697121] RSP: 0018:ffff88041bff3940
EFLAGS: 00010246
Mar 12 15:51:01 yennork kernel: [ 2.697164] RAX: ffffffffa04d3380 RBX:
0000000000000400 RCX: 0000000000000100
Mar 12 15:51:01 yennork kernel: [ 2.697210] RDX: 000000000114b000 RSI:
00000000c0431000 RDI: ffff88041c1ac000
Mar 12 15:51:01 yennork kernel: [ 2.697255] RBP: ffff88041bff39a8 R08:
ffff88041bff3970 R09: 000000000000034d
Mar 12 15:51:01 yennork kernel: [ 2.697300] R10: 0000000000000000 R11:
000000000000034c R12: 0000000000000001
Mar 12 15:51:01 yennork kernel: [ 2.697345] R13: ffff88041c1ac000 R14:
0000000000000100 R15: 00000000c0431000
Mar 12 15:51:01 yennork kernel: [ 2.697391] FS: 00007fec84a54780(0000)
GS:ffff88042ed00000(0000) knlGS:0000000000000000
Mar 12 15:51:01 yennork kernel: [ 2.697440] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Mar 12 15:51:01 yennork kernel: [ 2.697484] CR2: 0000000000000000 CR3:
000000041bf99000 CR4: 00000000000407e0
Mar 12 15:51:01 yennork kernel: [ 2.697529] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Mar 12 15:51:01 yennork kernel: [ 2.697574] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Mar 12 15:51:01 yennork kernel: [ 2.697621] Process systemd-udevd (pid: 244,
threadinfo ffff88041bff2000, task ffff88041a1110c0)
Mar 12 15:51:01 yennork kernel: [ 2.697670] Stack:
Mar 12 15:51:01 yennork kernel: [ 2.697707] ffffffffa0454a26
ffff88041bff39a8 ffffffff814ca2cb 00000000fffea35a
Mar 12 15:51:01 yennork kernel: [ 2.697881] 000000000114b000
ffff88041bff39d0 0000000000000000 ffff88041bff39f0
Mar 12 15:51:01 yennork kernel: [ 2.698054] ffff88041bff39f0
0000000000000002 ffff88041c1ac000 0000000000100000
Mar 12 15:51:01 yennork kernel: [ 2.698227] Call Trace:
Mar 12 15:51:01 yennork kernel: [ 2.698319] [<ffffffffa0454a26>] ?
radeon_benchmark_do_move.constprop.1+0xf6/0x120 [radeon]
Mar 12 15:51:01 yennork kernel: [ 2.698375] [<ffffffff814ca2cb>] ?
printk+0x4d/0x4f
Mar 12 15:51:01 yennork kernel: [ 2.698464] [<ffffffffa0454c9e>]
radeon_benchmark_move+0x24e/0x2b0 [radeon]
Mar 12 15:51:01 yennork kernel: [ 2.698555] [<ffffffffa0454e14>]
radeon_benchmark+0x114/0x2a0 [radeon]
Mar 12 15:51:01 yennork kernel: [ 2.698637] [<ffffffffa0424bc1>]
radeon_device_init+0x601/0x670 [radeon]
Mar 12 15:51:01 yennork kernel: [ 2.698720] [<ffffffffa042665d>]
radeon_driver_load_kms+0x9d/0x1a0 [radeon]
Mar 12 15:51:01 yennork kernel: [ 2.698776] [<ffffffffa039b976>]
drm_get_pci_dev+0x186/0x2c0 [drm]
Mar 12 15:51:01 yennork kernel: [ 2.698855] [<ffffffffa040c1d4>]
radeon_pci_probe+0xb4/0xf0 [radeon]
Mar 12 15:51:01 yennork kernel: [ 2.698904] [<ffffffff8129f7eb>]
local_pci_probe+0x4b/0x80
Mar 12 15:51:01 yennork kernel: [ 2.698950] [<ffffffff812a00b1>]
pci_device_probe+0x111/0x120
Mar 12 15:51:01 yennork kernel: [ 2.698999] [<ffffffff8135a41b>]
driver_probe_device+0x8b/0x3a0
Mar 12 15:51:01 yennork kernel: [ 2.699046] [<ffffffff8135a7db>]
__driver_attach+0xab/0xb0
Mar 12 15:51:01 yennork kernel: [ 2.699092] [<ffffffff8135a730>] ?
driver_probe_device+0x3a0/0x3a0
Mar 12 15:51:01 yennork kernel: [ 2.699138] [<ffffffff8135844d>]
bus_for_each_dev+0x5d/0xa0
Mar 12 15:51:01 yennork kernel: [ 2.699185] [<ffffffff81359e8e>]
driver_attach+0x1e/0x20
Mar 12 15:51:01 yennork kernel: [ 2.699230] [<ffffffff813599b0>]
bus_add_driver+0x1a0/0x290</pre>
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