[Bug 669777] New: kernel NULL pointer dereference
https://bugzilla.novell.com/show_bug.cgi?id=669777 https://bugzilla.novell.com/show_bug.cgi?id=669777#c0 Summary: kernel NULL pointer dereference Classification: openSUSE Product: openSUSE 11.4 Version: Factory Platform: x86-64 OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: X.Org AssignedTo: bnc-team-xorg-bugs@forge.provo.novell.com ReportedBy: arysin@yahoo.com QAContact: xorg-maintainer-bugs@forge.provo.novell.com Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0b10) Gecko/20110121 Firefox/4.0b10 Feb 4 23:09:10 mypreciousss kernel: [ 31.682852] [drm] Initialized drm 1.1.0 20060810 Feb 4 23:09:10 mypreciousss kernel: [ 31.975238] [drm] radeon defaulting to kernel modesetting. Feb 4 23:09:10 mypreciousss kernel: [ 31.975241] [drm] radeon kernel modesetting enabled. Feb 4 23:09:10 mypreciousss kernel: [ 31.975301] checking generic (e0000000 1000000) vs hw (e0000000 10000000) Feb 4 23:09:10 mypreciousss kernel: [ 31.975303] fb: conflicting fb hw usage radeondrmfb vs VESA VGA - removing generic driver Feb 4 23:09:10 mypreciousss kernel: [ 31.975342] Console: switching to colour dummy device 80x25 Feb 4 23:09:10 mypreciousss kernel: [ 31.975673] radeon 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 Feb 4 23:09:10 mypreciousss kernel: [ 31.975679] radeon 0000:01:00.0: setting latency timer to 64 Feb 4 23:09:10 mypreciousss kernel: [ 31.977994] [drm] initializing kernel modesetting (RV620 0x1002:0x95C4). Feb 4 23:09:10 mypreciousss kernel: [ 31.978231] [drm] register mmio base: 0xF6DF0000 Feb 4 23:09:10 mypreciousss kernel: [ 31.978233] [drm] register mmio size: 65536 Feb 4 23:09:10 mypreciousss kernel: [ 31.978449] ATOM BIOS: Dell_HepburnFM6 Feb 4 23:09:10 mypreciousss kernel: [ 31.978483] radeon 0000:01:00.0: VRAM: 256M 0x0000000000000000 - 0x000000000FFFFFFF (256M used) Feb 4 23:09:10 mypreciousss kernel: [ 31.978486] radeon 0000:01:00.0: GTT: 512M 0x0000000010000000 - 0x000000002FFFFFFF Feb 4 23:09:10 mypreciousss kernel: [ 31.979670] [drm] Detected VRAM RAM=256M, BAR=256M Feb 4 23:09:10 mypreciousss kernel: [ 31.979673] [drm] RAM width 64bits DDR Feb 4 23:09:10 mypreciousss kernel: [ 31.980309] [TTM] Zone kernel: Available graphics memory: 1544078 kiB. Feb 4 23:09:10 mypreciousss kernel: [ 31.980312] [TTM] Initializing pool allocator. Feb 4 23:09:10 mypreciousss kernel: [ 31.980331] [drm] radeon: 256M of VRAM memory ready Feb 4 23:09:10 mypreciousss kernel: [ 31.980333] [drm] radeon: 512M of GTT memory ready. Feb 4 23:09:10 mypreciousss kernel: [ 31.980410] radeon 0000:01:00.0: irq 43 for MSI/MSI-X Feb 4 23:09:10 mypreciousss kernel: [ 31.980420] radeon 0000:01:00.0: radeon: using MSI. Feb 4 23:09:10 mypreciousss kernel: [ 31.980462] [drm] radeon: irq initialized. Feb 4 23:09:10 mypreciousss kernel: [ 31.980465] [drm] GART: num cpu pages 131072, num gpu pages 131072 Feb 4 23:09:10 mypreciousss kernel: [ 31.981563] [drm] Loading RV620 Microcode Feb 4 23:09:10 mypreciousss acpid: client connected from 1863[106:109] Feb 4 23:09:10 mypreciousss acpid: 1 client rule loaded Feb 4 23:09:10 