[Bug 63865] New: radeon_atombios_get_power_modes oops with E-350

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63865

          Priority: medium
            Bug ID: 63865
          Assignee: dri-devel at lists.freedesktop.org
           Summary: radeon_atombios_get_power_modes oops with E-350
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: fdo at zahe.me
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

With linux 3.8.8 on an AMD E-350 cpu, the screen corrupts and freezes during
modesetting switching. The system is otherwise responsive.

kernel: [drm]   Encoders:
kernel: [drm]     CRT1: INTERNAL_KLDSCP_DAC1
kernel: BUG: unable to handle kernel NULL pointer dereference at
0000000000000010
kernel: IP: [<ffffffffa034ceb8>] radeon_atombios_get_power_modes+0x748/0x7f0
[radeon]
kernel: PGD 1b5061067 PUD 1b502d067 PMD 0 
kernel: Oops: 0002 [#1] PREEMPT SMP 
kernel: Modules linked in: eeepc_wmi snd_hwdep asus_wmi radeon(+) sparse_keymap
rfkill video pci_hotplug snd_pcm snd_page_alloc ttm snd_timer microcode snd
drm_kms_helper evdev pcspkr drm k10temp i2c_algo_bit sp5100_tco i2c_piix4
i2c_core soundcore r8169 mii wmi button processor w83627ehf hwmon_vid
cpufreq_stats nls_cp437 vfat fat fuse ext4 crc16 jbd2 mbcache hid_generic
usbhid hid usb_storage sd_mod ahci libahci ehci_pci ohci_hcd ehci_hcd libata
usbcore usb_common scsi_mod
kernel: CPU 1 
kernel: Pid: 151, comm: systemd-udevd Not tainted 3.8.8-1-ARCH #1 System
manufacturer System Product Name/E35M1-M
kernel: RIP: 0010:[<ffffffffa034ceb8>]  [<ffffffffa034ceb8>]
radeon_atombios_get_power_modes+0x748/0x7f0 [radeon]
kernel: RSP: 0018:ffff8801b5d13a98  EFLAGS: 00010246
kernel: RAX: 0000000000000010 RBX: ffff8801b4afaffa RCX: 0000000000000000
kernel: RDX: 000000000000affa RSI: ffff8801b4afaffa RDI: 0000000000000000
kernel: RBP: ffff8801b5d13b00 R08: ffff8801b5d13ad3 R09: 0000000000000010
kernel: R10: ffff8801b4af0000 R11: 000000000000ab30 R12: 0000000000000000
kernel: R13: ffff8801b55e0000 R14: 0000000000000000 R15: ffff8801b4afaffa
kernel: FS:  00007f4618cf9780(0000) GS:ffff8801bed00000(0000)
knlGS:0000000000000000
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 0000000000000010 CR3: 00000001b50bd000 CR4: 00000000000007e0
kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
kernel: Process systemd-udevd (pid: 151, threadinfo ffff8801b5d12000, task
ffff8801b48fcb60)
kernel: Stack:
kernel:  0400080000000000 0000000004000800 ffff8801b4afaffa ffff8801b55e0000
kernel:  ffff8801b4afaffa 0000000000000202 0000000080000000 affaaffa01060106
systemd-udevd[130]: worker [151] terminated by signal 9 (Killed)
systemd-udevd[130]: worker [151] failed while handling
'/devices/pci0000:00/0000:00:01.0'
kernel:  ffff8801b5abec58 ffff8801b55e0000 ffff8801b5abe800 0000000000000000
kernel: Call Trace:
kernel:  [<ffffffffa039f507>] radeon_pm_init+0x3a7/0x580 [radeon]
kernel:  [<ffffffffa036bdc7>] ? radeon_modeset_init+0x3e7/0xba0 [radeon]
kernel:  [<ffffffffa036bf08>] radeon_modeset_init+0x528/0xba0 [radeon]
kernel:  [<ffffffffa03484d0>] radeon_driver_load_kms+0xf0/0x1a0 [radeon]
kernel:  [<ffffffffa02605d6>] drm_get_pci_dev+0x176/0x2b0 [drm]
kernel:  [<ffffffffa032e1c1>] ? radeon_pci_probe+0xa1/0xe0 [radeon]
kernel:  [<ffffffffa032e1d3>] radeon_pci_probe+0xb3/0xe0 [radeon]
kernel:  [<ffffffff8129556e>] local_pci_probe+0x3e/0x70
kernel:  [<ffffffff81295761>] pci_device_probe+0x111/0x120
kernel:  [<ffffffff8134c707>] driver_probe_device+0x87/0x3a0
kernel:  [<ffffffff8134caf3>] __driver_attach+0x93/0xa0
kernel:  [<ffffffff8134ca60>] ? __device_attach+0x40/0x40
kernel:  [<ffffffff8134a703>] bus_for_each_dev+0x63/0xa0
kernel:  [<ffffffff8134c18e>] driver_attach+0x1e/0x20
kernel:  [<ffffffff8134bc0a>] bus_add_driver+0xda/0x2b0
kernel:  [<ffffffffa040a000>] ? 0xffffffffa0409fff
kernel:  [<ffffffff8134d181>] driver_register+0x71/0x150
kernel:  [<ffffffffa040a000>] ? 0xffffffffa0409fff
kernel:  [<ffffffff812953fd>] __pci_register_driver+0x4d/0x50
kernel:  [<ffffffffa026082a>] drm_pci_init+0x11a/0x130 [drm]
kernel:  [<ffffffffa040a000>] ? 0xffffffffa0409fff
kernel:  [<ffffffffa040a0ec>] radeon_init+0xec/0xee [radeon]
kernel:  [<ffffffff8100210a>] do_one_initcall+0x10a/0x160
kernel:  [<ffffffff810bd85b>] load_module+0x1a0b/0x20d0
kernel:  [<ffffffff81286490>] ? ddebug_proc_write+0xf0/0xf0
kernel:  [<ffffffff810bdfc2>] sys_init_module+0xa2/0xf0
kernel:  [<ffffffff814c731d>] system_call_fastpath+0x1a/0x1f
kernel: Code: 01 7e 08 48 8b 52 08 83 4a 24 01 48 83 c0 30 48 39 c8 75 df 49 63
85 d4 12 00 00 83 f8 ff 0f 85 18 fa ff ff 49 8b 85 b8 12 00 00 <c7> 00 00 00 00
00 49 8b 85 b8 12 00 00 41 c7 85 d4 12 00 00 00 
kernel: RIP  [<ffffffffa034ceb8>] radeon_atombios_get_power_modes+0x748/0x7f0
[radeon]
kernel:  RSP <ffff8801b5d13a98>
kernel: CR2: 0000000000000010
kernel: ---[ end trace b7966bb12ee1e96d ]---

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