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SubjectRe: 2.6.18-rc4-mm1 BUG, drm related
On Tue, Aug 15, 2006 at 07:16:32AM -0700, Andrew Morton wrote:
> On Tue, 15 Aug 2006 13:25:56 +0000
> Frederik Deweerdt <deweerdt@free.fr> wrote:
>
> > On Sun, Aug 13, 2006 at 01:24:54AM -0700, Andrew Morton wrote:
> > >
> > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc4/2.6.18-rc4-mm1/
> > >
> > Hi,
> >
> > There are two BUGs with 2.6.18-rc4-mm1 that seem related to (I did the
> > bisection[1]):
> > git-drm.patch
> > drm-build-fix.patch
> > drm-build-fixes-2.patch
> > allow-drm-detection-of-new-via-chipsets.patch
> > git-drm-build-fix.patch
> >
> > Here's one of the BUGs (the second one is on the web site below).
> > [ 40.276000] [drm:drm_unlock] *ERROR* Process 8914 using kernel context 0
>
> I guess the above is a non-fatal DRM warning.
>
> The below is an ALSA oops.
Hmm, that's what I thought at first, but consider the second BUG (as I
said, both BUGs, the ALSA one and that one appear alternatively):
[ 35.600000] [drm:drm_unlock] *ERROR* Process 8835 using kernel context 0
[ 36.328000] BUG: unable to handle kernel paging request at virtual address 746c6139
[ 36.328000] printing eip:
[ 36.328000] c01fcf39
[ 36.328000] *pde = 00000000
[ 36.328000] Oops: 0000 [#1]
[ 36.328000] PREEMPT
[ 36.328000] last sysfs file: /devices/pci0000:00/0000:00:1d.7/usb5/5-0:1.0/bInterfaceProtocol
[ 36.328000] Modules linked in: snd_seq snd_seq_device ohci_hcd parport_pc parport pcspkr ipw2200 yenta_socket rsrc_nonstatic pcmcia_core snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc ehci_hcd uhci_hcd usbcore cpufreq_stats cpufreq_powersave cpufreq_ondemand cpufreq_conservative speedstep_centrino freq_table processor ac battery i915 drm tg3 tsdev joydev
[ 36.328000] CPU: 0
[ 36.328000] EIP: 0060:[<c01fcf39>] Not tainted VLI
[ 36.328000] EFLAGS: 00010297 (2.6.18-rc4-def01 #12)
[ 36.328000] EIP is at vsnprintf+0x2da/0x4f9
[ 36.328000] eax: 746c6139 ebx: 0000000a ecx: 746c6139 edx: fffffffe
[ 36.328000] esi: f75fa28c edi: 00000000 ebp: f3701ebc esp: f3701e80
[ 36.328000] ds: 007b es: 007b ss: 0068
[ 36.328000] Process modprobe (pid: 8872, ti=f3700000 task=f7189540 task.ti=f3700000)
[ 36.328000] Stack: f75fa283 f75fb000 00000002 00000000 0000000a fffffffb 00000000 00000000
[ 36.328000] ffffffff ffffffff ffffffff f75fb000 f7129240 f8a1f980 f7129240 f3701ed8
[ 36.328000] c01948a4 f75fa28c 00000d74 c039b84c f3701eec c039ad97 f3701efc c013fd08
[ 36.328000] Call Trace:
[ 36.328000] [<c01948a4>] seq_printf+0x32/0x55
[ 36.328000] [<c013fd08>] print_unload_info+0x6f/0xe9
[ 36.328000] [<c0142073>] m_show+0x4b/0xb5
[ 36.328000] [<c019440f>] seq_read+0x248/0x2ee
[ 36.328000] [<c0171bef>] vfs_read+0x1c1/0x1c6
[ 36.328000] [<c0171f0a>] sys_read+0x4b/0x75
[ 36.328000] [<c0103139>] sysenter_past_esp+0x56/0x8d
[ 36.328000] [<b7fb7410>] 0xb7fb7410
[ 36.328000] [<c0104205>] show_stack_log_lvl+0x98/0xb2
[ 36.328000] [<c0104434>] show_registers+0x1b7/0x22f
[ 36.328000] [<c010460a>] die+0x11e/0x226
[ 36.328000] [<c0379dc2>] do_page_fault+0x38c/0x616
[ 36.328000] [<c0103cad>] error_code+0x39/0x40
[ 36.328000] [<c01948a4>] seq_printf+0x32/0x55
[ 36.328000] [<c013fd08>] print_unload_info+0x6f/0xe9
[ 36.328000] [<c0142073>] m_show+0x4b/0xb5
[ 36.328000] [<c019440f>] seq_read+0x248/0x2ee
[ 36.328000] [<c0171bef>] vfs_read+0x1c1/0x1c6
[ 36.328000] [<c0171f0a>] sys_read+0x4b/0x75
[ 36.328000] [<c0103139>] sysenter_past_esp+0x56/0x8d
[ 36.328000] Code: fd ff ff 83 cf 40 bb 10 00 00 00 eb 88 8b 45 14 83 45 14 04 8b 55 e8 8b 08 b8 e4 81 3a c0 81 f9 ff 0f 00 00 0f 46 c8 89 c8 eb 06 <80> 38 00 74 07 40 4a 83 fa ff 75 f4 29 c8 83 e7 10 89 c3 0f 85
[ 36.328000] EIP: [<c01fcf39>] vsnprintf+0x2da/0x4f9 SS:ESP 0068:f3701e80

Please notice how the BUG comes right after the drm warning.

Regards,
Frederik
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