mypreciousss kernel: [ 32.146281] radeon 0000:01:00.0: WB enabled Feb 4 23:09:10 mypreciousss kernel: [ 32.177911] [drm] ring test succeeded in 1 usecs Feb 4 23:09:10 mypreciousss kernel: [ 32.178069] [drm] radeon: ib pool ready. Feb 4 23:09:10 mypreciousss kernel: [ 32.178162] [drm] ib test succeeded in 0 usecs Feb 4 23:09:10 mypreciousss kernel: [ 32.178165] [drm] Enabling audio support Feb 4 23:09:10 mypreciousss kernel: [ 32.178433] [drm] Radeon Display Connectors Feb 4 23:09:10 mypreciousss kernel: [ 32.178435] [drm] Connector 0: Feb 4 23:09:10 mypreciousss kernel: [ 32.178436] [drm] VGA Feb 4 23:09:10 mypreciousss kernel: [ 32.178438] [drm] DDC: 0x7e20 0x7e20 0x7e24 0x7e24 0x7e28 0x7e28 0x7e2c 0x7e2c Feb 4 23:09:10 mypreciousss kernel: [ 32.178440] [drm] Encoders: Feb 4 23:09:10 mypreciousss kernel: [ 32.178441] [drm] CRT1: INTERNAL_KLDSCP_DAC1 Feb 4 23:09:10 mypreciousss kernel: [ 32.178443] [drm] Connector 1: Feb 4 23:09:10 mypreciousss kernel: [ 32.178444] [drm] LVDS Feb 4 23:09:10 mypreciousss kernel: [ 32.178446] [drm] DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c Feb 4 23:09:10 mypreciousss kernel: [ 32.178448] [drm] Encoders: Feb 4 23:09:10 mypreciousss kernel: [ 32.178449] [drm] LCD1: INTERNAL_KLDSCP_LVTMA Feb 4 23:09:10 mypreciousss kernel: [ 32.178450] [drm] Connector 2: Feb 4 23:09:10 mypreciousss kernel: [ 32.178451] [drm] HDMI-A Feb 4 23:09:10 mypreciousss kernel: [ 32.178452] [drm] HPD1 Feb 4 23:09:10 mypreciousss kernel: [ 32.178454] [drm] DDC: 0x7e60 0x7e60 0x7e64 0x7e64 0x7e68 0x7e68 0x7e6c 0x7e6c Feb 4 23:09:10 mypreciousss kernel: [ 32.178456] [drm] Encoders: Feb 4 23:09:10 mypreciousss kernel: [ 32.178457] [drm] DFP1: INTERNAL_UNIPHY Feb 4 23:09:10 mypreciousss kernel: [ 32.239437] [drm] radeon: power management initialized Feb 4 23:09:11 mypreciousss kernel: [ 32.711867] BIOS EDD facility v0.16 2004-Jun-25, 1 devices found Feb 4 23:09:11 mypreciousss kernel: [ 32.986546] BUG: unable to handle kernel NULL pointer dereference at 000000000000004c Feb 4 23:09:11 mypreciousss kernel: [ 32.986555] IP: [<ffffffff812af17a>] splash_read_proc+0x7a/0x100 Feb 4 23:09:11 mypreciousss kernel: [ 32.986565] PGD b6b02067 PUD b3e78067 PMD 0 Feb 4 23:09:11 mypreciousss kernel: [ 32.986571] Oops: 0000 [#1] PREEMPT SMP Feb 4 23:09:11 mypreciousss kernel: [ 32.986576] last sysfs file: /sys/devices/virtual/block/dm-0/uevent Feb 4 23:09:11 mypreciousss kernel: [ 32.986580] CPU 1 Feb 4 23:09:11 mypreciousss kernel: [ 32.986582] Modules linked in: edd radeon(+) ttm drm_kms_helper drm i2c_algo_bit microcode dm_crypt loop dm_mod snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep r852 sm_common snd_pcm dell_laptop uvcvideo nand sr_mod snd_timer lib80211_crypt_tkip videodev nand_ids rfkill cdrom wl(P) nand_ecc snd v4l1_compat v4l2_compat_ioctl32 mtd firewire_ohci firewire_core i2c_i801 tg3 soundcore sg sdhci_pci sdhci mmc_core snd_page_alloc dcdbas pcspkr video crc_itu_t iTCO_wdt shpchp dell_wmi sparse_keymap wmi pci_hotplug joydev battery button ac iTCO_vendor_support preloadtrace ext4 jbd2 crc16 fan processor thermal thermal_sys Feb 4 