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SubjectRe: [Announce] 2.6.29-rc8-rt2
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On Sat, 2009-03-21 at 12:06 -0700, Fernando Lopez-Lezcano wrote:
> On Sat, 2009-03-21 at 19:49 +0100, Ingo Molnar wrote:
> > * Fernando Lopez-Lezcano <nando@ccrma.Stanford.EDU> wrote:
> >
> > > Mar 21 10:47:43 localhost kernel: kernel tried to execute NX-protected
> > > page - exploit attempt? (uid: 0)
> > > Mar 21 10:47:43 localhost kernel: BUG: unable to handle kernel paging
> > > request at f6400800
> >
> > kernel tried to execute some really weird address, probably via a
> > function pointer.
>
> Strangely enough rc8-rt1 boots (almost). _Exact_ same build with the
> exception of the change from rt1 -> rt2.
>
> Haldaemon does not start on boot (fails), if I login as root and start
> the haldaemon service manually it starts. And then things seem to work
> fine (I'm writing this email from that machine). Still investigating...

First problem was due to old firmware for the iwl3945 hardware. I
updated to the latest and hal started fine (this is on fc9).

Now another one related to xorg/drm...
Oh well...
-- Fernando



Mar 21 12:17:51 localhost kernel: ------------[ cut here ]------------
Mar 21 12:17:51 localhost kernel: kernel BUG at
drivers/gpu/drm/drm_fops.c:146!
Mar 21 12:17:51 localhost kernel: invalid opcode: 0000 [#1] PREEMPT SMP
Mar 21 12:17:51 localhost kernel: last sysfs
file: /sys/devices/pci0000:00/0000:00:02.0/drm/card0/dri_library_name
Mar 21 12:17:51 localhost kernel: Modules linked in: i915 drm
i2c_algo_bit bridge stp bnep rfcomm l2cap sunrpc ip6t_REJECT
nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 cpufreq_ondemand
acpi_cpufreq dm_multipath snd_hda_codec_analog snd_hda_intel
snd_hda_codec snd_hwdep thinkpad_acpi snd_seq_dummy snd_seq_oss
snd_seq_midi_event hwmon snd_seq sdhci_pci arc4 snd_seq_device sdhci
pcspkr joydev mmc_core snd_pcm_oss ecb i2c_i801 yenta_socket
snd_mixer_oss rsrc_nonstatic ricoh_mmc ohci1394 iTCO_wdt
iTCO_vendor_support i2c_core iwl3945 snd_pcm video snd_timer snd rfkill
output soundcore e1000e mac80211 btusb snd_page_alloc lib80211 bluetooth
cfg80211 ata_generic pata_acpi uhci_hcd ohci_hcd ehci_hcd [last
unloaded: microcode]
Mar 21 12:17:51 localhost kernel:
Mar 21 12:17:51 localhost kernel: Pid: 2809, comm: Xorg Not tainted
(2.6.29-0.2.rt1.1.rc8.fc9.ccrma.i686.rtPAE #1) 6463CTO
Mar 21 12:17:51 localhost kernel: EIP: 0060:[<f85a7471>] EFLAGS:
00013216 CPU: 0
Mar 21 12:17:51 localhost kernel: EIP is at drm_open+0x442/0x48d [drm]
Mar 21 12:17:51 localhost kernel: EAX: f59339a4 EBX: f45a582c ECX:
f4584564 EDX: f45a5800
Mar 21 12:17:51 localhost kernel: ESI: 00000000 EDI: f45a582c EBP:
f4570e64 ESP: f4570e40
Mar 21 12:17:51 localhost kernel: DS: 007b ES: 007b FS: 00d8 GS: 0033
SS: 0068 preempt:00000001
Mar 21 12:17:51 localhost kernel: Process Xorg (pid: 2809, ti=f4570000
task=f44e6d70 task.ti=f4570000)
Mar 21 12:17:51 localhost kernel: Stack:
Mar 21 12:17:51 localhost kernel: f4955e00 f4584564 f45a5800 f5883400
00000000 f45ca394 ffffffed f85b2338
Mar 21 12:17:51 localhost kernel: f4955e00 f4570e7c f85a6fe4 f4584564
00000000 f45433c0 f45433c0 f4570ea0
Mar 21 12:17:51 localhost kernel: c04ae3bd f4955e00 f4584564 00000000
00000000 f4955e00 00000000 f4584564
Mar 21 12:17:51 localhost kernel: Call Trace:
Mar 21 12:17:51 localhost kernel: [<f85a6fe4>] ? drm_stub_open+0xa5/0xf0
[drm]
Mar 21 12:17:51 localhost kernel: [<c04ae3bd>] ? chrdev_open+0x112/0x129
Mar 21 12:17:51 localhost kernel: [<c04aa8a5>] ? __dentry_open
+0x146/0x23a
Mar 21 12:17:51 localhost kernel: [<c04aaa33>] ? nameidata_to_filp
+0x2c/0x43
Mar 21 12:17:51 localhost kernel: [<c04ae2ab>] ? chrdev_open+0x0/0x129
Mar 21 12:17:51 localhost kernel: [<c04b489c>] ? do_filp_open
+0x35d/0x677
Mar 21 12:17:51 localhost kernel: [<c0456d82>] ? rt_spin_lock_fastlock
+0x27/0x5e
Mar 21 12:17:51 localhost kernel: [<c0456d82>] ? rt_spin_lock_fastlock
+0x27/0x5e
Mar 21 12:17:51 localhost kernel: [<c04aa68b>] ? do_sys_open+0x42/0xb7
Mar 21 12:17:51 localhost kernel: [<c04aa742>] ? sys_open+0x1e/0x26
Mar 21 12:17:51 localhost kernel: [<c0408720>] ? sysenter_do_call
+0x12/0x28
Mar 21 12:17:51 localhost kernel: Code: 83 c3 2c 89 d8 e8 a5 ea 13 c8 8b
4d e8 83 79 04 01 75 2e 8b 55 e4 8b 82 d4 02 00 00 85 c0 74 0f 8b 4d e0
3b 81 e0 00 00 00 74 16 <0f> 0b eb fe 8b 55 e0 8b 4d e4 8b 82 e0 00 00
00 89 81 d4 02 00
Mar 21 12:17:51 localhost kernel: EIP: [<f85a7471>] drm_open+0x442/0x48d
[drm] SS:ESP 0068:f4570e40
Mar 21 12:17:51 localhost kernel: ---[ end trace ebf0ba7e33809de9 ]---





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