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SubjectRe: 2.6.18-rc4-mm1 BUG, drm related
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.

> [ 41.024000] BUG: unable to handle kernel paging request at virtual address 6e756f73
> [ 41.024000] printing eip:
> [ 41.024000] c01b5771
> [ 41.024000] *pde = 00000000
> [ 41.024000] Oops: 0000 [#1]
> [ 41.024000] 8K_STACKS PREEMPT
> [ 41.024000] last sysfs file: /devices/pci0000:00/0000:00:1d.7/usb5/5-0:1.0/bInterfaceProtocol
> [ 41.024000] 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 joydev tsdev
> [ 41.024000] CPU: 0
> [ 41.024000] EIP: 0060:[<c01b5771>] Not tainted VLI
> [ 41.024000] EFLAGS: 00210246 (2.6.18-rc4-mm1-def01 #1)
> [ 41.024000] EIP is at sysfs_lookup+0x65/0xb0
> [ 41.024000] eax: f3161e40 ebx: f316842c ecx: f73f6280 edx: f316842c
> [ 41.024000] esi: 6e756f73 edi: f3161ec4 ebp: f6c35dfc esp: f6c35de0
> [ 41.024000] ds: 007b es: 007b ss: 0068
> [ 41.024000] Process modprobe (pid: 8952, ti=f6c34000 task=f7d17550 task.ti=f6c34000)
> [ 41.024000] Stack: f316842c f3161e94 f31684bc 00000000 fffffff4 f73f72ec f3161e40 f6c35e1c
> [ 41.024000] c0184d42 f73f72ec f3161e40 00000000 ffffffff c03a6656 12fd28db f6c35e4c
> [ 41.024000] c0184e02 f6c35e30 f3161ee8 00000000 12fd28db 00000005 c03a6651 c038230e
> [ 41.024000] Call Trace:
> [ 41.024000] [<c0184d42>] __lookup_hash+0x9d/0xcc
> [ 41.024000] [<c0184e02>] lookup_one_len+0x71/0x86
> [ 41.024000] [<c01b51da>] create_dir+0x43/0x23f
> [ 41.024000] [<c01b53fc>] sysfs_create_subdir+0x26/0x28
> [ 41.024000] [<c01b6c56>] sysfs_create_group+0x77/0x97
> [ 41.024000] [<c02903af>] dpm_sysfs_add+0x1e/0x20
> [ 41.024000] [<c028f6b3>] device_pm_add+0x64/0x89
> [ 41.024000] [<c028930a>] device_add+0x1d9/0x380
> [ 41.024000] [<c02894cb>] device_register+0x1a/0x20
> [ 41.024000] [<c0289811>] device_create+0xaa/0xc4
> [ 41.024000] [<f8a0c472>] snd_register_device+0xcf/0x104 [snd]
> [ 41.024000] [<f8abd0c2>] snd_sequencer_device_init+0x4e/0x7c [snd_seq]
> [ 41.024000] [<f8abd02f>] alsa_seq_init+0x2f/0x51 [snd_seq]
> [ 41.024000] [<c014186c>] sys_init_module+0x163/0x221
> [ 41.024000] [<c0103135>] sysenter_past_esp+0x56/0x8d
> [ 41.024000] [<b7fb0410>] 0xb7fb0410
> [ 41.024000] [<c0104017>] show_trace_log_lvl+0x2f/0x45
> [ 41.024000] [<c01040ee>] show_stack_log_lvl+0x98/0xb2
> [ 41.024000] [<c0104351>] show_registers+0x1eb/0x289
> [ 41.024000] [<c0104587>] die+0x134/0x241
> [ 41.024000] [<c0385e80>] do_page_fault+0x395/0x620
> [ 41.024000] [<c0384401>] error_code+0x39/0x40
> [ 41.024000] [<c0184d42>] __lookup_hash+0x9d/0xcc
> [ 41.024000] [<c0184e02>] lookup_one_len+0x71/0x86
> [ 41.024000] [<c01b51da>] create_dir+0x43/0x23f
> [ 41.024000] [<c01b53fc>] sysfs_create_subdir+0x26/0x28
> [ 41.024000] [<c01b6c56>] sysfs_create_group+0x77/0x97
> [ 41.024000] [<c02903af>] dpm_sysfs_add+0x1e/0x20
> [ 41.024000] [<c028f6b3>] device_pm_add+0x64/0x89
> [ 41.024000] [<c028930a>] device_add+0x1d9/0x380
> [ 41.024000] [<c02894cb>] device_register+0x1a/0x20
> [ 41.024000] [<c0289811>] device_create+0xaa/0xc4
> [ 41.024000] [<f8a0c472>] snd_register_device+0xcf/0x104 [snd]
> [ 41.024000] [<f8abd0c2>] snd_sequencer_device_init+0x4e/0x7c [snd_seq]
> [ 41.024000] [<f8abd02f>] alsa_seq_init+0x2f/0x51 [snd_seq]
> [ 41.024000] [<c014186c>] sys_init_module+0x163/0x221
> [ 41.024000] [<c0103135>] sysenter_past_esp+0x56/0x8d
> [ 41.024000] =======================
> [ 41.024000] Code: 42 fc 89 c3 8b 40 04 0f 18 00 90 3b 55 ec 75 e6 8b 45 f0 83 c4 10 5b 5e 5f 5d c3 89 1c 24 e8 27 e9 ff ff 89 c6 8b 45 0c 8b 78 48 <ac> ae 75 08 84 c0 75 f8 31 c0 eb 04 19 c0 0c 01 85 c0 75 bd f6
> [ 41.024000] EIP: [<c01b5771>] sysfs_lookup+0x65/0xb0 SS:ESP 0068:f6c35de0
> [ 41.024000]
>
>
> There's only one BUG at each boot, and both alternate for no particular
> reason.
>
> The lspci, dmesg and .config can be found at:
> http://fdeweerdt.free.fr/drm_bug/
>
> Any ideas for further investigation?
>
> Thanks,
> Frederik
>
> [1] Andrew, could it be possible to put the 'mm.patch' at the very end
> or at the very beginning of the patches? It is misleading to have the
> kernel change it's name in the middle of a bisection :).
-
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