23:09:11 mypreciousss kernel: [ 32.986647] Feb 4 23:09:11 mypreciousss kernel: [ 32.986650] Pid: 1944, comm: sed Tainted: P 2.6.37-20-desktop #1 0H282K/Studio 1535 Feb 4 23:09:11 mypreciousss kernel: [ 32.986658] RIP: 0010:[<ffffffff812af17a>] [<ffffffff812af17a>] splash_read_proc+0x7a/0x100 Feb 4 23:09:11 mypreciousss kernel: [ 32.986666] RSP: 0018:ffff8800b425dde8 EFLAGS: 00010202 Feb 4 23:09:11 mypreciousss kernel: [ 32.986670] RAX: ffffc90005088000 RBX: 0000000000000000 RCX: 0000000000000007 Feb 4 23:09:11 mypreciousss kernel: [ 32.986674] RDX: ffffffff817d8a96 RSI: 0000000000000000 RDI: ffffffff817c8954 Feb 4 23:09:11 mypreciousss kernel: [ 32.986679] RBP: ffff8800b4bdf000 R08: 0000000000000001 R09: 0000000000000000 Feb 4 23:09:11 mypreciousss kernel: [ 32.986684] R10: ffffffff812af100 R11: 0000000000000000 R12: ffff8800b425de38 Feb 4 23:09:11 mypreciousss kernel: [ 32.986688] R13: 0000000000000400 R14: 0000000000000400 R15: 0000000000000400 Feb 4 23:09:11 mypreciousss kernel: [ 32.986693] FS: 00007f2b31495700(0000) GS:ffff8800bfd00000(0000) knlGS:0000000000000000 Feb 4 23:09:11 mypreciousss kernel: [ 32.986699] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Feb 4 23:09:11 mypreciousss kernel: [ 32.986703] CR2: 000000000000004c CR3: 00000000b3e7f000 CR4: 00000000000006e0 Feb 4 23:09:11 mypreciousss kernel: [ 32.986708] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Feb 4 23:09:11 mypreciousss kernel: [ 32.986713] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Feb 4 23:09:11 mypreciousss kernel: [ 32.986718] Process sed (pid: 1944, threadinfo ffff8800b425c000, task ffff8800b3e52500) Feb 4 23:09:11 mypreciousss kernel: [ 32.986723] Stack: Feb 4 23:09:11 mypreciousss kernel: [ 32.986726] ffff8800b3950440 ffff8800b425df58 fffffffffffffff4 ffff8800b425df58 Feb 4 23:09:11 mypreciousss kernel: [ 32.986734] 0000000000000000 00007f2b31337000 ffff8800b4bdf000 ffffffff811b30ff Feb 4 23:09:11 mypreciousss kernel: [ 32.986741] 0000000000000400 ffff8800b6630b40 0000000000000000 00000000b425dee8 Feb 4 23:09:11 mypreciousss kernel: [ 32.986748] Call Trace: Feb 4 23:09:11 mypreciousss kernel: [ 32.986763] [<ffffffff811b30ff>] __proc_file_read+0x1af/0x2d0 Feb 4 23:09:11 mypreciousss kernel: [ 32.986771] [<ffffffff811b328a>] proc_file_read+0x6a/0xb0 Feb 4 23:09:11 mypreciousss kernel: [ 32.986777] [<ffffffff811ad5fe>] proc_reg_read+0x7e/0xc0 Feb 4 23:09:11 mypreciousss kernel: [ 32.986785] [<ffffffff81152323>] vfs_read+0xc3/0x180 Feb 4 23:09:11 mypreciousss kernel: [ 32.986792] [<ffffffff8115242e>] sys_read+0x4e/0x90 Feb 4 23:09:11 mypreciousss kernel: [ 32.986799] [<ffffffff81002f8b>] system_call_fastpath+0x16/0x1b Feb 4 23:09:11 mypreciousss kernel: [ 32.986807] [<00007f2b30ff6df0>] 0x7f2b30ff6df0 Feb 4 23:09:11 mypreciousss kernel: [ 32.986811] Code: 44 8b 40 68 48 c7 c7 96 8a 7d 81 48 c7 c2 a5 92 79 81 c1 e1 04 0b 48 08 f6 00 01 48 0f 45 d7 45 85 c0 48 c7 c7 54 89 7c 81 74 76 <44> 8b 4e 4c 44 8b 46 48 31 c0 48 89 54 24 08 48 89 3c 24 48 c7 Feb 4 23:09:11 mypreciousss kernel: [ 32.986848] RIP [<ffffffff812af17a>] splash_read_proc+0x7a/0x100 Feb 4 23:09:11 mypreciousss kernel: [ 32.986854] RSP <ffff8800b425dde8> Feb 4 23:09:11 mypreciousss kernel: [ 32.986856] CR2: 000000000000004c Feb 4 23:09:11 mypreciousss kernel: [ 32.986861] ---[ end trace f6bac61b9a11e35f ]--- Feb 4 23:09:11 mypreciousss kernel: [ 33.229671] [drm] fb mappable at 0xE0141000 Feb 4 23:09:11 mypreciousss kernel: [ 33.229679] [drm] vram apper at 0xE0000000 Feb 4 23:09:11 mypreciousss kernel: [ 33.229683] [drm] size 5300224 Feb 4 23:09:11 mypreciousss kernel: [ 33.229686] [drm] fb depth is 24 Feb 4 23:09:11 mypreciousss kernel: [ 33.229689] [drm] pitch is 5888 Feb 4 23:09:11 mypreciousss kernel: [ 33.229952] Console: switching to colour frame buffer device 180x56 Feb 4 23:09:11 mypreciousss kernel: [ 33.229962] fb0: radeondrmfb frame buffer device Feb 4 23:09:11 mypreciousss kernel: [ 33.229966] drm: registered panic notifier Feb 4 23:09:11 mypreciousss kernel: [ 33.229974] [drm] Initialized radeon 2.7.0 20080528 for 0000:01:00.0 on minor 0 Reproducible: Sometimes Steps to Reproduce: 1. boot the system Actual Results: kernel NULL pointer dereference Also with recent Factory sometimes the whole system would lock up (it looks like the video driver problem as first the screen blanks and then it stops responding to keyboard). Though not sure if lockup is related to this NULL pointer problem. I've seen very similar problem couple months ago on Factory but subsequent updates made it go away, it seems like it's back again. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=669777
https://bugzilla.novell.com/show_bug.cgi?id=669777#c
Stefan Dirsch
https://bugzilla.novell.com/show_bug.cgi?id=669777
https://bugzilla.novell.com/show_bug.cgi?id=669777#c1
--- Comment #1 from Andriy Rysin
https://bugzilla.novell.com/show_bug.cgi?id=669777
https://bugzilla.novell.com/show_bug.cgi?id=669777#c2
Jeff Mahoney
https://bugzilla.novell.com/show_bug.cgi?id=669777
https://bugzilla.novell.com/show_bug.cgi?id=669777#c3
--- Comment #3 from Egbert Eich
https://bugzilla.novell.com/show_bug.cgi?id=669777
https://bugzilla.novell.com/show_bug.cgi?id=669777#c4
--- Comment #4 from Andriy Rysin
The EDID problems described in comment #1 have nothing to do with the NULL pointer issue. Please check your monitor with a different GFX card/ computer to make sure EDID data of the monitor itself isn't corrupted (yes this can happen!).
That'll be a bit hard to do as it's a laptop. :) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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--- Comment #5 from Egbert Eich
https://bugzilla.novell.com/show_bug.cgi?id=669777
https://bugzilla.novell.com/show_bug.cgi?id=669777#c
Jiri Slaby
https://bugzilla.novell.com/show_bug.cgi?id=669777
https://bugzilla.novell.com/show_bug.cgi?id=669777#c6
--- Comment #6 from Egbert Eich
https://bugzilla.novell.com/show_bug.cgi?id=669777
https://bugzilla.novell.com/show_bug.cgi?id=669777#c7
--- Comment #7 from Andriy Rysin
https://bugzilla.novell.com/show_bug.cgi?id=669777
https://bugzilla.novell.com/show_bug.cgi?id=669777#c8
Jeff Mahoney
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